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Chorley Case Studies
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Case Study
Aerial photo (obtained from Google Earth)
Overview
The property has a slate roof, the rear elevation of which faces almost exactly south. The pitch of the roof is approximately 40°.There is a large dormer in the centre of the roof which casts a shadow to the west in the morning, and to the east in the afternoon. The other quotations that the customer obtained had panels to each side of the dormer, but this shading would seriously compromise the yield, so we specified a system with panels above and beneath the dormer. This avoids any shadow from the dormer, thus maximising each day's sunlight.
The Roof Installation
Upper row of panels
All solar panels in place
The solar panels are mounted onto the roof in landscape format, with four panels above the dormer and five below.
Being a slate roof, all the roof mountings were flashed with lead to maintain weatherproofing.
The Electrical Equipment
An EverSolar 1700GB inverter was chosen for this installation. The equipment, pictured below, is as follows:
The inverter and isolators
- D.C. cables from solar array
- D.C. isolator (for maintenance purposes)
- EverSolar 1700GB Inverter
- A.C. isolator (for maintenance purposes)
Meter and consumer unit
- OFGEM approved meter to record generation
- Energy monitor transmitter
- RCD for protection
Annual Yield
Total annual yield from system = 1549kWh, worth over £660 per year.
Annual yield by month