Quote:
Originally Posted by SDMCF
Thanks for your comments.
I have no experience of PV so I am basing my expectation on my experience with evacuated tubes for water/space heating. I have 100 tubes which produce about 7000 kWh per year but produce virtually nothing from mid/late October to early/mid January. November production might be below 5% of what I get in March for example. Should I expect PV to be similarly useless at that time of year or will PV produce something worthwhile despite these overcast conditions?
|
SDMCF,
Maybe you can get an idea from my several year graph. The winter months here can be tough, last Feb., for instance, was a wash because these modules were covered with a foot or more of snow the whole month and part of Jan. and March too. (My intertie/off grid modules, mounted on poles that I could clean did much better. That 4.2Kw array doesn't show up on this graph. This is only my strictly intertie output.) This graph is a 6.44Kw system, mounted east/west but even with this arrangement I still get results.
This is a dark place but I still do very well and would expect you will also.
Rob