The first TV advertisement in Obama’s campaign, airing in the US this week, includes shots of wind turbines and of solar panels.
A section of the campaign website has also been set up featuring the line: "Don't believe the smears. Get the facts on the President's record."
The voice-over says: "America’s clean energy industry — 2.7 million jobs and expanding rapidly".
A Democrat, Obama is seeking re-election to the White House in November. The rival Republicans have not yet selected a candidate.
The TV ad shows just how much Obama’s energy policy — of boosting renewables and reducing dependence on imported oil — will be a selling point in the race.
Obama’s ad also tries to deflect criticism of the $535-million federal loan guarantee awarded to solar company Solyndra, which later went bankrupt. ‘Solyndra-gate’ has fuelled criticism of Obama and even of other financial support for renewable energy.
The ad blames "secretive oil billionaires" — a reference to the billionaire Koch brothers — for anti-Obama criticisms involving Solyndra that it said are "not tethered to the facts."