Energy Efficient Investments Inc.

Energy Efficient Investments Inc. EEI is a full services Energy Management Company At EEI we work to reduce energy cost for residential and commercial buildings. We work with building owners to create energy savings plans that require little or no capital investment.

Pay for the improvements through the savings.


EEI is very excited to announce that our grant application for the Biomass Plant at Plymouth High School has been approved by the NH PUC!


City saves $10k annually w/ new LED lights at city hall, please see press release link below for details..


EEI is excited to launch our new page! We hope you will follow us as we share updates about our growing company and the field of energy conservation services.


19D Star Drive
Merrimack, NH


(603) 423-6000


Insulation, Building Controls, and Energy Management Solutions


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