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  1. G

    Export payments no longer apply for extensions as well as no FIT payments

    More on our take on this at the Leeds Solar blog in short, bit of a kick in the teeth really, we had 3 customers lined up to have extensions put in based just on getting export payments, and that looked to me to be a sensible start on the gradual road to a zero FITs situation. Suppliers we'd...
  2. G

    Ground Fault Detection Interrupter (GFDI)

    most string inverters are transformerless now, they're more efficient
  3. G

    ofgem FIT guidance to be released next week

    I gather this is what was meant a while back by the 'big society'. Government will be cut to the bone to the point where they rely on others to do their work for them.
  4. G

    Ground Fault Detection Interrupter (GFDI)

    transformerless inverters need it, galvanically isolated inverters don't because they're protected by virtue of the DC being galvanically isolated from earth.
  5. G

    Enecsys micro inverters

    Thanks for that info, I'm sure it will proof invaluable for anyone with the enecsys microinverters fitted, and any installers called out to repair any such systems. I never felt comfortable with them so we never installed any, but there must be a fair few out there.
  6. G

    ofgem FIT guidance to be released next week

    the ofgem meltdown continues apace
  7. G

    ofgem FIT guidance to be released next week

    I don't see it as dead, just needs careful monitoring of the weekly figures, and advising the customers accordingly. Should actually speed the process up from quote to installation stage IMO.
  8. G

    ofgem FIT guidance to be released next week

    the real time bit is the cut off point, which in the table is given by date and time apparently to the 10th of a second. real time data capture, but weekly data release.
  9. G

    Help Identifying Panels in Tender Please

    looks like LG to me too. ps I've given up on this, I tend to just price for what we think that's close enough to the spec then put it down as a variation, as the contract usually goes to the best value bidder anyway.
  10. G

    ofgem FIT guidance to be released next week

    Just had a tweet back from Ofgem to say that they intend to release their updated FIT guidance next week. Only 3 weeks after the scheme restarted / 7 weeks after the previous scheme closed.
  11. G

    Latest FiT tariffs

    wow. is ofgem actually melting down? They've not published updated guidance on how the scheme's meant to operate, and haven't responded to a query I made a couple of weeks back about how the EPC requirement is supposed to work for new builds, and we've still got a 100kWp system from last March...
  12. G

    Epcs solar savings number

    on the flip side the costs given were also about double what they should be last time I looked.
  13. G

    Installer needed - Plymouth area to fit replacement Power-one Inverter.

    I think they stopped that a while back
  14. G

    Pv on rcd

    dunno like, I seem to quite regularly see 12-15mA leakage on the SMA 3600TLs particularly in winter, though I'm not entirely clear if this is leakage that would show on the AC side or DC side leakage via capacitance to earth, it's always much worse in cold damp conditions so probably the latter.
  15. G

    What's the largest size array for a 60 amp cable head fuse? Single phase.

    60A feed, I doubt you'll get more than 16amps solar, but depends if they put in a bigger supply cable than that would indicate, length of cable, transformer, if the neighbours have any, whether the DNO engineer got laid the night before etc
  16. G

    Altering the orientation (and therefore annual yield) of an existing system.

    I think there's at least 10% margin of error before any investigation is triggered, prob more like 20%
  17. G

    Two identical systems, one 20% down...

    Is this a power-one / ABB? did you check the continuity on the string fuses inside the inverter? those figures could easy be explained by one string fuse being down in the inverter. Other potential is bird crap on one of the strings of panels to such an extent that it's knocking the MPPT off track.
  18. G

    Storage

    yep, that's basically it. Calculated that way allows a proper comparison between different battery options.
  19. G

    Storage

    but it's that sort of calc that's confusing people into thinking it could be viable. The simplest way to show it isn't is to include that lifetime storage cost in the calc. I wish BRE had included that in their guide.
  20. G

    An appropriate use of the Human Rights Act???????

    I can't be arsed to go into the details, but the big picture is pretty undeniable. Vast swathes of UK housing has been bought up by BTL landlords which has pushed house prices up to levels at which it's unaffordable for a large proportion of the population to actually buy a house, particularly...
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