MHPS Receives Order for Hydrogen-fired Gas Turbines From Power Plant in US

2020/03/19 16:59
Sousuke Kudou, technical writer
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The hydrogen-fired gas turbine (source: MHPS)

Mitsubishi Hitachi Power Systems Ltd (MHPS, Yokohama City) announced that it has received an order for 840,000kW-class hydrogen-fired gas turbine combined-cycle (GTCC) power generation facilities from an independent power producer (IPP) based in Utah, the US.

The GTCC power generation facilities will be built for the renewal of the facilities of a coal-fired power plant located about 140km to the southwest of Salt Lake City (capital of Utah). The power generation facilities will be owned by the IPP, Intermountain Power Agency (IPA), and managed by Los Angeles Department of Water and Power (LADWP), which is the largest shareholder of IPA.

The GTCC power generation facilities will start operation by using fuel with a hydrogen ratio of 30% (by volume) and are expected to eliminate up to about 4.6 million tons of CO2 per year. Electricity generated with the facilities are planned to be widely supplied to California and Utah. Also, they are aimed to be operated with a hydrogen ratio of 100% by 2045.

Through its US subsidiary, MHPS will supply two gas turbines from its Takasago Plant (Takasago City, Hyogo Prefecture) and a steam turbine and two generators from its Hitachi Plant (Hitachi City, Ibaraki Prefecture). The US subsidiary will procure and supply other facilities and auxiliary machines and conclude a 20-year long-term service agreement (LTSA).

The supplier of hydrogen has not been decided yet, but the Advanced Clean Energy Storage (ACES) project, which is being planned in Utah, is considered to be a powerful candidate. Hydrogen produced by water electrolysis using renewable energy such as solar and wind power will be stored in a salt mine managed by Magnum Development, a company that develops and manages salt caverns, and used for power generation, etc.

MHPS formed a partnership with Magnum Development in 2019 and aims to develop one of the world's largest-output energy storage facilities using only renewable energy. Its output is expected to be one million kilowatts.

Since the 1970s, MHPS has delivered gas turbines to about 30 power generation sites using hydrogen-containing fuel, and the total operation time of the power plants is more than 3.5 million hours. As for large-scale turbines, it established a mixed combustion technology for a hydrogen ratio of 30% by using its own combustor technologies.

Also, MHPS has been engaged in a project to renovate 440,000kW of natural gas-fired GTCC power plants so that they combust only hydrogen by 2025 in the Netherlands.