A deal to build Britain's first new nuclear plant in a generation is due to be announced today.
The government has been in negotiations with French-owned EDF Energy over the Hinkley Point C project for more than a year.
However, ministers are now believed to have agreed on a "strike price" - the guaranteed rate to be paid for electricity produced at the Somerset site.
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The Met Office has weather warnings in place for snow and ice until 10am in the north and west.
The plan, which would effectively strip banks of the benefit of recent corporation tax cuts, forms part of the party's election manifesto.
Pop star went into the icy waters of Chicago's Lake Michigan at a fundraiser for the Special Olympics and later said "her weave froze".