SACRAMENTO – Four years after electricity prices soared and blackouts rolled across California, the state is in danger of another energy crisis – this one involving gasoline and natural gas as well, said a draft report Friday.

The state is a captive of its own geographic and regulatory isolation, separated by miles and mountains from many refineries and fossil fuel sources. Moreover, the state sets stricter fuel standards to trim air pollution, driving up prices and limiting availability as is evident in the wake of Hurricane Katrina, said the California Energy Commission.

"California's way of life is threatened by its growing dependence on oil and natural gas, spiraling energy prices, potential supply shortages and an inadequate and aging energy delivery infrastructure," said the report that, in its final version, will go to Gov. Arnold Schwarzenegger and state legislators.

The draft was released as a three-day international global warming conference hosted by the commission and the California Environmental Protection Agency concluded. Commissioners are to vote on adopting the report Nov. 16.

An EPA panel separately released draft proposals for how the state can meet Schwarzenegger's goal of cutting the state's emissions of greenhouse gases to 2000 levels by 2010, 1990 levels by 2020, and 80 percent below 1990 levels by 2050. A final version will go to Schwarzenegger in January.

The problems are interlinked: Warming temperatures could harm the Sierra Nevada snow pack that provides hydroelectricity, while hotter summers will drive up electricity demand.

"As the state's demand for electricity intensifies, California could face severe shortages in the next few years," partly as a result of the warming trend, the energy report warned.

Both panels recommended conservation, improved technology and regulatory changes among responses.

But the energy commission report warns that "the state has made only minimal progress" since it made similar recommendations two years ago, and calls for policy-makers to "take immediate action." Few new power plants are operating despite an intensive drive after the last electricity crisis, with 7,000 megawatts worth of approved plants on hold due to regulatory and market problems.

California's demand for transportation fuels has increased nearly 50 percent in 20 years. It is second only to Texas in consumption of natural gas, 87 percent of which is imported from other states or nations and much of which goes to produce electricity.

Electricity transmission problems last year cost the state's economy more than $1 billion, the energy report estimated, and this summer led to Southern California's first rolling blackouts since the 2000-2001 crisis.