For ten years, the Clean Energy Trends report has been a must-read for investors in renewable energy and cleantech. The new report shows that global annual revenue for solar PV grew from $3 billion in 2001 to $91.6 billion in 2011; wind power from $4.6 billion to $71.5 billion. The new report forecasts that global solar power annual revenues will grow from $91.6 billion in 2011 to $130.5 by 2021; wind power from $71.5 billion to $116.3 in ten years.
The forecasts are likely too low. Consider the growth of these last five years that included a global recession, collapse of project financing for wind and solar, and competitors like Suntech crushing venture-backed Solyndra. In 2006, solar revenues were $15.6 billion; in 2011, $91.6. In 2006, wind was $17.9 billion; in 2011, $71.5. But with this growth, cleantech investors took a roller coaster ride to big losses.