US is getting gassier but greener Sign up for Reuters newsletters Power Up Power Up By Andy Home, Senior Metals Columnist Welcome to Power Up! In today's issue we look at how rising trade tensions between the United States and China are spilling into the lithium-ion battery space. China is the world's dominant supplier of graphite, used as the anode in batteries, and it has just tightened controls on exports of the critical material to the United States. It's an ominous warning shot. Also in today's issue, why U.S. power is becoming gassier but cleaner , how the U.S. solar sector is preparing for a Donald Trump presidency and the company looking to use biomass to power the planes of the future. Top energy headlines Fuel theft, violence siphoning $215 million from Ecuador oil industry Rosneft, Reliance agree biggest ever India-Russia oil supply deal, sources say Ib...