The heart of Boston-based SCS Energy’s proposed Hydrogen Energy California is a unit that heats up coal mined in New Mexico and petroleum coke produced at refineries in Los Angeles. It separates and captures the resulting hydrogen and carbon dioxide gases. The hydrogen would be burned in a turbine to produce power and the carbon dioxide compressed and piped to Elk Hills. There, Oxy would inject it to squeeze an estimated 180 million additional barrels of oil out of the ground over the next 30 years. Another unit would make nitrogen-based chemicals, including fertilizer. Revenue from the project would break down as follows: -Occidental would get $15 billion of added income selling the additional oil, or an estimated $400-$500 million annually. It purchased the Elk Hills field, formerly known as the Naval Petroleum Reserve, from the federal government for $3.65 billion in 1998. SCS estimates the carbon dioxide injection would mark up to a 30 percent boost in petroleum output there for Oxy. -Sales of fertilizer and other chemicals would bring $350 million annually for the plant operator. Products would include urea, ammonium nitrate, and anhydrous ammonia. -Revenue from electricity would equal another $350 million/year. The plant could ramp up and down between a baseload supply of about 200 MW to a peak supply to the grid of 300 MW. It would use an additional 105 MW for onsite operations.