This is a .PDF document from the CPUC about LADWP’s future plans for converting the IPP coal fired power plant in Utah to a solar and wind generating facility, a green hydrogen generation and underground storage site, replacing the coal plant with CCGTs – combined cycle gas turbine generators that will run on hydrogen, and a CAES (compressed air energy storage) pilot plant.
The majority of the hydrogen will be generated during spring and fall months when there is an excess of electricity. This hydrogen will be stored in underground salt caverns and used during months of peak electricity usage in the summer and winter.
The Intermountain HVDC line to California is bidirectional so any excess power from So. California or nearby can be sent to the IPP for hydrogen generation and storage.