On May 14, 2026, Casella Waste Systems and Waga Energy held a ribbon-cutting for their new renewable natural gas (RNG) facility at the Chemung County Landfill in Elmira, New York.
The plant operating since January 2026 uses Waga’s WAGABOX landfill-gas upgrading technology and has a design capacity of 610,000 MMBtu RNG/year, with year-one projections of 340,000 MMBtu (equivalent to 2.4 million diesel gallons). It avoids over 47,000 tons of CO2e per year. Waga funded 100% of construction and will own and operate the facility for 20 years under a revenue-sharing agreement with Casella, injecting to the Valley Energy gas network.
Why it matters for Green Renewable Energy: Landfill gas RNG (Renewable Natural Gas) is one of the cheapest, most practical, and easiest-to-scale sources of clean renewable gas available today. Demand for this green fuel is growing quickly, especially from heavy transport companies (such as trucks, buses, and ships) looking for cleaner alternatives.