Richard Perez

Solar Energy Resource assessment

Because the weather is the main driver of solar energy technologies, it is important to characterize and to quantify the influences of climate and weather on the solar resource. We have developed approaches to utilize the imagery from weather satellites to infer the amount of solar energy available at any point in time and space. We have used this capability to produce solar resource maps for the US and several other countries, and to provide operational data for solar system output quality control.

Evaluating the impact of solar energy systems on utility power grids

The resource information developed above can be used effectively to simulate the operation of solar power plants and to gauge their impact on utility grids' power flow. An important application of this is to detect, quantify and monitor the capability of dispersed photovoltaic systems to help utilities meet their peak demand requirements and to minimize the risks of power outages.

Research Website

2011

Journals & Peer-Reviewed

Perez, R., Kivalov, S., Schlemmer, J., Hemker Jr. and T. E. Hoff, 2011. Parameterization of site-specific short-term irradiance variability, Solar Energy, Volume 85, Issue 7, July 2011, Pp. 1343-1353

Hoff T., & R. Perez (2011): Modeling PV Fleet Output Variability, Solar Energy (In Press -- available online in Dec. 2011 at: http://www.sciencedirect.com/science/article/pii/S0038092X11004154)

Perez, R., K. Zweibel and T.E. Hoff, (2011): Solar Power Generation in the US: Too Expensive, or a Bargain? Journal of Energy Policy, 39 (2011), 7290-7297

Perez R. and M. Perez (2011) Una Mirada Fundamental a las reservas de energía de la planeta. Revista de Energias Renovables - Julio-Septiembre 11 -- Asociación de Energía Solar, México

Perez R. and T. Hoff, (2011): Solar Resource variability – Myth and Fact. Solar Today, September/October 2011

Conference Proceedings

Perez, R., Kivalov, S., Schlemmer, J., Hemker Jr., and T. Hoff, 2011. Short-term irradiance variability correlation as a function of distance. Proc. Solar 2011, American Solar Energy Society Conference, Raleigh, NC. & Submitted to Solar Energy (accepted 2/12)

Perez, R., M. Beauharnois, K. Hemker Jr., S. Kivalov, E. Lorenz, S. Pelland, J. Schlemmer, and G. Van Knowe, (2011): Evaluation of Numerical Weather Prediction Solar Irradiance Forecasts in the US. Proc. Solar 2011, American Solar Energy Society’s annual conference

Perez, R., S. Kivalov, T. Hoff, (2011): Spatial & temporal characteristics of solar radiation variability. Proc. of International Solar Energy World Congress, Kassel, Germany

Cebecauer, T., R. Perez and M. Suri, (2011): Comparing performance of SolarGIS and SUNY satellite models using monthly and daily aerosol data. Proc. of International Solar Energy World Congress, Kassel, Germany

Stackhouse, P., S. Cox, w. Chandler, J. Hoell, T. Zhang, D. Westberg, R. Perez, C. Hemker, J. Schlemmer, D. Renné, M. Sengupta, J. bates, K. Knapp, (2011): Towards and Improved High Resolution Global Long- term Solar Resource Database. Proc. Solar 2011, American Solar Energy Society’s annual conference

Reports and Invited

Perez R, and K. Hemker, Jr., (2011): Solar Forecasting Characterization. Report on Contract No. AGJ-1- 11854-01 Alliance for Sustainable Energy (National Renewable Energy laboratory)

Perez. R., (2011): Solar Grid Parity: a value-based perspective. Invited presentation, ASES Annual Conference, Raleigh, NC.

Perez R., (2011): Current body of knowledge. Invited presentation, Solar Resources and Forecasting Workshop, Golden Co.

Perez R., (2011): Short-term and Day-ahead Solar Forecasting. Invited presentation, Solar Resources and Forecasting Workshop, Golden Co. Perez R., (2011): Current body of knowledge. Invited presentation, Solar Resources and Forecasting Workshop, Golden Co.

Perez R., (2011): Modeling for System Integration Studies. Invited presentation, Solar Resources and Forecasting Workshop, Golden Co.

Perez R., (2011): On Solar Forecasting. AMS Summer Community meeting, Boulder, CO

Perez R., (2011): Solar Energy cost and value. Invited Plenary Talk, International Solar Energy Society World Congress, Kassel, Germany.

Perez, R., (2011): La Valor de la Energía Solar. Invited Keynote presentation, Mexican Solar Energy Society Annual Conference. Chihuahua, Mexico.

Perez, R., (2011): The value of solar energy generation. Invited presentation. George Washington University Solar Energy Institute’s Annual Symposium.

Perez, R., (2011): Solar resource in Mexico, Invited presentatation, Comisión Federal de Electricidad, Morelia, Mexico.

Perez, R., (2011): Solar resource assessment and forecasting, Invited presentation, IBM Watson Research Center, Westchester, NY.

Perez, R., (2011): Solar Energy, too expensive, or a bargain? Invited presentation, The Sierra Club, New York City, NY.

Perez, R., (2011): Solar Resource Variability. Invited Presentation, Utility Wind Integration Group workshop, Albany, NY.

2010

Journals & Peer-Reviewed Hoff T., and R. Perez, (2010): Quantifying PV Power Output Variability. Solar Energy 84, 10, 1782-1793. Perez R., S. Kivalov, J. Schlemmer, K. Hemker Jr., D. Renné and T. Hoff (2010) : Validation of Short and Medium Term Operational Solar Radiation Forecasts in the US. Solar Energy 84, 12, 2161-2172

Conference Proceedings

Hoyer-Klick C., J. McIntosh, M. Moner-Girona, D. Renné, R. Perez & D. Puig, (2010) Developing a Guide for Non-experts to Determine the Most Appropriate Use of Solar Energy Resource Information, Conference EUROSUN 2010, Graz, Austria

Perez, R., T. Hoff and M. Perez, (2010): Quantifying the Cost of High PV Penetration. Proc. of ASES National Conference, Phoenix, AZ

Perez R., S. Kivalov, A. Zelenka, J. Schlemmer and K. Hemker Jr., (2010):.Improving The Performance of Satellite-to-Irradiance Models using the Satellite’s Infrared Sensors. Proc., ASES Annual Conference, Phoenix, Arizona.

Stein J., R. Perez, A. Parkins, (2010): Validation of PV Performance Models Using Satellite-Based Irradiance Measurements: a Case Study. Proc. Solar 2010, ASES Annual Conference.

Cebecauer T., M. Suri and R. Perez, (2010): High performance MSG satellite model for operational solar energy applications. Proc. Solar 2010, ASES Annual Conference, Phoenix, AZ

Reports and Invited

Perez, R., (2010): The Value of Distributed PV generation, Invited presentation, ASES Annual Conference, Phoenix, AZ

Perez, R., (2010): Solar vs. traditional generation: A value-based perspective & Solar resource information logistics. Invited Seminar, University of Baeza, Baeza, Spain Perez R., (2010): Why Solar Makes Sense in Georgia. Invited Presentation, Georgia Tech, Atlanta, GA. Perez R., (2010): Solar vs. Traditional Generation – cost vs. value. Invited presentation. Solar Power International, Los Angeles, CA

2009

Journals & Peer-Reviewed

Perez R., M.Taylor, T.Hoff and J.P Ross, (2009): Redefining PV Capacity. Public Utilities Fortnightly, February 2009, pp. 44-50,

Perez R., (2009): Solar power: A Realistic Solution for New York’s Energy Future. Sierra Atlantic Volume 36, Summer 2009.

Perez, R. and M. Perez, (2009): A fundamental look at energy reserves for the planet. The IEA SHC Solar Update, Volume 50, pp. 2-3, April 2009.

Perez R., (2009): Renewable Energies -- Our Solar Future/ Daylight & Architecture Magazine by Velux, Issue No. 12 (special Copenhagen Summit Issue), pp. 66-73.

Conference Proceedings

Perez R., S. Kivalov, J. Schlemmer, K. Hemker Jr., D. Renné and T. Hoff, (2009): Validation of Short and Medium Term Operational Solar Radiation Forecasts in the US. Proc. ASES Annual Conference, Buffalo, New York.

Perez R., J. Schlemmer, D. Renne, S. Cowlin, R. George and B. Bandyopadhyay, (2009): Validation of the SUNY Satellite Model in a Meteosat Environment. Proc. ASES Annual Conference, Buffalo, New York.

