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Title: Comparison of Energy Production and Performance from Flat-Plate Photovoltaic Module Technologies Deployed at Fixed Tilt: Preprint

This conference paper describes the performance data for 14 photovoltaic modules deployed at fixed-latitude tilt in the field are presented and compared. Module performance is monitored continuously for optimum power characteristics. Flat-plate module technologies representative of crystalline, amorphous, and polycrystalline silicon, and cadmium telluride and copper indium diselenide, are scrutinized for energy production, effective efficiency and performance ratio-ratio of effective to reference efficiency. Most performance ratios exhibit seasonal fluctuations largely correlated to air or module temperatures, varying between 80% and 100%. These ratios tend toward larger values during winter and vise versa, except for amorphous silicon and cadmium telluride modules. In a-Si cases, the situation appears reversed: better performance ratios are exhibited during late summer. The effective efficiency and average daily and yearly energy production are analyzed and quantified.
Authors:
Publication Date:
OSTI Identifier:
15006974
Report Number(s):
NREL/CP-520-31444
TRN: US200412%%543
DOE Contract Number:
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 May 2002; Related Information: Prepared for the 29th IEEE PV Specialists Conference, 20-24 May
Research Org:
National Renewable Energy Lab., Golden, CO (US)
Sponsoring Org:
US Department of Energy (US)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 42 ENGINEERING; AIR; CADMIUM TELLURIDES; COPPER; EFFICIENCY; FLUCTUATIONS; INDIUM; PERFORMANCE; PRODUCTION; SILICON; SOLAR ENERGY; PV; FLAT-PLATE; MODULES; FIXED-LATITUDE TILT; OPTIMUM POWER CHARACTERISTICS; ENERGY PRODUCTION AND PERFORMANCE; AMORPHOUS SILICON; POLYCRYSTALLINE; CRYSTALLINE; CADMIUM TELLURIDE; COPPER INDIUM DISELENIDE; SOLAR ENERGY - PHOTOVOLTAICS