Much of the value of today's nuclear deal will be judged on the "strike price" agreed - a pre-arranged price at which the Government ensures producers will be paid for the electricity they generate.
The Government confirmed that that strike price would be £92.50 per megawatt hour (around double the current rate) fixed over 35 years but rising in line with the CPI inflation rate.
That price drops to £89.50 if a deal for another new nuclear plant at Sizewell C is agreed.
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PM spokesman's comments come following reports that the EU is secretly drawing up plans for greater military cooperation across the EU.
The Labour politicians put their alleged differences aside to jointly highlight how remaining in the EU could help fight climate change.
Late sunshine here and there this evening - but more cloud for southern Scotland, northern England and Northern Ireland again.