National Grid has just told me that gas demand is up 100 million cubic meters from the seasonal norm - which is equivalent to heating an extra seven million homes.
Usually gas demand at this time of year is 270 million cubic meters, but the actual demand today is 370 million cubic meters.
It has pushed up wholesale prices from a norm of 70p to around £1.
More top news
The system is said to be capable of destroying enemy missiles travelling at supersonic speeds.
The daughter of former Russian spy Sergei Skripal dominates the papers after making an emotional statement about her and her father’s poison
Weinstein is under criminal investigation in Manhattan, Beverly Hills, Los Angeles and London.