Reports and Invited

Perez R., (2009): The Value of Photovoltaic PV Generation, Invited Presentation, 2009 New York City Solar Summit, John Jay College, New York, NY

Perez R., (2009): The Value of Distributed PV Generation, 2009 Solar Power International Conference, Anaheim, California

Perez R. (2009): Solar Resource Characterization. 2009 Nextera Solar Energy Conference, Phoenix, Arizona

Hoff T. and R. Perez, (2009): Quantifying PV Power Output Variability – Clean Power Research Technical Report

2008

Journals & Peer-Reviewed

Perez R. and M. Perez (2008): Making the Case for Solar Energy. Daylight & Architecture Magazine by Velux. Autumn 2008, Issue No. 9, pp. 8-17.

Conference Proceedings

Perez, R. M. Taylor, T. Hoff and JP Ross, (2008): Achieving Consensus in the Determination of Photovoltaics Capacity Credit, Proc. ASES Annual Meeting, San Diego, CA

Hoff T., R. Perez, JP Ross, and Mike Taylor, (2008): Photovoltaic Capacity Valuation Methods. SEPA REPORT # 02-08. Solar Electric power Association, Washington, DC

J. Remund, R. Perez and E. Lorenz , (2008): Comparison of Solar Radiation Forecasts for the USA. Proc. 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain

McNamara, A., J. Perlman and R. Perez, (2008): Simulated Performance of Solar Domestic Hot Water Technologies in New York State. Proc. of Simbuilding conference July 2008, Berkeley, CA

Perez R. and T. Hoff, (2008): Energy and Capacity Valuation of Photovoltaic Power Generation in New York. Published by the New York Solar Energy Industry Association and the Solar Alliance.

Perez R. and M. Perez (2008): Making the Case for Solar Energy. Daylight & Architecture Magazine by Velux. Autumn 2008, Issue No. 9, pp. 8-17.

Perez R., and T. Thompson, (2008): Solar Energy. A strategic position paper prepared for the New York League of Conservation Voters.

Perez, Taylor, Hoff and Ross, (2008): Reaching Consensus in the Definition of Photovoltaics Capacity Credit in the USA. IEE Transaction on Geoscience and Remote Sensing TGRS-2008-00157.R1

Paul W. Stackhouse, Jr., Taiping Zhang, William S. Chandler, Charles H. Whitlock, James M. Hoell, David J. Westberg, Richard Perez, Steve Wilcox, (2008): satellite Based Assessment of the NSRDB Site Irradiances and Time Series from NASA and SUNY/Albany Algorithms. Proc. ASES Annual Meeting, San Diego, CA.

2007

Perez, R., K. Moore, S. Wilcox, D. Renne, and A. Zelenka, (2007): Forecasting Solar Radiation – Preliminary Evaluation of an Approach Based upon the national Forecast Data Base. Solar Energy 81, 6, pp. 809-812.

Vignola, F., P. Harlan, R. Perez and M. Kmiecik (2007): Analysis of Satellite-Derived Beam and Global Solar Radiation Data. Solar Energy 81, 6, pp. 768-772

Hoff, T., R. Perez, and R. Margolis, (2007): Maximizing the Value of Customer-Sited PV Systems Using Storage and Controls. Solar Energy 81, 7, pp. 940-946.

Wilcox, S., M. Anderberg, R. George, W. Marion, D. Myers and D. Renne', N. Lott and T. Whitehurst, W. Beckman, C. Gueymard, R. Perez, P. Stackhouse, and F. Vignola, University of Oregon, (2007): Completing Production of the Updated National Solar Radiation Database for the United States. Proc. ASES Annual meeting, Cleveland, OH

Perez R., M. Kmiecik, S. Wilcox, and P. Stackhouse, (2007): Enhancing the Geographical and Time Resolution of NASA SSE Time Series Using Microstructure Patterning. Proc. ASES Annual meeting, Cleveland, OH

Perez, R., M. Kmiecik, J. Schlemmer and L. Root, K. Moore and P. Stackhouse (2007): Evaluation of PV Generation Capacity Credit Forecast on Day-Ahead Utility Markets. Proc. ASES Annual meeting, Cleveland, OH

George, R., S. Wilcox, M. Anderberg, and R. Perez, (2007): National Solar Radiation Database (NSRDB) - 10 Km Gridded Hourly Solar Database. Proc. ASES Annual meeting, Cleveland, OH

Perez, R., (2007): Satellite Models in the National Solar resource Data base. Invited presentation at the NSRDB forum, ASES Annual conference, Cleveland OH

Perez, R., (2007): On photovoltaic capacity credit. Invited presentation at the NSRDB forum, ASES Annual conference, Cleveland OH

2006

Perez, R, (2006): Chapter 1 - Emerging Opportunities for Improved Solar Resource Information. Solar Resource Knowledge for Management of Renewable Electricity Generation from Local Level to Global Scale. NOVA SCIENCE PUBLISHERS. Editors: E.D. Dunlop, L. Wald, M. Šúri

Letendre, S. E., R. Perez and C. Herig, (2006): Solar Vehicles at Last? Solar Today 20, 3, May/June 2005 Issue. Pp. 26-29.

Perez, R., R. Margolis, M. Kmiecik, M. Schwab and M. Perez, (2006): Update: Effective Load Carrying Capability of Photovoltaics in the United States. Proc. ASES Annual Conference, Denver, CO

Perez R., M. Kmiecik, S. Wilcox, P. Stackhouse Jr., (2006): Deriving Long Term High Resolution Solar Irradiances from Low Resolution Archives Via Microstructure Patterning. Proc. ASES Annual Conference, Denver, CO

Perez, R. K. Moore and P. Stackhouse, (2006): Independent Validation of NDFD-Based Solar Radiation Forecasts. Proc. ASES Annual Conference, Denver, CO

Riihimaki, L., F. Vignola, S. Lohmann, R. Meyer and R. Perez, (2006): Long-term Variability of Global and Beam Irradiance in the Pacific Northwest. Proc. ASES Annual Conference, Denver, CO

Wilcox, S., M. Anderberg, R. George, W. Marion, D. Myers, D. Renné, W. Beckman, A. DeGaetano, C. Gueymard, R. Perez, N. Lott, P. Stackhouse and F. Vignola, (2006): Towards Production of an Updated National Solar Radiation Data base. Proc. ASES Annual Conference, Denver, CO

Stackhouse, P., D. Renné, R. Perez, H. G. Beyer, R. Meyer, M. Schroedter-Homscheidt, L. Wald, M. Šúri, (2006): Towards Designing an Integrated Earth Observation System for the Provision of Solar Energy Resource and Assessment. Invited plenary article, 2006 IEEE International Geoscience and Remote Sensing Symposium.

Hoff T., R. Perez, G. Braun, M. Kuhn and B. Norris (2006): The Value of Distributed Photovoltaics to Austin Energy and the City of Austin. Final Report to Austin Energy (SL04300013). WEB-OK] http://www.austinenergy.com/About%20Us/Newsroom/Reports/PV-ValueReport.pdf

Hoff T. and R. Perez (2005): PV Effective Capacity Enhancement Using Load Control for Selected Buildings in SMUD Territory and Determination of Stacked Benefits of Both Utility-Owned and Customer-Owned PV Systems. Consultant Report prepared for the Sacramento Municipal Utility District under California Energy Commission Public interest energy Research [PDF-not-OK-call-SMUD std by…

Perez, R. (2006): Integration of PV in Demand Response Programs, NREL subcontract # AEK-5-55057-01 final Report, and Proc. New Energies Symposium, Albany Nanotech, June 2006. [PDF-OK]

Letendre S. and R. Perez, (2006): Understanding the Benefits of Dispersed Grid-Connected Photovoltaics: From Avoiding the Next Major Outage to Taming Wholesale Power Markets. The Electricity Journal, 19, 6, 64-72. [PDF-OK submitted manuscript only on web]

Perez, R., (2006): Solar Energy -- A Realistic Solution to Our Energy Future. The Journal of County Administration, June 2006 Issue, 1-5. [PDF-OK]

Perez, R., J. Schlemmer, M. Kmiecik, M. Beauharnois, T. Hoff, P. Gruenhagen, K. Peskett, K. Moore, V. Collelo and A. Ferranti, (2006): Verifying PV System Performance Using Satellite Data: NYSERDA’s Approach. Proc. Solar Power 2006 Conference, San Jose, CA

2005

Hoff, T.E., R. Perez and R. Margolis, (2005): Maximizing the Value of Customer-Sited PV Systems Using Storage and Controls. Proc. ISES World Congress, Orlando, FL

Perez, R. K. Moore, S. Wilcox, D. Renné and A. Zelenka (2005): Forecasting Solar Radiation: Preliminary Evaluation of an Approach Based upon the National Forecast Data Base, Proc. ISES World Congress, Orlando, FL

Perez R., B. Collins, R. Margolis, T. Hoff, C. Herig J. Williams and S. Letendre, (2005) Solution to the Summer Blackouts – How dispersed solar power generating systems can help prevent the next major outage. Solar Today 19,4, July/August 2005 Issue, pp. 32-35.

