The world's largest lithium ion battery has begun dispensing power into an electricity grid in South Australia. The 100-megawatt battery, built by Tesla, was officially activated on Friday. It had in fact provided some power since Thursday due to demand caused by local hot weather. South Australia has been crippled by electricity problems in recent times. Tesla boss Elon Musk famously vowed to build the battery within 100 days -- a promise that was fulfilled.
Donald Trump has responded to a guilty plea by his former national security adviser Michael Flynn, saying Mr Flynn's actions as a member of his transition team "were lawful". read more
Time Magazine is disputing US President Donald Trump's account of how he rejected a request for an interview and photo shoot ahead of its Person of the Year issue. read more
Facebook plans to let people see if they had "liked" pages created by "foreign actors" to spread propaganda during the US presidential election.
The social network has previously said as many as 126 million Americans may have seen content uploaded by Russia-based agents over the past two years. read more
Nebraska regulators have approved the Keystone XL pipeline, clearing the way for the controversial and long-delayed project to progress. Commissioners voted 3-2 in favor of the project, which will link Canada's oil sands to US refineries. Commissioners voted 3-2 in favor of the project, which will link Canada's oil sands to US refineries. The decision comes days after a leak in the existing Keystone network spilled 210,000 gallons in South Dakota. ... Former President Barack Obama had rejected the project in 2015 on environmental grounds, but President Trump reversed the decision earlier this year.