I often see posted about how covering a relatively small area in a desert with solar panels could power the world – but transferring that energy is too difficult. Why can’t we just use that to charge batteries and ship them places/ everywhere?
In: Physics
Lithium Ion batteries have approx 0.25kWh/kg energy density.
1 liter of diesel (which still has to be converted to electricity) has 10kwh/l energy density. At 25% efficiency that’s about 10x more energy in a liter diesel than in a kg of battery.
They’re just not that “size efficient” yet.
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