Matthew Hamilton is reporting at Capitol Confidential Gov. Andrew Cuomo’s administration announced Mon., May 22, that a new locally sourced mini-power grid will be built to help power the Empire State Plaza, including the State Museum, Egg, agency buildings, Corning Tower, Legislative Office Building and the Justice Building. The project is expected to start later this year and be completed by the end of 2019. The cogeneration plant will be built in a dormant Sheridan Avenue facility attached to the large steam plant that continues to be used to heat and cool the Capitol complex. The microgrid will supply the 98-acre Plaza’s power, with the ability to produce up to 90 percent of the complex’s annual electric energy needs. The new facility is projected to save more than $2.7 million in annual energy costs and remove more than 25,600 tons of greenhouse gases from the atmosphere each year -- the equivalent to taking more than 4,900 cars off the road, according to Cuomo’s office. Read the full story at Capitol Confidential, a Times Union blog.