Canadian CS6.2-66TB-615 Bifacial

This is a bifacial panel: it has glass on both faces and cells that also produce current from the light reflected off the surface underneath. In practice, besides the direct light it receives from above, it also gathers the light that bounces off snow, off a white roof membrane or off light-coloured gravel. The lighter the surface under the panel, the greater the gain. It is a panel of industrial dimensions, not an ordinary domestic one.

The front produces 615 W under standard conditions, and the bifaciality factor of 80% shows how much the back can additionally contribute - the exact amount depends on the colour of the surface and on the height at which it is mounted, so it is an indicative gain, not a guaranteed figure. The panel measures 2382 x 1134 mm and weighs 32.8 kg, so it must be installed by two people and requires an appropriately sized structure. It withstands 5400 Pa of snow pressure and 2400 Pa of wind and has been tested against hail with 35 mm balls. The two glass sheets protect the cells from moisture better than the backsheet, and the warranty is 12 years on the product and 30 years linear on power, with 1% degradation in the first year and 0.4%/year afterwards.

STC (front): 615 W, Vmp 41.0 V, Imp 15.01 A, Voc 48.2 V, Isc 16.02 A, efficiency 22.77%. Bifaciality 80% (+/- 5%). Coefficients -0.29 %/degree C (Pmax) and -0.25 %/degree C (Voc), NOCT 41 +/- 2 degrees C. Laminate of 132 N-type TOPCon half-cells in G12R format (210 x 182 mm), double glass 2.0 + 2.0 mm with a white grid on the back, anodised aluminium frame, 2382 x 1134 x 30 mm, 32.8 kg. Maximum system voltage 1500 V DC, IP68 junction box with 3 diodes, original MC4 connectors; tested against 35 mm hail according to IEC TS 63397. In the design, free space is provided under the modules for exploiting the albedo.

Who it suits

Suitable for ground-mounted parks, carports and industrial roofs with a white membrane, where the back of the panel remains exposed to reflected light.

Terms explained

• Bifacial: The panel has cells that also produce current on the back side, from the light reflected by the ground or by the roof.
• Albedo: How much the surface under the panel reflects light; snow or a white membrane reflect a lot, grass or asphalt very little.
• Bifaciality factor 80%: The back of the panel can produce up to 80% of what the front produces, but only if it receives enough reflected light.

Technical specifications

Recommended applications

• Ground-mounted photovoltaic power plants with bifacial gain
• Flat industrial roofs with a white membrane
• Carports and elevated structures where the back of the module is exposed
• High-power commercial systems on 1500 V

Warranty

12 years product warranty and 30 years linear power warranty; 1% degradation in the first year, 0.4%/year afterwards

Technical details

Series-level specifications — valid for the product family

CS6.2-66TB-615 is a bifacial module from the TOPBiHiKu6 series, with N-type TOPCon cells in G12R format (210x182 mm) arranged in 132 half-cells and a double-glass 2.0 + 2.0 mm construction with a white grid on the back. The frame is of anodised aluminium, the junction box IP68 with 3 diodes, and the connectors are of the original MC4 type.

At STC the module produces 615 W on the front, with Vmp 41.0 V, Imp 15.01 A, Voc 48.2 V and Isc 16.02 A, at an efficiency of 22.77%. The bifaciality factor is 80%, which means that the rear face can add, depending on the albedo and on the mounting height, a significant additional energy gain - which is why the module is used mainly on white roofs, on ballasted systems and in ground-mounted power plants.

The temperature coefficient of power is -0.29 %/degree C, that of voltage -0.25 %/degree C, and the NOCT 41 +/- 2 degrees C. The module withstands 5400 Pa snow load and 2400 Pa wind load and is tested against 35 mm hail according to IEC TS 63397. The maximum system voltage is 1500 V, and the overall size of 2382 x 1134 x 30 mm with 32.8 kg requires installation by two people.