Chelmsford was selected by the State on April 5, 2013 to participate in the Solarize Massachusetts program. In 2012 this program helped 749 residents and businesses in 17 towns to install solar photovoltaic (PV) technology to generate clean, renewable electricity. To encourage participation in the program, discounted “tiers” of pricing will be offered based on the number of enrollees. During 2012 participating customers were able to purchase solar electricity systems for 20% less than the statewide average price.