http://www.solarguide.co.uk/forum/ Solar Advice and Discussion Forum for Solar Installations and maintenance en Wed, 22 May 2013 12:08:29 GMT vBulletin 60 http://www.solarguide.co.uk/forum/images/misc/rss.png http://www.solarguide.co.uk/forum/ http://www.solarguide.co.uk/forum/solar-pv-questions-discussions/solar-evacuated-tubes-where-buy-replacements-59/ Sun, 19 May 2013 11:09:43 GMT I have an efficient evacuated tube heating system on my roof, and one of the tubes is cracked. Does anyone know a supplier of single tubes? All I... I have an efficient evacuated tube heating system on my roof, and one of the tubes is cracked. Does anyone know a supplier of single tubes? All I can find are complete systems. ]]> Hodge http://www.solarguide.co.uk/forum/solar-pv-questions-discussions/solar-evacuated-tubes-where-buy-replacements-59/ http://www.solarguide.co.uk/forum/solar-pv-questions-discussions/monitoring-58/ Thu, 16 May 2013 11:14:37 GMT I've got a bit of a problem trying to monitor my solar pv at home.We have 2 systems they are as follows
System 1--SMA 1.46 kw
System 2--Power One 2.42 kw.

Is there a monitor out there that could possibly monitor them to go on one display as a total production that a couple of older people could easily understand.Or am I just trying too hard
to make it easy ]]> patd1967 http://www.solarguide.co.uk/forum/solar-pv-questions-discussions/monitoring-58/ http://www.solarguide.co.uk/forum/solar-pv-questions-discussions/2013-prices-57/ Tue, 14 May 2013 17:54:58 GMT Solar panels prices change all the time. Gallium 833 panels over time loss drop less over time so for price difference would be a better choice... Solar panels prices change all the time.

Gallium 833 panels over time loss drop less over time so for price difference
would be a better choice over canadian panels.

Price for 12 panels at 255w so 3kw system price all in for 5,300

when looking at what you get back there is an important thing to take into account
That is the price of electricity over the next 25 yrs.

and how much electricity you use a yr.

when you generate solar electric you can if your want use all of it so if you have 3kw system you can use 3000 units of electricity
But you get paid for all you produce the fit tarrif
then you get your total halved and you get the export rate on that half.

this then is 3000 at 15.44 £463.20 yr
then 1500 at 4.46 £ 66.90
this is then 530.10 you will get paid
BUT you can use all 3000 yourself so there is the cost of this at your electricity rate
3000 units at 12 pence a unit is £360

So making a total of £890 a year saved or earned

what do you think your elec unit price be in 20 yrs time
the systems are reliable so there is no reason why 30 yr plus is possible from your system

dont look at the cost in the short term
£5300 / 20 yrs = £265 yr can you save or earn more than this ]]> scorpian http://www.solarguide.co.uk/forum/solar-pv-questions-discussions/2013-prices-57/