DAS Solar Solar Panels Review (2026): Are They Any Good?
DAS Solar is a young Chinese panel maker that grew very fast. Founded in 2018, it was one of the world’s ten biggest panel makers by 2025, specialising in N-type TOPCon. Then it ran into money trouble, and in July 2026 it was taken over by TCL Zhonghuan, the group that also controls Maxeon. This review covers the DAS Solar panels you might be quoted in the UK, led by the 440W Black Pro, plus efficiency, the warranty, who owns the company now, where the panels are made, Tier 1 status, UK prices, and how DAS compares with Jinko and Astronergy.
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Who are DAS Solar?
DAS Solar is a Chinese solar panel and cell maker, founded in August 2018 and based in Quzhou, in Zhejiang province. It’s sometimes written as DAS, DASolar or DAS Solar Co., Ltd. From the start it bet on N-type TOPCon cells, the technology most good home panels now use, and it says it set up its first TOPCon cell line in 2019.
It grew very fast:
- Big within seven years. The industry analyst InfoLink ranked DAS Solar joint tenth in the world for panels shipped in 2025, alongside TCL Solar and Yingli.
- Large factories. By the end of 2025 it had more than 50GW of cell capacity and more than 70GW of panel capacity, according to pv magazine.
- Heavy on research. It says it held 790 patents by December 2025 and works with the University of New South Wales on future cell designs.
- International offices. It has subsidiaries in Germany, Japan and Australia. We couldn’t find a UK office.
In the UK, DAS Solar is a less common name on quotes than Jinko, JA, LONGi or Trina. It’s stocked by City Plumbing, among others, and turns up where an installer wants an N-type panel at a keen price.
The TCL takeover: what it means for you
This is the most important thing to know about DAS Solar in 2026. Like much of the Chinese solar industry, it was hit hard by years of falling panel prices. According to figures reported by pv magazine:
- At the end of 2025, DAS Solar had liabilities of CNY 14.2 billion and negative net assets of CNY 1.29 billion. In plain terms, it owed more than it owned.
- In early 2026, TCL Zhonghuan agreed to buy control for CNY 1.258 billion, about £130 million. That valued DAS at roughly a tenth of its peak.
- The deal completed on 2 July 2026. TCL Zhonghuan now holds about 59% of the shares and controls about 66% of the votes.
- TCL plans to convert DAS’s cell factories to back-contact (BC) technology, with work starting in July 2026 and running into 2027.
TCL Zhonghuan is one of the world’s biggest makers of silicon wafers, the slices that cells are made from. It also controls Maxeon, the company behind SunPower’s panels outside the US (SunPower Maxeon review).
What it means for a UK buyer:
- The warranty now has a bigger company behind it. That’s better than a struggling independent maker. But a warranty is only as good as the company honouring it, and the brand’s future is not settled.
- The DAS name may not last. We couldn’t find any statement on whether DAS-branded panels will continue. One UK distributor’s DAS Solar page now lists TCL Solar panels instead.
- Spare panels could be harder to match. If the range changes, finding an identical replacement in ten years may be difficult. A modern panel of similar size and voltage usually works (solar panel repairs).
None of this makes a DAS panel on your roof a bad panel. It means the installer’s own insurance-backed workmanship warranty matters even more than usual (solar panel warranties).
Where are DAS Solar panels made?
In China. DAS says it has more than ten manufacturing bases across the country, including Quzhou, Taizhou, Zhangzhou and Anhui. TCL’s upgrade plan also lists panel lines at Yixing, Tianjin and Jingshan.
DAS also started building a 3GW panel factory in Mandeure, in eastern France, in April 2025, with an investment of €109 million. We couldn’t confirm whether it has started production.
Being made in China is normal. Almost every mainstream panel fitted in the UK is. What matters is the panel’s testing record, the warranty and who stands behind it (best solar panels UK).
