AIKO 645W Stellar 1N+ N-Type ABC Silver Frame Dual Glass Solar Panel

The AIKO Stellar 1N+ 645 W is an N-Type ABC (All Back Contact) solar panel. AIKO's All-Back-Contact cell design moves every busbar to the rear of the cell, leaving the entire front face free to collect light. It delivers 23.9 % module efficiency from a 2,382 × 1,134 mm frame.

About the AIKO Stellar 1N+ range

The Stellar range is AIKO's utility and commercial line: large-format, silver-framed dual-glass modules aimed at getting the most kilowatt-peak onto a given roof area and cutting the balance-of-system cost per watt that comes with it.

At 2,382 mm tall and 2.70 m² this is a commercial-format module, intended for warehouse and barn roofs, ground mounts and solar farms where the extra length is not a constraint. It is usually too long for a typical domestic roof plane. Being bifacial, it earns most of its extra yield on flat roofs, ground mounts and light-coloured surfaces, where light reaches the back of the module; on a pitched tiled roof the rear-side gain is small.

Why installers specify this panel

• −0.26 %/°C power temperature coefficient — the array keeps more of its rated output on hot days, when a UK roof can sit far above the 25 °C the nameplate figure is measured at.
• Cell-level shade optimisation — the ABC cell structure recovers output around chimneys, vents and pole shadows without adding a separate optimiser to every module.
• Bifacial, 70 % ±5 % — the rear face adds generation from reflected and diffuse light, which suits flat roofs, ground mounts and light-coloured surfaces.
• Glass-glass construction — dual glass, 2.0 + 2.0 mm heat-strengthened front and back instead of a polymer backsheet, for better resistance to moisture ingress and micro-cracking.
• Hail tested to 35 mm at 27.2 m/s — relevant for exposed and upland UK sites.
• Long-dated warranty — 30-year linear performance warranty; first-year degradation ≤1 %, ≤0.35 % per year from year 2 to 30.

Electrical characteristics (STC)

STC: AM1.5, 1,000 W/m², 25 °C cell temperature.

Mechanical specification

Connector: AIKO 01C, not MC4. This panel is the 01C version, as the -01C on its part number shows. The 01C is AIKO's own connector and it does not mate with MC4 or MC4-EVO2 – you cannot join it to MC4 leads, and it needs the AIKO 01C connector pair, two per string. Check what is already on the roof before ordering.

Temperature and load ratings

Warranty and certification

30-year linear performance warranty; first-year degradation ≤1 %, ≤0.35 % per year from year 2 to 30.

Array sizing

Each panel covers 2.70 m². A 4 kWp array needs 6 of them (3.87 kWp over about 16 m²). A 6 kWp array needs 9 of them (5.80 kWp over about 24 m²). At 33.5 kg each they are a two-person lift.

About AIKO

AIKO Solar builds every module in its range on ABC (All Back Contact) cells, a structure it developed to move the cell's contacts out of the light path entirely. The design has taken an Intersolar Award and a Red Dot design award, and it is what puts AIKO modules at the top of the mainstream efficiency tables.

Videos

• AIKO ABC Core Technologies
• ABC Module Test - Partial Shading Optimisation Function
• ABC Module Test - High Temperature Restriction Test
• AIKO Fabrik

Datasheets, installation manuals and warranty documents for the AIKO Stellar 1N+ are in the Documents tab below. Buying for a project? Contact our sales team at sales@clearraysolar.com for pallet pricing.