Solar Panels and Trees

How do trees affect solar panels?

Trees are the most common source of solar panel shading in the UK. Impact depends on: (1) POSITION — south of your roof (worst), east/west (moderate), north (no impact). (2) TYPE — deciduous trees shade in summer when leaves are full (when solar is highest). Evergreens shade year-round. (3) DISTANCE — trees within 10m cast significant shade. Beyond 20m: minimal impact. (4) HEIGHT — tall trees at low sun angles (winter mornings/evenings) can shade panels from a distance. Output loss: 5-30% depending on shading extent. Solutions: TRIM BRANCHES — £100-£500, immediate improvement. MICRO-INVERTERS — £800-£1,200 extra, eliminates string effect (only shaded panels affected). PANEL PLACEMENT — avoid the shaded roof zone entirely. REMOVE TREE — last resort. Check for TPOs (Tree Preservation Orders) first.