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REC Group

Alpha Pure-R

The pinnacle of residential solar — highest efficiency, lowest degradation, 20-year product warranty.

22.6%

Peak Efficiency

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Domestic install

25 yr / 92% output guaranteed

Warranty

REC Group Alpha Pure-R installed by Premier Electrical Renewables

About the REC Group Alpha Pure-R

The REC Alpha Pure-R is the flagship panel in our range — a Norwegian-engineered HJT (Heterojunction Technology) panel that represents the current pinnacle of residential solar performance. At 22.6% efficiency across a 405–420W range, it's the most efficient panel we install. More significantly, REC's 25-year performance guarantee of 92% output is the highest in the industry — reflecting the exceptional long-term stability of HJT cell technology. HJT combines the strengths of both monocrystalline silicon and amorphous silicon layers, virtually eliminating light-induced degradation and maintaining higher efficiency at elevated temperatures.

Key Features

HJT Technology — Peak of Solar Science

Heterojunction Technology layers amorphous silicon on both sides of a monocrystalline wafer, creating a cell structure that harvests light from multiple directions and minimises recombination losses.

Industry-Highest 92% Performance Warranty

REC guarantees 92% output after 25 years — the most generous performance warranty in the residential solar market and a direct result of HJT's exceptional stability.

20-Year Product Warranty

REC backs the Alpha Pure-R with a full 20-year product warranty — double the industry standard — covering manufacturing defects, frame integrity, and junction box performance.

Best-in-Class Temperature Performance

A temperature coefficient of just −0.24% per °C means the REC Alpha loses significantly less power on hot summer days than PERC (−0.35%) or TOPCon (−0.30%) panels.

Norwegian Engineering

REC was founded in Norway in 1996 and maintains its R&D operations in Europe, with a reputation for engineering rigour and quality control reflected in field performance data.

Bifacial Light Capture

HJT's amorphous silicon rear layer captures albedo light reflected from the roof surface, adding up to 8% additional generation — the highest bifacial gain of any panel technology.

Why Premier Electrical installs this product

For customers who want the absolute best — whether that's a smaller footprint on a premium property, maximum output over the system's lifetime, or simply a commitment to the finest available technology — the REC Alpha Pure-R is our recommendation. The 92% output warranty after 25 years is unmatched in the residential market, and the 20-year product warranty doubles the industry standard. HJT panels also perform better than any other technology in warm weather. The premium cost is typically justified by higher lifetime generation and, for some properties, the aesthetic premium of a technically superior product.

Technical Specifications

SpecificationValue
TechnologyN-type HJT (Heterojunction)
Peak Efficiency22.6%
Power Range405–420W
Cell Configuration144 half-cut cells
Dimensions1,730 × 1,096 × 30 mm
Weight21.0 kg
Temp. Coefficient (Pmax)−0.24% / °C
Performance Warranty25 years / 92% output
Product Warranty20 years
IP RatingIP68
Wind Load2,400 Pa
Snow Load5,400 Pa

Specifications may vary by model variant. Panel selection is confirmed at survey stage based on your roof, usage, and budget.

Installed Price

Included in system quote

0% VAT on domestic installations

Free home survey included
0% VAT on domestic installations
NICEIC approved installation
Manufacturer warranty registered
Get a Free Quote0330 122 4418

Warranty

25 yr / 92% output guaranteed · 20yr product

Registered by Premier Electrical Renewables at point of installation.

Installation Service

Solar Panel Installation

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NICEIC Approved Contractor

Electrical safety assured

Tesla Certified Installer

For Powerwall & Wall Connector

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50 verified reviews

50 Five-Star Reviews
NICEIC Approved
Tesla Certified
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Everything is completely free and no obligation. We survey, design the right system, and quote — you decide if and when to proceed.

  • Free property survey & roof assessment
  • Bespoke system design & payback report
  • Full written quote within 48 hours
  • No pushy sales — you decide
£600–£1,200Avg. annual savings
7–10 yrsTypical payback period
25 yrPanel performance warranty