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Dillsue

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Dillsue last won the day on June 22 2022

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  1. Assuming the Tesla batteries are Powerwalls, then your mate would likely have needed permission rather than "informing them". AFAIK, Powerwalls can only be installed by Tesla approved installers who are likely reputable and should have done things by the book. That'll likely involve your mate receiving paperwork so he should know for sure that the DNO gave consent. If not, ask the installer to confirm. Same for the solar. If he's charging 3 x Powerwalls and charging an EV at the same time, that's going to be a sizeable load on his supply which might explain the volt drop problem hes got. Try staggering the charging so the load is reduced but runs for a longer period of time? If he schedules the battery and EV charging to happen during the day, he can get a competent spark to monitor the supply and see if there's a volt drop and work out/confirm what's causing it. If the supply is dropping below statutory limits then there's a fair chance the DNO will have to bolster the supply.
  2. The MCS standard requires install by an MCS registered contractor. If you were going to claim DIY to all other aspects of the MCS standard was the equivalent, then whoever did the work would likely need to meet the requirements of MCS registration whilst not actually being registered?? Otherwise how do you demonstrate equivalent compliance with the section that requires the work be done by an MCS registered contractor??
  3. https://www.planningportal.co.uk/permission/common-projects/heat-pumps/planning-permission-air-source-heat-pump Unless you can find equivalent standards, then PD seems to be wholly dependant on MCS standards
  4. I believe there's plenty of systems that will island the house and give several kw of power to the house. I've no personal experience but beleive tesla powerwall does it using their gateway, solaredge now support whole house backup and I think there's lots of others. Whatever you do make sure is certified for UK grid connection and from a reputable manufacturerer- you don't want to be powering the grid when a linesman is trying to fix a fault!
  5. It will(should) only produce power on the back up/UPS/EPS AC output. The AC connection to the grid will shutdown if the grid supply is lost.
  6. Maybe I'm missing something but there seems no point in battery storage if youve got a disc meter?? If you've got 10kwh spare PV and it runs to grid then there's 10 units "credit" on the meter for later use when you draw from the grid. Put the same 10 units into your own batteries and youve got to spend £1000's and suffer the charging/inversion losses when you want to use your PV later. Just make sure your usage is more than generation in the summer so the meter has a small net increase in the reading. Not sure how legit your set up is but net metering seems a reasonable thing to me
  7. Don't forget that any contract you sign accepting a certain level of noise for a meagre sum will likely apply to any future buyer of your house and limit its saleability.
  8. SPEN charged me £300 for a G99 a couple of years ago. Couldn't fault SPENs design guys
  9. Data sheet says that's got an RS485 interface to an energy meter and the battery, so you'd be able to use your cat 5 cable to run RS 485 between an energy meter on the incoming supply and an inverter in the shed. With a base voltage of 240vac ish you're not likely to have volt rise issues at your inverter based on your calcs
  10. Having an RS485 connected energy meter monitoring the import/export is the std way that Solaredge do charging/export limitation. I don't know if Givenergy have that option or rely on a CT directly connected to the inverter. If they rely on a direct CT connection then either the CT signal would likely travel a reasonable distance or they'll be limiting the use of their inverters by needing them to be mounted near to the incoming supply. You should be able to get that info from Givenergy??
  11. If you mark up the area where the panels will be mounted with typical panels, you'll have a fair idea of what you likely max output will be. You can then tell them that figure and they can move the supply design forward with a bit more certainty. In your shoes I'd be using figures of 450watt/panel with the panels 1150 wide x 1800 tall which includes gaps between them. Otherwise get a local installer to size thing up off your drawings
  12. The DNO and MCS are completely different things independent of each other. DNO interraction is to ensure grid safety/security isn't compromised. Search the forum for G98 and G99 and there's a mountain of info MCS is to ensure your generation is from renewables and meets certain standards
  13. Unless you've got a massive array its almost certain you'll use everything you generate in the winter and a fair chance you'll need more on occasion. The 4.5 kw you've got on a pallet will just scratch the surface in the winter. Even with a big array how are you going to power things if you have a run of bad weather. What if you have a breakdown without the back up of a grid connected system? Assuming your house already has a mains supply, connecting up PV costs can be minimal. Export less than 3.68kw and DNO costs are £0. Getting a spark to make the final connection to your consumer unit can be a couple of hundred £, less if youre well acquainted. The rest you can do yourself with research.
  14. Restrictions like these need to change rapidly. If the IPCC are correct then the bulk of planning considerations need to be dispensed with for essential infrastructure. I beleive current planning can limit the duration of a turbines presence so they can be "temporary", renewed periodically whilst we're in a climate emergency.
  15. Compulsory purchase is going to add to the £ burden. Those that object to essential infrastructure, which benefits them and wider society, pay a NIMBY tax which is applied as a credit to the energy bills of those that live with ugly infrastructure:)
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