Mehos M. and R. Perez, (2005): Mining for Solar Resources; Imaging Notes, 20, 2, pp. 12-15.

Vignola F., P. Harlan, R. Perez and M. Kmiecik (2005): Analysis of Satellite Derived Beam and Global Solar Radiation Data. Proc. ISES World Congress, Orlando, FL

Wilcox, S., R. Perez, R. George, W. Marion, D. Meyers, D. Renné, A. DeGaetano, and C. Gueymard, (2005): Progress on an Updated National Solar Radiation Data Base for the United States. Proc. ISES World Congress, Orlando, FL

Perez, R. and M. Kmiecik, (2005): Ground-Truth Evaluation of NASA-SSE and SUNY-Albany Models. Technical Report to NASA Langley, (12 pp., SAIC contract # 4400113425)

Perez, R. and M. Kmiecik, (2005): Microclimatic structure of local NASA SSE data cells. Technical Report to NREL, (6 pp., NREL subcontract # AE144444101)

Perez, R. (2005): Preliminary Survey of Industry’s Solar Resource Requirements. Technical Report to NASA Langley, (6 pp. SAIC contract # 4400113425)

Perez R., and K. Moore, (2005): Multi-Site Evaluation of NDFD-Based Global Irradiance Forecasts. Technical Report to NASA Langley, (9 pp. SAIC contract # 4400113425)

Vignola F., and R. perez (2005): Solar Resource Data base for the pacific Northwest Using Satellite Data. Final Report to USDOE. http://solardata.uoregon.edu/download/misc/doefinalreport.pdf

2004

Perez, R., T. Hoff and R. Reed (2004): Validation of a simplified PV simulation engine. Solar Energy 77, 4, 357-363

Perez R., P. Ineichen, M. Kmiecik, K. Moore, R. George and D. Renne, (2004): Producing satellite-derived irradiances in complex arid terrain. Solar Energy 77, 4, 363-370

Perez R., L. Burtis, T. Hoff, S. Swanson and C. Herig, (2004): Quantifying residential PV economics --- payback vs. cash flow determination of fair energy value. Solar Energy 77, 4, 363

Perez, (2004): Determination of Photovoltaic Effective Capacity for New Jersey. Report prepared for Board of Public Utilities, Newark, NJ.

R. Perez, M. Kmiecik, T. Hoff, C. Herig., S. Letendre, J. Williams and R. Margolis, (2004): Availability of Dispersed Photovoltaic Resource During the August 14th 2003 Northeast Power Outage. Proc. ASES Natl. Conference, Portland, OR

Perez R., M. Kmiecik, k. Moore, S. Wilcox, R. George, D. Renne, F. Vignola, and P. Ineichen (2004): Status of high resolution solar irradiance mapping from satellite data. Proc. ASES Annual Meeting, Portland, OR.

Beyer H.G., E. Pereira, F. Martins, S. Abreu1, S. Colle, R. Perez, C. Schillings, H. Mannstein, R. Meyer, (2004): Assessing satellite derived irradiance information for South America within the UNEP resource assessment project SWERA. Eurosun Conference, Freiburg, Germany

Wilcox S., M. Anderberg, R. George, W. Marion, D. Myers, D. Renné, W. Beckman, A. DeGaetano, C. Gueymard, R. Perez, M. Plantico, P. Stackhouse, F. Vignola (2004): Progress on an Updated National Solar Radiation Data Base. Proc. Annual ASES Conference, Portland, OR.

R. Perez, M. Kmiecik, T. Hoff, C. Herig., S. Letendre, J. Williams and R. Margolis, (2004): Distributed PV Solutions for Power Outages: Case Study of the August 14th 2003 Northeast Power Blackout. World Renewable Energy Congress, Denver, CO.

Perez, R., M. Kmiecik, K. Moore, D. Renne, R. George, L. Brady-sabeff, R. Meyer, C. Schillings and E. Pereira, (2004): High-Resolution Solar Resource Mapping for Central America and Cuba under the UNEP SWERA Project. Proc. 19th European photovoltaic solar Energy Conference and Exhibition, Paris, France.

Perez R., and T. Hoff, (2004): Field Validation of the Clean Power Estimator’s Obstruction Analysis Algorithm. Proc. of 19th European Photovoltaic Conference, Paris, France. Perez R. and B. Collins, (2004): Solar Energy security. REFocus Magazine, July/August-2004, pp.24-29. Perez R., and T. Hoff, (2004): Field Validation of the Clean Power Estimator’s Obstruction Analysis Algorithm. Proc. 19th European photovoltaic solar Energy Conference and Exhibition, Paris, France.

2003

Letendre, S., R. Perez and C. Herig, (2003): Solar and power markets: peak power prices and PV availability for the summer of 2002. Proc. ASES Annual Meeting, Austin, TX.

Perez R., L. Burtis, T. Hoff, S. Swanson and C. Herig, (2003): Quantifying residential PV economics --- payback vs. cash flow determination of fair energy value. Proc. ASES Annual Meeting, Austin, TX.

Hoff T., B. Norris and R. Perez, (2003): Clean Power Estimator Modifications to Include BIPV, Cool Roofs and Radiant Barriers – Analytical Methods. Report to The California Energy Commission – PIER Program.

Perez R., P. Ineichen, M. Kmiecik, K. Moore, R. George and D. Renne, (2003): Producing satellite-derived irradiances in complex arid terrain. Proc. ASES Annual Meeting, Austin, TX. And solar Energy (Special issue: The American Solar Energy Society's Solar 2003 Special Issue - Edited by J. Reynolds, R. Perez and D. Renné)

Christoph Schillings, Hans-Georg Beyer, Sergio Colle, Hermann Mannstein, Richard Meyer, Enio B. Pereira, Richard Perez and Dave Renné, (2003): Data of Meteosat at 0° and at 63°-East for high-resolution solar energy resource assessment (SWERA) funded by UNEP/GEF. Proc. EUMETSAT Conference, Weimar (Germany)

Perez, R., T. Hoff, C. Herig, J. Shah, (2003) Maximizing PV Peak Shaving With Solar Load Control -- Validation of a Web-Based Economic Evaluation Tool. Solar Energy 74 409-415 [2002 Proc. ASES Annual Meeting, Reno, NV]

Richard Perez, Pierre Ineichen, Kathleen Moore and Marek Kmiecik, (2003): Modeling and Application of Satellite-based Solar Radiation Data. First International Expert Conference on Measurement and modeling of solar radiation - Challenges for the 21st Century sept 15-16 Napier University, Edinburgh, Scotland

Uetani Y., S. Aydinli, A. Joukoff, J. Kendrick, R. Kittler, Y. Koga, K. Matsuura, T. Nagata, H. Nakamura, M. Oki, R. Perez, P. Tregenza, and P. Valko, (2003): Spatial Distribution of Daylight – CIE Standard General Sky. CIE Standard S 011/E:2003, International Illumination Commission, Vienna, Austria

Pereira E., F. Martins, S. Abreu, H.G. Beyer, S. Colle, R. Perez and D. Heinemann, (2003): Cross validation of satellite radiation transfer models during SWERA project in Brazil. Proc. ISES World Congress, Göteberg, Sweden.

Herig, C., S. Gouchoe, R. Perez and T. Hoff, (2003): PV Value in Commercial Buildings – Mapping the Breakeven Turnkey Value of Commercial PV Systems in the US. Proc. ASES Annual Meeting, Austin, TX.

Christoph Schillings, Hans-Georg Beyer, Sergio Colle, Hermann Mannstein, Richard Meyer, Enio B. Pereira, Richard Perez and Dave Renné, (2003): Data of Meteosat at 0° and at 63°-East for high-resolution solar energy resource assessment (SWERA) funded by UNEP/GEF, 2003 Eumetsat Conference, Weimar (Germany)

Perez, R., (2003): Production of high Resolution Irradiance Data for Central America and Cuba. Report prepared UNEP-SWERA. UNEP DTIE, Paris, France.

