Caspian water use for hydrogen raises cost, says Azerbaijani official

Using water from the Caspian Sea for hydrogen production involves additional expenses, according to Rana Humbatova, Deputy Director of Azerbaijan's State Agency for Renewable Energy Sources, Report informs.

Speaking at the "Green Energy Week 2025: Azerbaijan and Central Asia" event in Baku, Humbatova emphasized the importance of water efficiency in hydrogen research, particularly for Azerbaijan.

"Our study shows that Caspian Sea water can be used. Yes, it is brackish and not soft, so it requires treatment, which leads to extra costs," she stated.

She also pointed out the issue of brine disposal. "You can't simply discharge the brine back into the Caspian Sea, which is already facing numerous environmental challenges," Humbatova noted.