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  1. G

    Storage

    you're missing the lifetime cost of storage of the battery. cost of battery / capacity x lifetime number of discharge cycles. on the LG I think that works out at around 8p / kWh.
  2. G

    Battery Battery Storage Gets A £1m Boost

    thing is, these systems aren't designed to export onto the grid at all, they're zero export devices, so as long as they have G83 protection settings I don't really see that it has anything to do with the DNO.
  3. G

    Storage

    6.5p/kWh economy 7 tariff, plus 6p/kWh cheapest lifetime energy storage cost I've found yet* (not including inverter costs) means it'd be 12.5p/kWh vs 11.9p/kWh for the daytime rate for the same economy 7 tariff. Not including battery efficiency losses. The SMA guy was probably just another...
  4. G

    Storage

    using economy 7 is in no way economic when you take into account the lifetime cost of storage + the economy 7 cost of leccy. There really is far too much pie in the sky stuff being spouted on this at the moment.
  5. G

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

    I welcome pretty much anything that puts the brakes on the runaway btl market, which is almost entirely responsible for the vast increases in house prices over the last couple of decades, way ahead of rises in pay levels. This graph shows the scale of the BTL problem, which is massively...
  6. G

    Installing PV non MCS

    tbf they were getting people to attend a course they ran, and have been doing pv and training people in renewables for a lot longer than most 3 day MCS course providers. They'd just do the MCS paperwork side of things.
  7. G

    Storage

    So far I seem to be doing battery tech support for 3-4 suppliers.
  8. G

    Storage

    it doesn't replace the existing inverter, it works with your existing inverter, it has no capacity to invert dc to ac and match to grid etc, it's just a charge and discharge controller on the DC side of the inverter.
  9. G

    Rent a roof boys are still out there but the lies got bigger

    well, I can't make the economics stack up for batteries just for self consumption alone in all but a small handfull of cases, not when using sunny design to estimate the self consumption levels rather than plucking a figure of 80% self consumption from thin air for all battery systems as others...
  10. G

    Rent a roof boys are still out there but the lies got bigger

    so it can work as a stand alone off grid unit, but only with manual changeover? That suddenly makes it a more interesting option if that's right, and not just marketing bull. Last time I spoke with a Solax rep they didn't think it had that capability at all, but that was a few months back.
  11. G

    Installing PV non MCS

    they could choose not to though, as MCS is (rightly or wrongly) viewed as at least a basic level evidence of competence to install SSEGs to the required standards. Unlikely to be an issue here, but could be. I'm not sure if the system would be eligible for export payments either without the...
  12. G

    EPC and FIT for new build projects?

    Surely they have to publish the EPC changes in advance of them being implemented don't they? This is a massive change that has huge impacts on how every sale has to be done, if they haven't published this yet then they surely can't implement it can they?
  13. G

    EPC and FIT for new build projects?

    no worries, I had a feeling that was the case. Am on a mission to very rapidly get my head around all the intricacies of the new system to see where the key markets are and where the major pitfalls are that need to be avoided. This is a glaring pitfall that I'd like to avoid as it could end up...
  14. G

    EPC and FIT for new build projects?

    are you referring to the new or old regime?
  15. G

    EPC and FIT for new build projects?

    The plot thickens, as I can't find any reference to this EPC change in the new FIT order, though DECC clearly say that they intend to make the change in the consultation response. So unless I'm missing something in the legislation, it'd seem that DECC either changed their mind / realised about...
  16. G

    EPC and FIT for new build projects?

    Has anyone worked out how the new EPC requirements are supposed to work for new build developments? As I understand it the EPC has to be produced before the MCS cert and can't show PV on it to be eligible for FIT, but on a new build house the only EPC that is accepted is a final EPC for the...
  17. G

    EPC commercial and domestic

    Unfortunately unless there already was an EPC D for the farmhouse at the time I suspect you / your client are likely to be a bit ********ed here, as the energy companies are applying the regulations correctly now. IF one existed they could probably be persuaded to take that EPC as being valid...
  18. G

    Anyone Recognise Mounting Kit?

    Out of interest, which company was it?
  19. G

    Anyone Recognise Mounting Kit?

    schuco, but with the bit that slots into the rails fitted the wrong way round. Not the usual 1 turn fittings, so suspect they were using up old stock and you may have issues with the length of the bolts depending on the panel thickness.
  20. G

    DECC launch FIT review

    Not much point still using DECC's figures, the deed is done now, the task now is to support the solar industry and get the message over to the public that solar is still viable. DECCs £6k figures were out of date when published, and I doubt we're going to be doing anything over £5k for 4kWp now...

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