Fuel Cell Generator Market – Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Fuel Type (Hydrogen, Ammonia, Methanol), By Type (AFC, SOFC, and PEMFC), By Size (Small, Large), By End User (Data Center, Agriculture, Emergency Response Generator, Construction, Marine, and Aquaculture), By Region, By Company and By Geography, Forecast & Opportunities, 2018-2028