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Elon Musk’s replacement as the chair of Tesla has been named and it is Robyn Denholm, an Australian executive who has been a director with the electric vehicle firm since 2014. Denholm is currently CFO of Australia-based telco Telstra and she’ll step into the breach once a six-month notice period is served, Tesla said in an announcement  released late Wednesday evening U.S. time. There’s been plenty of speculation as to who will replace Musk — the figurehead of Tesla’s business — after he announced in September that he would step down as the firm’s chairman. Musk’s resignation was part of a settlement with the SEC, which found Tesla guilty of failing to require disclosure controls and procedures relating to a tweet from Musk about taking the company private. Tesla later confirmed it would remain a public entity  despite Musk’s tweets. The SEC deal included a $20 million fine for Musk who retained his position as CEO and the confidence of the board. Denholm was extensive experience ...

Because solar and wind power are  now cheaper to produce than energy from fossil fuels , the only obstacle that remains to the mass adoption of renewable power is the amount of money utilities need to spend to store the energy those systems produce. Right now, storing 100 megawatts of renewable energy (enough to power roughly 600,000 homes) means spending roughly $65.6 million on massive batteries like the kind made by Tesla, or relying on huge pumped hydro-electric storage projects that essentially create man-made dams where the release of water spins turbines to generate energy (those projects are typically far larger than 100 megawatts). A new company called  Energy Vault , launched from Bill Gross’ Idealab incubator in Pasadena, Calif., has developed a technology, based on the principles of pumped hydro storage, that it claims can slash the cost of energy storage to a fraction of the current price and make renewable energy cost-effective all day, every day.  As climate change worr...