Case Study: Great Neck Water Pollution Control District cuts energy costs and boosts on-site power with Capstone Green Energy microturbines

Great Neck Water Pollution Control District - Customer Case Study

Great Neck Water Pollution Control District, a municipal utility serving 25,000 Long Island residents in Great Neck, New York, wanted to upgrade its digester equipment and create a more efficient onsite energy system. Working with Capstone Green Energy, the district pursued a waste-to-energy approach using C65 microturbines to help reduce energy costs and improve sustainability.

Capstone Green Energy installed three C65 ICHP microturbines as part of a phased project, alongside digester upgrades and a new grease-receiving station that enabled co-digestion of food waste and produced higher-quality biogas. The system now generates 195 kW, covers more than half of the site’s energy needs, supplies 100% of digester and building heat, and helped cut the average monthly electric bill by over $40,000 in 2019, with approximately $529,000 saved in utility fees.

Great Neck Water Pollution Control District

Chris Murphy

Plant Superintendent