About Us

Our History

Energy Efficient Investments Inc. was founded in 2007 and specializes in Performance Contracting in New Hampshire. Along with our parent company, ENE Systems Inc., we have over seventy years of experience in building control systems, security, automation, and energy efficiency. Our dedicated team has built the experience to handle any energy efficiency project you may need.

Our Mission

EEI strives to provide customers with multi-faceted service focused on Energy Performance Contracting, improving occupant comfort and productivity, reducing energy consumption and operating costs, and increasing your property value through renovation. We will also assist you with financing projects, writing grants, applying for utility incentives, tax credits and more. Our team is capable of helping you throughout each step of the project. EEI works with you to discover your end goals in order to make them an energy efficient reality.

Contact us today for more information.


“The School’s electric savings for the first two months post construction are on pace to be more than $60,000 per year. This is far in excess of what was projected.”

- Jon Francis - Facilities Director at Plymouth High School