Clean Energy Solutions

Clean Energy Solutions, Inc.

Trusted advisors for the energy of the future.


Forging innovative solutions that move clean energy forward.

Clean Energy Solutions, Inc., known to many of our clients as simply CESI, is a consulting firm headquartered in Boston, MA with staff in Washington, DC and NC. Our firm specializes in energy efficiency, renewable energy, and distributed microgrid developments for low-income communities and for city and state policy makers. 

Our principals have been on the forefront of the clean energy movement for over 25 years and have assisted countless government, nonprofit, small business, and foundation clients to formulate policies, programs, and business plans that conserve energy, reduce costs, and protect the environment. 

CESI has consulting arrangements with a substantial number of expert specialists in financing, regulation, economic analysis, and engineering. This enables immediate access to the full spectrum of energy-related disciplines.