6. Mains electricity-cost of electricity

Electricity

A form of energy that powers lights and appliances

Watt

A measure of how much energy an appliance uses

Kilowatt

One thousand watts

Geyser

An appliance that heats water and uses a lot of electricity

Infrastructure

The structures and systems needed to provide electricity

Fossil fuels

Non-renewable energy sources like coal and oil

Conservation

The act of saving or protecting something, like electricity

Appliance

A device or machine used in homes, like a fridge or TV

Energy-efficient

Using less energy to do the same job

Renewable energy

Energy from sources that don't run out, like the sun or wind

Power station

A place where electricity is generated

Greenhouse gas

A gas that traps heat in the Earth's atmosphere

Carbon dioxide

A greenhouse gas produced when burning fossil fuels

Solar power

Energy from the sun used to make electricity

Standby mode

When an appliance is off but still using a small amount of power