It believes its network's architecture makes it inherently robust, but the director of safety sustainability and reliance, Chris Train, said the new Met Office service was invaluable.
"It's fantastic that we now have these forecasts in the UK. Getting a space weather warning allows us to reconfigure the grid to reduce the loading on any vulnerable transformers. It really does help us to get our operational mitigation in place."
Scientists recall a particularly powerful event in 1859. Described by the English astronomer Richard Carrington, this outburst buffeted the Earth, producing spectacular auroral lights right across the globe. It is said that electric fields generated in wires caused fires in some telegraph stations.
Lloyds of London, the insurance market, completed a study in 2012 that examined how the US power grid would cope with another Carrington event.
It concluded that the damage to critical transformers could leave some consumers with no networked electricity supplies for a period between 16 days and anywhere up to two years, resulting in economic losses that run from $0.6 trillion to $2.6 trillion.
"Things like satellite navigation and power grids represent critical nodes in the world economy, and if they are taken out even for a short time, the impacts can be immense," said Lloyds' Nick Beecroft.
"In the case of floods, hurricanes and other natural hazards here on Earth, the last 25 years have seen a revolution in the understanding and management of risk, thanks to science and computer modelling.
"Space weather is one of those emerging risk areas where we now need to make similar advances."