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dhaslam
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« Reply #1 on: August 31, 2011, 11:13:15 AM » |
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There seems to be quite a lot of water and good flow but the critical thing is the amount of fall between one boundary and the other. Can you measure the total fall?
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StationHouse
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« Reply #2 on: August 31, 2011, 11:34:52 AM » |
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Will do.
This is the river calm, after rainfall/winter it goes a bit nuts!
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dhaslam
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« Reply #3 on: August 31, 2011, 12:10:39 PM » |
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That little weir under the bridge should be able to give you a reading for the flow using a formula below. You will need to set up a formula in a spreadsheet because they use the height raised to 1.5 power. I think this is the calculation in litres per second for two metres wide and 10 cm high using the second formula. ROUND(1000* 0.35* 2*POWER(9.81,0.5)*POWER( 0.1,1.5),0) = 69 www.aquatext.com/calcs/weir flow.htm |
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DominicJ
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« Reply #4 on: August 31, 2011, 12:17:56 PM » |
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At first glance, no.
The Height differential is far more important than flow.
However, if across the stretch you own, there is a 10m drop, then you could have a significant energy source.
The river "going nuts" isnt that important, you wont be allowed to build a dam to control that, and smooth energy generation anyway.
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I'm not a hippie
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rondurrans
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« Reply #5 on: August 31, 2011, 12:46:27 PM » |
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Don't forget about the environmental impact of anything you want to do - you may(will) need to contact the EA..............  |
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StationHouse
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« Reply #6 on: August 31, 2011, 02:26:30 PM » |
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Great replies, over the next few days I'll have a go at working out flow rate. Working late tonight  Many thanks |
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StationHouse
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« Reply #7 on: October 17, 2011, 02:07:08 PM » |
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Been in touch with three companies regarding hydro. In their opinion it's a no goer...  |
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Richard Owen
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« Reply #8 on: October 17, 2011, 02:12:54 PM » |
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Been in touch with three companies regarding hydro. In their opinion it's a no goer... Because? |
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44 Yingli 230Wp panels feeding into 2x Solar Edge SE5000 inverters .20x 58mm SE, 20x 58mm SW, Solar Thermal feeding 320l thermal store. 10kW heat pump. 300W of Hydro Power . |
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StationHouse
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« Reply #9 on: October 17, 2011, 02:16:58 PM » |
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I would have to build a new bigger weir which in their opinion would not be allowed by SEPA. A famous distillery is also downstream...
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Richard Owen
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« Reply #10 on: October 17, 2011, 04:50:32 PM » |
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I'm sure the distillery would let you know when they're extracting water so you can make sure you aren't disturbing anything during that time.
Ask SEPA for their view. They will give you the maximum amount you are allowed to extract (I know you are only borrowing it for a short while, but the EPAs always view it as extraction.)
When you know how much they'll let you extract and you know the fall, you'll be able to tell how much electricity you can generate and whether or not its worth it.
I suspect that it would be possible to extract the amount of water allowed without building a bigger weir.
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44 Yingli 230Wp panels feeding into 2x Solar Edge SE5000 inverters .20x 58mm SE, 20x 58mm SW, Solar Thermal feeding 320l thermal store. 10kW heat pump. 300W of Hydro Power . |
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smegal
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« Reply #11 on: October 17, 2011, 06:30:43 PM » |
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Post up the drop. As said that is the most important part.
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"Hell, there are no rules here, we are trying to accomplish something." Thomas Edison
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guydewdney
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« Reply #12 on: October 17, 2011, 11:58:30 PM » |
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no goer - ie not worth THEIR while. even with a low head - say a 500w turbine - you would be amazed at the drop in your leccy bills per month..... but it would have to be totally DIY to be worth doing - what are your diy skills like?
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