Perez, R., T. Hoff and R. Reed (2003): Validation of a simplified PV simulation engine. Proc. ASES Conference Austin, TX , and Solar Energy (Special issue: The American Solar Energy Society's Solar 2003 Special Issue - Edited by J. Reynolds, R. Perez and D. Renné)

2002

Perez R., J. Bonaventura-Sparagna, M. Kmiecik, R. George and D. Renne, (2002): Indications Of Biases In Reporting Cloud Cover At Major Airports, Proc.; 82nd AMS Annual Meeting – 6th Symposium on Integrated Observing Systems, Orlando, FLA.

Perez R., (2002): Time Specific Irradiances Derived from Geostationary Satellite Images. Journal of Solar Energy Engineering, February 2002 issue.

Ineichen P. and R. Perez (2002): A new airmass independent formulation for the Linke turbidity coefficient. Solar Energy 73, 151-157

Perez R., P. Ineichen, K. Moore, M. Kmiecik, C. Chain, R. George and F. Vignola, (2002): A New Operational Satellite-to-Irradiance Model. Solar Energy 73, 5, pp. 307-317.

Perez, R., T. Hoff, C. Herig, J. Shah, (2002) Maximizing PV Peak Shaving With Solar Load Control -- Validation of a Web-Based Economic Evaluation Tool. Proc. ASES Annual Meeting, Reno, NV

Herig, C. S. Gouchoe, R. Haynes, R. perez and T. Hoff, (2002): Customer-Sited Photovoltaics: State Market Analysis. Proc. ASES Annual Meeting, Reno, NV

Letendre, S., R. Perez and C. Herig, (2002): Battery-Powered, Electric-Drive Vehicles Providing Buffer Storage For PV Capacity Value. Proc. ASES Annual Meeting, Reno, NV

Schillings, C., E. B. Pereira, R. Perez, R. Meyer, F. Trieb and D. Renné, (2002): High Resolution Solar Energy Resource Assessment within the UNEP-Project SWERA. Proc. World Renewable Energy Conference, Cologne, Germany

Perez, R., C. Herig, R. Mac Dougall, and B. Vincent, (2002) Utility-Scale Solar Load Control, Proc. UPEX 03’, Austin, TX. Ed. Solar Electric Power Association, Washington, DC.

2001

Perez, R., R. Aguiar, M. Collares-Pereira, D. Dumortier, V. Estrada-Cajigal, C. Gueymard, P. Ineichen, P. Littlefair, H. Lund, J. Michalsky, J. A. Olseth, D. Renné, M. Rymes, A. Skartveit, F. Vignola, A. Zelenka, (2001): Solar Resource Assessment – A Review. Solar Energy-The State of the Art, Chapter 10 (pp. 497- 575) James & James, London

Perez, R. M. Kmiecik, D. Renne and C. Herig, (2001): Remote Monitoring of PV Performance Using Geostationary Satellites, Solar Energy 71, 4, 255-261

Perez R., A., A. Zelenka, M. Kmiecik, R. George and D. Renné, (2001): Determination of the Effective Accuracy of Satellite-Derived Global, Direct and Diffuse irradiance in the Central United States. Proc. ASES Annual Meeting, Forum 2001, Washington, DC.

Letendre S., R. Perez and C. Herig, (2001): An assessment of photovoltaic energy availability during periods of peak power prices. Proc. ASES Annual Meeting, Forum 2001, Washington, DC.

Perez, R., S. Letendre and C. Herig, (2001): PV and grid reliability: availability of PV power during capacity shortfalls. Proc. ASES Annual Meeting, Forum 2001, Washington, DC.

Perez, R, T. Hoff and G. Ball, (2001): Using Product Portfolios to Increase the Value of Customer-Sited PV. Proc. Solar Electric Power Association Meeting, UPEX’01, Sacramento, CA

Perez R., J. Bonaventura-Sparagna ,M. Kmiecik, R. George and D. Renne, (2001): Cloud Cover Reporting Bias at Major Airports. Proc. ASES Annual Meeting, Forum 2001, Washington, DC.

2000

Perez R., (2000): Drivers for Distributed Generation. Proc. Building Energy 2000 NESEA Conference, Yale University, New Haven, CT

Perez, R., J. Schlemmer, B. Bailey and K. Elsholtz, (2000): The Solar Load Controller -- End-use maximization of PV’s peak shaving capability. ASES-2000 Conference, Madison, WI

Ineichen, P., R. Perez, M. Kmiecik and D. Renne, (2000), Modeling Direct Irradiance from GOES Visible Channel Using Generalized Cloud Indices. Proc. 80th AMS Annual Meeting, Long Beach, CA

Perez, R., M. Kmiecik, D. Renne and C. Herig, (2000): Remote Monitoring of PV Performance Using Geostationary Satellites, Proc. ASES-2000 Conference, Madison, WI

Lampi M. and R. Perez, (2000): Assigning a capacity value to distributed renewable resources in restructured electric markets – the case of New York State, ASES-2000 Conference, Madison, WI

Perez, R., M. Kmiecik, C. Herig and D. Renne, (2000): Monitoring PV performance using geostationary satellites, Proc. 17th European PV Conference, Glasgow, Scotland

Renné, D., R. Perez, A. Zelenka, C. Whitlock and R. DiPasquale, (2000): Use of Weather and Climate Research Satellites for Estimating Solar Resources. Advances In Solar Energy Vol. 13, Chapter 5, pp. 171- 240. Goswami and Böer Editors, ASES, Boulder, CO.

Herig, C., R. Perez and S. Letendre, (2000): Concerns over grid reliability – New opportunities for PV. Proc. UPEX 2000, Utility Photovoltaic Working Group Meeting, Baltimore, MD

Perez, R., S. Letendre and C. Herig, (2000): Solar Electric Systems Can help During Power Outages. http://lunch.asrc.cestm.albany.edu/~perez/outages-99/PV.htm

Perez, R., R. Aguiar, M. Collares-Pereira, D. Dumortier, V. Estrada-Cajigal, C. Gueymard, P. Ineichen, P. Littlefair, H. Lund, J. Michalsky, J. A. Olseth, D. Renné, M. Rymes, A. Skartveit, F. Vignola, A. Zelenka, (2001): Solar Resource Assessment – A Review. Solar Energy-The State of the Art, Chapter 10 (pp. 497- 575) James & James, London

Perez, R. (2000): A Time Series Generator. Technical Status Report No.3, NREL subcontract AXE-0- 30070-01, NREL Golden, CO.

1999

Peterson, A., R. Perez, B. Bailey and K. Elsholz, (1999): Operational Experience of a Residential Hybrid PV System. Solar Energy, 65, 227-235

Ineichen P., R. Perez, and D. Renne, (1999): Generalized Cloud Indices for the Production of Solar Irradiance and Daylight Illuminance Data from Geostationary Satellites. Proc. Eumetsat Conference, Copenhagen, Denmark.

Ineichen, P. and R. Perez, (1999): Derivation of Cloud Index from Geostationary Satellites and Application to the Production of Solar Irradiance and Daylight Illuminance Data Theoretical and Applied Climatology Vol 64, 119-130.

Zelenka, A., Perez R, Seals R. and Renné D., (1999): Effective Accuracy of Satellite-derived irradiance, Theoretical and Applied Climatology, 62, 199-207

Perez, R. C. Herig, H. Wenger, K. Elsholz and B. Bailey, (1999): Maximizing the Value of customer-sited commercial PV system, Proc. UPEX 99, Tucson, AZ (Utility Photovoltaic Group, Washington, DC)

Perez, R., M. Kmiecik, C. Herig and H. Wenger, (1999): Mapping the Value of Commercial PV Applications in the US Accounting for Externalities. Proc. ASES Annual Meeting, Portland ME.

Perez R., B. Bailey, K. Elsholz and A. Peterson, (1999): Energy Flow and Reliability of a Residential PV System, Proc. ASES Annual Meeting, Portland ME.

