Historical Analysis of Investment in Solar Energy Technologies (2000-2007)

Research output: NRELTechnical Report


The solar energy industry experienced unprecedented growth in the eight years from 2000 to 2007, with explosive growth occurring in the latter half of this period. From 2004 to 2007, global private sector investment in solar energy increased by almost twenty-fold, marking a dramatic increase in the short span of four years. This paper examines the timing, magnitude, focus and location of variousforms of investment in the solar energy sector. It analyzes their trends to provide an understanding of the growth of the solar industry during the past eight years and to identify emerging themes in this rapidly evolving industry.
Original languageAmerican English
Number of pages37
StatePublished - 2008

NREL Publication Number

  • NREL/TP-6A2-43602


  • building technologies
  • energy consumption
  • PV
  • residential buildings
  • rooftop PV systems
  • solar
  • solar energy
  • solar industry
  • solar photovoltaics (PV)
  • solar systems


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