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Blendtech is a leading technology provider in the domain of compressed biogas with a background of having built and operated more than 50 biogas plants in the past with expertise in various feedstocks.

Electricity Generation Methods

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A. Internal Combustion Engines (ICE)

  • Most commonly adopted method
  • Works like a diesel or gasoline engine, but runs on biogas.
  • Drives a generator to produce electricity.
  • Efficiency: 38–40% electrical energy conversion efficiency
  • Mature, cost-effective, reliable but requires regular maintenance; sensitive to impurities like H2S

B. Gas Turbines

  • Similar to those used in natural-gas plants.
  • More suitable for large biogas flows
  • 25–35% electrical Efficiency
  • Low maintenance; handles cleaner biogas well. Not economical at small scale
Biogas-powered gas turbines for electricity generation

C. Combined Heat and Power (CHP)

Most biogas systems use CHP, where:

  • Electricity is generated in the generator
  • Heat from engine/turbine exhaust is captured for: Digester heating, Space heating, Steam Generation, Industrial processes

This concept of CHP boosts the overall efficiency to 70–90%

Combined Heat and Power (CHP) system using biogas for energy generation
FREQUENTLY ASKED QUESTIONS

FAQ

This typically depends on the customer requirements. Most installations range from 125 KVA to 1MW. 

Yes. Dual fuel engines are available in the market now. As per the local conditions it can be configured

Yes. Most installations in European Geography use the concept of CHP (Combined Heat and Power).  It is possible to achieve 85-90% Efficiency in such installations.

Viability of Biogas to Electricity completely depends on the context of the project. Where Diesel is used for electricity generation, Biogas to Electricity becomes highly viable