House power requirement

daveydiesel1

Member
Livestock Farmer
Location
Co antrim
You could get one to run a GSHP maybe? An 8kw pump will use about 2.2kwh when running.

I’d love to be able to setup a small hydro to do similar
Id love a small hydro but apparently u either need a big fall or big volume from any1 iv asked. Is this the case or could some1 on here shed some light
 

daveydiesel1

Member
Livestock Farmer
Location
Co antrim
Yes, we’ve got neither really just a steady flow
Same here, have u seen anythin that would work with that that would say heat the water and radiators as if it was constantly doin it surely it wouldnt be consumin major power as it would only be toppin up the heat rather than havin to go flat out to heat cold water
 

Exfarmer

Member
Location
Bury St Edmunds
Are you looking to go off grid? If so there is no way you can power something like a heat pump unless you have a solid renewable source such as Hydro. Or a very big battery
The huge problem of heat pumps, is they only work efficiently when the weather is right.
Yes they can work when the temperature is well below freezing but they are very poor when the temperature is in the range 0 - + 10c and the humidity is high. Which is about average in the UK from mid October to March.
This is unlucky since the this is when our demand is highest.
The quoted average of 3 X the heat recovered for energy input is an average of the best performance in warm weather of 7 to 1 and the poorest in winter weather of just 1 to 1.
I have runa heat pump for 15 years and now what I am talking about.
I also have 8 kw of panels on my house, which do not produce a lot when I need it most.
Domestic heat pumps combine an immersion element to avoid the repetitive re cycling that is needed when they would be in de frost mode . This makes a complete mockery of the concept in my opinion and of claims of their efficiency. I use a gas boiler for my house which is far more efficient in energy delivery.
 

daveydiesel1

Member
Livestock Farmer
Location
Co antrim
Am not wantin to go off grid just was wantin to be fit to heat the house with mostly renewable energy, not for environmental purposes just for bill reduction, that why i was thinkin either wind or water power as they are usually plentiful in winter. Does any1 make a system for water that doesnt require either a waterfall or a river. Iv access to a fast flowin burn and can pipe it back at least 200 meters
 

renewablejohn

Member
Location
lancs
Id love a small hydro but apparently u either need a big fall or big volume from any1 iv asked. Is this the case or could some1 on here shed some light
Give me the highest point and lowest point of your land that the stream runs through and I can then give you a rough estimate of what power you can expect from different pipe diameter flows.
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
Same here, have u seen anythin that would work with that that would say heat the water and radiators as if it was constantly doin it surely it wouldnt be consumin major power as it would only be toppin up the heat rather than havin to go flat out to heat cold water

No, but I’m sure a 1kw immersion heater in the buffer tank running 24/7 would dramatically reduce power consumption if only I could get a 1kw hydro setup….
 
Last edited:

Y Fan Wen

Member
Location
N W Snowdonia
When you are thinking about hydro, all you need to know is that one cubic foot of water per second falling through 20 feet of vertical head has the potential to produce one kilowatt.
So my hydro with one cubic foot per second and 200 feet of head gives ten kilowatts.
 

daveydiesel1

Member
Livestock Farmer
Location
Co antrim
Give me the highest point and lowest point of your land that the stream runs through and I can then give you a rough estimate of what power you can expect from different pipe diameter flows.
Aww i wouldnt know the answer to that without hirein a laser level. Also what is the best way to determine how much volume of water is flowin
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
Your missing a trick here. The water power needed for running a 1kw immersion would provide power for a 3kw heat pump with the flowing water being the heat source.

Yes but really you shouldn’t be harvesting from flowing water but it would work fantastic as running water never gets close to freezing temps and will never run out!!
 

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quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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