About us
The Cambridge Energy Alliance (CEA) is a non-profit service sponsored by the City of Cambridge and NSTAR that helps residents and business owners invest in making their homes and buildings work smarter and more efficiently-saving energy, water and money.
How CEA works with the City
As one of the premier walking cities in the US, most of the greenhouse gas (GHG) emissions in Cambridge are from buildings located in the city-houses, apartment buildings, retail business, offices, educational institutions and other large business operations. The City of Cambridge is sponsoring CEA because the City Council has set a goal to reduce GHG emissions by 20% in the next few years, so eliminating wasted energy in our homes and workplaces is a priority.
How CEA works with you
We identify opportunities for your home or business to be more energy efficient. Working with energy efficiency professionals, we help you replace inefficient appliances, light and heating and cooling equipment. We also ensure that your building is properly insulated so warm and cool air don’t escape from your building. This will significantly reduce your heating bills in the winter and reduce your electricity bills in the summer. We also connect you to financial institutions who can help you pay for energy efficient improvements to your home or business.
CEA is organized to provide these services to residents, businesses and institutions of all sizes throughout Cambridge.

