array

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  1. M

    DIY solar — looking for PV array test report

    I did a DIY solar install without appreciating the need for building regs. Yep that was daft, but here we are. Hopefully will get the structural side sorted out. On the electrical side, building control are asking for an 'electrical certificate/report regarding the electrical installation and...
  2. A

    DC isolators required between inverter and array

    Hi, would anyone know if a single dc isolator (local to the inverter) is sufficient or would an additional dc isolator be required at the panels. The situation is an installation which has the dc cables from the panels routed through the property and clipped (8-10m run). All labels including...
  3. clanky

    Sums Check on Cable Size for Remote Solar Array.

    Hello, hopefully ive got this right but if someone can check over my maths for me, id appreciate it. Im needing to install a new supply cable from my remote solar array and because of the distance, it needs to go underground for about 35m then into a nearby barn where it will be joined into a...
  4. bigspark17

    Solar Array swa sizing

    Any help on solar array swa sizing? 4kw array needed around 20M swa from house to array. thanks
  5. M

    Safe system of works around pv array

    Due to an incident of an induced voltage on the array framework and someone getting a shock what’s people safe system of works in place to minimise this happening ?
  6. J

    Help with Series-Parallel Circuit Array

    Hello, I'm looking for some wiring help with a DIY project. I want to create a 6-light bulb array (incandescent, 60W bulbs) that would allow me to dim the lights, and also independently control on/off of pairs of lights. There are 3 pairs of lights (6 total)-- if all are switched "on" then...
  7. B

    New to Forum

    Hi, I'm a 72 years old electronic engineer (BSEE, MSEE, PE) living in New Zealand. Have had a 5.3Kw solar array on the roof of our house for two years and learned a fair amount about maximizing the available energy. Currently working on an intelligent controller to automatically switch loads...
  8. R

    PV Inverter cutting off array sunny days

    Hi new member here looking for advice. I’m having a nightmare with my installer and Solis and wondering if anyone can come back with any ideas. 5kw solis hybrid inverter, 7kw BYD battery and 6.3KW 20x 315w panels on the roof (two strings). system points SSE at 45 degrees. On very sunny warm days...
  9. D

    TL inverters And array frame bonding

    Hi again. Right, I am seeing very mixed reactions and comments about the below question, I am just hoping to find a basic answer and reference please. If you are installing a TL (fronius primo 3.6 in my case) to a domestic property, in the loft space with 16panels already installed on the...
  10. B

    Solar Where to purchase 2 pole DC Contactors suitable for switching 20-25amp 600volt DC PV array preferably with 230volt AC coil.

    I am trying, with little success, to purchase 2 pole DC Contactors suitable for switching 20-25amp 600volt DC preferably with 230volt AC coil. I require these for switching the supply from PV array. If you are able to supply or suggest where I might be able to get them I would be most grateful...
  11. Javadali

    MPPT Solar Charge Controller Sizing for 1200 Watt solar Array

    Hey everyone! I am drafting out my first solar power off grid system for my back yard shed and came here in hope to get some good recommendations from you guys on trusted a charge controller which will support my current specs but also give me room to grow as I improve on this system. Below are...
  12. A

    My solar array doesn't seem to generate enough energy

    Hi, I've recently had a 4KW PV array fitted in March this year however I don't believe it's producing the expected results. Yesterday 29/06/2019 was the hottest day so far with cloudless skies and the system at noon peaked at 2.2KW. I would expect to achieve around my peak which is set at 3.8KW...
  13. W

    Adding to an existing PV array - Feed in metering

    We have customers who want to add to an existing PV array. I know they cannot receive FIT generation payments, but what about additional power returned to the grid - can they be paid for any additional power fed back?
  14. G

    Photovoltaic array test form F43

    Hi all, Just wondered if anyone could offer advice on filling in the PV test array form? There is a section on protective device. I assumed it was the MCB but there is a box for DC rating and kA capacity. This leads me to believe it refers to the DC isolator?? but thats an isolator not a...
  15. G

    Solar Array confusion

    Hi guys I have connected 8 x 250 watt 35 v solar panels in series to connect to an enfinity 2kw inverter. The open voltage I get from the array at the dc isolator is 220vdc or so, but when testing at the dc inverter terminals I am only getting around 68vdc. I have had the inverter (enfinity)...
  16. S

    Inverter for 450w array - any ideas

    Ive been asked to price for a small system using 9 x 50w solar tiles (new build slate roof). Does anyone know of an inverter that will be suitable?
  17. D

    Removal of panels - Small job, anyone?

    Hi, Is there a Solar electrician/installer available to help out for this small cash job, please? I'm after 2Kw worth (9 from memory) panels and their supporting frames to be uninstalled/removed from a north facing side roof in London E13. Pretty flexible with dates, still nothing planned as...
  18. L

    DC fuse blowout

    I was asked earlier this week to look at a solar system on an office/warehouse that had stopped working (not my install). The strings all come into a Fronius DC box on the roof. When I opened it up it was pretty clear why the system had stopped producing: I'm looking for opinions on what may...
  19. S

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

    SP Networks are the DNO. Smallholding with single phase and 60 amp cable head fuse. What's the largest size likely to get approval?
  20. K

    5kw solar array and limit to 16amp?

    I had someone around yesterday to discuss installing a PV system for me, the discussion was mostly just an overview of technologies and different pricing such as loaning the roof and paying nothing, paying outright or paying with 5 years 0% finance. I've done a bit of reading and know a bit...
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