Nuon NV

Nuon is one of the largest multi-utility companies in the Netherlands, serving more than 2.5 million residential and business customers with electricity and, in many instances, with gas, water and heat as well. The company is in the forefront in the marketing of green energy and renewable energy generation in the Netherlands and is extending its knowledge and experience in the area of renewable energy internationally. Nuon's activities in the field of renewable energy include wind power, small hydropower, thermal and photovoltaic solar energy, landfill gas, biogas, biomass and ambient heat. ORMAT: ORMAT is the world leader in distributed reliable remote microturbine power units (also known as Closed Cycle Vapor Turbo Generators). ORMAT's operations use locally available heat sources, including geothermal energy (steam and hot water), industrial waste heat, solar energy, biomass, and low grade fuels. Pinnacle West Capital Corp: Based in Phoenix, Ariz., Pinnacle West is the parent company of APS and Pinnacle West Energy. APS is Arizona's largest and longest-serving electric utility, serving more than 857,000 customers, and Pinnacle West Energy is the company's unregulated wholesale generating subsidiary. Among the utilities listed in the S&P 500, Pinnacle West is ranked in the top 10 percent for environmental performance by an international investment advisory firm. The Company also is ranked in the top 10 percent by Fortune magazine for total shareholder return over the last five years.