Power supply and generation. There are exciting hints on other websites of chartered manager degree apprenticeships and power engineering degree apprenticeships, but on E.On's own website the degree apprenticeship lights are off. A Utility: a safe, steady, efficient long-term employer. If those are attractive words for you, then this should be a good place to learn your business or engineering trade.
This is another company who do not run a scheme at present but are looking into it for the future. You might have to watch this space for quite a long period as they gave us no clue about any timescale.