Residents from across Cape Cod are planning to converge on the State House to call on Gov. Deval Patrick to help shut down the Pilgrim nuclear power plant in Plymouth.
Activists are tying their visit Monday to the eve of the third anniversary of the meltdowns at the Fukushima nuclear power plants in Japan.
Residents say they want Patrick to press the Nuclear Regulatory Commission to shutter the plant. The commission voted in 2012 to relicense Pilgrim through 2032.
The plant's operators say the facility is safe and secure, adding that it produces 10 percent of Massachusetts' electrical needs.
Patrick said last year that it was not clear to him that Massachusetts needs Pilgrim to meet all of the state's electricity needs.
Vermont Yankee nuclear power plant is set to close this year.