$BE has proven that solid oxide fuel cells can scale with data centers, helping drive its valuation to around $20B. $FCEL also has SOFC technology but is prioritizing MCFC. That focus delivers power and cooling today using already available competitively priced natural gas while capturing carbon, putting it on a quicker path to profitability. Later, $FCEL can transition to hydrogen as costs come down in the next five to ten years.
$PLUG and $BLDP remain centered on PEM fuel cells, which need hydrogen to become cheaper and more widely available before they can serve as more than backup power. With a market value under $500M, $FCEL stands out as the most overlooked bridge between the natural gas economy of today and the hydrogen economy of tomorrow.