Hydrogen stocks, including Bloom Energy (BE), Plug Power (PLUG), FuelCell Energy (FCEL), and Nikola (NKLA), have experienced a significant rally due to the Biden administration's announcement of new rules facilitating tax credits for green hydrogen production. The revised criteria allow green hydrogen producers to access a $3 per kilogram tax credit until 2029 by demonstrating renewable-powered production annually, shifting to hourly verification starting in 2030. Furthermore, companies can now leverage up to 200 megawatts from struggling nuclear plants and certain fossil fuel plants equipped with carbon capture systems while remaining eligible for the tax credit. Industry feedback, as expressed by the President and CEO of the Fuel Cell and Hydrogen Energy Association, Frank Wolak, has been positive, acknowledging the enhancements made and emphasizing the need for detailed evaluation by project developers. Despite the optimism surrounding hydrogen stocks, the author of the article suggests that greater returns may be found in AI stocks, highlighting alternative investment opportunities. Additionally, the article provides insights on a report about the cheapest AI stock for interested investors to explore. The author discloses ownership of shares in Plug Power (PLUG) without any immediate trading intentions, with the article originally published at Insider Monkey.