Must be South facing.
This means it is unsuitable for some houses.
Can earn you money
Electricity made can be sold back to the electricity company
Zero carbon technology
Produces no harmful emissions
Repairs can be dangerous
This is because technicians must have access to the roof and is dealing with high DC voltages.
Produces less electricity at night.
This because it relies on sunlight.
Easy to install
High set-up costs
Good for the environment
Reduces your bills