EF members' installs - show us your work!

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Discuss EF members' installs - show us your work! in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

Hi

looks like a 30 or 40KW system, just wondering did you fit surge protection or did the inverter have it internal also all your panels are together so for maintenace would it be better to section off each string?? just a thought
 
Some nice work there chaps!
The trouble with those ground mounted arrays, for me, would be the worry of vandalism. Too many headcases out there.
Do you get much trouble that way?
 
Case Study | Quaker Meeting House, Leeds


In August 2011 Leeds Solar installed a 4kWp solar PV system on the roof of the Quaker meeting house, opposite Leeds University in Leeds. The system consisted of 16 x REC mono-crystaline black framed panels (250Wp I think), chosen for their lower than average carbon footprint, and an SMA SB3300 inverter.

quakers.jpg


The building is in regular use during the day time and early evening most days of the week for a variety of community activities and meetings, so the consumption patterns are a good match for solar PV generation times.
The graph below shows more than a 50% reduction in electricity consumption over the year, with a 60% reduction in electricity consumption even in the poor summer of 2012, and perhaps more surprisingly a 40% reduction in consumption even in the peak of winter, with no particular changes to usage patterns or other factors that would have impacted significantly on the consumption levels..

Monthly electricity consumption before and after PV installation

solar-pv-energy-savings-community.gif


The reason the reduction is still so high even in winter is that on cloudy days the solar system still generates a few hundred watts of power, but all this generation is then used within the building, whereas in peak sunlight the majority of the additional generation is exported.
Where peak generation is significantly above the average daytime consumption levels there may not actually be much difference between the energy savings on a sunny day vs a cloudy day.
In very high consumption situations where most of the generation is consumed on site even in peak sunlight, there would be a lot more difference between summer and winter energy savings.
 
dpelectricalltd said:
Picture 15 had a shed built around them straight after that photo !
Click to expand...
glad you said that. I was going along with the whole outside thing until I spotted the meter.

Some decent workmanship on display there IMO. Interesting that you do the same as us on the commercial mounts in terms of cruciform mounting on most of it.

I might have to nick the idea of using a tray to run the cables up and over the cutter, that looks quite a good solution
 
Some nice looking installs there, Gav and DP.

DP, I noticed the netting underneath the trapezoidal roof on those pictures. I've never thought that would be necessary unless there were any sky lights.
 
Hi SolarCity , Earthstore was mostly correct apart from it was what we prefer to call a "Pre" fibre cement roof !:ihih:

It was hard enough to load them up let alone tag the photos so they are in a bit of a random order i am afraid , but if you look at the barn with all the intricate scaffolding at the side and front of it , i did not take a photo of the internal netting work which was over the Drier And holding bins but it was literally a work of art !

From memory the netting and scaffolding for that 10 kw system came to over £2.500 +vat alone , it was one of the last we installed before the deadline and we even sent one of our lads (free of charge) up to Gritish bas at I think it was Manchester to hand deliver the fits application because the client did not trust the automated system .

When we had sky lights we just 3/4 in ply lined them , with or without a net it F!"£$^g hurts when you go through no matter what !
 
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