The proposal has already been criticised by Green groups as too lax. Meanwhile, Gabriel’s coalition partner, Chancellor Angela Merkel’s Christian Democrats (CDU) as well as utilities, claim it would push up power prices and endanger jobs.

The energy minister is from the Social Democrats (SPD), the smaller partner in Berlin’s coalition government.

Gabriel has sent a first draft proposal seen by Recharge to the parliamentary groups of the coalition that includes the measure, which aims to reduce German CO2 emissions by an additional 22 million tonnes of CO2 by 2020.

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