Which way is my roof facing?

[Worcester]

Unless you are at home during the day you won't offset the bill much, do an ROI calc based on investment cost and savings and then you can make a proper judgement.

If you have drawings done for the roof conversion, then a number of people on the forum here should be able to give you a good ball park figure for your system, also some of them have 3d software so they can model your new roof for shading and give you a pretty accurate answer.

Just because PV is the latest things, doesn't always mean it the right thing - you might also want to look at combination panels that do both PV and Hot water in one panel.

 

[ibby]

Unless you are at home during the day you won't offset the bill much, do an ROI calc based on investment cost and savings and then you can make a proper judgement.

If you have drawings done for the roof conversion, then a number of people on the forum here should be able to give you a good ball park figure for your system, also some of them have 3d software so they can model your new roof for shading and give you a pretty accurate answer.

Just because PV is the latest things, doesn't always mean it the right thing - you might also want to look at combination panels that do both PV and Hot water in one panel.

The machines are always on.

I already have a copper tank, with an electric coil as a backup and a gas boiler which heats up the water.

I didnt know combination panels existed.

 

[Vegelen]

That roof looks ideal for solar.

You could stick panels all over it like a "clockwork orange" patch work quilt.

Connect them to a cheapo inverter and bobs your uncle, you'll be quids in.

Your neighbours will appreciate the aestethic elements of it too..

 

[ibby]

?!!!!??????!!!!

???????

 

[Gavin A]

I was looking at PV, to off set my electric bill.
Maybe I should look at a smaller off grid system to power my computers and servers.

more cost effective to just do a small grid connect system plus UPS for the servers / computers if you want a secure power supply.

I'd do a small PV system across the top of the dormas (as big as system as will fit), plus a wall mounted solar water heating system - but only if you already have a hot water tank based system, not really worth it if you have a combi boiler and / or electric showers.

That's if any of that will actually fit. Do you know what the distance is above the new dormas to the ridge?

 

[ibby]

more cost effective to just do a small grid connect system plus UPS for the servers / computers if you want a secure power supply.

I'd do a small PV system across the top of the dormas (as big as system as will fit), plus a wall mounted solar water heating system - but only if you already have a hot water tank based system, not really worth it if you have a combi boiler and / or electric showers.

That's if any of that will actually fit. Do you know what the distance is above the new dormas to the ridge?

I dont have a combi bolier it is just a gas heater,

The dormers , according to the drawing are full height.

 

[Gavin A]

The dormers , according to the drawing are full height.

you're pretty much stuffed then for anything conventional.

maybe the odd panel here and there with micro inveters or something.

 

[ibby]

oh no

 

[FB.]

Nope thats the way My roof will be.

Once the hip to gable end conversion has been done,
and two dormers on the back it will look something like that.

One thing I am currently discussing with my builder is to extend my roof eves so it can accomodate afew solar panels.
(How big are they?)

Thanks

I don't think you'll be able to fit a worthwhile amount of solar PV no matter how much redesigning you do to the dormers or eaves.
Fairly efficient 250Watt panels are about 1.7 x 1.0m in size. Those with slightly lower Watts (235, 240, 245 etc) tend to be the same size and are basically the same as the 250W but which didn't make the 250W quality grade when flash-tested at the factory.

 

[Gavin A]

there are a fair few alternative panel dimensions, such as 800mm wide, or 1500mm high, 1300mm high etc.

but nothing's going to fit in zero space if the dormers actually are going to be level with the ridge.

 

[moggy1968]

PV tiles?

 

[ibby]

PV tiles?

I didnt know they existed.

 

[SibertSolar]

Romag (Made in Britain!) integrated roof tile system here http://www.romag.co.uk/Our_products/Roof_integrated

 

[ian.settle1]

I put my postcode into good earth, and i found my house.

But which way is North and South?

Thanks

Well if you don't know which way North and South is from where you live how the hell do you expect the rest of us to know or should we get our crystal balls out?:90:

 

[ibby]

does anyone know how expensive solar tiles work out to be?

thanks