All Questions
Tagged with renewable-energy batteries
6
questions
1
vote
1
answer
102
views
Why does pumped hydro require reservoirs for efficient energy storage?
The problems with using pumped hydro as a long term battery are:
Hard to find locations physically suited for an extreme height gradient for two massive reservoirs (main issue).
Water evaporates, so ...
- 1,821
4
votes
3
answers
2k
views
Why aren't gravity batteries everywhere? [closed]
The problem of energy storage, especially with regard to renewables, remains unsolved. Or at least there do not seem to be any popular solutions.
Why not gravity batteries?
I love the idea, and ...
- 167
17
votes
3
answers
481
views
Theoretical physics for better batteries?
It is Earth day, so I started thinking about the theoretical physics problems that could help reduce greenhouse-gas emissions and fight climate change.
We actually have a reasonable range of ways to ...
- 20.4k
0
votes
1
answer
47
views
Why is Alternative energy most commonly stored in metal acid batteries? [closed]
Why is alternative energy most commonly stored in relatively expensive metal acid batteries, which have a short life, rather than hydrogen gas accumulated through electrolysis?
Hydrogen is a ...
- 143
2
votes
2
answers
129
views
Why are large batteries described by their power?
Reading about renewable energy sources, I came across the idea to use huge batteries as a temporary storage to be able to deal with the fluctuations that e.g. solar panels might produce.
The most ...
- 325
1
vote
5
answers
113k
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Charging 12V 150Ah battery [closed]
I want to charge a 12V battery of 150Ah with a solar panel. The solar panel specs is
12V, 25 Watt.
Can anyone please provide me how to calculate that how much time it will take to charge the battery? ...
- 149