The DAS Solar range in 2026
| Series | Cells | Power | Size and weight | Best for |
|---|---|---|---|---|
| DAS-DH108ND “Black Pro” | N-type TOPCon, 108 half-cells, glass both sides | 435–465W | 1,800 × 1,134 × 30mm, 21.7kg | Homes. The version UK merchants stock |
| DAS-DH108NA | N-type TOPCon, 108 half-cells, glass both sides | 420–440W | 1,722 × 1,134 × 30mm, 20.5kg | Homes. The standard-size version |
| D-Mini DAS-DH96NE | N-type, 96 half-cells, glass both sides | 445–470W | Not confirmed | Homes |
| DAS-LH132PA / LF132PA | Lightweight half-cell panels | 455–475W | Lighter than standard | Weak or industrial roofs |
| D-Matrix DAS-DH144NA, D-Max DH156NA, DAON 5.0 DH132 | N-type TOPCon, larger formats | 575–745W | 2.2–2.4m long | Commercial roofs and solar farms |
| DAS-DH144PA, WH144PA and older models | Older P-type PERC and earlier designs | 420–560W | About 2m+ long | Older and commercial systems |
For a house, you want one of the first three. The bigger 575W+ panels are too long for most house roofs. A UK seller lists 590W and 620W DAS panels at around £90 each, but those are for commercial roofs, not homes.
N-type TOPCon cells are more efficient, cope better with heat and age more slowly than the older PERC cells (types of solar panels, panel types compared).
DAS Solar model codes decoded
Take DAS-DH108ND-440. As far as we can tell from the datasheets:
- DH marks a double-glass, half-cell panel. WH is the single-glass version, and LH or LF the lightweight ones.
- 108 is the number of half-cells. 144, 156 and 132 are the bigger commercial sizes.
- N means N-type. P means the older P-type PERC.
- The last letter, such as A, D or E, is the version. NA and ND are different sizes (see below).
- 440 is the power in watts.
DAS 440W solar panels: a closer look
The 440W panel is the DAS model you’re most likely to be offered for a house. There are two versions, and they aren’t the same size.
| DAS 440W | DAS-DH108ND (Black Pro) | DAS-DH108NA |
|---|---|---|
| Efficiency at 440W | About 21.6% | About 22.5% |
| Power range | 435–465W | 420–440W |
| Cells | N-type TOPCon, 108 half-cells | N-type TOPCon, 108 half-cells |
| Glass | 1.6mm front and back | Glass both sides |
| Size | 1,800 × 1,134 × 30mm | 1,722 × 1,134 × 30mm |
| Weight | 21.7kg | 20.5kg |
| Temperature coefficient | -0.28% per °C | -0.30% per °C |
| Product warranty | 25 years | 25 years |
| Power guarantee | 30 years, to 87.4% | 30 years, to 87% |
The Black Pro is 78mm longer than the standard 1,722mm home panel. Because it’s bigger, it’s slightly less efficient at the same wattage. On a tight roof that extra length can decide whether a row of panels fits, so make sure the installer’s layout uses the right size (solar panel sizes, how many panels fit your roof). The two versions shouldn’t be swapped without redoing the design.
If your quote just says “DAS 440W”, ask for the full model code and the datasheet.
Two points on the build. Bifacial means the back of the panel can also generate from reflected light. On a house roof, where the panel sits a few centimetres above the tiles, that adds next to nothing, so don’t pay extra for it. The real benefit is the second sheet of glass, which protects the cells better than a plastic backsheet and should help the panel last (bifacial solar panels, solar panel maintenance).
Our scores
Our rating
DAS Solar DH108ND Black Pro
★★★½☆ A good modern panel, with questions over the company’s future
The bottom line: nothing wrong with the panel. Buy it only at a lower price than the big brands, from an installer with a strong workmanship warranty.
Get my DAS Solar price →DAS Solar panel efficiency and real-world UK output
DAS Solar’s home panels run from about 21.5% efficiency at 440W (Black Pro) to about 22.5% (the standard-size 440W), and up to about 22.8% for a 465W Black Pro. That’s in line with the mainstream at 21.5–23%, and a step behind the best panels at about 24–25% (most efficient solar panels). The Black Pro’s temperature coefficient of -0.28% per °C is good, so it loses little output on a hot roof.
