Recent content by Worcester

  1. Worcester

    Testing the Inverter

    When we do 'health checks' for people buying a house with PV, we do a full standard installation commissioning check, Voc, Isc, Irradiance, Resistance to earth, cable routing, condition, component rating, labelling etc. And have come a cross a few nightmares, like 6mm AC T&E used for the DC...
  2. Worcester

    Solar PV Immersion diverter

    Myenergi Eddi everytime.
  3. Worcester

    Solar hot water controller

    There are loads of good quality solar thermal controllers out there. and one can almost certainly be configured to your setup. Give SeconSolar or Navitron a call. We use RESOL controllers for lots of functions other than solar - after all they only differential temperature controllers...
  4. Worcester

    Off grid shed?

    Voltage (Voc) doesn't change much with irradiance, it is primarily the current that changes. Morningstar Charge Controllers | Wind & Sun - http://www.windandsun.co.uk/products/Solar-Charge-Controllers-/Morningstar-Charge-Controllers#.Wcg5A2iPJPY
  5. Worcester

    AURORA POWER ONE 3.6 Fault

    Depending upon when it was bought / who from, it will either have a 5 year warranty (they have an exchange programme) or yoohoo a 10 year warranty. Give ABB a call on +44 1903 823323 and they'll sort you.
  6. Worcester

    Maximum distance between collectors and tank?

    There are LOTS of control and safety issues to consider when installing a solar thermal system. You can't soft solder for instance. You can't use normal flexible heat main, you'll probably need to use pipework similar to this: 50m will only set you back about £20/m plus VAT plus delivery...
  7. Worcester

    Off grid shed?

    Give the guys at Wind & Sun a call, or Fred at Hollybrook Power Supplies. Fred does loads of off grid stuff, caravans, houseboats etc
  8. Worcester

    Solar Thermal Performance During Winter Months? Solar Thermal Forum

    Thanks @SpecialistEnergy Analysing 4 years of minute by minute daily data: In summary a BIG system can do a maximum of 75% and should be able to do 65%, meeting 50% of your winter demand and 80-100% of the summer demand. To do the 100% of the summer demand requires a thermal store 3 x the...
  9. Worcester

    EV Charging point installers

    All of our work is self generated :) And I'm recruiting :)
  10. Worcester

    Solar Thermal Performance During Winter Months? Solar Thermal Forum

    Thanks @SpecialistEnergy , the book, makes sense, (common sense) unfortunately it may not reach as wide an audience as it should, and will probably be read by the already converted :) When you have a mo, the csv would be most useful.
  11. Worcester

    Solar Thermal Performance During Winter Months? Solar Thermal Forum

    Thanks @SpecialistEnergy , the book, makes sense, (common sense) unfortunately it may not reach as wide an audience as it should, and will probably be read by the already converted :) When you have a mo, the csv would be most useful.
  12. Worcester

    Solar Thermal Performance During Winter Months? Solar Thermal Forum

    If you've got a csv fike of the data I'd be really interested to see that. PM it to me if you need to We are seeing a resurgence of Solar Thermal on super efficent new houses were the heat pumps aren;t big enough to reheat a 250l+ DHW cylinder in a reasonable time. A new 100sqm house often...
  13. Worcester

    Fire Incidents involving Solar Panels

    Doesn't help also when you come across installations like this: We've safely isolated it and told the homeowner not to switch it on until re-wired, it was a 3 year old new build, with 4 others built at the same time, they will also need checking, but who's going to pay?
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    1-IMG_2319.JPG

    • Worcester
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  15. Worcester

    Thermodynamic Test results - Not good

    It'll be more efficient during the day so can you at least put a timer with contactor or an immersion timer depending upon its power consumption so that it can't come on at night? A 300 litre cylinder empty to full uses about 15kWh How big is the cylinder? When do you use your hot water and...

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