With existing technology hydrogen can be made by simply combining electricity and water. The process works even better with salt water. The hydrogen can then be stored for use when solar or wind is not available, or it can be transported for use elsewhere.
Energy from the power plant can also be used to process water. Since there is virtually an endless supply of power and salt water, the plant could generate huge amounts water. The Imperial Valley would be the most logical place to distribute the water since it is a huge farming area and is in the immediate vicinity of the Salton Sea. This would significantly ease the demand from our over burdened water system and allow more water for northern California and Arizona. In theory this could eliminate the need for Los Angeles, Riverside and San Diego counties to draw water or power from northern California.