Thought this was interesting..
www.socialeurope.eu/2016/06/the-brexit-paradoxes-energy/
"So as a final paradox, Brexit would not in reality resolve the core issues of security, affordability and sustainability: like the Referendum itself, a vote to leave would simply expose the underlying dilemmas more sharply. The more we sought to distance ourselves from EU energy and environmental policies, the tougher the trade-offs would be in terms of costs – economic, environmental, and/or security. Were the UK to leave the EU, we could rail against a European Energy Union that might become more centralised without us: but the greater our policy distance, the less we could influence, and the less our potential gains from cooperation on all three dimensions."