---
title: "Seraphim SRP-445-BTD-HV 445W Solar Panel - Specs & Review | ComparePV"
description: "Seraphim SRP-445-BTD-HV 445W solar panel. Specs: 22.79% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient."
source: "https://comparepv.com/panel/seraphim-srp-445-btd-hv"
updated: 2026-09-11
---

# Seraphim SRP-445-BTD-HV

Space saver, no clear weak spot

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


## Identity

- **Manufacturer:** Seraphim
- **Model:** SRP-445-BTD-HV
- **Series:** Sable 430-445W (TOPCon 182mm)
- **Rated power:** 445 W
- **Cell technology:** TOPCon


## How it compares

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


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Power (Wp) | 445 W | 435 W | Strong - top 8% |  |
| Module efficiency | 22.79% | 22.00% | Strong - top 3% | 3,005 |
| Power density | 227.9 | 220.2 | Strong - top 2% | 2,790 |
| Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 |
| Weight (kg) | 21.5 kg | 22.0 kg | Strong - top 24% |  |
| Performance warranty | 30 yrs | 30 yrs | Typical | 21 |


### Full peer table


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Module efficiency | 22.79% | 22.00% | Strong - top 3% | 3,005 |
| Power density | 227.9 | 220.2 | Strong - top 2% | 2,790 |
| Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 |
| Weight per kWp | 48.3 | 51.4 | Strong - top 24% | 2,192 |
| Performance warranty | 30 yrs | 30 yrs | Typical | 21 |


### Strengths

- **227.9 watts per square metre** - Top 2% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 2,790th in the whole database.
- **22.79% module efficiency** - Top 3% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 3,005th in the whole database.
- **48.3 kg per kWp** - Top 24% of the TOPCon 400-450 W segment, against a median of 51.4.

- **Best for:** Residential, commercial and shaded-installations.


## Specification


### Electrical

- **Rated power (Pmax):** 445 W
- **Efficiency:** 22.79 %
- **Voltage at Pmax (Vmp):** 32.90 V
- **Current at Pmax (Imp):** 13.54 A
- **Open-circuit voltage (Voc):** 39.50 V
- **Short-circuit current (Isc):** 14.23 A
- **Max system voltage:** 1500 V


### Temperature

- **Temperature coefficient of Pmax:** -0.290 %/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


### Physical

- **Length:** 1722 mm
- **Width:** 1134 mm
- **Thickness:** 30 mm
- **Weight:** 21.5 kg
- **Area:** 1.95 m2
- **Power density:** 227.9 Wp/m2


### Warranty and degradation

- **Product warranty:** 15 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:** 389 W


## Rank in the whole catalogue


| Measure | Position |
| --- | --- |
| Efficiency | 3005 of 14005 |
| Power density | 2790 of 14005 |
| Temperature coefficient | 2165 of 14005 |
| Weight | 2192 of 14005 |
| Warranty | 21 of 14005 |


## About this series

Seraphim Sable 430-445W (TOPCon 182mm) is a series of modules designed for high energy yields in real-world conditions - not just in laboratory settings. The use of **N-type TOPCon cells** helps to minimize degradation-related losses, ensuring that the installation maintains stable energy production for longer. The **glass-glass bifacial construction** is also noteworthy, as it can utilize reflected light from the ground - a practical advantage on bright roofs, during ground mounting, or on structures with good reflectivity.

The Sable series is distinguished by **half-cut technology** and **multi-busbar design**, which improves performance under partial shading and enhances resistance to microcracks and localized overheating. Another advantage is **excellent performance in low light**, which translates to higher yields in the morning, evening, and on cloudy days.

This is a good choice for residential and commercial installations where predictable production, durability, and easy integration with modern inverters and optimizers are important.


