array

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  1. S

    New System - 2 Arrays - Wondering why low voltage on 1st array

    Just had a new 4kw solar pv system fitted, with two arrays of 7 panels, one above the other in the same direction. I flicked through the statistics and noticed that the first array was only producing 1w, when the 2nd array was producing around 900w. So I checked voltage and found that was on...
  2. edexlab

    eversolar 17000tl

    Can anyone help me with finding a pdf of the installation manual for an eversolar 17000tl I've been on lots of sites and can't seem to find a proper manual just data sheets, I've been asked to take a look at a 50 kw system which has issues, and had a look for a manual last night gave up in the...
  3. G

    average PV array costs now.

    Hi All It's been a while since i was involved with PV systems. I'm thinking of installing a PV array on my roof (10 panels) how much does a 10 panel system cost nowadays ( excluding labour) Please PM me. Thanks Davers
  4. W

    BenQ Panels - grounding

    Don;t you love it :) Got an isntallation to do next week with BenQ 325's and now our suppliers are offering PM318B01 in lieu of the PM096B00, and it would appear that the 318's need grounding.. I Don't have a problem with the array, (used to do that anyway ..) however it also says...
  5. J

    Array frame earthing

    Hi, still confused about array frame earthing. I will be fitting my first install soon on a garage roof, even using the DTI decision tree its unclear as to earthing the frame. Will be using a electronic ( transformer-less ) inverter from power one ,3kw system. Decision tree from DTI mentions...
  6. G

    Hyundai PV Panel Array - RISO test help

    I have two 8 panel strings laid flat on a flat roof connected to a Power One inverter. One of the strings is showing a RISO of 0.5 mohm or less. The cables and connectors are all dry and intact, so I think is is a faulty panel. The voltage test doesn't identify the actual panel. If I take off...
  7. P

    Low RISO fault

    Have a problem with a customers array as both the Power One 27.6tl and the 20.0tl are registering low Riso faults. The array has been earthed on the roof and is made up of Renesola 255s. When tested across the +ve and -ve of each string to earth the same voltages were obtained for all strings on...
  8. S

    Help needed with Multiple array/ invertor/generation meter, single import meter

    Dear all, I need a bit of advice on a multiple install that I have been discussing with a customer. He is building 4 holiday lodges in his garden and would like each one to have 2.5kWp system. Each chalet is fed via a private SWA from a remote cabinet housing the supply meter for the lodges only...
  9. B

    Islanding 4kw array

    Hi All, Whats the situation on islanding an installation, customer in interested in not being grid connected but wants 4kw array?
  10. B

    Ground mount/flat roof array with adjustable feet / height?

    Can anybody help......I am trying to design a solar install. on a single height ground mount frame.A flat roof array system has been suggested to me which we will mount on concrete.Our problem being the site of install has quite a large run on it and could end up a lot of work to get the...
  11. D

    PV Array Testing and Micro inverters

    Struggling to find a great deal of information regarding how to conduct testing and complete the PV Array Test Report. I thought there would have been many people facing the same issues. I don't have a copy of BS EN 62446 at present. Does this include any information specific to testing micro...
  12. L

    PV Array trips RCD's

    Hi, anyone got any advice re this problem that I can't solve.... I have 2 PV arrays installed, a 4.2Kw and a 5.0Kw. The electricity supplier here made me install them on 2 seperate single phase supplies. My house now runs on 2 seperate supplies, half on one supply and the other half on the...
  13. B

    PV Array Isolation

    Would appreciate advice and opinions from MCS Installers on the following: Existing PV System on/in a domestic property that is now being fully refurbished and extended. DC isolator, Inverter, Generation Meter and AC Isolator board mounted on what is now a garage wall, but will be an internal...
  14. T

    Voltage on CPC from PV Array.

    Hi Guys I wonder if someone with more experience of PV might be able to give me some advise. Was called out today to a domestic building with a remote barn on which a 4kW PV array is sited. The Inverter is in the barn and a long (50m) 2.5mm twin and earth in pipe (historic) feed back to the...
  15. D

    Voltage Optimisers with PV array and high grid Voltages

    Just wondered what you guys feelings were on fitting one of these units to control grid voltage down to a constant 220v at the consumer unit was, I know we have discussed similar before, but thought it may be time to relook at these units ?? I haven't got high grid voltages to contend with...
  16. D

    Battery Solar Panel Array to charge 24v batterys

    Solar panel details Hello everyone Im a new member to the forum, i have done a course on industrial electronics so im no expert on solar panel arrays etc, Im thinking now of making up a solar panel array (off grid) to charge 24v batteries(2x12v) and use them with 24v to 240v true sine wave...
  17. N

    Large solar array 40KW 160 panels, welcomed thoughts!!

    Your thoughts Designing the module layout on a building.... I see many designs where all modules are clumped together like one big roof sheet. Surely its better to to split the module into string sections with a 200-300mm gap between arrays/strings to allow for maintenance (access to each...
  18. F

    PV Array Update: SAP Target Met

    Despite a very poor summer, my solar array has just met its SAP2009 target - not that we place much weight on the SAP estimates, but at least it's a marker. - System comissioned: 16-17th January 2012. - (3.75kW) 15x 250W Kinve KV250-60M - two strings; 7+8. - (3.6kW) PowerOne Aurora PVI-3600-UK...
  19. C

    Array insulation resistance

    Can anyone help me? I've got an annual inspection this week What's the procedure for carrying out an array insulation resistance with a Megger 1552? Many thanks
  20. M

    Tariff advice and metering for second array

    Hi, im after some clarification on the tariffs for a second array please. Basically there is a 16kWp array istalled on a college early last year, the college now want a second 30kWp array on the same building, what tariff rate would they expect to recieve for the second array? Also wondered if...

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