The overall costs of photovoltaic panels in the UK
Are Solar Panels Worth the Financial Investment (4kW System for Instance)? as a typical PV system in a UK residence.
It has an output of 3,400 kWh annually, the cost;
(Depends on many factors such as type of panels, inverter, single or split two string systems, installation, roof type, access).
If you compare the cost to the ordinary yearly power intake of a home, which is around 3,200-4,100 kWh, photovoltaic panels can cover 83-106% of your electrical power demand in best performance situations.
Nevertheless, this depends upon sunlight hours and power usage. On top of that, with rewards like the Smart Export Guarantee (SEG), you can even generate income for excess energy exported back to the grid!
So, even if it needs an investment upfront, investing in solar power can have a terrific return over time.