Plug Power's shares saw a significant increase after news that the Federal Energy Regulatory Commission turned down a request to boost power supply from a nuclear plant to an Amazon data center, possibly opening a new market opportunity for the company. The Pennsylvania nuclear plant, now under Talen Energy, was aiming to raise power capacity for an AWS data center, highlighting a potential demand for clean energy solutions. Meanwhile, Plug Power is actively developing a hydrogen ecosystem using electrolyzers to produce green hydrogen for industrial applications. Recent agreements with an Australian company to provide electrolyzer capacity for ammonia production signify the company's commitment to sustainable energy solutions. While data center operators are exploring options like nuclear and modular reactors for power supply, Plug Power's electrolyzers offer an environmentally friendly alternative. Despite the current challenges of cost and profitability in the hydrogen ecosystem, investors are optimistic about Plug Power's future prospects in the data center power market.