Govenor of the US state of California, Arnold Schwarzenegger, has signed an executive order to help create a regulation where one-third of energy sold by utility companies in the state over the next decade come from renewable sources.

Schwarzenegger signed the executive order at a massive solar energy site outside of Sacramento and reiterated his intention to veto a bill, passed by Legislature last week, reports the San Francisco Chronicle.

Schwarzenegger said he could not sign the bill – supported by environmentalists, labour, consumer advocates and many utilities – due in large part to restrictions that would be placed on the utilities ability to bring in power from outside the state to meet the goal, according to the newspaper.