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| 'Cheaper energy bills' proposed | 'Cheaper energy bills' proposed |
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| Energy companies will be banned from charging "unjustified" prices under new rules proposed by the regulator Ofgem. | Energy companies will be banned from charging "unjustified" prices under new rules proposed by the regulator Ofgem. |
| Prices, including those for pre-payment meters, will have to be "objectively" justifiable under new conditions. | |
| Ofgem started the investigation in February 2008 after all the leading suppliers imposed big price rises. | Ofgem started the investigation in February 2008 after all the leading suppliers imposed big price rises. |
| It has been looking for evidence of collusion among suppliers and to see if the wholesale markets in which gas and electricity are traded are working. | It has been looking for evidence of collusion among suppliers and to see if the wholesale markets in which gas and electricity are traded are working. |
| Ofgem had previously said that there was no evidence of collusion between the "big six" suppliers in setting prices. | Ofgem had previously said that there was no evidence of collusion between the "big six" suppliers in setting prices. |