---
title: "Sunpro Power SPDG440-N108R10 440W Solar Panel - Specs & Review | ComparePV"
description: "Sunpro Power SPDG440-N108R10 440W solar panel. Specs: 22.02% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient."
source: "https://comparepv.com/panel/sunpro-spdg440-n108r10"
updated: 2026-09-11
---

# Sunpro Power SPDG440-N108R10

Solid all-round for its segment

1,218 panels in the segment TOPCon 400-450 W


## Identity

- **Manufacturer:** Sunpro Power
- **Model:** SPDG440-N108R10
- **Series:** TOPCon 186.8R BIFACIAL
- **Rated power:** 440 W
- **Cell technology:** TOPCon
- **Bifacial:** yes


## How it compares

Compared against segment TOPCon 400-450 W (1218 panels).


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Power (Wp) | 440 W | 435 W | Typical |  |
| Module efficiency | 22.02% | 22.00% | Typical | 6,329 |
| Power density | 220.2 | 220.2 | Typical | 6,328 |
| Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 |
| Weight (kg) | 23.8 kg | 22.0 kg | Typical |  |
| Performance warranty | 30 yrs | 30 yrs | Typical | 21 |


### Full peer table


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Module efficiency | 22.02% | 22.00% | Typical | 6,329 |
| Power density | 220.2 | 220.2 | Typical | 6,328 |
| Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 |
| Weight per kWp | 54.1 | 51.4 | Typical | 8,316 |
| Performance warranty | 30 yrs | 30 yrs | Typical | 21 |

- **Best for:** Commercial and hot-climate.


## Specification


### Electrical

- **Rated power (Pmax):** 440 W
- **Efficiency:** 22.02 %
- **Voltage at Pmax (Vmp):** 32.60 V
- **Current at Pmax (Imp):** 13.50 A
- **Open-circuit voltage (Voc):** 39.27 V
- **Short-circuit current (Isc):** 14.05 A
- **Max system voltage:** 1500 V


### Temperature

- **Temperature coefficient of Pmax:** -0.300 %/degC
- **Temperature coefficient of Voc:** -0.250 %/degC
- **Temperature coefficient of Isc:** 0.046 %/degC
- **NOCT:** 45 degC


### Cell and construction

- **Cell type:** Monocrystalline
- **Cell technology:** TOPCon
- **Cell count:** 108
- **Bifacial:** yes
- **Bifacial gain:** 15.00


### Physical

- **Length:** 1762 mm
- **Width:** 1134 mm
- **Thickness:** 30 mm
- **Weight:** 23.8 kg
- **Area:** 2.00 m2
- **Power density:** 220.2 Wp/m2


### Warranty and degradation

- **Product warranty:** 25 years
- **Performance warranty:** 30 years
- **Output guaranteed at end of warranty:** 87.4 %
- **First-year degradation:** 1.00 %
- **Annual degradation:** 0.40 %
- **Output after 30 years:** 385 W


## Rank in the whole catalogue


| Measure | Position |
| --- | --- |
| Efficiency | 6329 of 14005 |
| Power density | 6328 of 14005 |
| Temperature coefficient | 6093 of 14005 |
| Weight | 8316 of 14005 |
| Warranty | 21 of 14005 |


## About this series

The Sunpro TOPCon 186.8R BIFACIAL series redefines performance standards in modern photovoltaics by integrating rectangular N-type cells with an advanced bifacial design. The use of **TOPCon cell technology** allows for higher efficiency while reducing losses related to high operating temperatures. This solution perfectly addresses the needs of investors struggling with limited space, offering more power from every square meter of roof or ground. A key advantage of the series is **bifacial energy generation (Bifacial)**, which enables the acquisition of additional power from radiation reflected from the ground, significantly increasing the profitability of projects on bright surfaces or in east-west installations. Thanks to **minimal LID and LeTID degradation rates**, these modules guarantee stable production over a long-term horizon, setting them apart from standard P-type solutions. The use of the **rectangular 186.8R cell format** allows for better utilization of the module surface and optimization of electrical parameters. This equipment is dedicated to demanding solar farms and commercial installations, where the priority is the highest return on investment and reliability in variable weather conditions typical of the Polish climate.


