Invisible systems
Electricity
A form of energy that can carry power from a generator to everyday life.
Electricity is a secondary energy source: we produce it by converting other sources of energy. Networks deliver it to homes and businesses.
A closer look
The picture, in three parts.
Convert
Generation turns another energy source into electrical energy.
Deliver
Networks carry electricity towards users.
Use
Devices turn electrical energy into useful work, light or heat.
Where could this take you next?
Sources & further reading +
Short explanations, grounded in published sources. Follow the originals for depth and context.
Sources checked: 10 September 2026. Visuals are illustrations, not documentary evidence.
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