Berkeley is set to become the first city in the nation to help thousands of its residents generate solar power without having to put money up front - attempting to surmount one of the biggest hurdles for people who don't have enough cash to go green.

The City Council will vote Nov. 6 on a plan for the city to finance the cost of solar panels for property owners who agree to pay it back with a 20-year assessment on their property. Over two decades, the taxes would be the same or less than what property owners would save on their electric bills, officials say.

"This plan could be our most important contribution to fighting global warming," Mayor Tom Bates said Thursday. "We've already seen interest from all over the U.S. People really think this plan can go."

The idea is sparking interest from city and state leaders who are mindful of California's goals to reduce greenhouse gas emissions by 25 percent by 2020. Officials in San Francisco, Santa Cruz, Santa Monica and several state agencies have contacted Berkeley about the details of its plan.

"If this works, we'd want to look at this for other cities statewide," said Ken Alex, California deputy attorney general. "We think it's a very creative way to eliminate the barriers to getting solar panels, and it's fantastic that Berkeley's going ahead with this."