Analyzing Two Federal Building Integrated Photovoltaics Projects Using ENERGY-10 Simulations

Andy Walker, Norm Weaver, Gregory Kiss, Doug Balcomb, Melinda Becker-Humphry

Research output: Contribution to conferencePaperpeer-review


A new version of the ENERGY-10 computer program simulates the performance of photovoltaic systems, in addition to a wide range of opportunities to improve energy efficiency in buildings. This paper describes two test cases in which the beta release of ENERGY-10 version1.4 was used to evaluate energy efficiency and building-integrated photovoltaics (BIPV) for two Federal building projects: a 16,000-ft2 (1,487 m2) office and laboratory building at the Smithsonian Astrophysical Laboratory in Hilo, Hawaii, and housing for visiting scientists [three 1400-ft2 (130 m2) and three 1564-ft2 (145 m2 houses] at the Smithsonian Environmental Research Center in Edgewater, Maryland. The paper describes the capabilities of the software, the method in which ENERGY-10 was used to assist in the design, and a synopsis of the results. The results indicate that ENERGY-10 is an effective tool for evaluating BIPV options very early in the building design process. By simulating both the building electrical load and simultaneous PV performance for each hour of the year, the ENERGY-10 program facilitates a highly accurate, integrated analysis.

Original languageAmerican English
Number of pages7
StatePublished - 2002
EventSolar Engineering 2002 - Reno, NV, United States
Duration: 15 Jun 200220 Jun 2002


ConferenceSolar Engineering 2002
Country/TerritoryUnited States
CityReno, NV

Bibliographical note

For preprint version, including full-text online document, see NREL/CP-710-31310

NREL Publication Number

  • NREL/CP-710-32913


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