There are fewer then 10-thousand electric cars on the road in California now. To increase that, the collaboration is helping to fund four thousand charging stations in the state.
Diane Wittenberg chair's the group. She says it's important to reach that one million goal.
"That would be a sustainable market segment so that automakers would continue to make plug-in electrics, people would continue to buy them, there'd be enough volume that their pricing would be good, and then they can grow from there."
Wittenberg says electric cars don't rely on foreign oil, and put out about 75 percent less greenhouse gases than regular cars.
One of the biggest complaints about electric vehicles is that they have limited range. The all - electric Nissan Leaf can go up to 120 miles, and the hybrid Chevy Volt will make it 40 miles before switching to gasoline.