Peaks Renewables – RNG Project Developer

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Peaks Renewables – RNG Project Developer

About the Company:

Peaks Renewables is a renewable energy development company specializing in the development of low carbon, carbon-neutral, and carbon-negative fuels like renewable natural gas and green hydrogen. Their goal is to help states, communities, utilities, homeowners, and industries reduce emissions while creating economic growth and providing access to clean, safe, reliable, and affordable energy solutions.

They are a subsidiary of Summit Utilities, Inc., focused on investing in innovative technologies and developing projects that will drive down emissions in the thermal energy sector by utilizing waste to fuel throughout the United States. Peaks’ current focus is green hydrogen and renewable natural gas (RNG) development from agricultural waste, landfills, food waste, and looking at other technologies that can help us move closer to a low-carbon future.

About the Solution:

Peaks Renewables (Peaks) is working with six Maine-based, family-owned dairy farms to generate homegrown renewable natural gas. The Peaks facility is located at Flood Brother’s Farm in Clinton, Maine where the company broke ground early May of 2022. Once construction is completed, this facility is anticipated to produce approximately 130,000 MMBtu of natural gas annually by recycling the manure from area dairy farms to generate pipeline-quality renewable natural gas (RNG). The gas will be purchased by Peaks’ affiliate, Summit Natural Gas of Maine. The clean, safe, and renewable gas will be used to warm homes and fuel businesses and industries throughout the state. In addition to the gas that will be used by Summit Natural Gas of Maine, the renewable attributes from the digester will also be sold to third party companies to aid in meeting their goals for emissions reduction. Peaks estimates that the facility will remove 28,000 MT/CO2e annually. That’s the equivalent of taking 6,500 cars off the road. In addition to generating pipeline-quality, carbon-negative renewable natural gas, the facility will also produce animal bedding and fertilizer that will be returned to the dairy farms Peak's is working with, to use in their daily operations. This RNG project will be the first of its kind in Maine and one of only a few projects like this in the country.

In addition to generating RNG from dairy manure, Peaks has also received a nearly $5 million dollar grant from the U.S. Department of Energy to locate a methanized green hydrogen demonstration project at the Clinton, Maine dairy digester. This demonstration project will use captured carbon from the dairy digester and combine it with green hydrogen to create pipeline-quality methane. Once completed, this project will be the first on-system hydrogen methanization facility of its kind in the country.

Peaks Renewables Clinton Maine, United States Visit Company Website

Solution Type

  • AD Support


  • Project Developer


  • Energy
  • Fiber


  • GHG
  • Odor
  • Pathogens

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Solution Strengths, Weaknesses and Critical Indicators

Anaerobic Digester Associated Technology:

NOTE: There are several technology types that are used as part of an integrated manure management system that includes an anaerobic digester and are not applicable to manure management in other cases. The impact of these technologies on the critical indicators are represented as those of an entire anaerobic digester system.


  • Long usable life and can be run reliably
  • Creates energy and generates environmental credits
  • Requires proper preparation of the feedstock
  • Requires other technologies for energy utilization
  • Requires other technologies for digestate handling
  • Proper feeding & system monitoring is required to avoid system downtime
  • Proven technology for odor control, GHG reduction and pathogen reduction

Newtrient Comments/Opinions:

Peaks Renewables has recently been added to the Newtrient catalog. Newtrient will continue to work with Peaks Renewables to further refine the cost and performance information on their solution. Newtrient will update this entry as more information becomes available and as new commercial dairy installations come online.

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