TALLAHASSEE, Fla. — Call it a green energy pledge for greenbacks.

Gubernatorial candidate Charlie Crist has vowed to use his future authority as governor to impose renewable energy standards similar to the 20 percent mandate he championed when last serving as Florida’s chief executive.

That much Crist made clear at a recent solar energy rally at the Florida Capitol. The event was sponsored by the Southern Alliance for Clean Energy, a 501(c)3 nonprofit.