Efficiency only tells you how much power comes from each square metre. A 440W DAS panel makes 440W whatever its efficiency. A less efficient panel is just slightly bigger.
In practice, one 440W DAS panel on a south-facing UK roof generates roughly 400–450kWh a year depending on where you live. Nine of them make a 4kW system producing about 3,600–4,050kWh a year, worth roughly £690–£775 a year at October 2026 electricity prices if you use half of it at home. You’d get almost exactly the same from a Jinko, JA or Astronergy panel of the same wattage (solar panel efficiency, solar panel output, payback).
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Get My DAS Solar Price →DAS Solar panel warranty
| Cover | DAS Solar DH108ND / DH108NA | Typical rival (Jinko, JA, Astronergy) |
|---|---|---|
| Product warranty | 25 years | Usually 25 years |
| Power guarantee | 30 years. 89.4% at year 25 and 87.4% at year 30 for the Black Pro | 30 years, about 87–89% at the end |
| Who backs it | DAS Solar, now controlled by TCL Zhonghuan. No UK office found | The maker, usually with a UK or European office |
On paper this matches the big brands line for line. The difference is the company. Older DAS panels had shorter cover: the discontinued DH144NB came with a 15-year product warranty.
As with any panel, the manufacturer’s warranty normally covers the panel, not the labour to swap it. To protect yourself:
- Choose an installer that has traded for several years and is MCS-certified.
- Make sure the workmanship guarantee is insurance-backed, so it survives if the installer doesn’t.
- Ask the installer who handles a panel claim in the UK: them, their wholesaler or DAS directly.
- Keep the datasheet, the warranty document and the panel serial numbers with your handover pack.
- Remember that panels rarely fail. The inverter is far more likely to need attention (how long inverters last, solar inverters explained).
Tier 1, world ranking and testing
World ranking
By panels shipped, DAS Solar was joint tenth in the world in 2025, according to InfoLink, level with TCL Solar and Yingli. Ahead of it were Jinko and LONGi, Trina and JA Solar, Tongwei, Astronergy, GCL, DMEGC and Canadian Solar.
Tier 1
Yes for 2025; not confirmed for 2026. Tier 1 is BloombergNEF’s list of panel makers whose products banks will finance on large projects. It measures financial standing, not quality. DAS Solar says it was on the list for all four quarters of 2025. We couldn’t confirm a 2026 listing, and it wasn’t on the third-party copy of the first-quarter 2026 list we checked. Given the company’s finances at the end of 2025, that wouldn’t be surprising.
Independent testing
We couldn’t find DAS Solar named as a Kiwa PVEL Top Performer. The PVEL scorecard is the best-known independent test of how panels hold up over time. Many rivals, including Astronergy, Jinko and DMEGC, publish their results. DAS holds standard certifications and highlights environmental ratings such as an EcoVadis Platinum rating. That’s not the same as long-term reliability testing.
Where we rank it
DAS sits below the big names in our rankings. The panels are modern and the warranty terms match, but the company’s finances, the unconfirmed 2026 Tier 1 status and the lack of published PVEL results all count against it. See best solar panels UK for the full list.
DAS Solar panels price in the UK
We couldn’t find a public UK price for the DAS 440W home panel when we checked in October 2026. City Plumbing lists the 440W Black Pro, but didn’t show a price, and other UK sellers had it out of stock. The only UK DAS prices we found were for 590W and 620W commercial panels, at around £90 each.
Mainstream home panels from Jinko, JA and Trina typically cost installers £70–£120 each. Given its uncertain future, a DAS panel should cost no more than the big brands, and ideally less. When a panel is fitted to a home as part of an installation, it’s charged at 0% VAT until 31 March 2027 (VAT on solar panels). Prices quoted for Australia or elsewhere don’t tell you much about UK prices, because shipping, duties and warranty terms all differ.
