Peregrine Energy Group and Bay State Consultants to Help Greenfield Bring Cost-Effective Renewable Energy to Residents Through Electricity Aggregation

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The project to reshape aggregation in Massachusetts as a tool to move communities toward sustainability goals.

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We’re reshaping aggregation as a tool for communities to take a big step toward sustainability goals without tapping into already stretched municipal and household budgets.

Peregrine Energy Group and Bay State Consultants are shifting the focus of municipal electricity aggregation from savings to renewable energy with their recent selection as aggregation vendor for the town of Greenfield. Through an aggregation, the team will help the community to make an increased amount of renewable energy available to local residents and businesses at more cost-effective pricing than they could otherwise.

A municipal electricity aggregation is a framework within which a municipality makes a decision about an electricity supplier on behalf of an entire community. Made possible by Massachusetts utility deregulation laws, municipal electricity aggregation has started to garner increased attention in recent years due to factors like a streamlined state approval process and an increased number of electricity suppliers that are experienced with aggregation.

The Peregrine/Bay State focus on renewable energy marks a shift from the way aggregations have been viewed in most other Massachusetts communities. In recent aggregations, communities and aggregation vendors have focused on the cost savings made possible by finding an alternative to the utility’s electricity supply. But the savings per household are modest. The typical savings as compared to the basic service rate in recent aggregations would yield homeowner savings of $20 to $30 per year.

“The hidden potential of aggregation lies in how we can use the competitive energy market to make renewable energy available for an entire community at the same or lower price as the utility’s Basic Service rate,” explained Peregrine founder and CEO Paul Gromer. "We’re reshaping aggregation as a tool for communities to take a big step toward sustainability goals without tapping into already stretched municipal and household budgets.”

Bay State President John Shortsleeve echoed a similar sentiment, “We understand that savings may be the first priority in many communities. And the savings for the business community with larger electric loads can be impressive. But we are encouraging our clients to recognize the additional benefit of greener power for an entire community at rates that beat the cost of utility supply.”

Carole Collins, Energy/Sustainability Coordinator for the Town of Greenfield said, “We were very excited to be working with Peregrine Energy Group and Bay State Consultants to employ municipal aggregation as a vehicle to advance Greenfield’s sustainability agenda. In addition to supplying electricity generated from 100% renewable sources, we anticipate that our municipal aggregation program will expedite the growth of Greenfield generated clean electricity projects that will provide power to residents and businesses. Peregrine Energy Group and Bay State Consultants have transformed Greenfield’s ideas into a dynamic program that configures municipal aggregation as a very advantageous tool for communities striving to be more sustainable.”


Peregrine Energy Group is an energy consulting company with a dual expertise in building energy efficiency and energy data analysis and reporting. Using Peregrine Focus, Peregrine’s web-based energy data analysis and reporting tool, Peregrine collects and reports energy use and building data for thousands of state, municipal, and private buildings across New England. Peregrine also works regularly with municipal, regional, state, and commercial building portfolio owners to develop and implement energy efficiency plans.

Founded in 1992 and based in Boston, Massachusetts, Peregrine offers a deep knowledge of energy efficiency, a thorough understanding of energy programs and policies, and a passion for making energy information easy to understand, use, and share with others.


Bay State Consultants has been procuring energy contracts on behalf of municipal clients for the past 15 years. Since 2001, Bay State has procured more than 550 electric and natural gas contracts for more than 150 municipal clients in Massachusetts and Connecticut. One of the pioneers of municipal aggregation in Massachusetts, Bay State filed the first petition for municipal aggregation in Massachusetts in 1998.

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