New & Used Biogas Generators for Sale
Biogas generators are gas-fuelled engines designed to run on biogas streams produced by landfill sites, agricultural digesters, sewage treatment plants, and industrial biogas processes. The leading platform for biogas applications is the INNIO Jenbacher Type 4 series, with over 6,000 engines delivered worldwide, generating roughly 7 GW of installed capacity. The Type 4 range covers the J412 (934 kW at 43.5 percent electrical efficiency), J416 (1,248 kW at 43.7 percent), and J420 (up to 1,562 kW at 44.0 percent).
All Type 4 engines accept natural gas, biogas, sewage gas, landfill gas, coal mine gas, flare gas, propane, and other special gases including coke, wood, and pyrolysis gases. The Jenbacher Type 3 platform (500 kW to 1,100 kW) is widely used in smaller agricultural biogas plants and municipal sewage applications, and the Type 2 (250 kW to 350 kW) suits compact decentralised installations. USP&E supplies biogas generator sets in 50 Hz and 60 Hz across the full Jenbacher range, alongside EPC installation and long-term O&M support. Click Fast Quote for a response within hours.
Biogas Power Generation: Turning Waste Streams Into Energy
Biogas power generation is expanding globally as landfills, water utilities, dairy operations, and food processing sites convert waste gas streams that were previously flared or vented into electrical and thermal energy. Typical applications include greenhouse CHP integration, palm oil mill effluent (POME) to power conversion, and electricity generating peaking plants where containerised Jenbacher units start in under two minutes from standby.
CHP, Trigeneration, and Total Plant Efficiency Above 90 Percent
Jenbacher gas engines are commonly configured for combined heat and power (CHP) generating electricity and heat simultaneously, trigeneration adding cooling, and quad-generation adding CO2 capture for greenhouse applications. CHP module solutions reach total efficiencies exceeding 90 percent. The LEANOX air-fuel ratio control system supports stable combustion across varying gas calorific values, an important advantage when running on biogas or landfill gas with variable methane content. All current Jenbacher engines are built “Ready for H2” supporting future hydrogen blending up to 100 percent.
Frequently Asked Questions
Where can I buy a used biogas generator for landfill or digester gas?
USP&E supplies used and new biogas generators across the INNIO Jenbacher portfolio, which is the industry standard for waste-to-energy applications. The Type 4 series (J412 at 934 kW, J416 at 1,248 kW, J420 at up to 1,562 kW) is the dominant platform with over 6,000 engines installed worldwide generating roughly 7 GW of capacity. The Type 3 (500 kW to 1,100 kW) suits smaller agricultural and municipal biogas plants. All Type 4 engines accept biogas, sewage gas, landfill gas, coal mine gas, and flare gas, with electrical efficiency between 43.5 and 44.0 percent.
What is the difference between a biogas generator and a standard natural gas generator?
Biogas generators are gas engines designed and tuned for the variable methane content and contaminants typical of biogas streams, including hydrogen sulphide (H2S), siloxanes, and moisture. Jenbacher engines use the LEANOX air-fuel ratio control system to maintain stable combustion across varying gas calorific values, an important advantage when running on biogas (typically 65 percent CH4 / 35 percent CO2) or landfill gas (typically 55 percent CH4 / 40 percent CO2 / balance N2). Operating on biogas without an engine designed for it can cause accelerated wear and reduced service life.