SolarSolar Panels in CF5 Cardiff
Cardiff • Wales • 1274 sun hours/year
Homes in CF5 save an average of
with solar panels • 9.3-year payback
Get 3 Free Solar Quotes in Cardiff
Compare prices from MCS-certified installers near you. No obligation, completely free.
Solar Panel Potential in Cardiff (CF5)
Postcode district CF5 receives approximately 1274 hours of sunshine per year, making it a viable location for solar panels in the UK. A typical 4kW system here generates around 3,567 kWh of electricity annually.
Of this, roughly half (1,784 kWh) is used directly in your home, saving you £419 on electricity bills at the current rate of 23.5p/kWh. The remaining 1,783 kWh is exported to the grid under the Smart Export Guarantee, earning you an additional £214 per year at 12p/kWh.
Solar Panel Costs in CF5
The average cost of a 4kW solar panel system in the Wales region is approximately £5,900. This includes panels, inverter, mounting, and installation by an MCS-certified installer. Prices have fallen over 60% in the last decade, and 0% VAT currently applies.
At £633 annual savings, the system pays for itself in 9.3 years, then generates profit for a further 15 years — a total 25-year return of £9,026.
Year-by-Year Savings Breakdown
Payback Timeline
| Year | Generation (kWh) | Annual Savings | Cumulative |
|---|---|---|---|
| 1 | 3,567 | £633 | £-5,267 |
| 2 | 3,549 | £630 | £-4,637 |
| 3 | 3,531 | £627 | £-4,010 |
| 4 | 3,514 | £624 | £-3,386 |
| 5 | 3,496 | £621 | £-2,765 |
| 6 | 3,479 | £618 | £-2,147 |
| 7 | 3,461 | £615 | £-1,532 |
| 8 | 3,444 | £612 | £-920 |
| 9 | 3,427 | £609 | £-311 |
| 10 | 3,410 | £606 | +£295 |
| 11 | 3,393 | £603 | +£898 |
| 12 | 3,376 | £600 | +£1,498 |
| 13 | 3,359 | £597 | +£2,095 |
| 14 | 3,342 | £594 | +£2,689 |
| 15 | 3,325 | £591 | +£3,280 |
| 16 | 3,309 | £588 | +£3,868 |
| 17 | 3,292 | £585 | +£4,453 |
| 18 | 3,276 | £582 | +£5,035 |
| 19 | 3,259 | £579 | +£5,614 |
| 20 | 3,243 | £576 | +£6,190 |
| 21 | 3,227 | £573 | +£6,763 |
| 22 | 3,211 | £570 | +£7,333 |
| 23 | 3,195 | £567 | +£7,900 |
| 24 | 3,179 | £564 | +£8,464 |
| 25 | 3,163 | £562 | +£9,026 |
How CF5 Compares to the UK Average
Battery Storage in CF5
With 3,567 kWh of annual generation, adding a battery could increase your self-consumption from 50% to 80%, boosting annual savings significantly.
Is battery storage worth it in CF5? →Get 3 Free Solar Quotes in Cardiff
Compare prices from MCS-certified installers near you. No obligation, completely free.
How We Calculated These Figures
Our estimates are based on 1274 annual sun hours for the Wales region, a standard 4kW system with south-facing orientation, and 50% self-consumption ratio. Electricity savings use the current average tariff of 23.5p/kWh, and export income uses the Smart Export Guarantee average of 12p/kWh. Panel degradation of 0.5% per year is factored into 25-year projections.
Actual savings will vary based on your roof orientation, shading, energy usage patterns, chosen system size, and installer pricing. We recommend getting at least 3 quotes from MCS-certified installers for accurate pricing.
Frequently Asked Questions
How much can I save with solar panels in CF5?
Homes in CF5 Cardiff save an average of £633 per year with a typical 4kW solar panel system. This is based on 1274 annual sun hours, generating 3,567 kWh of electricity. Over 25 years, the total profit after system costs is £9,026.
What is the payback period for solar panels in CF5?
The average payback period for a 4kW solar panel system in CF5 is 9.3 years. After that, you enjoy 15 or more years of pure profit from reduced electricity bills and Smart Export Guarantee payments.
How many solar panels do I need for a home in CF5?
A typical 4kW system uses 10-12 solar panels (depending on panel wattage, typically 350-400W each). This suits most 3-4 bedroom homes. For exact sizing, get a quote from an MCS-certified installer who will assess your roof space and orientation.
Is solar worth it in CF5 Cardiff?
Yes. With 1274 sun hours per year (£51 below the UK average savings), CF5 is a viable location for solar. A 4kW system costs approximately £5,900 and pays for itself in 9.3 years, then generates profit for 15+ more years.
What grants are available for solar panels in CF5?
Solar panels in the UK currently benefit from 0% VAT (until at least 2027), reducing upfront costs. You may also be eligible for the ECO4 scheme if you receive certain benefits. The Smart Export Guarantee pays you for electricity you export to the grid — the average rate in your area is 12p/kWh.
All postcodes in Cardiff • Cardiff solar overview • Solar savings calculator • Solar panel costs • Choosing an installer • Grants & incentives • All solar guides
Get solar updates for CF5
We'll notify you of changes to solar incentives and electricity prices in your area.