Perez R., H. Wenger, C. Herig and M. Kmiecik, (1999): Photovoltaic Market Valuation and Load Matching, NCPV FY-1998 Annual report, NREL/BK-210-25626 pp.437-440

Perez R.. (1999), Jul 6th, 1999 Heat Wave, Peak Demand Records & Outages in New York City...PV Would Have Worked! Custom study posted at: http://lunch.asrc.cestm.albany.edu/~perez/

Perez R., and H. Wenger, (1999) Final Report on Photovoltaic Valuation, submitted to NREL (contracts No. XAD-8-17671-01 and XAX-6-16817-01), 41 pp., NREL, Golden, CO

Perez, R., C. Herig, D. Renne and M. Kmiecik, (2000), Monitoring PV Performance from US Geostationary Satellites, Proc. 16th European PV Conference, Glasgow, Scotland

1998

Perez R., Wenger H., Herig C., (1998): Valuation of demand-side commercial photovoltaic systems in the United States. Proc. ASES Annual Conference, Albuquerque, NM

Perez, R. and R. Seals, (1998): Photovoltaic Effective Capacity. NREL, final report: XR-1-11168-1. National Renewable Energy Laboratory, Golden, CO.

Zelenka, A., Perez R, Seals R. and Renné D., (1998): Cokriging Surface network and Satellite-derived Irradiances: an Assessment of the Satellite-to-Irradiance Conversion Model Accuracy. Proc. Conference on the Fusion of Earth Data, Sophia Antipolis, France

Zelenka A., Perez R., Seals R., and Renné D., Effective accuracy of models converting satellite radiances to hourly surface insolation. 9th Conf. on Satellite Meteorol. and Oceanography, Amer. Meteor. Soc., Paris, 25th-29th May 1998, pp. 710-713, (1998)

Perez R., Wenger H., Herig C., (1998): Geographical Distribution of the Value of Demand-Side Commercial PV Systems in the United States. Plenary article, 2nd World PV Conference, Vienna Austria

Perez, R., (1998): Photovoltaic Availability in the Wake of the January 1998 Ice Storm. Proc. Renew 98, NESEA, Greenfield, Mass.

Kittler, R., S. Darula and R. Perez, (1998): A set of Standard Skies Characterizing Daylight Conditions for Computer and Energy Conscious Design. Final Report, American-Slovak Grant Project US-SK 92-052, Report Available from Slovak Academy of Science, Bratislava, SK.

Herig, C. R. Perez, H. Wenger (1998): Commercial Buildings and PV, a Natural Match. NREL Brochure DOE/GO-1998 NREL, Golden, CO http://www.nrel.gov/ncpv/pdfs/pv_com_bldgs.pdf

Richard Perez and Robert Seals, (1998): Solar Resource utility Load matching Update. NREL PV Program FY 1996 Annual Report, NREL, Golden Colorado.

Richard Perez and Robert Seals, (1998): Production of Site/Time-Specific Irradiances from Satellite and Ground Data. NYSERDA Report 98-3, NYSERDA, Albany, NY (includes peer-reviewed reprints).

1997

Richard Perez and Robert Seals, (1997): Solar Resource utility Load matching Update. NREL PV Program FY 1996 Annual Report, pp. 455-458, NREL/BK-210-21966, NREL, Golden Colorado.

R. Perez, R. Seals, A. Zelenka and David Renné, (1997): The strengths of Satellite-Based Solar resource Assessment. Proc. ASES Annual Conference, Washington, DC.

R. Perez, R. Seals, H. Wenger, T. Hoff and C. Herig, (1997): PV as a Long-Term Solution to Power Outages. Case Study: The Great 1996 WSCC Power Outage. Proc. ASES Annual Conference, Washington, DC.

Richard Perez and Robert Seals (1997): Estimation of Photovoltaic Production in Minnesota Power’s Service Territory. Final Report to Minnesota Power Company (12 pp.)

Perez, R., R. Seals and C. Herig, (1997): Determination of the End-Use Effective Capacity of Photovoltaics. Proc. 14th European PV Conference, Barcelona, Spain.

R. Perez, R. Seals and A. Zelenka, (1997): Comparing Satellite Remote Sensing and Ground Network Measurements for the Production of Site/Time Specific Irradiance Data. Solar Energy 60, 2, 89-96.

R. Kittler, R. Perez and S. Darula, (1997): Clear Sky Luminance Patterns: Analysis, Comparison and Modeling. Architectural Science Review, 40, 89-96

R. Perez, R. Seals and C. Herig, (1998): PV Can Add Capacity to the Grid. NREL Brochure DOE/GO- 10096-262, NREL, Golden, CO http://www.nrel.gov/ncpv/documents/pv_util.html

S. Darula, R. Kittler and R. Perez, (1997): Mozny Zdroj Oslnenia Zraku: Novy Algoritmus Vypoctu Jasu na oblohe (Possible Sources of Glare: a New Algorithms for Sky Luminance Calculations). Proc. 8th International Conference on Indoor Climate of Buildings, Bratislava, Slovakia.

R. Perez, (1997): Grid-Connected Photovoltaic Power: Storage Requirements to Insure 100% Peak Shaving Reliability. Proc. Energy Storage Association Annual meeting, Washington, DC

R. Perez and R. Seals, (1997): Power for the People – Geographical Distribution of Photovoltaics Effective Capacity in the US. (Cover) Northeast Sun 15, 2.

S. Darula, R. Kittler and R. Perez, (1997): Analysis and Modeling of Overcast Skies (in Russian). Light and Engineering Vol. 3, pp.4-8

R. Perez and R. Seals, (1997): Production of Site-Time Specific Irradiances from Satellite and Ground Data. Final report to NYSERDA and NREL. NYSERDA Report No98-3 35 pp., NYSERDA, Albany, NY / NREL Golden, CO.

1996

Joseph Bryan and Richard Perez, (1996): Estimating Market Potential for Reducing Customer Peak Loads through Photovoltaics. Proc. ASES-96 Annual Meeting, Asheville, NC, 6 pp.

Richard Perez and Robert Seals (1996): Photovoltaics Effective Capacity. Final report to NREL, 35 pp. (to be published as NREL TR) NREL, Golden, CO.

Richard Perez, Robert Seals and Antoine Zelenka, (1996): Production of Site/Time Hourly Irradiances – satellite remote Sensing vs. Network Interpolation. Proc. ASES-96 Annual Meeting, Asheville, NC,

Richard Perez, J.M. Germa and B. Bailey, (1996): Investigating Wind Power’s Effective Capacity: A case Study in the Caribbean Island of La Martinique. Proc. AWEA Annual Meeting, Boulder, CO.

Howard Wenger, Christy Herig, Roger Taylor, Patrina Eiffert and Richard Perez, (1996): Niche Markets for Grid-Connected Photovoltaics. Proc. IEEE Photovoltaic Specialists Conf., Washington, DC.

Richard Perez, (1996): On Solar Radiation Resource Assessment. To Be Published in American Solar Energy Society’s White Paper series. ASES, Boulder, CO.

Richard Kittler, Richard Perez and Stan Darula, (1996): Sky Classification Respecting Energy-Efficient Lighting, Glare and Control Needs. Proc. IES Annual Meeting, Cleveland, OH (to be published in The Journal of the IES)

James Augustyn, Robert Nelson, Richard Perez, Robert Seals and James Barnaby, (1996): WYEC2 User’s Manual and Toolkit. Published by the ASHRAE (TC4.2, 728-TRP). ASHRAE, Atlanta, GA.

Richard Perez and Robert Seals, (1996): Solar resource Load Matching Assessment. Annual Contractor’s Report to NREL. NREL, Golden, CO.

Research and findings featured in an article prepared by Ira Krepchin, Editor, under the name: “Study Shows Solar PV Can Be Effective in Central and Eastern US”. Technologies for Energy Management Vol.4-3, pp. 6-7.

Richard Perez and Robert Seals, (1996): Producing Irradiances from Geostationary Satellites. Final Report to NREL (No. ACI-5-11191-01). NREL, Golden, CO.

Richard Perez and Robert Seals (1996): Mapping Photovoltaics’ Effective Capacity. Proc, of Annual Utility PV Experience, Lakewood, Co. (Published by UPVG, Washington, DC)

Richard Perez and Eugene Maxwell – Editors, (1996): Proceedings of Satellites for Solar Energy Resource Information Workshop (Washington, DC). 2 Volumes, 135 pp.

1995

R. Perez -- Editor, H. Beyer, A. Bittar, G. Czeplak, L. Dahlgren J.J. Delaunay, D. Dumortier, M. Fontoynont, P. Ineichen, J. Love, B. McArthur, J.A. Olseth, M. Rommel and A. Skartveit (1995): Broad- Band Visible Radiation Data Acquisition and Analysis, IEA Solar heating and Cooling Program Task 17-E Final Report. 3 Volumes 550 pp.

