davidroberts30
Member
- Location
- pembrokeshire
You carry on I'm learning tooSo if you have say 1-3kw output would 12 mm be ok for 300 m possibly?
Sorry to ask questions on someone's thread!
You carry on I'm learning tooSo if you have say 1-3kw output would 12 mm be ok for 300 m possibly?
Sorry to ask questions on someone's thread!
It’s still serviceable I’ve just had a few problems with it lately and it’s not been performing as well as I would have hoped.End of life, surplus or dealer?
Yes have got a Fit contract. I have thought about installing a bigger one.Do you have a Fit contract on it? Even if it doesn't work there is still value on the site.
Thats assuming the voltage is 240. I am not familiar with Domestic turbines but some of the smaller ones can be 12 volts and the voltage drop at that distance would be dramatic.16mm2 SWA would keep the volt drop under 5%
You cannot put in a larger one if you want to continue to receive the FITs only like for like and even then you should be a little carefulYes have got a Fit contract. I have thought about installing a bigger one.
sorry, your absolutely correct, i should have said thatThats assuming the voltage is 240. I am not familiar with Domestic turbines but some of the smaller ones can be 12 volts and the voltage drop at that distance would be dramatic.
Does not have to be a stream. Pond with height difference just as good.Still a problem there....no water
Well not in a stream anyroads
Not a problem its just down to cable size.With voltage drop would 300m away Stream/ brook, be useless?
Only puddles hereDoes not have to be a stream. Pond with height difference just as good.
Do you have significant height difference between areas of land.Only puddles here
Not reallyDo you have significant height difference between areas of land.
Does not have to be a stream. Pond with height difference just as good.
Those diversion pre swirl chambers really increase water power apparentlyHow big a stream is needed for it to be worthwhile? I thought you needed a few M drop to generate the force required to power anything economically?
Quite simple, if you have 1 cubic foot per second and a vertical drop of 20 feet, then you have the potential to produce 1kw.How big a stream is needed for it to be worthwhile? I thought you needed a few M drop to generate the force required to power anything economically?
I am 300m away and have 16mm cable. Bit marginal but ok.With voltage drop would 300m away Stream/ brook, be useless?
Quite simple, if you have 1 cubic foot per second and a vertical drop of 20 feet, then you have the potential to produce 1kw.
Its pure and simple physics, cant be beaten no matter how many try20feet/6m is a fair old drop to create/have though. You do definitely need a drop then? no point sticking a water turbine type thing in a little stream on a fairly gradual gradient?
It's all to do with the ratio. 2cuft/sec over 10 feet would be the same. So, big river, less drop. Small river big drop. In my own case 1 cuft and 200 feet actually gives 12kw. That's because it isn't actually 20 feet, I think it is 16 or 17 so I get an extra 2kw over 200'.20feet/6m is a fair old drop to create/have though. You do definitely need a drop then? no point sticking a water turbine type thing in a little stream on a fairly gradual gradient?