Solar panels have gotten so cheap that the plant, born of an old attempt at harnessing the power of the sun, appears to be obsolete.

When deciding if it's worth installing solar panels, you may want to know when they will start saving you money.

Scaffolding and labour prices have also risen ... A typical three-bed home will need about 10 solar panels which need 20 square metres of space. If you want more power, you will need more panels.