CenterPoint blends green hydrogen with natural gas supply in Minnesota

Image: Twitter (@CenterPoint)

June 3 (Renewables Now) - Texas-based investor-owned electric and gas utility CenterPoint Energy Inc (NYSE:CNP) has switched on a 1-MW electrolyser in Minnesota to produce green hydrogen for blending with natural gas in the local distribution system.

The company said that the electrolysis equipment, which is made in the US and was installed on existing company property near downtown Minneapolis, runs on renewable power and is capable of producing up to 60 Dekatherms (432 kilograms) of hydrogen gas per day. It uses about two gallons of highly-purified water per minute, sourced from the municipal water supply.

The produced hydrogen is added in low concentrations, up to 5%, to the natural gas in a low-pressure section of the company's local distribution pipeline system.

"With this pilot project, we are exploring the potential of green hydrogen as a safe, zero-carbon energy resource that can be delivered through our local gas distribution systems to benefit both our customers and the environment," said Scott Doyle, Executive Vice President, Utility Operations.

The utility serves about 900,000 residential and business customers in the state of Minnesota. It has set a goal of achieving Net Zero by 2035 for direct emissions resulting from its own operations and energy use. Scope 3 emissions are to be reduced by 20-30% by the same year.

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