Welsh home installs UK's first Tesla Powerwall storage battery

Battery could revolutionise UK energy market by enabling people to store excess energy generated from rooftop solar panels

The setting is decidedly modest: a utility room in a red-brick house at the end of a cul-de-sac in Wales. But if the hype turns out to be right, this may be the starting point for an energy revolution in the UK.

Householder Mark Kerr has become the first British owner of a Tesla Powerwall, a cutting-edge bit of kit that the makers say will provide a "missing link" in solar energy.