Panels are only about a sixth of the cost of a fitted system, so the brand doesn’t change the total much. Typical UK installed prices with any mainstream panel:
| System | Panels (440W) | Typical fitted price | With a 5kWh battery |
|---|---|---|---|
| 3kW | 7 | £4,500–£6,000 | £7,500–£9,500 |
| 4kW | 9–10 | £5,500–£7,500 | £9,000–£11,500 |
| 5kW | 11–12 | £6,500–£8,500 | — |
| 6kW | 13–14 | £7,000–£9,500 | — |
A quote using DAS panels should sit in the lower half of those ranges. If it’s at the top, you’re paying a premium price for a panel with more risk attached. For the full breakdown, see solar panel cost, the 4kW solar system guide and 4kW solar with a battery. Our solar panel deals page shows what the national companies are charging this month.
DAS vs Jinko solar panels (and Astronergy)
| DAS Solar | Jinko Solar | Astronergy | |
|---|---|---|---|
| Home panel | DH108ND Black Pro | Tiger Neo | ASTRO N7s |
| Cell type | N-type TOPCon | N-type TOPCon | N-type TOPCon |
| Efficiency | About 21.5–22.8% | About 22–23% | About 22–23% |
| Product warranty | 25 years | Usually 25 years | 25 years |
| Power guarantee | 30 years | 30 years | 30 years |
| World ranking by shipments, 2025 | Joint 10th | Joint 1st | 6th |
| Tier 1 in 2026 | Not confirmed | Yes | Yes |
| Kiwa PVEL Top Performer | None found | Regularly | Nine times to 2025 |
| Company position | Taken over by TCL Zhonghuan in July 2026 | Independent, listed | Part of CHINT Group |
| UK availability | Some merchants | Almost everywhere | Some retailers and wholesalers |
DAS vs Jinko solar panels: on the roof, two 440W panels will produce almost exactly the same power, and the warranty terms match. Jinko is the world’s joint-largest panel maker, is stocked by almost every UK wholesaler and has a long PVEL record. DAS has just changed hands after a difficult year. If the prices are the same, choose Jinko. Only choose DAS if it’s clearly cheaper and your installer’s workmanship warranty is strong.
DAS vs Astronergy: Astronergy is the better-backed value choice, with a bigger company, nine PVEL Top Performer awards and confirmed 2026 Tier 1 status, at a similar price.
Read our reviews of Jinko, Astronergy, JA Solar, LONGi, Trina, Canadian Solar and Aiko, and other value brands such as DMEGC, Phono Solar, Risen and Leapton.
DAS Solar vs DAS Energy: not the same company
People searching for “DAS Energy solar panels” are often looking for a different company. DAS Energy is a European maker of lightweight, flexible solar panels, with a base in Wiener Neustadt, Austria, according to Austrian business listings. Its panels use a fibreglass-reinforced core with no metal frame, and trade press has reported weights of about 3.3kg per square metre, a fraction of a standard panel. They’re aimed at weak roofs, facades, greenhouses and vehicles.
As far as we can find, DAS Energy has no connection with DAS Solar. If a quote says “DAS”, check which one. For panels on a roof that can’t take the weight of standard glass panels, see flexible solar panels and solar on unusual roofs.
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Get My Fixed Price →Pros & cons
Pros
- Modern N-type TOPCon panels with glass on both sides
- 25-year product warranty and 30-year power guarantee
- Good temperature coefficient of -0.28% per °C on the Black Pro
- Joint tenth in the world for shipments in 2025
- On BloombergNEF’s Tier 1 list for all of 2025
- Now controlled by a much larger group, TCL Zhonghuan
Cons
- Owed more than it owned at the end of 2025, before the takeover
- Future of the DAS brand not confirmed
- 2026 Tier 1 status not confirmed
- No Kiwa PVEL Top Performer results found
- No UK office found, and limited UK stock
- The Black Pro is 78mm longer than most home panels
Verdict: are DAS Solar panels any good?
3.6 / 5. The panels themselves are good: modern N-type TOPCon with double glass and big-brand warranty terms. The company behind them had a difficult 2025 and now belongs to TCL Zhonghuan. That makes DAS a reasonable choice at the right price, but not one to pay a premium for.
If an installer you trust quotes DAS Solar panels at a lower price than Jinko, JA or Astronergy, and backs the job with a ten-year insurance-backed workmanship warranty, it’s fine to say yes. If the price is the same, choose a bigger, better-tested brand. Either way, check the full model code, because the two 440W versions are different sizes (how to choose a solar installer, solar panel companies UK, are solar panels worth it?).
