*Can work continuously.
*Few power stations needed to supply a large number of houses.
====Disadvantages====
*Cost of fuel.
*Produce Carbon Dioxide contributing to global warming.
*Other pollutants produced which can harm health or produce acid rain.
*Coal will run out.
==Key Stage 4==
===Meaning===
[[Coal]] is a [[solid]] [[Fossil Fuel]] formed in an [[anoxic]] environment from [[decompose]]d [[Plant|plants]].
===About Coal===
: [[Coal]] is a [[Non-renewable Energy Resources|non-renewable energy resource]].
: [[Coal]] has [[energy]] in its [[Chemical Potential Energy Store|chemical potential energy store]] which can be [[Energy Transfer|transferred]] into a [[Thermal Energy Store|thermal energy store]] by [[combustion]].
: [[Coal]] [[product|produces]] [[Carbon Dioxide]] during [[combustion]] which [[scientist]]s have shown contributes to [[Global Warming]].
===Power===
: [[Coal]] can be used to provide [[power]] directly buy burning it in homes, steam engines and furnaces or it can provide [[power]] by generating [[electricity]].
: A [[Coal]] [[Power Station]] [[Energy Transfer|transfers]] [[energy]] from the [[Chemical Potential Energy Store|chemical potential energy store]] of the [[coal]] to our homes by [[electricity]].
{| class="wikitable"
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|[[File:CoalPowerStationDiagram2.png|center|600px]]
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| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a [[coal]] [[power station]].
|}
: 1. Coal is burned in a furnace.
: 2. Water is heated in a boiler by the burning coal.
: 3. Water turns to steam and passes down pipes to turn a turbine.
: 4. The turbine causes a generator to spin.
: 5. The generator makes an electrical current.
====Advantages====
*Can work continuously.
*Few power stations needed to supply a large number of houses.
*Power supply can be varied depending on demand.
====Disadvantages====