Archive for Over the Gate Join in for a friendly chat over the gate about home and country matters. (Nominated Charity The British Heart Foundation)
 

The free forums are now under new ownership, a full announcement will be made shortly

       Over the Gate Forum Index -> No Footprints
bodger

Solar panels ?

How many of you have solar panels fitted to your house ?

Here's a picture of the affordable housing thats being built on land next door to us.




The panels are the squares fitted to the rooves. I've spoken to the builder and he reckons that they will provide 80 to 90% of the houses hot water. He says that the panels and all the piping and tanks etc including the fitting come in at under £3000. If you think that a good proportion of your electricity or gas bill is made up from energy used heating water, then I think its certainly an idea worth exploring.

The price of the technology has certainly become more affordable, there's a chap down the road who spent close on ten times that amount having his fitted some years ago. I told him what these were costing and he was as sick as a parrot to say the least.

To conclude, I was very suprised to be told that you need planning permission in order to fit them.

Just think how nice it would be to be able to tell the energy companies what they could do with their bills and standing charges.  Anyone for a windmill ?
mandie

we have a solar panel business,you do sometimes require planning permission but not always,they have come down alot in price and you can apply for a grant to help pay for them.
Justme

Re: Solar panels ?

bodger wrote:
1, How many of you have solar panels fitted to your house ?

2, Here's a picture of the affordable housing thats being built on land next door to us.




3, The panels are the squares fitted to the rooves. I've spoken to the builder and he reckons that they will provide 80 to 90% of the houses hot water.


1, Me but mine are PV. Planning on doing solar thermal soon.

2, They look like flat plate collectors.

3, They must have changed the law on physics then. Looks like about 4m2 at the most they have put up. Each m2 get about 600watts falling on it. So 4 x 600w = 2400w (2.4kw) x about 6 hours full production in summer = about 14.4kwh. Most families use nearer 20kwh for hot water per day. In winter expect about 1/10th of that. All assuming they are south facing & at a slope that equals the latitude they are sited on (they wont be cos of the roof slope).

a, even the best flat plates dont work very well under marginal conditions
b, the amount they have fitted is not enough for a family
c, even the best tube type ones can only just do 70% of the yearly needs unless sized very large & flat plates just wont cut it in winter or over cast days.
d, PEople also need to change how they live to get the best savings. Only using heat when its been sunny. Dont shower today cos then you wont have any washing up water ect.
Justme

mandie wrote:
we have a solar panel business,you do sometimes require planning permission but not always,they have come down alot in price and you can apply for a grant to help pay for them.



PV or thermal?

Planning is normally not needed (unless in special areas) as long as its under 200mm from the roof line & not above the ridge as you say but they are starting to insist on building regs applications.  Grrr

Justme
bodger

The builder whose doing this development wants to put one on his own new build in Pwllheli and he's had to put in for seperate PP.
Justme

bodger wrote:
The builder whose doing this development wants to put one on his own new build in Pwllheli and he's had to put in for seperate PP.


That's cos Gwynedd council are still in the dark ages & have not adopted the new regulations yet.

PP should only be needed if its on a listed building or in a National Park or similar situations. Also if PD rights have been removed for some reason or not given as its a new build. Or if its over 200mm from roof plane, higher than the ridge. They are making you apply for building regs (and pay the fee) to prove the roof is strong enough (the same roof that the 2 burly builders will be standing on to fit the light weight panel).

If you apply for planning they wont tell you you dont need to & wont refund your money.

Justme
mandie

Justme wrote:
mandie wrote:
we have a solar panel business,you do sometimes require planning permission but not always,they have come down alot in price and you can apply for a grant to help pay for them.



PV or thermal?

Planning is normally not needed (unless in special areas) as long as its under 200mm from the roof line & not above the ridge as you say but they are starting to insist on building regs applications.  Grrr

Justme


THERMAL
lizzie44



Heres mine. It has been put on a south east roof and on a good day with plenty of sun we get 150litres of water heated to 60 degrees. Even in the winter it preheats the water to about 35 - 40 degrees. We put it in about 3 years ago and reckon its payback time already.  Its the evacuated tube sort.  Love Lizzie
lizzie44

P.S forgot to mention we did have to get permission from our council - but not planning permission. An officer just came out and checked it couldnt be seen from the road as we live in a conservation area. Love Lizzie
bodger

I've just asked kaz what 60 degrees is and she says its hot Lizzie.
Justme

You cant put your hand in if its over 50, more comfortable at 40 a hot batch would eb about 38.

Also remember that with solar as its so hot you tend to pre mix it with a TMV (thermostatic mixer valve) so that 150L will be nearer 200-250L of usable water.

We are just about to fit a solar thermal set up but as we need it to run on minimal power we are going to have a thermo syphon set up with an intergrated tank & a mains pressure internal coil. Just got to choose how many tubes/ L in the set up.

(side note, as its an intergraited tank it can not be roof mounted without planning so we are floor mounting it)

Justme

       Over the Gate Forum Index -> No Footprints
Page 1 of 1
Create your own free forum | Buy a domain to use with your forum