Bifacial Panel 440W TOPCon Sunpro Power
Sunpro Power SPDG440-N108M10 bifacial module, 440 Wp, N-Type TOPCon 108 half-cut cells, efficiency 22,53%. Dual glass, 89,4% linear power warranty at 25 years. BloombergNEF Tier 1 manufacturer.
The Sunpro Power SPDG440-N108M10 photovoltaic module is a 440 W bifacial double-glass panel, with 182x91 mm N-Type TOPCon cells in a 108 half-cut configuration. With 22,53% efficiency, it is the flagship model of the SPDGxxx-N108M10 series, produced by a BloombergNEF Tier 1 manufacturer for the fourth consecutive year.
Why choose a bifacial N-Type TOPCon module?
N-Type TOPCon technology degrades less over time than P-type PERC modules, both due to LID (Light Induced Degradation) and LETID. The double-glass and bifacial construction also make it possible to capture part of the production from the rear of the module, a real advantage on light-colored roofs or ground-mounted installations with good albedo.
SPDG440-N108M10 technical specifications
| Rated power | 440 Wp |
| Module efficiency | 22,53% |
| Cell technology | Monocrystalline N-Type TOPCon, 182x91 mm |
| Cell configuration | 108 half-cut |
| Construction | Double-glass, bifacial |
| Maximum system voltage | 1500 V DC (TÜV and UL) |
| Snow load (front) | 5.400 Pa |
| Wind load (rear) | 2.400 Pa |
| Power tolerance | +3 W (positive only) |
| Product warranty | 25 years (up to 30 on some variants) |
| Linear power warranty | 89,4% at 25 years, 87,4% at 30 years |
| Weight and dimensions | 23,3 kg, 1722x1134x30 mm |
When is the bifacial variant more worthwhile than the monofacial one?
The actual bifacial gain depends on the installation: on a sloped roof mounted close to the roof surface, the rear-side contribution is marginal, while on ground-mounted structures, pergolas, or light-colored flat roofs, the gain can reach 5-10%. It should be assessed case by case with the installer, without automatically expecting the maximum theoretical value declared by the manufacturer.
What does the supply include?
- SPDG440-N108M10 bifacial photovoltaic module with MC4 connectors
- IEC, TÜV certifications and PID tests included for each production batch
Frequently asked questions
What is the difference between TOPCon and PERC?
N-Type TOPCon is the technology that follows PERC: it offers higher efficiencies and lower degradation over time, both for LID and LETID, maintaining more stable performance throughout the module’s service life.
Is bifacial gain guaranteed on every installation?
No, it depends on the albedo of the surface underneath and the mounting height: on a traditional pitched roof the contribution is limited, while on ground-mounted structures or light-colored flat roofs the gain is more significant.
Is it compatible with 1500V string inverters?
Yes, the module is TÜV and UL certified for systems up to 1500 V DC, compatible with most current commercial and utility-scale string inverters.
How much power does the module lose over time?
The linear power warranty declares 89,4% of the rated power at 25 years and 87,4% at 30 years, a value above the common market standard for TOPCon modules.
Is it also suitable for installations with heavy snow loads?
Yes, the module is certified for a front load of up to 5.400 Pa and a rear load of up to 2.400 Pa, values higher than the average of many standard modules.