Under normal temperatures, the outlook indicates current electricity supplies can meet peak demand this summer, the report says. Rotating outages are unlikely this summer, according to the commission's investigation.

But the report, titled "California's Summer 2004 -- Electricity Supply and Demand Outlook," also includes a cautionary note.

On very hot days, statewide projected reserves may drop as low as 4.8 percent, which could prompt voluntary conservation programs.

"California's demand is continuing to grow and we need to be watchful of the amount of electricity we use," said Susanne Garfield, a spokeswoman for the commission.

Around 8,000 megawatts of electricity have come on line in California in the past three years, according to the commission. Kern County is home to several new power plants.

Even with the additional juice, California needs more energy efficiency measures, according to the commission.

Other California energy folks agree with what the report says.

"It pretty much is in agreement with what we've been saying. We're not forecasting blackouts this summer, but there will be days when we issue calls for conservation," said Gregg Fishman, a spokesman for the California Independent System Operator, which operates the state's power grid.

"The reserve margins are not as thick as we'd like," Fishman said.

Terry Scott, a local account services manager for Pacific Gas and Electric Co., agreed that this summer looks good in terms of electricity supply and demand.

"It's probably future summers we're more concerned about," Scott said.