Can I Get Solar Without a South-Facing Roof?

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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How Solar Performs at Different Angles: 

Roof Orientation

Efficiency Compared to 

South 

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

              Book a Technical Roof Assessment

              Savings Still Add Up 

              Even at 80% efficiency, solar PV can:

               

              • Save £400–£600/year on electricity 
              • Earn income via the Smart Export Guarantee (SEG) 
              • Reduce CO₂ emissions by over 1 tonne annually 
              • Shorten payback period if combined with battery storage 

                  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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