Understanding Electricity Generation, Transmission, and Distribution

Flashcards covering key concepts related to the generation, transmission, and distribution of electricity.

What are the main sources of renewable energy in the UK?

Wind, solar, hydropower, and bioenergy.

What are the non-renewable energy sources?

Coal, fossil fuels, and nuclear power.

Why are renewable energy sources generally preferred?

They are cleaner, greener, and cheaper compared to non-renewable sources.

What happens after electricity is generated?

It is sold on the wholesale market to energy suppliers.

What is the function of the electricity transmission network?

It carries electricity at high voltage across the country from generation sites to distribution points.

Who owns the electricity transmission network in England and Wales?

The National Grid.

What is the role of distribution networks?

They connect transmission networks to communities, lowering high voltage electricity to safe levels for use.

What does a distribution network operator manage?

They manage poles, pylons, cables, and substations in a local region.

What is the safe voltage used in homes after distribution?

Lowered voltage, often around 400/230V.

What is the benefit of stepping up voltage during transmission?

It reduces current for the same amount of power, minimizing losses.

What connection exists between the UK and France for electricity transmission?

A d.c. transmission line is used to remove normal a.c. losses.