You may have experienced someone coming to your door offering free energy audits. We did the research and have found the official, vetted contacts.
For National Grid customers the contact is Northern Energy
For Columbia Gas customers, the contact is:
Michael DiMuccio
C&I Project Manager, Energy Efficiency
Columbia Gas of Massachusetts
Office (508) 580-0100 ext 1309
mdimuccio@nisource.com
Columbia Gas has also provided some information:
