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
Donald Trump has blamed 'radical Islamic terrorism' for UK's 13% rise in crime.
Theresa May said she is "ambitious and positive" for a Brexit deal as EU leaders gave the go ahead for preparations for second phase talks.
Merseyside Police have launched an investigation after crowd trouble at Goodison Park - during which a fan appeared to attack a player.