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Long-term storage of energy is a difficult technical problem that limits the usability of renewable sources of energy to replace traditional fossil fuel sources
1
vote
why ammonia is not a competitive energy carrier?
Ammonia is also toxic, tricky to handle and burning it is going to generate a whole bunch of the same nitrous-oxides you get from fossil fuels.
3
votes
How many grams of explosive are equivalent to the energy in a battery?
A battery's energy capacity is normally quoted in Amp hour, (or $\rm mAh$) the number of amps it could (in theory) supply for an hour. If you multiply this by the voltage you get energy.
Specifically …