The bill also requires 100 percent fossil-free sources used to generate electricity by 2045.
Brown is pushing for regional management of the western grid to better share renewables, but he was unable to convince lawmakers to give up the control that the governor and Legislature now have to appoint leaders of the state's primary grid operator. Governor Jerry Brown signed a bill on Monday mandating the state to strive towards this goal, along with an executive order calling for carbon neutrality throughout California.
The state will have to lean more heavily on wind, solar, geothermal, and hydroelectric power to reach its goal, as well as seek more ambitious battery build-outs and create incentives for dramatic changes in energy efficiency at the industrial, commercial, and residential levels.
The signing came in the same week that San Francisco will host a Global Climate Action Summit on September 12-15. As MIT Technology Review previously reported, the state is, "acting as a test bed for what's technically achievable, providing a massive market for the rollout of clean-energy technologies and building a body of knowledge that other states and nations can leverage".
"We want others to do likewise, and if enough people often enough do what is needed we will curb global warming", Brown said during an interview with The Associated Press.
"Have no illusions", Brown said.
"California is committed to doing whatever is necessary to meet the existential threat of climate change", Brown said in his S.B.More news: Man kills 5, including wife, before turning gun on himself
The state of California is the world's fifth largest economy, and in many cases, it already sets some of the most ambitious environmental goals on the continent, if not the planet.
Currently, about one-third of its electricity comes from renewables. The bulk of that is solar energy. After that, he says the state should emit net negative greenhouse gas emissions.
Here's what we know about this new era for California.
The order directs several state agencies to set targets for artificially removing carbon dioxide from the air through a process known as "sequestration".
"We applaud the governor for his support to make a 100% clean energy grid a reality for our great state, and demonstrating California's global leadership for a secure, clean, affordable energy future", said Amisha Rai, Senior Director of California Policy for the Advanced Energy Economy (AEE).
State Sen. Kevin de León, D-Los Angeles, wrote the bill to push 100 percent green energy in the state.
Monday's law goes further, saying the last 40 percent of the 100 percent total can come from "carbon-free" sources, including large dams, nuclear power and even natural gas-fired power plants, if they can capture and store the carbon in the ground, which so far is an unproven technology.