Investors with a green way of thinking can keep up to date on renewable and clean energy companies through the WilderHill Clean Energy Index, ticker symbol ECO. The new index on the American Stock Exchange is comprised of publicly traded companies that focus on renewable sources of energy and technologies facilitating cleaner energy.New York, New York – August 19, 2004 [SolarAccess.com] “As smart energy alternatives including wind, solar, and hydrogen fuel cells have reached billion dollar markets and gain increasing demand, we believe the WilderHill Clean Energy Index is the right product at the right time. We’re delighted to partner with the Amex for launching this product, which proves to have a low correlation to other indexes,” said Robert Wilder, managing director of WilderShares. There are 39 companies listed on the index, including: Fpl Group (FPL), Evergreen Solar (ESLR), Kyocera (KYO), Hydrogenics (HYGS), Calpine (CPN), Fuelcell Energy (FCEL), Ballard Power Systems (BLDP), Satcon Technology (SATC), Distributed Energy SYS (DESC), Magnetek (MAG) PowerShares Capital Management filed a registration statement in July that included an exchange traded index fund tracking the WilderHill Clean Energy Index along with 25 other new exchange traded funds. The WilderHill Clean Energy Index is a modified equal weighted index comprised of companies whose businesses stand to benefit substantially from the societal transition toward the use of cleaner energy and conservation.