R. Perez, R. Seals et al. (1995): Mapping of Photovoltaic’s Effective capacity in the United States. Proc. 13th. European PV Conference, Nice, France. 6 pp.

R. Perez, R. Seals et al. (1995): Geographical Distribution of PV Effective capacity in the US. Proc. ASES- 95 Annual Meeting, Minneapolis, MN. 6 pp..

Perez, R. Seals, J. Anderson and D. Menicucci (1995): Calculating Solar Radiation Received by Tubular Solar Energy Collectors. ASME-95 Annual Meeting, ASME Transactions, 6 pp.

Perez, R. Seals, J. Anderson and D. Menicucci (1995): Solar Radiation Received by Tubular Collectors. Journal of Solar Energy Engineering Vol. 117, pp. 341-344

R. Perez (1995): Solar Radiation Resource Assessment and Modeling Logistics for Continent-Wide Coverage. Keynote Paper at the 5th Arabic International Solar Energy Conference. Published in Applied Energy Journal, Vol. 52, pp. 375-381

Research and findings featured in an article prepared by Paula Pitchford under the name: “Study expands PV’s Horizons for US Utilities”. Solar Industry Journal Vol. 6-3, pp. 35-36.

1994

R. Perez, P. Tregenza and J. Michalsky, (1994): Guide to Recommended Practice of Daylight Measurement, CIE Report 108-1194, ISBN 3 900 734 50, 52 pp.

R. Perez, R. Seals and R. Stewart, (1994): Matching Utility Peak Loads with Photovoltaics. Proc. RENEW- 94, NESEA’s Annual Meeting, 6 pp.

R. Perez, R. Seals, R. Stewart, A. Zelenka and V. Estrada-Cajigal (1994): Using Satellite-Derived Insolation Data for the Site/Time Specific Simulation of Solar Energy Systems Solar Energy Vol. 53, 6; 7 pp.

R. Perez and R. Seals, (1994): Evaluation of Daylight Availability Conversion Models at the Albany IDMP Station. Proc. ASES Annual Meeting, San Jose, CA, 1994, 6 pp.

R. Perez, R. Seals, R. Stewart, (1994): Solar Resource -- Utility Load-Matching Assessment. NREL Rept. No. TP-411-6292, 48 pp.

E.W. Hammond, D. Renné and R. Perez, (1994): Availability of Satellite-Derived Data for Solar Resource Assessment. Proc. ASES Annual Meeting, San Jose, CA, 1994, 6 pp.

R. Perez, M. Rymes and D. Renné, (1994): Assessment of Photovoltaic Load Matching Potential -- Impact of Long term Insolation Variations. Proc. ASES Annual Meeting, San Jose, CA, 1994, 6 pp.

R. Perez, J. Doty, B. Bailey and J. Healey, (1994): Providing Firm Peak Load Reduction with PV. Proc. ASES Annual Meeting, San Jose, CA, 6 pp.

H.G. Beyer, D. Heinemann, R. Perez, C. Reise and R. Seals, (1994): Satellite-Derived Radiation Data for PV System Studies -- an Appraisal. Proc. 12th European Photovoltaic Solar Energy Conference, Amsterdam, The Netherlands,

B. Canac, B. Anderson and R. Perez, (1994): Economic Assessment of Daylight Availability Changes caused by New Constructions. Proc. ASES Annual Meeting, San Jose, CA, 6 pp.

R. Perez, (1994): Finding and Quantifying High Value Areas -- Integration of Satellite Data, Proc. PVUSA Workshop, Grid-Support Photovoltaics, San Francisco, CA

P. Ineichen, P. B. Molineaux and R. Perez, (1994): Sky Luminance Data Validation; Comparison of 7 models with 4 Data Banks. Solar Energy, 52, 4 pp. 337-34

R. Perez, R., J. Doty and B. Bailey, (1994): Experimental Evaluation of a Photovoltaic Simulation Program. Solar Energy 52, 4, pp. 359-365

Michalsky, J., R. Perez, R. Seals and P. Ineichen, (1994): Degradation of Solar Concentrator Performance in the Aftermath of Mt. Pinatubo. Solar Energy 52, 2, pp. 205-213

1993

Perez, R., R. Seals and J. Michalsky, (1993): An All-Weather Model for Sky Luminance Distribution -- A Preliminary Configuration and Validation. Solar Energy 50, 3, pp. 235-245.

Perez, R., R. Seals, J. Michalsky and P. Ineichen, (1993): Geostatistical Properties and Modeling of Random Cloud Patterns for Real Skies. Solar Energy 51, 1, pp. 7-18.

Perez, R., R. Seals and J. Michalsky, (1993): Modeling Skylight Angular Distribution from Routine Irradiance Measurements. Journal of the IES, 22, 1, pp. 10-17.

Perez, R., R. Seals and J. Michalsky, (1993): Erratum to All-Weather Model for Sky Luminance Distribution Solar Energy 51, 5, pp. 423.

Perez, R., R. Seals and R. Stewart, (1993): Assessing the Load Matching Capability of Photovoltaics for US Utilities Based Upon Satellite-Derived Insolation Data, IEEE Transactions, pp. 1146-1149 (23d. PV Specialists, Louisville, KY).

Michalsky, J., R. Perez, R. Seals, P. Ineichen and B. Molineaux, (1993): Evaluation and Forecast of the Impact of Mt. Pinatubo’s Eruption on the Performance of Solar Concentrators. Proc., ISES World Congress, Budapest, Hungary.

Perez, R., R. Seals, R. Stewart, A. Zelenka and V. Estrada-Cajigal, (1993): Using Satellite-derived Insolation Data to Evaluate the Utility Load Matching Capability of Photovoltaics. Proc., ISES World Congress, Budapest, Hungary.

Perez, R., R. Seals and R. Stewart, (1993): Solar Resource - Utility Load Matching Assessment. Phase One Final Report to the Natl. Renewable Energy Lab. (24 pp.). NREL/TP-411-6292, NREL, Golden, CO Perez, R., R. Seals and R. Stewart, (1993): Long Term Variability of Solar Radiation in the US -- A Preliminary Utilization of the NREL National Solar Radiation Data Base.

Zelenka, A., G. Czeplak, V. D’Agostino, W. Josefson, E. Maxwell and R. Perez, (1993): Techniques for Supplementing Solar Radiation Network Data. Final Report to the International Energy Agency (Solar Heating and Cooling Program Task 9-D), 283 pp.

1992

Perez, R., J. Michalsky and R. Seals, (1992): Modeling Luminance Distribution for Real Skies; evaluation of existing algorithms. Illum. Eng. Soc. Journal, Vol. 21, 2, pp. 84-92.

Perez, R., P. Ineichen, E. Maxwell, R. Seals and A. Zelenka, (1992): Dynamic Global-to-Direct Irradiance Conversion Models. ASHRAE Transactions-Research Series, pp. 354-369.

Perez, R., R. Seals and J. Michalsky, (1992): Modeling Skylight Angular Distribution from Routine Irradiance Measurements. Proc. IES Annual Conference, San Diego, CA.

Perez, R., R. Seals and R. Stewart, (1992): Evaluation of Satellite-Based Solar Resource Assessment for Investigating Utility Load Matching, 11th PV AR&D Review Meeting, Denver, CO.

Wenger, H., T. Hoff and R. Perez (1992): Photovoltaics as a Demand Side Management Option: Benefits of a Utility-Customer Partnership. Proc. of World Energy Engineering Congress, Atlanta, GA (10/92).

Zelenka A., G. Czeplak, V. D'Agostino, W. Josefsson, E. Maxwell and R. Perez (1992): Techniques for Supplementing Solar Radiation Network Data, Final Report of International Energy Agency Solar Heating and Cooling Program, Task 9 subtask 9D. Report IEA-SHCP-9D-1, available from Swiss Meteorological Institute, Zurich, Switzerland.

1991

Perez, R., P. Ineichen, E. Maxwell, R. Seals and A. Zelenka, (1991): Dynamic Models for Hourly Global- to-Direct Irradiance Conversion. Proc. Int. Solar Energy Soc. World Congress Honors Paper, Denver, CO. 6 pp.

Tarana, P., R. Stewart and R. Perez, (1991): The Global Energy Legacy. Proc. Int. Solar Energy Soc. World Congress, Denver, CO. 6 pp.