## Notable figures

- At 22.0% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules
- At 220.2 W/m² power density, roof space requirements are typical for \*\*TOPCon 400-450W\*\* panels
- At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels
- Weight of 23.8 kg is 1.8 kg above \*\*TOPCon 400-450W\*\* median (22.0 kg) - verify structural support
- Ranked #6329 out of 14005 panels for efficiency in the database


## Questions


### How does TOPCon cell technology in the Sunpro 186.8R panels differ from standard PERC cells?

TOPCon (Tunnel Oxide Passivated Contact) cells use an additional passivation oxide layer that reduces electron recombination on the rear surface of the cell. This gives Sunpro 186.8R panels higher efficiency and lower power losses at high temperatures compared to traditional P-type PERC modules. The result is more stable energy output on hot summer days and slower degradation over time.


### How much extra energy does the bifacial design of the Sunpro TOPCon 186.8R actually generate?

The additional yield from the rear side depends on ground albedo, mounting height, and tilt angle, and typically ranges from a few to over ten percent more energy per year. Best results are achieved on high-albedo surfaces, such as gravel or white roofing, and in dual-illuminated setups like elevated ground-mount racks or east-west orientations.


### What warranty comes with the Sunpro TOPCon 186.8R BIFACIAL panels?

The manufacturer offers a 25-year product warranty and a 30-year linear power output warranty. This means the module retains a guaranteed percentage of its original performance for three decades, a key factor when calculating return on investment for commercial installations and solar farms.


### What is the maximum power output of the Sunpro TOPCon 186.8R, and how many panels are needed for a typical 10 kWp system?

Panels in this series reach up to 450 Wp. For a 10 kWp system, you'll need roughly 22-23 modules, depending on the exact power variant selected. The rectangular 186.8R cell format allows better use of module surface area while keeping a compact footprint.


### Are Sunpro TOPCon 186.8R BIFACIAL panels suitable for solar farms and large commercial installations?

Yes, this is the series' primary target segment. High efficiency, low LID and LeTID degradation, and bifacial technology translate into a better LCOE over the system's lifetime. Sunpro Power holds Tier 1 status, which further reduces financial risk on projects requiring bank financing or leasing.


### Do Sunpro TOPCon 186.8R modules handle shading and high operating temperatures well?

N-type TOPCon technology has a lower power temperature coefficient than classic P-type panels, limiting output drops during hot weather. Regarding shading, the panels use a standard bypass diode configuration for this series, which minimizes the impact of partial shading on the entire string's output.


## Datasheet

[Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/topcon-spdgxxx-n108r10-435-450w-30mm-cd631daad122.pdf)


## Alternatives


| Panel | Power | How it differs |
| --- | --- | --- |
| [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, cooler, +2.5 pp |
| [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, cooler, +2.5 pp |
| [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +45 W, lighter, +2.3 pp |
| [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +45 W, cooler, +2.3 pp |
| [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +45 W, cooler, +2.3 pp |
| [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +45 W, cooler, +2.3 pp |
| [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +45 W, cooler, +2.3 pp |
| [Sunpro Power SPDG435-N108R10](https://comparepv.com/panel/sunpro-spdg435-n108r10) | 435 W | -0.2 pp |
| [Sunpro Power SPDG445-N108R10](https://comparepv.com/panel/sunpro-spdg445-n108r10) | 445 W | +0.2 pp |
| [Sunpro Power SPDG450-N108R10](https://comparepv.com/panel/sunpro-spdg450-n108r10) | 450 W | +10 W, +0.5 pp |
| [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, cooler, +3.0 pp |
| [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, cooler, +2.8 pp |
| [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, cooler, +2.7 pp |
| [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, cooler, +2.5 pp |
| [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +60 W, cooler, +2.5 pp |


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Source: https://comparepv.com/panel/sunpro-spdg440-n108r10

Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.