Two outfits, one in Germany and one in the US, are chasing a goal of supplying long-term subsea power in remote locations, via fuel cells, to users including oceanographic observatories to underwater vehicles. Elaine Maslin takes a look.Long term operation of subsea equipment or instruments in remote locations poses something of a challenge. While battery technology has improved vastly, it鈥檚 still not sufficient for long term deployments鈥
