Reply to post: Re: Fag packet calculation time...

Full shift to electric vans would melt Royal Mail's London hub, MPs told

Anonymous Coward
Anonymous Coward

Re: Fag packet calculation time...

Add more hydro - there is lots of small scale hydro (essentially just making use of fast flowing rivers

Power output of hydro is proportional to the head and flow. Run-of-river turbines can only produce token amounts of electricity mostly because the head is a couple of metres at best, and the flows in most UK rivers are not large enough to be worth capturing. You can certainly do "powering the church hall" stuff using old mill races or modern equivalents, but at a national scale, rivers aren't a significant energy resource. Things don't get any better with large rivers - there were some experiments in Europe carried out by a company I worked for to try and capture energy from the Rhine using turbines attached to bridge piers - a dismal and ineffective failure.

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