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DAS Solar panels: frequently asked questions
Are DAS Solar panels any good?
The panels are good. DAS Solar’s home panel, the DH108ND Black Pro, is an N-type TOPCon module of 435–465W at about 21.5–22.8% efficiency, with glass on both sides, a 25-year product warranty and a 30-year power guarantee. The company had more debts than assets at the end of 2025 and was taken over by TCL Zhonghuan in July 2026, so we rate it 3.6 out of 5, below the biggest brands.
Who owns DAS Solar?
TCL Zhonghuan, a large Chinese maker of silicon wafers, took control of DAS Solar on 2 July 2026. It holds about 59% of the shares and controls about 66% of the votes, according to figures reported by pv magazine. TCL Zhonghuan also controls Maxeon. DAS Solar was founded in 2018 and is based in Quzhou, Zhejiang.
Where are DAS Solar panels made?
In China. DAS Solar says it has more than ten manufacturing bases there, including Quzhou, Taizhou, Zhangzhou and Anhui. It began building a 3GW factory in Mandeure, France, in April 2025, but we couldn’t confirm whether it has started production.
Is DAS Solar a Tier 1 manufacturer?
It was for 2025. DAS Solar says it was on BloombergNEF’s Tier 1 list for all four quarters of 2025. We couldn’t confirm a 2026 listing, and it wasn’t on the third-party copy of the first-quarter 2026 list we checked. Tier 1 measures a maker’s financial standing with banks, not panel quality.
How much do DAS Solar panels cost in the UK?
We couldn’t find a public UK price for the 440W home panel in October 2026. Mainstream home panels typically cost installers £70–£120 each, and a DAS panel should cost no more than the big brands. A fitted 4kW system costs about £5,500–£7,500 with any mainstream panel, and a DAS quote should be in the lower half of that range.
What warranty do DAS Solar panels have?
The current home panels have a 25-year product warranty and a 30-year power guarantee. For the DH108ND Black Pro, the power guarantee promises 89.4% of the original output at year 25 and 87.4% at year 30. Ask your installer who handles a warranty claim in the UK, and make sure their own workmanship warranty is insurance-backed.
DAS vs Jinko solar panels: which is better?
At the same wattage they produce almost the same power and have matching warranty terms. Jinko is the bigger, better-tested company, with regular Kiwa PVEL Top Performer results, confirmed Tier 1 status and stock at almost every UK wholesaler. Choose DAS only if it’s clearly cheaper and your installer offers a strong workmanship warranty.
Is DAS Energy the same as DAS Solar?
No. DAS Energy is a separate European company that makes lightweight, flexible solar panels, with a base in Wiener Neustadt, Austria. DAS Solar is a Chinese maker of standard glass panels, now controlled by TCL Zhonghuan. As far as we can find, they are not connected.
Going Solar UK is an introduction service, not an installer, and has no connection with DAS Solar, TCL Zhonghuan or DAS Energy. Company details are from DAS Solar’s website and its press releases, checked in October 2026. Financial figures, the deal terms and the factory upgrade plan are as reported by pv magazine, TaiyangNews and Mercom from company disclosures in 2026. The sterling value of the deal is our approximate conversion. Shipment rankings are from InfoLink Consulting. Tier 1 status for 2025 is as reported by DAS Solar, and our 2026 check used a third-party copy of the BloombergNEF list. We could not find DAS Solar in published Kiwa PVEL Top Performer lists. The French factory details are from TaiyangNews in April 2025. Specifications are from DAS Solar datasheets as listed by European retailers and wholesalers, and efficiency at each wattage is calculated from rated power and size. UK availability and prices are from retailer websites in October 2026 and will vary. DAS Energy details are from trade press and Austrian company listings. Installed prices are typical 2026 UK estimates. The rating is our opinion. If anything here is inaccurate or out of date, contact us and we will correct it. Always confirm the exact model, datasheet and warranty with an MCS-certified installer.