Discuss Commercial Installation in the Solar PV Forum area at ElectriciansForums.net

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Berneray

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Afternoon all....

Are there any helpful threads regarding commercial installations. We've been asked to look at one for a working mens club.

They have plenty of roof space but has an east/west aspect. Last years electricity bill was over £16,000 and virtually all for lighting as heating and cooking are gas. Club is open from 10am till 11pm but has no natural light so lights are on for over 12 hours a day.

I'm looking to run figures for 10kwp, 20kwp and 30kwp systems at the new rates.

As their main draw is lighting is Voltage Optimisation a good idea. They also have three hot water tanks so Immersun would seem to make sense.

Thanks guys...
 
E

Earthstore

Are they single or 3 phase?
If they are single phase (which I doubt) choosing the right Voltage optimiser could save them around £1600 per year, so payback would be less than 6 months.

If they are 3 phase voltage optimisation is more expensive so payback would take longer.

All this does depend on amps used at any one time, so you need to do some testing and crunch some numbers.

One other thing to check is how much they are paying for their electricity, they could make an instant saving just by changing supplier.
 

Worcester

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Recommendation: PV with Immersun and LED lighting - when you cost the LED lighting savings also remember to add in the saved maintenance / tube replacement costs - you should get a 4-5 yr ROI on LED lighting.. Don;t go for the cheap as chip's stuff it will cause problems !!

VO will have no effect on LED Lights, or Resitive Loads (Heating) VO also has little / no effect on T8 HF tubes or T5 tubes.
 

Worcester

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Good idea snowhead, we've found that better than PIR are the microwave ones as that way when you are in the loos, the lights don't go off!
 
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