The total amount of money generated from the auction, overseen by the Department of Energy and Climate Change (DECC), was less than had been expected by some analysts.

During phase II of the EU’s ETS, countries are permitted to auction up to 10 percent of their national allocation, broken down into EU Allowances (EUAs). The UK intends to auction 7 percent of its EUAs, or around 85 million in total -- equivalent to 85 million tons of carbon dioxide.

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