In england why dont we use our weir system to produce hydro electricty?

Question

In england why dont we use our weir system to produce hydro electricty?

Answer 1

Small scale hydro-electric power schemes used to be common in the Exmoor area. All of the older schemes have fallen into disuse following the introduction of the National Grid. Mains power tended to be more economical and the different voltage and, in some cases, direct current of the local stations menat that ordinary appliances could not be used. Modern inverters, however, can convert current and some parts of the dams, weirs and leats used for former power supplies can be re-used. Advances in low-head technology (where the fall in water is between 4 and 2 metres) also mean that sites that could not be used previously now can.

Why don't they?  That's a good question.  I'm actually perplexed that more "free" and renewable power sources aren't more readily used.  I wish they were.

-J

http://badhuman.wordpress.com

Answer 2

It is possible but it will depend on the design and purpose.

Some weirs are designed to reduce the impeding effect in specific directions.  Doing hydro may just interfere.

Answer 3

Chester weir on the river Dee was used for hydro- electric              power. Chester city station 1913> 1939. I would assume others were used and still are.