
Katharos Biogas Plant was struggling with recurring failures in its digestate return system. The problem was fixed with a progressive cavity pump engineered specifically for high solids with high-pressure service. IMAGE: ROTO PUMPS
October 9, 2025
BY Sean Clark
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SmartestEnergy has signed a long-term biomethane offtake and environmental products agreement with Zenco Group to support the development of a 420 GWh biomethane product that is expected to begin operations in 2028.
The U.S. Department of Energy on Oct. 14 released guidance that will help clean fuel producers claim the 45Z clean fuel production credit for fuels, feedstocks and pathways not included in the agency’s current 45Z rate table.
California Waste Solutions Inc. is extending its environmental work across the Pacific, pairing recycling operations in Oakland and San Jose with large-scale waste infrastructure and technology investment in Vietnam.
Copenhagen Infrastructure Partners (CIP), through its Advanced Bioenergy Fund II (ABF II), has reached final investment decision (FID) on Via Verde, an Italian biomethane platform that comprises a development pipeline of 20 projects.
Gevo Inc. on Oct. 1 announced sales of substantially all of the Section 45Z tax credits generated by its ethanol and renewable natural gas (RNG) facilities in 2026, totaling $70 million worth of credits.