Bailey, B., J. Doty, R. Perez, R. Stewart and W. Huse, (1991): Performance of a Photovoltaic Demand- Side Management System. Proc. Int. Solar Energy Soc. World Congress, Denver, CO. 6 pp.

Perez, R., R. Seals, R. Stewart, M. Kapner and G. Stillman, (1991): Meeting Utility Load Requirements with Photovoltaics--Resource Assessment Logistics. Proc. Int. Solar Energy Soc. World Congress, Denver, CO. 6 pp.

Michalsky, J., R. Perez and R. Seals, (1991): Evaluation of Algorithms for Sky Luminance Distribution -- Prospects for Performance Improvements. Proc. Int. Solar Energy Soc. World Congress, Denver, CO. 6 pp.

Perez, R. and J. Michalsky, (1991): Characterization of a Direct UV Irradiance Sensor for the Evaluation of Solar Detoxification Feasibility. Report to Sandia National Labs. #788804. SNLA, Albuquerque, NM.

Bailey, B., R. Stewart, J. Doty, R. Perez and W. Huse, (1991): Photovoltaic Demand-Offset System. Soltech 91, San Francisco, CA.

Bailey, B., R. Stewart, J. Doty, R. Perez and W. Huse, (1991): Utility Investigation of a Grid-Connected PV System as a Peak Load Reduction Option. Proc. of 26th Intersociety Energy Conversion Engineering Conference.

Fontoynont, M., P. Barral and R. Perez, (1991): Indoor Daylighting Frequencies Computed as a Function of Outdoor Solar Radiation Data. Proc. of 22nd International Illumination Commission (CIE) Conference, Melbourne, Australia.

Michalsky, J.J., R. Perez, L. Harrison and B.A. LeBaron, (1991): Spectral and Temperature Correction of Silicon Photovoltaic Solar Radiation Detectors. Solar Energy 47, pp. 299-306.

Vazquez, M.V. Ruiz and R. Perez, (1991): The roles of scattering, absorption and air mass on the diffuse- to-global correlations. Solar Energy 47, pp. 181-188.

Perez, R. and M. Fontoynont, (1991): Future Directions in Daylighting Research. Australia-New Zealand Architectural Science Assoc. Meeting, July 17-19, Roseworthy, South Australia.

1990

Perez, R., R. Seals, R. Stewart, J. Michalsky and M. Fontoynont, (1990): A Daylight Availability Data Base for New York State. Proc. 15th ASES Annual Passive Conference. Paper received the conference’s Best Paper Award.

Perez, R., P. Ineichen, R. Seals and A. Zelenka, (1990): Making Full Use of the Clearness Index for Parameterizing Hourly Insolation Conditions. Solar Energy 45, pp. 111-114 and Proc. of ASES Annual Meeting, Boulder, CO.

Perez, R., R. Seals, A. Zelenka and P. Ineichen, (1990): Climatic Evaluation of Models that Predict Hourly Direct Irradiance from Hourly Global Irradiance: Prospects for Performance Improvements. Solar Energy 44, pp. 99-108.

Ineichen, P., O. Guisan and R. Perez, (1990): Ground reflected Radiation and Albedo. Solar Energy 44, pp. 207-214.

LeBaron, B.A., J.J. Michalsky and R. Perez, (1990): A Simple Procedure for Correcting Shadowband Data for All Sky Conditions. Solar Energy 44, pp. 249-256.

Perez, R., P. Ineichen, R. Seals, J. Michalsky and R. Stewart, (1990): Modeling Daylight Availability and Irradiance Components from Direct and Global Irradiance. Solar Energy Vol. 44, pp. 271-289. LÖF- DUFFIE BEST PAPER AWARD -1993

Perez, R., R. Seals and R. Stewart, (1990): An Evaluation of Existing Solar Resource Assessment Capabilities from Measurement Networks and Geostationary Satellites for the Determination of Photovoltaic Interaction with Electric Utilities. Report to the New York Power Authority, 98 pp.

Bailey, B., R. Perez, J. Doty, K. Elsholz, R. Stewart and W. Huse, (1990): Early Experiences of the 15 kW NMPC Demand-Side Management Photovoltaic Project. Proc. of PV Module Reliability Workshop, SERI, Lakewood, CO. To be published in Solar Cells.

Fontoynont, M. and R. Perez, (1990): Space-Time Analysis of Daylighting Systems. Proc. of #d International Daylighting Conference, Moscow, USSR.

1989

LeBaron, B.A., J.J. Michalsky and R. Perez, (1989). An Anisotropic tropic Shadowband Correction for Parameterized Skies and Geometric metric Conditions. Proc. of ASES Annual Meeting, pp. 433-438, Denver, CO.

Michalsky, J.J., B.A. LeBaron and R. Perez, (1989): Spectral and Temperature Correction of Silicon- Photodiode Solar Radiation Detectors. Proc. of ASES Annual Meeting, pp. 439-444, Denver, CO.

Perez, R., W. Berkheiser, III, M. Kapner and G. Stillman, (1989): Photovoltaic Load Matching Potential for Metropolitan Utilities and Large Commercial Users in the Northeastern United States, 9 pp. Proc. of 9th European Photovoltaic Conference, Freiburg, Federal Republic of Germany.

Perez, R., W. Berkheiser, III and R. Stewart, (1989): Analysis of Lincoln Center Data for Photovoltaic Load Matching Evaluation. Report to the New York Power Authority (40 pp.).

Ineichen, P., O. Guisan and R. Perez, (1989): Analysis of the Variation of the Albedo Coefficient and Evaluation of the Solar Radiation Reflected by the Ground. Proc. of ISES biennial Meeting, Kobe, Japan.

Perez, R. and R. Seals, (1989): The New York State Daylight Availability Data Base. Final Report to NYSERDA (80 pp.).

Michalsky, J.J., R. Perez, L. Harrison and B.A. LeBaron, (1989): Beyond the IDMY, A Network Instrument for Low-Cost Data Acquisition. Proc. of CIE-WMO Daylight and Solar Radiation Measurement Symposium, Berlin, Germany.

Perez, R., (1989): On Solar Radiation Resource Assessment, (1989): The Solar Spectrum, Newsletter of the American Solar Energy Society’s Resource Assessment Division. ASES, Boulder, CO.

1988

Perez, R., R. Stewart, R. Seals and T. Guertin, (1988): The Development and Verification of the Perez Diffuse Radiation Model. Sandia National Labs Report #SAND88-7030, 150 pp., SNLA, Albuquerque, NM.

Michalsky, J.J. and R. Perez, (1988): Guide to Recommended Practice of Daylight Measurement; Part B: Research Class Stations, 5 pp., prepared on behalf of Commission Internationale de l’Eclairage (CIE), (ASRC Pub #1271).

Perez, R., J. Michalsky and R. Seals, (1988): Guide to Recommended Practice of Daylight Measurement; Part C: Data Quality Control, Processing and Dissemination, 30 pp., prepared on behalf of Commission Internationale de l’Eclairage (CIE).

Michalsky, J.J., R. Perez, R. Stewart, B.A. LeBaron and L. Harrison, (1988): Design and Development of a New York State Solar Radiation/Daylight Network. Solar Energy 41, 6, pp. 557-582.

Perez, R. and R. Stewart, (1988): Non-Remote Non-Grid Interactive Systems: An Opportunity for Photovoltaic Development in the Northeast, 17 pp., Symposium paper, Proc. of ASES Annual Meeting, Cambridge, MA.

Doty, J.R., W. Berkheiser and R. Perez, (1988): Maximum Power Tracking for Non-Stand Alone, Non- Grid Interactive Photovoltaic System. Proc. of ASES Annual Meeting, 332-336, Cambridge, MA.

Perez, R., R. Seals, J. Michalsky, W. Berkheiser III, R. Stewart, K. Webster, (1988): Modeling Daylight Availability Resource Assessment. Final Report to the New York State Energy Research and Development Authority, 85 pp., NYSERDA, Albany, NY.

Wright, J., R. Perez and J. Michalsky, (1989): Luminous Efficacy of Direct Irradiance: Variations with Insolation Conditions. Solar Energy 42, 5, pp. 387-394.

Bailey, B., R. Perez and J.M. Germa, (1988): The Economic Feasibility of Wind Energy Generation in the Northeastern U.S., 6 pp., Proc. of Windpower 88, AWEA National Conference, Honolulu, Hawaii.

