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9I Buying energy


 * ammeter || energy resources || mains electricity || Sankey diagram ||
 * amp (A) || fossil fuels || National Grid || strain energy ||
 * atomic energy || generate || natural gas || thermal energy ||
 * biofuel || generator || nuclear energy || transfer ||
 * cell || global warming || payback time || turbine ||
 * chemical energy || gravitational potential energy || potential energy || useful energy ||
 * component || hydroelectricity || power || voltage ||
 * efficiency || in parallel || power pack || voltmeter ||
 * elastic potential energy || in series || power rating || volts (V) ||
 * electric current || infrared radiation || pumped storage || wasted energy ||
 * electrons || kinetic energy || renewable resource || watts (W) ||
 * energy payback time || law of conservation of energy || resistor ||  ||