When Southern California Edison unveiled plans to install 250 megawatts’ worth of solar panels on warehouse roofs back in March, it was hailed as a ground-breaking move. In one fell swoop, the giant utility would cut the cost of photovoltaic power, expand the solar market and kick-start efforts to transform untold acres of sun-baked commercial roof space into mini-power plants. There’s just one problem: the solar industry is fighting the billion-dollar plan. In briefs filed with the California Public Utilities Commission, solar companies, industry trade groups and consumer advocates argue that allowing a utility to own and operate such massive green megawattage will crowd out competitors who can’t hope to compete with a project financed by Edison’s ratepayers. (In California, shareholders of investor-owned utilities are guaranteed a rate of return for approved projects, while utility customers bear a portion of the costs in the form of higher rates.) The five-year plan “would establish SCE as the monopoly developer of commercial-scale distributed solar in its service territory,” wrote Arno Harris, CEO of Recurrent Energy, a San Francisco company that sells solar electricity to commercial customers. “This would irreparably impair the development of a competitive solar industry.” Southern California Edison (EIX) is the first utility in the United States to propose such a “distributed generation” scheme and the dispute is being watched closely as a test case for the viability of producing renewable electicity from hundreds of millions of square feet of commercial rooftops. Such systems can be plugged directly into existing transmission lines and tend to generate the most solar power when electricity demand spikes – typically on summer afternoons when people crank their air conditioners. Having such green energy on tap would save utilities from having to build expensive and planet-warming fossil fuel-powered “peaker plants” that sit idle except when demand suddenly rises. Even critics hail Edison’s move as “bold” and “visionary” and no one disputes…


