The Connecticut Public Utilities Regulatory Authority issued an interim decision on Dec. 5 finding that Dominion Energy Inc.’s 2,100-megawatt Millstone nuclear plant is “at risk of retirement,” a determination that could allow the facility to compete for long-term contracts with zero-carbon resources such as wind, solar and hydropower. The Connecticut Department of Energy and Environmental Protection on July 31 issued a request for proposals for zero carbon resources setting an “at risk” time period of June 1, 2022 to account for capacity obligations for existing resources participating in the ISO New England Inc.’s forward capacity market. Connecticut enacted legislation last year allowing the state’s only nuclear power plant to compete with other zero-carbon electric generators. Regulators concluded that Millstone is critical for the region’s fuel security and emission reduction goals, but said that resources seeking evaluation of attributes other than price should prove that they are at risk of retirement. In May, Dominion Energy Inc. on May 31 filed financial statements and testimony with the commission to demonstrate its eligibility.