Duke Energy will deliver a distributed solar development plan to the South Carolina public utilities commission in February in response to the net metering agreement reached last week.

In December, South Carolina became the 44th state to institute net metering. Net metering allows solar customers to get credit on their utility bills at the retail rate for any excess power their rooftop solar installations send back to the grid.

Under the law, Duke Energy and SCE&G agreed to not seek any solar specific charges until 2021. Duke and other utilities in the state will charge and pay solar customers for energy at the same rate—about 10 cents per kilowatt-hour right now—over the next decade, reported Renewable Energy World.