Grid-connected photovoltaics: tapping the 'early adopter' market

摘要

The U.S.Department of Energy aims to install a million solar roofs by 2010. Who are the "early adopters" that will buy these systems? In 1997 the Community Office for Resource Efficiency, a nonprofit energy office in Aspen, Colorado, sold and installed 5 grid-connected photovoltaic systems. System sizes ranged from 800 watts to 4.5 kilowatts; prices, from