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12 panels · 5.4 kWp
Roof area needed ~23 m²
12
12 × 450W
10 kWh
3,400 kWh
Typical UK home uses ~2,700–4,100 kWh. Higher if you have an EV or heat pump.
Your estimate
£1,117
Est. annual saving
5,292
kWh generated / yr
11.6 yrs
Est. payback
5.4 kWp
System size
64%
Self-powered
0.79 t
CO₂ saved / yr
Indicative system price£12,990
Monthly generation
J
F
M
A
M
J
J
A
S
O
N
D
These figures are transparent, MCS-aligned estimates for guidance. Your exact generation, savings and price are confirmed after a full survey of your roof, shading and electrics.