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    Smart Meters, could cost you - a lot..

    however, at present afaik no company is paying export via the smart meter readings as none of them have the systems set up to do it and nobody is paying them to either set those systems up or run them. And until the majority of solar owners have batteries, immersun etc then it would cost them...
  2. G

    PV+ - anybody heard of this?

    sue them as well please. Small claims court should be an open and shut case.
  3. G

    PV+ - anybody heard of this?

    please report them to trading standards & RECC if they are members, this is a scam based on complete lies, and by reporting the company you may save many others from being ripped off. Thanks.
  4. G

    Alternatives to SolarCity

    If you could supply a little more info on what you're after I can probably help. is it for single phase or 3 phase grid connection, domestic or commercial application, and how much solar PV have you got installed? We can supply and install batteries with 6000 cycle design life starting a lot...
  5. G

    Help with commercial PV install

    is the existing 30kWp on the same unit? If so, before you go any further I'd be checking that he's aware that he'll not get the Feed In Tariff or export payments on the new system. It may still be viable for him, but best to check before doing much more work.
  6. G

    fault on inverter?

    we've done 3 of them in the last few months, 1 just in warranty, 2 just out of it. Not ours, glad we never installed any of those inverters.
  7. G

    SMA 4000TL 'Insulation resistance' error

    call out fee - ours is £150 + travel time.
  8. G

    SMA 4000TL 'Insulation resistance' error

    it's quite common for that to happen on very cold damp winter mornings on start up, I wouldn't worry about it at that frequency. The insulation resistance value can be lowered from 1MOhm to 500Ohms to reduce the frequency of it happening, but it's not worth the call out fee at that frequency.
  9. G

    Solar PV Industry??

    ahahahaha - ay, long gone. We're lucky to make that from a 20kW these days. Need to be efficient and have a good pipeline of work from multiple sources to survive, but the market is picking up.
  10. G

    Export Limitation

    I think the sibert option can function without the link to the inverters, just by fitting a contactor to cut off one of the 2 inverter circuits if export exceedes 3.68kW
  11. G

    Solar Panels do not reduce Electricity Usage significantly - Confused

    I really would be checking for something being switched on in the house that shouldn't be as that's the most likely explanation of this situation. Turn everything off that you're aware of as well as the solar pv system, and time the time between flashes on the LED on your incoming meter. Each...
  12. G

    Commercial PV installation Qualifications

    well, we never did one, though I don't think they existed before we'd done several commercial projects. All depends if you know what you're doing already or not, if not then the course will presumably help ensure that you comply with all the regulations.
  13. G

    Solar Panels do not reduce Electricity Usage significantly - Confused

    correct
  14. G

    Commercial PV installation Qualifications

    You ought to end up being more than ok to design and manage the installations, but initially I'd advise subbing the electrical connections to an experienced commercial / industrial electrician, at least on anything more complex. You can then gain more experience of that type of work as you go...
  15. G

    Solar Panels do not reduce Electricity Usage significantly - Confused

    you should see a bigger reduction than that, though it does depend on your consumption pattern - if you're never in during the day and don't set washing machines etc off to use daytime power and have that low level of consumption then it could be right. Are you sure your loft light hasn't been...
  16. G

    Earthing PV rails

    no need for a second RCD as the first at the supply end will disconnect the return paths connection to earth, leaving a circuit that's protected by being a separated circuit. As long as the neutral and earth aren't bonded at the inverter, which they shouldn't be.
  17. G

    Earthing PV rails

    MCS standard says no, IET guide says yes to earthing rails. MCS hasn't adopted IET guide despite the lead authors also being members of the MCS technical steering group who wrote most of the MCS guide. So officially the answer is depends which guide you want to follow. We don't for multiple...
  18. G

    How often should PV panels and the inverters be checked or maintained

    No real need for checking beyond maybe every few years checking the inverter vents haven't got clogged up with dust. The inverter does an insulation resistance test on start up every morning so unless the inverter's showing a fault there's really no need for further regular testing beyond what...
  19. G

    Off grid earthing system

    are you sure this is off grid, and not a hybrid system with grid connect and battery back up? AFAIK those inverters don't have off grid functionality - or is the generator and demand big enough that they're able to take their reference from the generator and just reduce the demand from the...
  20. G

    Off grid earthing system

    can you post up make and model of the inverters?

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