We have entered R&D grid-independent hydrogen production since the end of 2019 from customer inquiry. One of our customers in Iowa wants to use wind power to produce hydrogen directly without grid power support. We searched all suppliers of electrolyzers globally. But it failed, and then we started to research grid-independent hydrogen production solutions. This solution was proved by a 600watts grid independent electrolyzer with 14 electrodes. The core tech is that each electrode in electrolyzers can be controlled by cutting in/cutting off in series connecting according to the power changing from wind/solar. The patent has been applied and is pending.