Company handed penalty by Ofgem after using incorrect data to calculate the amount of electricity supplied to customers
German energy giant plans to install 144,000 panels on a former airbase in Oxfordshire
Rising cost of energy and green shoots in the economy should drive further investment in energy efficiency, say npower and EEF
Company's latest controversial report on rising energy prices warns bills could rise £200 this decade unless energy efficiency measures are embraced
Government says green generation support schemes will increase bill by just a third of the £30/MWh npower claims
Company details how it is looking to comply with EU emissions rules by closing seven fossil fuel power plants by 2023
Company announces it is to cut average annual bills by £50 following ECO changes
RWE npower announces it is to cut project to between 600MW and 900MW of capacity in pursuit of greater efficiency
Energy giant becomes the third major supplier to raise bills, as new study suggests Brits are 'bamboozled' by energy debates
Npower confirms coal plant converted to burn biomass is to close today