These new power plants could cost the City as much as $350 million to install and run. And San Franciscans could be on the hook for all of it.

In a recent Chronicle Opinion Editorial, Joshua Arce, Executive Director of Brightline Defense Project and Van Jones, President of the Ella Baker Center for Human Rights, said "the project’s quarter-billion to half-billion-dollar budget could better serve San Francisco by being committed to the development of renewable energy, such as solar, wind or tidal power."