South-Facing Roofs
South-facing roofs generate the most solar energy — up to 100% of potential output. In Manchester, a south-facing 4kW system generates approximately 3,400-3,800 kWh annually. Most Manchester homes have at least one suitable roof face.
East and West-Facing Roofs
East and west-facing roofs still perform well, generating 80-85% of a south-facing system. Many Manchester semi-detached homes have east/west orientations. Split systems across both faces can maximise all-day generation.
Roof Materials and Condition
Most Manchester roofs — slate, concrete tiles, clay tiles — are suitable for solar. The roof should be in good condition with at least 20 years of life remaining. Flat roofs can use angled mounting systems for optimal performance.
Shading Considerations
Manchester's tree-lined streets can cause shading. Modern micro-inverter or optimiser technology minimises the impact of partial shading. A professional survey identifies any shading issues before installation.
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