sentences:  According to the California Energy Commission, California is already on track to meet these goals, with 27% of energy in 2016 purchased from renewable sources.In 2012, he co-chaired the successful Proposition 39 campaign which closed a corporate-tax loophole and provided $2.5 billion in revenue for energy-efficiency upgrades in schools.De León also sponsored SB 100, which would have required the state of California to generate 50% renewable electricity by 2026 and 100% renewable electricity by 2045.