Short Answer: Yes — and here’s exactly how.
Many homeowners believe solar panels only work if your roof faces due south. It’s a common myth — and one that stops people from unlocking hundreds in annual savings.
The truth? Even east- and west-facing roofs can produce 70–85% of optimal solar output. That’s still enough to generate real financial and carbon-saving benefits.
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Orientation Breakdown
How Solar Performs at Different Angles:
Roof Orientation |
Efficiency Compared toSouth |
Works Well? |
| South | 100% | Best |
| Southeast / Southwest | 85–95% | Very good |
| East / West | 70–85% | Still viable |
| Northwest / Northeast | 50–65% | Needs micro-inverters or system design |
| North | <40% | Generally not recommended unless flat roof with tilt system |
Did you know? A west-facing system may actually produce more usable electricity if your household uses energy in the afternoon.
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Shading and Obstructions
What if my roof is partially shaded?
Shade from trees, chimneys, or nearby buildings can reduce output — but modern technology solves this.
Solutions include:
- Panel optimisers (individual panel performance maximisation)
- Micro-inverters (panels work independently rather than in series)
- Split arrays (different roof sections used for different times of day)
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What About Complex or Flat Roofs?
- Flat Roofs: Perfect for adjustable mounting brackets — panels can face optimal angles regardless of roof structure
- Multi-surface Roofs: We split systems into morning/afternoon-facing arrays
- Irregular Designs: Can often still produce high yield using optimised string layouts
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Savings Still Add Up
Even at 80% efficiency, solar PV can:
- Flat Roofs: Perfect for adjustable mounting brackets — panels can face optimal angles regardless of roof structure
- Multi-surface Roofs: We split systems into morning/afternoon-facing arrays
- Irregular Designs: Can often still produce high yield using optimised string layouts
Read About SEG Scheme
Compare With Heat Pumps
Can I combine east + west-facing roofs in one system?
Yes. In fact, it balances solar generation throughout the day.
Will the system cost more if not south-facing?
Not usually. The design may change slightly but overall install cost is similar.
Will I qualify for SEG or MCS?
Yes — as long as your system is MCS-certified, you’re eligible regardless of direction.
Your Roof Might Be Ready — Even If It’s Not South-Facing
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