SGH2

Washington DC-based waste-to-hydrogen company SGH2 Energy will supply 3,850 tonnes of “greener-than-green” H2 annually to two of California's largest owners and operators of hydrogen refuelling stations under a ten-year contract.

SGH2 claims the deal, whose financial terms were not released, is the first and only long-term green hydrogen off-take agreement thus far globally. “The world is moving to green hydrogen, and we aim to accelerate that process,” said SGH2 CEO Robert Do.

The carbon-negative H2 will be produced from biogenic waste and biomass at the company's planned production facility in the City of Lancaster north of Los Angeles. The hydrogen is said to be carbon-negative because the waste would otherwise rot in landfills and emit methane, a greenhouse gas 84 times more potent than CO2 over a 20-year period. 

It thus calculates its carbon intensity as negative 188kg of CO2 equivalent per megajoule, compared to 20kg for coal-derived H2 and zero for standard green hydrogen - link