President Barack Obama announced a new clean energy program in Pennsylvania on Thursday, seeking to show he remains focused on jobs in a state that may be essential to his 2012 re-election prospects.

Obama outlined a plan in his State of the Union address last month to encourage clean energy technologies and to double by 2035 the U.S. share of electricity from clean energy sources such as wind, solar, nuclear and “clean” coal.

As part of that program, Obama announced a plan to improve energy efficiency in U.S. commercial buildings by offering businesses incentives to help pay for upgrades of offices, stores and other buildings, which he said consume 40 percent of the energy Americans use, and could save $40 billion a year.