Edison gets approval for solar plants
The California Public Utilities Commission approved the 20-year contract between Rosemead-based Edison and eSolar Inc., a Pasadena-based renewable energy start-up financed by Google.org, Idealab and Oak Investment Partners. The contract calls for Edison to purchase up to 245 megawatts of electricity from solar power plants built by eSolar in the northern Antelope Valley.
The power plants will use mirrors to focus sunlight on towers containing water. The water is heated and turned into steam, which powers turbines and generates electricity.
The first of these solar power plants is set to come online in early 2012.
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Bitcoin consumes 'More electricity than Argentina' - Cambridge
LONDON - "Mining" for the cryptocurrency is power-hungry, involving heavy computer calculations to verify transactions.
Cambridge researchers say it consumes around 121.36 terawatt-hours (TWh) a year - and is unlikely to fall unless the value of the currency slumps.
Critics say electric-car firm Tesla's decision to invest heavily in Bitcoin undermines its environmental image.
The currency's value hit a record $48,000 (£34,820) this week. following Tesla's announcement that it had bought about $1.5bn bitcoin and planned to accept it as payment in future.
But the rising price offers even more incentive to Bitcoin miners to run more and more machines.
And as the price increases,…