Who are REC?

REC Group was founded in Norway in 1996 as Renewable Energy Corporation, which gives it one of the longest track records of any panel maker still operating. Over three decades it built a reputation as a quality-first European brand rather than a volume player, and it holds a long string of independent reliability awards. It is now headquartered in Singapore, and since 2021 has been owned by Reliance Industries, one of India’s largest companies — which matters for the warranty, because a 25-year promise is only worth anything if the company behind it has deep pockets. For how REC sits against the whole market, see our best solar panels UK guide.

Where are REC panels made?

This is one of the most-searched questions about REC, so let’s be precise. REC panels are manufactured in Singapore, at the company’s main production plant. Norway is where the company was founded and where it historically made silicon and wafers, but the finished panels you’d buy today come from Singapore. They are not made in China — which for some buyers is a genuine point of difference from the mainstream brands, and is reflected in the price.

The Alpha Pure-RX range

REC’s current residential flagship is the Alpha Pure-RX, available in 450W to 470W. It uses heterojunction (HJT) cells — a premium n-type technology that combines crystalline silicon with thin-film layers. In practice HJT gives you three things: very high efficiency, an excellent temperature coefficient (less power lost as the panel heats up), and unusually slow degradation. It’s the same broad family of premium cell tech as SunPower’s Maxeon, and a step above the TOPCon cells in mainstream panels (all of which are monocrystalline — see mono vs poly if you want the background).

Two details worth knowing. The Alpha Pure range is lead-free, which is rare and speaks to the build quality. And the panels are all-black with a clean, gapless look — among the best-looking on the market, which matters more than people admit when it’s going on the front of the house.

Our scores

Efficiency & real-world output

The Alpha Pure-RX tops out at 22.6% efficiency. That’s excellent, but let’s be honest about the league table: on paper it trails the very highest-efficiency panels — Aiko’s back-contact modules and the top LONGi panels now push past 24%. If your roof is tiny and every square metre counts, that gap is real.

For most roofs, though, the headline number understates REC. HJT cells have a very low temperature coefficient (around -0.24 to -0.26%/°C), so on a hot summer afternoon — exactly when a panel should be producing most — the REC loses less output than a standard panel. Combine that with 0.25% annual degradation (against 0.4–0.5% for many mainstream panels) and the lifetime gap narrows sharply: a REC panel in year 20 is still producing over 95% of its day-one output. That’s the real story. For what these figures mean in practice see our solar panel efficiency guide.

The warranty (and why ProTrust matters)

This is where REC earns its price. The Alpha Pure-RX is guaranteed to deliver at least 92% of its original output after 25 years. Most mainstream panels guarantee 84–87%. That 5–8 point difference is thousands of kWh over the panel’s life.

*ProTrust applies when the system is installed by an REC Certified Solar Professional and registered.

The important practical point: the headline 25/25/25 ProTrust warranty — including labour — only applies if your installer is REC Certified. Buy REC through a non-certified installer and you get the (still very good) standard 20-year product warranty but no labour cover. So if you’re paying REC money, it’s worth insisting on a certified installer to unlock the full package. As always, the panel warranty sits alongside your installer’s own workmanship guarantee — see how to choose a solar installer.

UK price

REC sits firmly in the premium bracket: roughly £200–£330 per panel installed, against £130–£220 for a mainstream brand like Jinko or JA Solar. As a fitted system, a typical 4–5kW REC array lands around £6,500–£8,500 with 0% VAT, compared with £5,000–£7,000 for the same size in a mainstream panel — so expect to pay roughly £1,500 more for the badge, the warranty and the longevity. It’s still a step below SunPower Maxeon pricing.

Is the premium worth it? Judged on cost per kWh over 25 years, the gap is smaller than the sticker price suggests, because REC panels degrade half as fast and are guaranteed to produce more at the end. If you plan to stay in the house long-term, the maths tends to favour REC. If you might move in five years, a mainstream panel pays back faster. For the full picture see our cost of solar panels guide and the grants available in 2026.

REC vs Aiko, SunPower & JA Solar

The honest summary: Aiko is the efficiency leader and the pick when space is tight. SunPower Maxeon has the highest headline specs and the highest price. JA Solar gives you 90% of the performance for mainstream money. REC is the balanced premium choice — the best degradation figure of the group, a 92%-at-25-years guarantee, lead-free construction, and a price that sits a clear step below Maxeon. For a homeowner who wants a premium panel without paying the very top price, it’s hard to argue against.

Pros & cons

REC solar panels: frequently asked questions

Figures are typical 2026 UK estimates for guidance only; efficiency, warranty terms and prices vary by exact model and installer. ProTrust warranty terms depend on installation by an REC Certified Solar Professional and registration — confirm in writing on your quote. Always use an MCS-certified installer. 0% VAT on solar applies until 31 March 2027 per HMRC. Sources: REC Group specifications and UK installer pricing.