Recent content by LightGEN

  1. LightGEN

    PV Panel - Output Deterioration

    If the panels came at low or now cost, there's a good case for reusing a working system ...it's wasteful not to. If it was working at the time of removal, there's no reason to assume that it won't continue to do so. A visual check and output test will establish if the panels are damaged. Who...
  2. LightGEN

    Sma sunny boy 2000hf stopped working

    When I last installed SMA inverters, back in 2011, the standard warranty was 5 years but warranty extensions up to 25 years could be purchased. The SMA US website states the standard warranty is 123 months from date of shipment, which seems to suggest that you have a warranty extension package.
  3. LightGEN

    Adding to an existing PV array - Feed in metering

    Not even just profit margins, which are pretty small in percentage terms. All that grid infrastructure has a cost to operate, which isn't covered if electricty is bought and sold at the same price.
  4. LightGEN

    Adding to an existing PV array - Feed in metering

    It's considered to be a shortfall - 'net metering' isn't a part of the offer. Even if it were to become a part of the offer, there would likley be a requirement to measure consumption and export seperately, for accounting purposes, however, net metering is unlikley to ever be offered, becasue...
  5. LightGEN

    Screened PV cable.

    Yes, 'containment' is effective. In fact just twisting the cables together into a 'twisted pair' has beneficial effect, because of a cancelling effect that comes into play by doing so - widely used in data cables ...but there are practical challenges in achieving that under a solar array ...it...
  6. LightGEN

    Adding to an existing PV array - Feed in metering

    Some mechanical meters do, but you're meant to report that to the supplier, so it can be replaced.
  7. LightGEN

    Screened PV cable.

    Among the things I have looked at is EMC heatsrink, which contains an EMC 'mesh' and drain wire ....That would work but it's eyewateringly expensive ....so it's impractical. Thanks for the suggestions; at least it seems like I'm not missing anything blindingly obvious ....I'll keep looking.
  8. LightGEN

    Screened PV cable.

    Thanks ....I took a look a 'Byson' ....they don't list an 'EMC solar cable' but it's something I can follow up on.
  9. LightGEN

    Screened PV cable.

    SY/CY are also things I've considered but, as someone else commented, the screening may be inadequate. If I could find a foil screened equivelent that might work. I haven't checked the datasheet but I suspect that 4mmsq SY/CY isn't going to fit into an MC4.
  10. LightGEN

    Screened PV cable.

    Morning ....actualy a long time member of the forum from back in the PV 'hayday' but I've been out of this game since 2011. I have considered stainless flexi-conduit but it might mean cutting off all the MC4s at the panels and re-terminating once the conduit is installed. I'm not averse to that...
  11. LightGEN

    Screened PV cable.

    Has anyone come across screened PV cable? As a personal interest I have an amateur radio licence. My own PV system (inverter) generates switching noise, which radiates from the DC loops on the roof, causing interference to HF radio reception. I've improved things substantially by installing a...
  12. LightGEN

    Adding to an existing PV array - Feed in metering

    I think what you're asking is 'what happens to electricity exported by unmetered solar PV systems' ....assuming that's the case ....it just disappears into the grid. It doesn't get measured at any stage. Arguably, there will be a drop in the amount of fossil fuels consumed on the generating...
  13. LightGEN

    fixings for a stone roof

    In my view, an 'in-roof' sysem is the best way of going about this. Ideally, storing the removed roofing material somewhere safe for future re-installation, should that be necessary.
  14. LightGEN

    Sma sunny boy 2000hf stopped working

    SMA offers a repair service, however, when I had cause to enquire a couple of years ago it was terrible value for money ....customer eventually sourced a new-old-stock replacement 3000HF, with 5 year warranty, for notably less than the cost of a repair - which only offered 12 months warranty.
  15. LightGEN

    Purchased a house with PV

    The OP has an MCS certificate ....indicating this was the case.

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