Big energy users have warned changes to the Rudd government's renewable energy target threaten to cost them millions by pushing up the price of electricity.
Aluminium Council executive director Miles Prosser said changes to the scheme threatened higher energy costs, shifting the risk on to large energy users.
Last month the government announced that from January 1 next year the renewable energy target scheme would be split into two -- the first paying a fixed price of $40 per renewable energy certificate to small sources such as home solar panels, and a separate market-traded scheme covering large projects such as wind farms, commercial solar and geothermal.
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