The Acadia Center has released a study showing the value of solar projects in Rhode Island. Acadia Center said it assessed the grid and “societal value” of six solar photovoltaic systems to understand the value that they provide to the grid. It found that the value of solar to the grid – and ratepayers connected to the grid – ranges from savings of 19 to 25 cents per kilowatt hour, with additional societal values of 7 cents per kilowatt hour.