Addis Energy

Addis Energy is a Somerville, Massachusetts climate-tech company turning the Earth's subsurface into a chemical reactor to make ammonia. By injecting nitrate-bearing water into iron-rich underground rock, its process uses natural heat and pressure to convert nitrogen into ammonia without hydrogen feedstock, added electricity, or CO2 emissions. Spun out of MIT research and paired with deep oil-and-gas engineering experience, the company aims to produce clean ammonia - a fertilizer and potential fuel behind more than 1% of global emissions - at a fraction of conventional cost.