Get Real! wrote:supporttheunderdog wrote:GR, things have moved on - the technology has improved so PV is becoming more efficient, and it is now possible to get PV tiles (eg made by Tesla, among others, which look more like roof tiles, so are less obtrusive. They are NOT as efficient and are more costly (by a factor of about two) than conventional PV panels on a KW/KW basis.
The new ones probably look OK on modern house designs but I doubt they'd look good on mine.
Another thing, if I remember well is that they weren’t suitable for 3-phase power but I don’t know if that’s changed. I’ve got two huge 50,000BTU aircon compressors that would probably suck up a PV’s juice in one gulp!
For 3 phase power, you just need the correct inverter. The panels generate a dc voltage and converted to ac via the inverter.
It would cost a bit more. A 5kw system with a 3-phase inverter would probably set you back about 6-7k.
Their payback time is 5-6 years, but since the panels are guaranteed for 20 years (some 25) then it is a worthwhile investment if you use a lot of juice during the day.
N.B. Whilst they tout 20 years guarantee, they don't tell you that the inverter is only covered for 10 years, so in any new agreement get the buggers to up the guarantee period on the inverter.
AHK is losing its grip and this has been liberalised and now anyone can have PV panels, they just don't make it easy.
What good are looks when we have fucked up the environment and leave nothing for our children/g.children to enjoy???
Further, as from the year 2020, all new builds must have zero-energy, so all sorts of energy saving ideas, whether you like it or not.