The solar power industry grew only 5.2% in 2009 owing to the economy, versus 9.6% in 2008. The residential and utility markets for photovoltaic panels were strong, but the commercial and pool heating equipment markets fell. Worldwide, the U.S. is 4th in solar installations and overall capacity.
Architecture in recent years has been trying to combat the negative effects of construction on the atmosphere by leaning towards using more sustainable building and construction materials. Building high performance houses are one way that architects have been creating new buildings to reduce the energy used which is