BYD Solar Panels Review: Are They Good for the UK?
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He fact-checks all content against official MCS and Ofgem data and maintains relationships with MCS-certified installers across the UK.
BYD (Build Your Dreams) is a Chinese conglomerate best known for electric vehicles and batteries. They also manufacture solar panels and battery storage systems. Here's our independent review of BYD solar panels, including a key warranty concern, and how they compare to Jinko and JA Solar.
Quick Answer
BYD solar panels offer competitive pricing and decent specs (22.0% efficiency, 440W), but their 12-year product warranty is significantly shorter than the 25-year standard offered by Jinko, JA Solar, and Trina. BYD's main strength is their integrated battery + solar ecosystem. If you're already using a BYD battery, their panels can be a convenient addition. For panels alone, Jinko and JA Solar are better value.
Who Are BYD?
BYD (Build Your Dreams) Company Limited was founded in 1995 in Shenzhen, China. They are a massive conglomerate and the world's largest electric vehicle manufacturer. BYD's solar panel division draws on decades of battery technology expertise.
BYD is a Bloomberg NEF Tier 1 solar panel manufacturer with over 1 GWp of installations globally. They are growing their presence in European markets, primarily by offering integrated solar + battery systems under one brand.
1995
Founded
#1 EV
Maker globally
Tier 1
Bloomberg NEF
1+ GWp
Installed globally
BYD MLK-36 Specifications
| Specification | Value |
|---|---|
| Model | BYD MLK-36 series |
| Wattage | 440W |
| Cell Technology | N-type TOPCon (mono-crystalline) |
| Efficiency | 22.0% |
| Dimensions | 1722 × 1134 × 30mm |
| Weight | 21.5 kg |
| Bifacial | Yes (available in bifacial variants) |
| Temperature Coefficient | −0.30%/°C |
| Product Warranty | 12 years |
| Performance Warranty | 30 years (0.50% max annual degradation) |
| Degradation Rate | 0.5% per year |
| Tier Status | Bloomberg NEF Tier 1 |
BYD also offers larger commercial panels: the MLTK-36 series at 530W–555W for commercial and farm installations, and 650W large-format panels for utility-scale projects.
BYD Warranty: The Key Concern
12-Year Product Warranty
BYD only offers a 12-year product warranty on their solar panels. This is significantly shorter than the 25-year standard offered by Jinko, JA Solar, Trina, and most other Tier 1 manufacturers. This means manufacturing defects discovered after year 12 are not covered.
30-Year Performance Warranty
The 30-year performance warranty is in line with competitors, guaranteeing 0.50% maximum annual degradation. However, the shorter product warranty reduces the practical value of this guarantee.
Our view: The 12-year product warranty is BYD's biggest weakness for solar panels. For a product expected to last 25–30 years, having product defect coverage for only 12 years is a notable downside compared to competitors.
BYD vs Jinko Solar: Which Is Better?
| Feature | BYD MLK-36 | Jinko Tiger Neo |
|---|---|---|
| Wattage | 440W | 440W |
| Efficiency | 22.0% | 22.3% |
| Product Warranty | 12 years | 25 years |
| Performance Warranty | 30 years | 30 years |
| Degradation | 0.5%/year | 0.4%/year |
| Temperature Coefficient | −0.30%/°C | −0.29%/°C |
| Typical Price (per panel) | £120–£180 | £150–£300 |
| Battery Integration | BYD battery ecosystem | Third-party batteries |
Verdict: Jinko is the better panel on every metric except price. The 12-year vs 25-year product warranty gap is significant. BYD's main advantage is price and their integrated battery ecosystem. If you're already using a BYD battery, their panels are a convenient option. Otherwise, Jinko or JA Solar are the stronger choice.
BYD Solar Panels: Frequently Asked Questions
Are BYD solar panels good?
BYD panels are decent with 22.0% efficiency and Tier 1 status, but their 12-year product warranty is significantly shorter than the 25-year industry standard. They are best suited as part of a BYD battery + solar system rather than as standalone panels.
Are BYD solar panels the same company as BYD cars?
Yes. BYD (Build Your Dreams) is a massive Chinese conglomerate that makes electric vehicles, batteries, and solar panels. The solar division leverages BYD's battery technology expertise.
BYD vs Jinko: which is better?
Jinko wins on efficiency (22.3% vs 22.0%), warranty (25yr vs 12yr product), and degradation (0.4% vs 0.5%). BYD is cheaper (£120–£180 vs £150–£300) and offers integrated battery solutions. For panels alone, Jinko is better.
What is the BYD solar panel warranty?
BYD offers a 12-year product warranty (covering manufacturing defects) and a 30-year performance warranty (0.50% max annual degradation). The 12-year product warranty is significantly shorter than the 25-year standard from competitors.
Does BYD make solar panels?
Yes. While BYD is best known for EVs and batteries, they also manufacture solar panels (MLK and MLTK series) and offer integrated solar + battery + EV charging systems.
How much do BYD solar panels cost in the UK?
BYD panels typically cost £120–£180 per panel installed, making them one of the most affordable Tier 1 options. A 10-panel (4.4 kW) system costs approximately £4,500–£6,000 installed. 0% VAT applies to solar and battery installations until March 2027.
Is BYD a Tier 1 solar panel manufacturer?
Yes. BYD holds Bloomberg NEF Tier 1 bankability status. As one of the world's largest battery and EV manufacturers, BYD has strong financial backing and manufacturing scale.
Should I get BYD panels with a BYD battery?
BYD's integrated solar + battery systems are where the brand shows its strength. BYD batteries (HVS/HVM series) are well-regarded in the UK market. If you're planning battery storage, a BYD panel + battery combination can simplify your system and may offer better integration.
Why is the BYD product warranty only 12 years?
BYD offers a shorter 12-year product warranty compared to the 25-year industry standard. This is a notable weakness. The 30-year performance warranty is still competitive, but the product warranty gap means defects after year 12 would not be covered.
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Sources
- BYD Energy — Photovoltaic Modules — bydenergia.com
- Bloomberg NEF — Tier 1 Solar Module Maker List — bnef.com
- MCS — Microgeneration Certification Scheme — mcscertified.com
Last updated: April 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He fact-checks all content against official MCS and Ofgem data and maintains relationships with MCS-certified installers across the UK.
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