Sydney Morning Herald: HOUSEHOLDS will pay an extra $600 on their electricity bill over six years to cover the $2 billion cost of the failure of the state government’s overly generous solar power scheme. If elected in March, the opposition will have the scheme, which runs to the end of 2016, reviewed by the auditor-general so that it can decide on its future. From midnight last Wednesday, the government slashed from 60¢ to 20¢ per kilowatt hour the tariff paid to households installing solar panel systems…