Renewable energy generators have channeled hundreds of millions of kilowatt hours into the North Carolina power grid. That's since the NC GreenPower program was founded 10 years ago.
The initiative collects donations from companies, citizens and utility customers to buy renewable energy and diversify the state's power grid.
NC Solar Center Director Steve Kalland is on the board for NC GreenPower. He said the program has also helped utilities warm up to renewable power providers.