Designating natural gas plants as the best available technology — essentially requiring utilities to generate less electricity from coal and more from gas instead of being limited solely to requiring that coal plants operate more efficiently — has allowed the administration to establish much more
ambitious emissions reduction requirements and is one of the central provisions that legal opponents have challenged.
Ambitious new initiatives have cascaded out of Schwarzenegger's office — including the two measures raising the renewable - power
requirement on utilities, a state subsidy program to encourage the installation of electricity - generating solar panels on 1 million California roofs, and in January 2007, an executive order establishing the nation's first «low - carbon fuel standard,» which requires a
reduction of at least 10 percent in the carbon
emissions from transportation fuels by 2020.