No, solar panels should not face north in the UK, as north-facing panels generate significantly less electricity than south-facing ones. Energy Saving Trust states that a south-facing roof produces around 100% of optimal output, while north-facing panels yield only 50-60% of that (Energy Saving Trust, 2026).
The primary factor is the sun’s path across the southern sky in the Northern Hemisphere. North-facing panels receive direct sunlight only during early morning and late evening in summer, resulting in poor annual generation. This orientation is only viable for households with no other roof aspect available, and even then, it is rarely cost-effective without a high feed-in tariff or battery storage.
East or west facing is a better alternative
If your roof cannot face south, east or west orientations are far more productive than north. A west-facing system generates around 85% of a south-facing system’s output, while east-facing produces about 80% (Energy Saving Trust, 2026). These aspects also spread generation across morning and afternoon, which can align better with household electricity use. In contrast, north-facing panels may only produce 50-60% of the maximum, severely extending payback periods. For example, a 3.5kWp north-facing system might generate only 1,750 kWh/year versus 3,000 kWh/year for south-facing.
North facing solar panels are rarely worth it
Installing solar panels on a north-facing roof is generally not recommended unless you have no other option. The reduced output means lower savings on electricity bills and a longer return on investment. According to the Microgeneration Certification Scheme, a typical UK system costs around £7,000-£8,000 for a 3.5kWp array (MCS, 2026). At north-facing output, annual savings drop to roughly £200-£250, compared to £400-£500 for south-facing. Payback could extend beyond 25 years, exceeding the typical panel lifespan.
Flat roofs and ground mounts offer flexibility
If you have a flat roof or ground space, panels can be tilted to face south regardless of the building’s orientation. For flat roofs, frames can angle panels 30-40 degrees south, achieving near-optimal output. Ground-mounted systems offer full control over orientation and tilt. The Energy Saving Trust notes that panels on a south-facing pitch at 30-40 degrees produce maximum annual yield (Energy Saving Trust, 2026). These options avoid north-facing constraints entirely, though installation costs may be higher by £500-£1,000 for flat roof mounting kits.
A worked example
A typical 3.5kWp north-facing solar panel system on a 1930s semi-detached house in Manchester will generate around 1,750 kWh per year, compared to 3,150 kWh from a south-facing system of the same size. At the current Ofgem price cap rate of 24.5p per kWh and the Smart Export Guarantee (SEG) rate of 15p per kWh, this north-facing setup saves roughly £430 annually on electricity bills and earns about £263 in export payments. After deducting the 0% VAT saving (until March 2027) and assuming no other grants apply, the upfront cost is around £5,500. The payback period stretches to 13 years, versus 7 years for a south-facing array. Over 25 years, total savings reach approximately £17,325, but this is £10,000 less than a south-facing system would deliver. The Energy Saving Trust confirms that north-facing panels produce only 50-60% of optimal output, making this orientation financially questionable for most households.
| Item | Figure |
|---|---|
| Upfront cost after grants | £5,500 |
| Yearly savings | £693 |
| Payback period | 13 years |
| 25-year lifetime savings | £17,325 |
What homeowners often get wrong
The most common mistake is assuming north-facing panels still make financial sense because they generate some electricity. Here are three critical misunderstandings that can cost you thousands.
- Assuming any generation is worthwhile Many homeowners think 50-60% output is acceptable, but the payback period often exceeds 15 years, meaning the system may never break even before needing inverter replacement at year 12. The right approach is to compare net present value, a north-facing system typically returns £5,000 less over 25 years than a south-facing one.
- Ignoring east or west as a compromise People often default to north when south is unavailable, missing that east or west-facing panels generate 80-85% of optimal output. This mistake can cost £2,500 in lost savings over the system lifetime, as east or west orientations pay back in 8-9 years instead of 13.
- Believing battery storage fixes the problem Homeowners think a battery will make north-facing panels viable, but the core issue is low total generation, even with a battery, you cannot store what you do not produce. The result is a £1,500 battery investment that fails to improve payback, and the system still underperforms by 40-50% annually.
Quick reference
- North-facing solar panels in the UK produce only 50-60% of the electricity that south-facing panels generate.
- A 3.5kWp north-facing system yields roughly 1,750 kWh per year compared to 3,150 kWh from south-facing panels.
- East or west-facing roofs are a far better alternative, generating 80-85% of optimal output with a payback period of 8-9 years.
- Installing a north-facing system can extend your payback period to 13 years or more, often exceeding the inverter’s 12-year lifespan.
- No UK grant scheme, including the ECO4 or BUS, specifically supports north-facing solar panels over other orientations.
Frequently Asked Questions
Yes, but they generate only 50-60% of optimal output according to the Energy Saving Trust. This makes them rarely cost-effective without battery storage or high tariffs.
South-facing roofs produce 100% of optimal output, as confirmed by the Energy Saving Trust. East or west orientations are good alternatives at 80-85% output.
A north-facing 3.5kWp system generates about 1,750 kWh per year, versus 3,000 kWh for south-facing. This is based on Energy Saving Trust data.
