QVC is now selling something in an entirely new product category – energy from the sun.

Liberty Media and its retail shopping subsidiary have joined the renewable energy drive, turning up a nearly five acre “solar farm” at its N.C. QVC facility.

Liberty (Nasdaq: LINTA) teamed up with for the project.

SunPower also worked software giant SAS to build a similar size facility in Cary. That farm began generating power this week, too.

Liberty will sell the power produced by the solar panels to the North Carolina Electric Membership Corporation (NCEMC). Like Progress Energy, which is buying the power generated at SAS, the state’s electric cooperatives are under mandate to get an increasing amount of energy from renewable sources.

The Rocky Mount site includes solar panel technology that enables the equipment to track the sun. It has a capacity of one megawatt, roughly the equivalent of powering 100 homes.

According to Liberty, the solar power will offset 20 percent of the QVC campus’ annual energy costs. It also will help cut carbon emissions.

"Leaders of industry and consumers are motivated by the potential of sustainable business practices," said Greg Maffei, Liberty’s chief executive officer, in a statement. "We believe it is our responsibility to consider investments in alternatives and solutions that will decrease the environmental impact and ultimately be good for business. Fulfilling energy needs with renewable resources is one way to make good on that commitment."

QVC employs more than 1,000 people in Rocky Mount.