The current subsidy system for on-shore wind energy in Northern Ireland is set to end next April, a year earlier than planned.
Enterprise Minister Jonathan Bell has started a two-week consultation on the proposal.
He had previously said he would maintain the subsidy system until 2017.
However, he said that changes in UK policy now mean that keeping it until 2017 would impose extra costs on consumers.
The subsidy system for renewable energy is being radically scaled back by the Conservative government.
Energy policy is devolved to Stormont, but decisions taken at Westminster are having a knock-on effect.
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