## Notable figures

- Efficiency of 22.8% is 0.8pp above the \*\*TOPCon 400-450W\*\* median (22.0%)
- At 227.9 W/m² power density, this panel generates 7.7 W/m² more per unit area than \*\*TOPCon 400-450W\*\* median (220.2 W/m²)
- Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 400-450W\*\* median
- In the top 21% for efficiency among all TOPCon panels


## Questions


### What warranty does the Seraphim Sable 430-445W series come with?

Seraphim provides a 15-year product warranty and a 30-year linear power output warranty on the Sable series. The linear guarantee means the manufacturer commits to a specified minimum power level for three full decades. Because N-type TOPCon cells degrade more slowly than PERC, real-world output after 20-30 years typically exceeds the guaranteed minimum.


### How well does the Seraphim Sable TOPCon 445W perform in cloudy or low-light conditions?

The Sable series delivers excellent low-light performance. N-type TOPCon cells convert diffuse and indirect irradiance more efficiently than older PERC technology. In practice this means higher yields in the early morning, late afternoon, and on overcast days — a measurable advantage in Central and Northern European climates where clear skies cannot be counted on year-round.


### What is the difference between TOPCon and PERC, and is the Seraphim Sable worth the premium?

TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that achieves higher module efficiency (up to ~22.5%) and lower annual degradation rates than standard PERC. For a 10–15 kWp rooftop system this can translate into several percent more annual energy output and significantly better long-term yield retention — making the price premium reasonable for most residential and commercial installations with a 25-30 year horizon.


### What are the dimensions and weight of the Seraphim Sable 445W panel — will it fit on a standard pitched roof?

The Seraphim Sable 445W measures approximately 1722 × 1134 × 28 mm and weighs around 21 kg — standard sizing for 182mm-cell modules. A 10 kWp system (about 22–23 panels) requires roughly 40–45 m² of roof area, which fits a typical residential pitched roof without structural modifications. The half-cut and multi-busbar design also improves resistance to microcracks during transport and installation.


### Are Seraphim Sable panels compatible with inverters and MPPT optimizers from popular brands?

Yes. The Sable series is compatible with standard string and hybrid inverters available on the European market, including SMA, Fronius, SolarEdge, Huawei, Deye, and Growatt. The 1500V DC maximum system voltage and standard short-circuit current ratings allow flexible string design. The panels also work seamlessly with MPPT optimizers, which is especially useful when partial shading from chimneys, dormers, or trees cannot be avoided.


### What are the benefits of the glass-glass construction in the Seraphim Sable series, and who should care?

The glass-glass encapsulation replaces the standard backsheet with a second glass layer, significantly improving resistance to moisture ingress, PID (potential induced degradation), and mechanical stress. This is particularly valuable for ground-mount systems, high-humidity environments, and coastal locations. For rooftop installations it translates into longer module lifespan and a lower risk of warranty issues caused by structural damage to the module body.


## Datasheet

[Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/84f94973af5953a9fb848c21fe0f46ee-6993836cd743.pdf)


## Alternatives


| Panel | Power | How it differs |
| --- | --- | --- |
| [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, cooler, +2.0 pp |
| [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, cooler, +1.7 pp |
| [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +1.7 pp |
| [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, cooler, +1.5 pp |
| [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, cooler, +1.5 pp |
| [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +1.5 pp |
| [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +1.5 pp |
| [Seraphim SRP-395-BMD-HV](https://comparepv.com/panel/seraphim-srp-395-bmd-hv) | 395 W | -50 W, hotter, -2.6 pp |
| [Seraphim SRP-400-BMD-BG](https://comparepv.com/panel/seraphim-srp-400-bmd-bg) | 400 W | -45 W, hotter, -2.3 pp |
| [Seraphim SRP-405-BMD-BG](https://comparepv.com/panel/seraphim-srp-405-bmd-bg) | 405 W | -40 W, hotter, -2.1 pp |
| [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.2 pp |
| [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +1.9 pp |
| [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +1.7 pp |
| [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +1.7 pp |


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Source: https://comparepv.com/panel/seraphim-srp-445-btd-hv

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