About 115 megawatts of new solar capacity were added to the North Carolina power grid in the second quarter of 2016. In September of 2015 North Carolina reached one gigawatt of solar energy.
“The ranking is a reflection of how North Carolina has become a national leader in the solar industry, and there are many factors that have led to that,” said Steve Wall, a policy research associate at the UNC Institute for the Environment.
Wall credits the growth of solar energy in the state to policy initiatives like tax credits and Senate Bill 3, or the Renewable Energy and Energy Efficiency Portfolio Standard.
SB 3, passed in 2007, set regulatory standards for renewable energy generation in North Carolina power companies.
Wall said the bill originally required these utilities to generate three percent of their energy through renewable sources such as solar, wind, biomass and hydropower. The regulation was set to increase over time, stabilizing in 2021 at 12.5 percent renewable energy generation.
Jon Sanders, director of regulatory studies at the right-leaning John Locke Foundation, said North Carolina is the only southeastern state with such legislation.
Solar power in North Carolina has also grown due to generous tax incentives, he said.