link - https://www.fool.com/investing/2020/01/28/fuel-cell-stocks-what-you-need-to-know-now.aspx)
Among 5 things, this is the killer:
"Passenger vehicles have been a flop ... Even the most hardened fuel cell believer (Toyota) is now investing in more electric vehicles (EVs) to launch over the next five years. "
The positive:
"Fuel cells ... do make a lot of sense for long-haul transportation like trucking."
The killer for long-term investors:
"... Plug Power, FuelCell Energy, and Ballard Power Systems have all reported consistent losses over the past decade. "