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Viridi Energy to transform Maine digester plant into “industry-leading” RNG site

By District Energy posted 03-20-2024 08:26


Bioenergy Insight


Viridi Energy (Viridi), a leading renewable natural gas (RNG) platform, has acquired a legacy biosolids digester plant in Brunswick, Maine in the US, with plans to transform the site into an industry-leading waste-to-RNG facility.

The facility will generate valuable renewable energy and help power the local community, offer a sustainable and cost-effective solution for managing biosolids, and support compliance with local regulations aimed at mitigating per-and polyfluoroalkyl substance (PFAS) contamination in the region, according to the firm.

In connection with the acquisition, Casella Waste Systems (Casella), a regional solid waste, recycling and resource management services company, will manage feedstock collection and delivery logistics for an estimated 85,000 tons of biosolids per year collected from a network of wastewater treatment plants.

At Viridi’s overhauled Brunswick facility, the biosolids will be transformed, via anaerobic digestion, into enough energy to heat more than 3,000 homes for a year.
The facility will also supply electricity directly to Brunswick Landing, the 3,300-acre campus featuring more than 1.6 million square feet of commercial, industrial and professional office space that is home to both the Brunswick facility and more than 160 other companies.

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