Chinese electrolyser manufacturers Sungrow Hydrogen and CRRC Zhuzhou have secured electrolyser supply contracts for the first phase of a geothermal-powered hydrogen and ammonia project in Olkaria, Kenya, developed by Chinese firm Kaishan Group.
Kaishan signed a steam supply agreement with state utility KenGen in October 2025, under which KenGen will supply steam from existing geothermal wells for Kaishan to generate 165MW of electricity to power the electrolysers. Chinese firm Wuhuan Engineering is serving as engineering, procurement and construction contractor. Works on the site began in November 2025.
Sungrow will supply 16 alkaline electrolysers rated at 1,000 Nm³/h each, while CRRC will provide eight units of the same rating, giving phase 1 a combined capacity of 24,000 Nm³/h, or around 120MW. This is sufficient to produce roughly 19,000 t/yr of hydrogen assuming continuous operation, which will be converted to the 100,000 t/yr of ammonia planned for phase 1.
Kaishan plans to scale to 200,000 t/yr of ammonia at full build-out, with output processed into 480,000 t/yr of green fertilisers comprising 180,000 t/yr of urea and 300,000 t/yr of calcium ammonium nitrate. Kenya's government will offtake the fertiliser for distribution to local farmers to reduce import dependence. Total investment stands at around $800mn, with annual revenues projected at $220mn-250mn over a 25-year operating life, Kaishan said previously.
Geothermal power offers a significant advantage for electrolytic hydrogen production, with capacity factors of around 90pc enabling near-continuous baseload operation without the intermittency or energy storage costs associated with solar and wind. Kenya's energy department estimates the country holds 10GW of geothermal potential, with only around 950MW of installed capacity to date.
Chinese electrolyser makers have been increasing their equipment exports in recent months, supplying to projects in Europe, Middle East and Asia-Pacific. Sungrow delivered 160MW of alkaline electrolysers to Acme's green ammonia project in Oman, a 3MW containerised PEM system for Italy's MW-scale solar-to-hydrogen project, and a containerised alkaline system to a green hydrogen blending project in Brazil.
