Capstone Green Energy – MicroTurbine Generators

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Capstone Green Energy – MicroTurbine Generators

Microturbine Generators

Company Description:

Capstone Green Energy® is the world’s leading producer of highly efficient, low-emission, resilient microturbine energy systems. Capstone microturbines serve multiple vertical markets worldwide, including natural resources, energy efficiency, renewable energy, critical power supply, transportation and microgrids. Capstone offers a comprehensive product lineup, providing scalable systems focusing on 30 kWs to 10 MWs that operate on a variety of gaseous or liquid fuels and are the ideal solution for today’s distributed power generation needs. To date, Capstone has shipped over 10,000 of these systems into 73 countries logging millions of operating hours.

Capstone is committed to improving the efficiency of energy needs around the world, while simultaneously reducing global emissions of pollutants and greenhouse gases. Capstone’s energy systems help end users improve their impact on the environment, while still meeting power and reliability needs. During fiscal year 2019, Capstone saved end-use customers an estimated $253 million in annual energy costs and 350,000 tons of carbon.

Not only does Capstone enable customers to reduce CO2 and emissions, Capstone applies the same principals to its own environmental footprint and focuses internally on its environmental risks, energy consumption, waste disposal and carbon footprint. Capstone also strives to foster a corporate culture emphasizing its relationship with employees, customers and suppliers in order to ensure that Capstone’s corporate values are aligned with those of its employees, customers and suppliers.

Technology Description:

With the use of an anaerobic digester, Capstone microturbines run efficiently on renewable fuels such as methane and other biogases from landfills, wastewater treatment facilities and renewable natural gas. They also run efficiently on other small biogas applications like food processing plants, livestock farms and agricultural green waste operations. Microturbines can burn these renewable fuels with minimal emissions, thereby, and in some cases, avoiding the imposition of penalties incurred for pollution while simultaneously producing electricity from this “free” renewable fuel source for use at the site or in the surrounding areas.

Capstone Green Energy 16640 Stagg Street Van Nuys, CA USA (818) 407-3600 Visit Company Website

Technology Type

  • AD Support


  • Equipment Vendor
  • Service Provider


  • Energy


  • GHG
  • Odor
  • Pathogens

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Technology Strengths, Weaknesses and Critical Indicators

Anaerobic Digester Associated Technology:

NOTE: There are several technology types that are used as part of an integrated manure management system that includes an anaerobic digester and are not applicable to manure management in other cases. The impact of these technologies on the critical indicators are represented as those of an entire anaerobic digester system.


  • Long usable life and can be run reliably
  • Creates energy and generates environmental credits
  • Requires proper preparation of the feedstock
  • Requires other technologies for energy utilization
  • Requires other technologies for digestate handling
  • Proper feeding & system monitoring is required to avoid system downtime
  • Proven technology for odor control, GHG reduction and pathogen reduction

Newtrient Comments/Opinions:

This technology has been used on dairy digester gas in the U.S. in the past, installed by a distributor, but based on Newtrient's information that system is currently not operating. The turbine technology itself was not the primary issue, but there were multiple problems with the electronics which resulted in limited run time and excessive downtime on the system. The turbines are capable of handling hydrogen sulfide but an important consideration in the installation of the system is that the other components (i.e. blowers and filters) must also be capable of handling hydrogen sulfide as well.   Because there are no North American installations at this time, the Capstone MicroTurbines have not been evaluated for a 9-Point Score. Newtrient will continue to work with Capstone Green Energy to collect cost and performance information if new commercial dairy installations come on line.

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