Green Deal solar

Andrew K

Member
Arable Farmer
Location
Essex
I think that may work on low output systems but would possibly not be do- able/worthwhile on higher outputs? Maybe i,m wrong.
Realistically,how much is the car going to generate money wise?
 

Exfarmer

Member
Location
Bury St Edmunds
I have looked at batteries for short term storage, ie charging at noon with PV storing, till discharge in the grid at Peak hours 5-7 . Then recharging at night From cheap power and discharging again At the morning peak.
I have yet to find any way of doing this on a small scale to earn a return even though there is a margin of 8-10 p at times.
Must put mt name down on one of those cars though ;)
 

sjt01

Member
Mixed Farmer
Location
North Norfolk
im thinking the car (s) could be used as a power store for solar on days it’s not being used and pimp power into the grid

a car that earns you cash when not being used ? i have. friend who works for a company that are going to provide such contracts
Only available on Chademo charge ports at present, the CCS as on Porsche is not yet specified for Vehicle to Grid. If you have a Zappi or similar charger, a powerwall then Octopus Agile tariff allows charging at times when the grid is over capacity generating and will pay up to about 5 p for you to use the electricity. It is cheaper than paying generators to switch off.
 

farmerm

Member
Location
Shropshire
im thinking the car (s) could be used as a power store for solar on days it’s not being used and pimp power into the grid

a car that earns you cash when not being used ? i have. friend who works for a company that are going to provide such contracts
Does charging and discharging the battery not shorten battery life of what will surely be a very expensive battery? How much miles charge would you want to keep in reserve for unplanned emergency use, things like when you need a pint of milk, to escape a family argument or are having a heart attack?

Will Borris's new planning rules mean I can ignore listed building rules and stick up some solar panels on the roof...
 

sjt01

Member
Mixed Farmer
Location
North Norfolk
800Volts? That has the potential to give a hullava kick to the first responders pulling you out when you wreck it...!
As soon as the airbags go off, or the car is off, there is no more than 12 volts outside the battery pack. There are contactors on both positive and negative feeds, and these are inside the pack itself. There are also "First Responder Loops", prominently placed loops of 12 volt wire, which when pulled or cut will isolate the 800v supply, as additional security.
 

br jones

Member
I have looked at batteries for short term storage, ie charging at noon with PV storing, till discharge in the grid at Peak hours 5-7 . Then recharging at night From cheap power and discharging again At the morning peak.
I have yet to find any way of doing this on a small scale to earn a return even though there is a margin of 8-10 p at times.
Must put mt name down on one of those cars though ;)
Seen as you can charge a lot of tesla cars for free at a tesla charge point ,charge car at point ,take home ,plug in and use free eleccy ?
 

farmerm

Member
Location
Shropshire
As soon as the airbags go off, or the car is off, there is no more than 12 volts outside the battery pack. There are contactors on both positive and negative feeds, and these are inside the pack itself. There are also "First Responder Loops", prominently placed loops of 12 volt wire, which when pulled or cut will isolate the 800v supply, as additional security.
Alrighty in theory until something conductive impaled the battery pack in an unfortunate place.. If the 12V circuit kill wiles are so prominent are you not at risk of someone disabling your car whilst you are shopping in Waitrose.... I can find a problem to any solution (y)
 

sjt01

Member
Mixed Farmer
Location
North Norfolk
Alrighty in theory until something conductive impaled the battery pack in an unfortunate place.. If the 12V circuit kill wiles are so prominent are you not at risk of someone disabling your car whilst you are shopping in Waitrose.... I can find a problem to any solution (y)
An impaled battery is just like an impaled fuel tank - a lot of stored energy which can catch fire! There is more energy in a fuel tank, as less than 30% of it ever gets to the wheels, while an ev has over 90% going to the wheels, therefore less energy needed for storage.
 
I see under the Green Deal announced in the summer statement that domestic solar qualifies

Im thinking I could maybe get up to 5k for solar on my house ? @Exfarmer maybe ?

can anyone recommend an advisor or installer I should speak to about this please ? scheme isn't open yet as far as I can see but nothing to stop planning ready for it I guess ?

Interesting to see if we're able to get this on a farm where most of the power is used on farm.

5k buys a lot of panels these days
 

chickens and wheat

Member
Mixed Farmer
I'd put the charger on the farms 3phase supply if possible, gives a faster charge I think. Panels could either boost the farm supply or just the normal houshold circuits.
Trying to charge a car via solar could mean using domestic day rate electric everytime a cloud passes over.
Depends on your tarrifs etc,charger size vs panel output . So many variables.

I'm trying to run heat pumps off solar but supply and demand don't follow, sunny = less heat pump use to heat sheds.
I just see the solar as away of reducing the annual bill, pretending the solar runs a heat pump/charges a car isn't quite true for most
 

Clive

Staff Member
Arable Farmer
Location
Lichfield
I'd put the charger on the farms 3phase supply if possible, gives a faster charge I think. Panels could either boost the farm supply or just the normal houshold circuits.
Trying to charge a car via solar could mean using domestic day rate electric everytime a cloud passes over.
Depends on your tarrifs etc,charger size vs panel output . So many variables.

I'm trying to run heat pumps off solar but supply and demand don't follow, sunny = less heat pump use to heat sheds.
I just see the solar as away of reducing the annual bill, pretending the solar runs a heat pump/charges a car isn't quite true for most

i've got 3 phase in my garages at home so charger is going in there, car will charge at nights so solar would not charge the car but it would reduce my day time use bills
 
As soon as the airbags go off, or the car is off, there is no more than 12 volts outside the battery pack. There are contactors on both positive and negative feeds, and these are inside the pack itself. There are also "First Responder Loops", prominently placed loops of 12 volt wire, which when pulled or cut will isolate the 800v supply, as additional security.

I've seen this on a video, the emergency services know where to find them. Cut those and the car is dead as a dodo and totally safe.
 

chickens and wheat

Member
Mixed Farmer
i've got 3 phase in my garages at home so charger is going in there, car will charge at nights so solar would not charge the car but it would reduce my day time use bills

But how big a supply to garage? Rapid chargers are quite power hungry.
I'm quite lucky that the main electric incomer is reasonable close to house so a substantial charger will be possible when the time comes
 

SFI - What % were you taking out of production?

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


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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