A contentious energy bill passed by the House is scheduled to be taken up by the Senate today. House Republicans are calling for swift passage of the Energy Policy Act of 2005, but some Senators are threatening to put off a vote until their concerns about offshore oil drilling are met.

Energy policy has e a high-profile topic in recent days, due to skyrocketing gasoline prices, as well as the impending summer strain on electricity. The bill would deal in part with the nation’s electricity grid, nearly two years after a massive blackout hit the eastern U.S.