If it’s directly usable at point of generation in time and space. There’s also applications sensitive to energy density of storage (aviation, ships, long dista

If it’s directly usable at point of generation in time and space. There’s also applications sensitive to energy density of storage (aviation, ships, long distance trucking) that benefit greatly from hydrocarbons. We also have a huge amount of infrastructure built to burn hydrocarbons that could continue to be useful.