Posted by
Sarah Green on Dec 21st, 2011 in
Coal |
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Electricity is mostly generated at an amount that meets what is demanded, as it is tricky to store surplus energy. Nevertheless it’s feasible to store smaller quantities of energy for personal and domestic uses. Batteries and fuel cells both produce electricity by employing electrochemical reactions. Flywheels store energy as they spin.
The battery
A convenient store of energy is the electrical cell or...