Cranston officials have yet to sign on. But the Progressive Democrats’ environmental coordinator Wil Gregersen said the technology exists to make the city a leader in eliminating fossil fuels.

“Using solar and wind, a micro-grid system and energy storage would allow Cranston to generate 100 percent of the energy it needs,” Gregersen said during an interview at The Public’s Radio. “There’s a lot of efficiencies that are built into using a micro-grid and modern wind and solar technology that make this possible.”

If Cranston moves ahead, there are a lot of questions about how the renewable approach might be scaled to go statewide.

But Nate Carpenter, state coordinator for the Progressive Democrats, contends that renewable energy could free up a lot of money for other uses in Rhode Island.

“We’re a state that is always in need of money,” Carpenter said. “We have pension shortfalls, we have a school system that is crumbling. We need this money. And if we can become self-sufficient, the only other thing that comes with this is the thousands of jobs, a more sound economy, and something we’re going to need forever, which is energy, and we’re going to supply that.”

The Progressive Democrats unveiled their plan during an event Wednesday evening at Buttonwoods Brewery in Cranston. More than 20 state lawmakers have expressed support for the proposal.