Plug-In Solar with a North-Facing Garden: Is It Worth It?
North-facing gardens get less direct sun, but plug-in solar can still work. Here's what output to expect and how to optimise.
The North-Facing Challenge
A north-facing garden receives less direct sunlight than south-facing ones. Panels on the ground in a north-facing garden face away from the sun's arc, significantly reducing output.
But don't write off plug-in solar entirely. There are strategies to make it work.
Expected Output Compared to South-Facing
| Panel position | % of optimal output | Annual kWh (800W, Midlands) |
|---|---|---|
| South-facing, 35° tilt | 100% | 850 kWh |
| East/West-facing, 35° | 80-85% | 680-720 kWh |
| North-facing ground, 35° | 50-55% | 425-468 kWh |
| North-facing, flat (0°) | 65-70% | 553-595 kWh |
Strategies for North-Facing Gardens
1. Mount Panels Flat
Counter-intuitively, flat-mounted panels (0° tilt) perform better in a north-facing garden than tilted panels pointing north. Flat panels capture light from the entire sky dome.
2. Use the Front of Your House
If your front faces south, consider a wall mount on the front wall or panels on a front-facing flat roof extension.
3. Use the Garage or Shed Roof
A garage roof or shed roof may have a south-facing pitch even if the garden faces north.
4. Balcony Panels (If Applicable)
For flats with a north-facing garden but a south-facing balcony, mount panels on the balcony railing instead.
5. Accept Lower Output
Even at 55% of optimal, an 800W system in the Midlands generates ~468 kWh/year. At 55% self-consumption and 24.5p/kWh, that's still £63/year in savings — an £600 kit pays back in ~9.5 years.
Is It Worth It?
| Scenario | Annual saving | Payback (£600 kit) | 15-year net saving |
|---|---|---|---|
| North garden, flat mount | £80 | 7.5 years | £600 |
| North garden, tilted north | £63 | 9.5 years | £345 |
| South-facing alternative | £130 | 4.6 years | £1,350 |
If you have no south-facing alternative, plug-in solar still provides a positive return — it just takes longer.
- 800W dual-panel plug-in solar kit
- 600Wh battery with smart scheduling
- App monitoring with real-time generation data
- Balcony, garden & flat-roof mounts available
Would a smaller system be more cost-effective?
A 400W system at half the cost has the same payback period — the savings and cost are proportionally lower. The 800W system saves more in absolute terms.
Can I use east-west facing panels instead?
If your garden has east or west walls or fences, mounting panels on these can be more effective than north-facing ground placement.
Related reading
See how much plug-in solar could save you — with real data for your postcode.