the French are funding it (perhaps)
"the only way to get the French and Chinese to pay for construction is if we promise to pay them more than double the current market rate per kWh"
Even that's not enough for the French (state owned, nearly, EdF) who a few days ago have once again postponed a decision on whether to go ahead with Hinkley.
Hitachi (involved in other bids) have noticed this too and appear to be playing the "pay us even more, or else" rule.
e.g.
http://www.telegraph.co.uk/finance/newsbysector/energy/12128405/Hinkley-Point-nuclear-fiasco-spooks-Hitachi-boss.html