TTIP: what does the transatlantic trade deal mean for renewable energy?

Trade partnership between the EU and US could remove barriers facing the green energy sector, but experts warn of potential dangers

In July the transatlantic trade and investment partnership (TTIP) came a step closer to reality. Formal talks have been ongoing for two years, but trying to create the world's biggest free trade zone is no mean feat. Essentially, if passed, the EU and US will be able to trade without each other's pesky tariffs or regulations getting in the way.

David Cameron is a big advocate, arguing it could add 10bn to the UK economy. Many others, meanwhile, criticise the undemocratic nature of the closed-door talks and sinister influence of powerful lobbyists.