1987

Perez, R., K. Webster, R. Seals, R. Stewart and J. Barron, 1987. Variations of the Luminous Efficacy of Global and Diffuse Radiation and Zenith Luminance with Weather Conditions - Description of a Potential Method to Generate Key Daylight Availability Data from Existing Solar Radiation Data Bases. Solar Energy, 38, 1.

Perez, R., R. Seals, P. Ineichen, R. Stewart, D. Menicucci, 1987. A New Simplified Version of the Perez Diffuse Irradiance Model for Tilted Surfaces. Description Performance Validation. Solar Energy, 39, pp. 221-232. Received Löf/Duffie ISES Best Paper Award in 1989.

Ineichen, P., R. Perez, and R. Seals, 1987. The Importance of Correct Albedo Determination for Adequately Modeling Energy Received by Tilted Surfaces. Solar Energy, 39, pp. 301-305.

Zelenka, A. and R. Perez, 1986. Predicting Direct Solar Irradiance from Satellite - Estimated Global Irradiance and Total Cloud Cover. “Application of Satellite Technology, Annual Progress Report.” World Meteorological Organization, Geneva, Switzerland.

Perez, R., R. Seals and R. Stewart, (Sept. 1987): Modeling Irradiance on Tilted Planes: A Simpler Version of the Perez Model -- U.S.-wide Climatic/Environment Evaluation, 6 pp. Proc. of ISES World Congress, Hamburg, F.R.G.

Perez, R., R. Stewart and J. Barron, (July 1987): An Approach to Developing a Versatile Climatological/Real Time Radiation Data Base. Proc. of ASES Annual Meeting, pp. 412-416, Portland, Oregon.

Perez, R., 1987. Daylight Resource Availability. Phase II Report of Research Contract #724-CON-DCS- 85, 110 pp. New York State Energy Research and Development Authority (NYSERDA), Albany, NY.

Michalsky, J., R. Perez and M. Navvab (1987): Optical Measurement Problems in Daylighting. INVITED PLENARY PAPER. Council for Optical Radiation Measurements Annual Meeting, Gaithersburg, MD.

1986

Perez, R., 1986. Daylight Resource Availability. Phase I Report of research contract #724-CON-DCS-85, 400 pp. New York State Energy Research and Development Authority, (NYSERDA), Albany, NY.

Perez, R. and R. Stewart, 1986. Energy Performance Monitoring and Air Quality Assessment of a Pond Hill Home. Final Report to the Pond Hill Corporation, 120 pp. Rensselaerville Institute, Rensselaerville, NY.

Perez, R., R. Stewart, C. Arbogast, R. Seals and J. Scott, 1986. An Anisotropic Hourly Diffuse Radiation Model for Sloping Surfaces -- Description, Performance Evaluation, Site Dependency Evaluation. Solar Energy, 36, pp. 481-498.

Perez, R., R. Seals and R. Stewart, 1986. On Estimating Beam Irradiance from Vertically Mounted Sensors. Proc. of ASES, pp. 180-183, Boulder, CO. Perez, R. and R. Stewart, 1986. Solar Irradiance Conversion Models. Solar Cells, 18, pp. 213-223.

Perez, R., K. Webster, R. Seals, R. Stewart and J. Barron, 1986. Measurement and Estimation of Illuminance on Vertical Surfaces. Observed Differences with Irradiance. Evaluation of Models. Proc. of Second International Daylighting Conference, ASHRAE-CIE, pp. 77-80, Long Beach, CA.

Perez, R., 1986. Selection of Sites for the Experimental Generation of Perez’s Model Coefficients. Sandia National Labs Internal Report. 15 pp., SNL, Albuquerque, NM.

Perez, R., 1986. Performance Improvement and Structural Simplification of Perez Diffuse Irradiance Model. Sandia National Labs Internal Report. 15 pp., SNL, Albuquerque, NM.

Germa, J.M., R. Perez and B. Bailey, 1986. The Statistical Profile of WECS Built in Europe and North America. Proc. of American Wind Energy Association, pp. 35-41, Boston, MA.

Germa, J.M. and R. Perez, 1986. Statistical Profile of the WECS Market and Economic Viability of Wind Farming in France. Proc. of EWEC 86, 7 pp., European Wind Energy Association, Rome, Italy.

Hay, J., R. Perez and D.C. McKay, 1986. Addendum and Errata to the Paper “Estimating Solar Irradiance on Inclined Surfaces: A Review and Assessment of Methodologies.” International Journal of Solar Energy, 4, pp. 321-324.

1985

Alvarez, S., P. Depecker, F. Allard and R. Perez, 1985. Influence du Modele de Description du Rayonnement Solaire Diffus sur les Resultats de Simulation Numerique de Comportement Thermique de L’Habitat Passif. Rapport INSA, Lyon, France.

Perez, R., R. Stewart and C. Arbogast, 1985. Climatology of an Anisotropic Diffuse Sky Radiation Model for Sloping Surfaces. Proc. of ISES, pp. 1719-1723, Montreal, Canada.

Stewart, R., R. Perez and B. Bailey, 1985. Photovoltaics in the Northeastern United States. Proc. of ISES, pp. 2498-2502, Montreal, Canada.

Perez, R., K. Webster, R. Stewart and J. Barron, 1985. The Luminous Efficacy of Global and Diffuse Irradiance. Variations with Insolation Conditions. Proc. of Solar 85 Daylight Conference, pp. 599-604, ASES, Raleigh, NC.

Perez, R., and R. Stewart, 1985. Data Acquisition, Processing, Formatting Storage and Dissemination Requirements. U.S. Standard Practice for the Measurement and Reporting of Daylight Availability, Chapter VII, pp. 7.1 - 7.38. United States Working Group on Daylight Availability. Florida Solar Energy Center, Florida.

Perez, R., M. Eggers, B. Krakow, O. Lewinter, M. McNamara and D. Stricos, 1985. New York State Informal Photovoltaic Working Group. Subcommittee on Feasibility. Summary of Recommendations, 15 pp. ASRC, Albany, NY.

Stewart, R., D. Spencer and R. Perez, 1985. The Measurement of Solar Radiation. Advances in Solar Energy, Vol. II, pp. 1-49. Boer & Duffie, Plenum, New York.

1983

Perez, R.R., J.T. Scott and R. Stewart, 1983. An anisotropic Model for Diffuse Radiation Incident of Slopes on Different Orientations and Possible Applications to CPCs. Progress in Solar Energy, Vol. 6, pp. 883-888. ASES, Boulder, CO.

Perez, R.R., R. Stewart and J.T. Scott, 1983. A Two-Parameter Description of the Sky Hemisphere. Proc. of AMS-ASES Fifth Conference on Atmospheric Radiation, Baltimore, MD.

Perez, R., J. Scott and R. Stewart, 1983. Establishment and Testing of an Anisotropic Diffuse Radiation Model and Optimization of 2-Dimensional CPCs for Photovoltaic Electricity Production. Ph.D. Dissertation. State University of New York, Albany, NY. Published in 1984 Perez, R., R. Stewart and B. Bailey, 1984. Photovoltaics in New York State: Technology Review, Economic Variability, 25 pp. ASRC/SUNY Report.

Stewart, R. and R. Perez, 1984. Validation of an Anisotropic Model Estimating Insolation on Tilted Surfaces. Proc. of ASES, pp. 639-644, Anaheim, CA.

Perez, R. and R. Stewart, 1984. Real Time Comparison of Models Estimating Irradiation on Sloping Surfaces. Proc. of ASES, pp. 645-650, Anaheim, CA.

Perez, R., M. Dick and D. Landsberg, 1984. Specialized Bin Data for Building Analysis. 140 pp. Report to the United States Department of Commerce NOAA.

Germa, J.M. and R. Perez, 1984. Catalogue of 10 kW and Above Wind Energy Conversion Systems to be found on the North European and American Markets. 150 pp. Proprietary Report prepared for Total Petroleum Company, Latecoere, Aeronautics and Electricite de France.

1982

Perez, R., J. T. Scott and R. Stewart, 1982. The Effective Concentration of Non-Tracking CPC’s Including an Economic Analysis for Photovoltaics. Progress in Solar Energy, Vol. 5, pp. 549-553. ASES, Boulder, CO.

1981

Perez, R., 1981. Comparison of Several Designs for Photovoltaic Solar Collectors Operating in Albany, NY. A Thesis presented at SUNYA for the degree of Master of Science.

1978

Gendrin, R., N. Cornilleau and R. Perez, 1978. Reception of the NKL Transmitter onboard GEOS II. Space Science Reviews, December issue.