Turbine developments |
20% hydrogen milestone for M501G in Georgia, USA
Mitsubishi Power and Georgia Power, alongside the Electric Power Research Institute (EPRI), have successfully validated fuel blending of hydrogen and natural gas at both partial and full load on an M501G gas turbine at Georgia Power’s McDonough-Atkinson power plant in Smyrna, Georgia, USA
McDonough-Atkinson power plant (credit: Georgia Power)
The demonstration project is described as “the first to validate 20% [by vol] hydrogen fuel blending on an advanced class gas turbine in North America, and the largest test of this kind to date.”
Georgia Power, the largest electric subsidiary of Southern Company, collaborated with Mitsubishi Power for the landmark testing as part of a continued commitment to new research and development to build the energy grid of the future and to reduce carbon emissions across its generation fleet, with Georgia Power having already reduced its carbon emissions by more than 60% since 2007.
The McDonough-Atkinson power plant site, located less than ten miles from downtown Atlanta, has served electricity customers for more than 80 years and was fully converted to natural gas in 2012. It currently operates six M501G series gas turbines, as well as three steam turbines running in three 2-on-1 combined-cycle blocks.
Mitsubishi Power completed the hydrogen blending on one 265 MW M501G gas turbine unit, building on a project commissioned by the New Energy and Industrial Technology Development Organization (NEDO), Japan’s
Left: Flow control skid (top) for hydrogen blending and pressure control skid (credit: Georgia Power)
18 | July/August 2022|
www.modernpowersystems.com
national research and development agency. Dry low NOx (DLN) hydrogen blending was successful at up to 20% at the designed 100% natural gas firing temperature, within emissions compliance for the existing air permit, and without impact on maintenance intervals. The team also confirmed improved turndown by testing up to 20% hydrogen at minimum emissions-compliant load.
Mitsubishi Power provided full turnkey service for this project including engineering, planning, hydrogen blending hardware, controls, commissioning and risk management. Southern Company’s industry-leading R&D organisation served as technical consultant on the project. The Southern Company team is engaged domestically and internationally in research focused on low-carbon hydrogen power generation, production, delivery, transportation, infrastructure and energy storage and leads demonstrations with the US Department of Energy covering the full hydrogen value chain. It “believes there is a compelling opportunity for hydrogen technology to deliver a sustainable energy future.”
EPRI researchers were on-site during the testing, and the organisation will publish a detailed report on the project and its findings later this summer.
Mitsubishi Power partnered with Certarus to source and manage the hydrogen supply.
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