Tesla power wall

[Exfarmer]

Most houses around these parts have Welsh slate roofs. Mine is set down slightly from a public road so that one side, the side facing most sun from the general East to South direction, is in full view. The far side is probably not suitable for solar and will have the old slates refitted.
Here’s the back of the house, facing the road, at around 8am in September and the sun will track from the extreme right to the end of the house at the extreme left at that time of year, but not so much from October onwards where only the slates facing the camera will get direct sunlight.

View attachment 1009097

Can you not find an area for groundmount?

 

[Cowabunga]

Can you not find an area for groundmount?

Yes but I am looking to re-roof the house anyway and the ideal answer would be to kill two birds with one stone. I don’t particularly want to spend £20k or so re-roofing with those slates PLUS installing separate solar panels. Most all my fields face slightly West, which I feel is sloping in the wrong direction for solar, which I’m not convinced will pay me back anyhow as a stand-alone array.

 

[Ukjay]

Snake oil read it through!

Why is it snake oil?

 

[Y Fan Wen]

Yes but I am looking to re-roof the house anyway and the ideal answer would be to kill two birds with one stone. I don’t particularly want to spend £20k or so re-roofing with those slates PLUS installing separate solar panels. Most all my fields face slightly West, which I feel is sloping in the wrong direction for solar, which I’m not convinced will pay me back anyhow as a stand-alone array.

When you have to go out of milk with the N restrictions, solar might be the obvious crop.

 

[Exfarmer]

Why is it snake oil?

I have deleted my post until I can research it further
I will happily admit I may have been wrong in my posting

 

[Ukjay]

I have deleted my post until I can research it further
I will happily admit I may have been wrong in my posting

No need to delete anything - just curious in your reply.

From what I can ascertain - the designs are so that they limit the temperature generated to avoid damaging the PV cells, and as such appear to be aligned with what Bob was suggesting - a source to aid HP's (suplimentary systems).
They are also reported as being used to store heat in ground (extracting heat from panel to flow into ground reserve) for supporting GSHP in cooler months, so again appears aligned to what Bob was potentially suggesting.

Obviously, the commercial installs may just be a lot of tosh, just like many things simply to get the tariffs.

 

[Cowabunga]

When you have to go out of milk with the N restrictions, solar might be the obvious crop.

I have my doubts. Western Power don’t seem to want more small generators supplying their grid. Not ruling it out though. Trees would be less capital intensive perhaps and these are what The Government are aiming to expand over much of the Welsh countryside, as if we don’t have enough of them already. The people in the urban areas and Capital Cities haven’t got a clue about the countryside on the whole and think we all have thousands of acres made of hundred+ acre prairies.

 

[steveR]

Most houses around these parts have Welsh slate roofs. Mine is set down slightly from a public road so that one side, the side facing most sun from the general East to South direction, is in full view. The far side is probably not suitable for solar and will have the old slates refitted.
Here’s the back of the house, facing the road, at around 8am in September and the sun will track from the extreme right to the end of the house to the extreme left at that time of year, but not so much from October onwards where only the slates facing the camera will get direct sunlight.

View attachment 1009097

Nice big area of roof!

I wonder if a different roofing material would lend itself to mounting panels more easily, or when the roof is off, a PV mounting frame is integrated into the building. I feel new build should be designed built with PV in mind from the outset.

 

[steveR]

I have my doubts. Western Power don’t seem to want more small generators supplying their grid. Not ruling it out though. Trees would be less capital intensive perhaps and these are what The Government are aiming to expand over much of the Welsh countryside, as if we don’t have enough of them already. The people in the urban areas and Capital Cities haven’t got a clue about the countryside on the whole and think we all have thousands of acres made of hundred+ acre prairies.

It bugs me that the DNO's now only want to deal with the mega PV farms these days. Smaller scale is far easier on the landscape for so many reasons, and can fit into a fold in the land, or in a few fields, screened with trees.

There is no incentive or support for low level grid production, it has to be down to individuals. Pity it cannot be at a village level.

 

[renewablejohn]

Most houses around these parts have Welsh slate roofs. Mine is set down slightly from a public road so that one side, the side facing most sun from the general East to South direction, is in full view. The far side is probably not suitable for solar and will have the old slates refitted.
Here’s the back of the house, facing the road, at around 8am in September and the sun will track from the extreme right to the end of the house to the extreme left at that time of year, but not so much from October onwards where only the slates facing the camera will get direct sunlight.

View attachment 1009097

Have you looked at these. https://www.gb-sol.co.uk/products/pvslates/default.htm There supposed to be a good match for welsh slate.

 

[Poorbuthappy]

Have you looked at these. https://www.gb-sol.co.uk/products/pvslates/default.htm There supposed to be a good match for welsh slate.

Interesting, but expensive.

 

[renewablejohn]

Interesting, but expensive.

Think like any solar they have gone down in price. If you do get a quote I would be interested in the figure as its probably the only way I will get solar on my listed building.

 

[Exfarmer]

Think like any solar they have gone down in price. If you do get a quote I would be interested in the figure as its probably the only way I will get solar on my listed building.

Actually solar prices have been rising for thr last few months due to a slow down in china to do with gas prices etc.

 

[Poorbuthappy]

Actually solar prices have been rising for thr last few months due to a slow down in china to do with gas prices etc.

And high demand?
High energy prices driving demand.
Installer here said interest was back to height of subsidised levels.

 

[Exfarmer]

And high demand?
High energy prices driving demand.
Installer here said interest was back to height of subsidised levels.

absolutely and there are not the skilled people about as so many gave up their tickets etc when the FIT disappeared

 

[Scrambler]

Spoke to an installer today and his exact words were ‘2 to 3 years wait at the present time’ for the powerwall so it’s not an option.

I have placed an order for 2 Powerwall 2’s to be installed next month. They said they are scarce, but had managed to secure 2 for me.
I better double check on Monday!
It’s pretty clever how they can work with 3 Phase if you have net metering.

 

[br jones]

I have placed an order for 2 Powerwall 2’s to be installed next month. They said they are scarce, but had managed to secure 2 for me.
I better double check on Monday!
It’s pretty clever how they can work with 3 Phase if you have net metering.

really ,was told a very long waiting list ie years

 

[Exfarmer]

really ,was told a very long waiting list ie years

Yesterday was quoted 6 months but have no idea if they can meet it.

 

[Barmyfarmer]

I have placed an order for 2 Powerwall 2’s to be installed next month. They said they are scarce, but had managed to secure 2 for me.
I better double check on Monday!
It’s pretty clever how they can work with 3 Phase if you have net metering.

How much was it for 2 if you don't mind me asking?

 

[Scrambler]

How much was it for 2 if you don't mind me asking?

Just under 15k plus vat for 2 Powerwalls and a Gateway 2 including installation.