Energy and the array arithmetic

Stated honestly, month by month, with a December worst case

One rigid panel is about 405 W. The flagship canopy carries two, so about 810 W peak and roughly 640 kWh a year in the southern UK. Everything below is a model until 12 months of pilot logging replaces it.

Array

Verified

0 W

Modelled annual yield

Estimated

0 kWh

790 kWh/kWp at 10° pitch, southern UK

December generation

Estimated

0.0 kWh

0 phone charges per day

Winter autonomy on reserve

Estimated

0.0 days

Lighting and mesh with zero yield

The ten-panel framing

A five-bench figure, not a per-bench claim

Five benches carry 0 reclaimed modules, about a 4.05 kWp array, the same panel count as a typical domestic rooftop system. A pub garden with five benches has put a house-sized solar system to work on land it was already using.

The Landscape 1 variant uses a single 700 W module, so two benches approach the output of the flagship with half the fixings and a simpler canopy.

VerifiedPanel count and kWp are arithmetic. Yield is modelled.

Month-by-month generation

Autonomy and charging throughput

No records

Energy assumptions

Change these in the finance module; everything recomputes

No records

Phone charges per day assume 20 Wh per charge including conversion and cable losses, dispatched after lighting and mesh load. Autonomy assumes the 2.4 kWh pack with a reserve floor and occupancy-dimmed lighting.

Specified energy parameters

The irradiance and overshadowing basis every generation figure on this platform is calculated from.

Irradiance basis for every generation figure

Value in use: Manchester 53.48 N: 940 kWh/m2/yr plane-of-array at 30 degrees south. December daily mean 0.42 kWh/m2. Moorland edge at 350 m: 1,010 kWh/m2/yr, December 0.47.
Method: PVGIS SARAH long-run series for the city centre and moor-edge coordinates, de-rated 12 percent for reclaimed module condition and 4 percent for soiling.
If it moves: A 10 percent low year cuts December charge hours from 5.1 to 4.6 per bench-day and never breaches the beacon reserve, because charging sheds first.

Urban overshadowing factor

Value in use: Sky-view factor 0.62 for a 12 m terraced street, 0.78 for a district-centre parade, 0.94 for an open civic square or moor edge
Method: Street-canyon geometry from typical Manchester terrace heights and carriageway widths, converted to an annual shading de-rate applied before the yield model runs.
If it moves: Each 0.05 of sky-view factor moves annual yield by about 6 percent, which is one fewer charging hour per winter day in the worst canyon.

Parameter	Value in use	Method	If it moves
Irradiance basis for every generation figure	Manchester 53.48 N: 940 kWh/m2/yr plane-of-array at 30 degrees south. December daily mean 0.42 kWh/m2. Moorland edge at 350 m: 1,010 kWh/m2/yr, December 0.47.	PVGIS SARAH long-run series for the city centre and moor-edge coordinates, de-rated 12 percent for reclaimed module condition and 4 percent for soiling.	A 10 percent low year cuts December charge hours from 5.1 to 4.6 per bench-day and never breaches the beacon reserve, because charging sheds first.
Urban overshadowing factor	Sky-view factor 0.62 for a 12 m terraced street, 0.78 for a district-centre parade, 0.94 for an open civic square or moor edge	Street-canyon geometry from typical Manchester terrace heights and carriageway widths, converted to an annual shading de-rate applied before the yield model runs.	Each 0.05 of sky-view factor moves annual yield by about 6 percent, which is one fewer charging hour per winter day in the worst canyon.

Modelled