The National Renewable Energy Laboratory released the The Western Wind and Solar Integration Study, a report examining how increasing wind and solar generation could impact coal and gas plants in the West, September 24. It found that cycling to accommodate wind and solar generation could increase fossil fuel-fired plants’ operational costs by 2 to 5 percent. The study was the joint effort between the Office of Energy Efficiency and Renewable Energy and the Office of Electricity Delivery and Energy Reliability.