---
title: "Weran Solar WR7-72HVD-655M 655W Solar Panel - Specs & Review | ComparePV"
description: "Weran Solar WR7-72HVD-655M 655W solar panel. Specs: 24.20% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient."
source: "https://comparepv.com/panel/weran-solar-wr7-72hvd-655m"
updated: 2026-09-11
---

# Weran Solar WR7-72HVD-655M

Space saver, no clear weak spot

5,245 panels in the 555-755 W band, all technologies


## Identity

- **Manufacturer:** Weran Solar
- **Model:** WR7-72HVD-655M
- **Series:** HPBC 2.0 WR7-72HVD 640~665M
- **Rated power:** 655 W
- **Cell technology:** Monocrystalline
- **Bifacial:** yes


## How it compares

Compared against 555-755 W band, all technologies (5245 panels).


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Power (Wp) | 655 W | 620 W | Typical |  |
| Module efficiency | 24.20% | 22.50% | Strong - top 3% | 184 |
| Power density | 242.5 | 225.3 | Strong - top 2% | 172 |
| Temperature coefficient | -0.260 | -0.290 | Strong - top 9% | 511 |
| Weight (kg) | 33.5 kg | 32.5 kg | Typical |  |
| Performance warranty | 30 yrs | 30 yrs | Typical | 21 |


### Full peer table


| Measure | This panel | Segment median | Standing | Rank |
| --- | --- | --- | --- | --- |
| Module efficiency | 24.20% | 22.50% | Strong - top 3% | 184 |
| Power density | 242.5 | 225.3 | Strong - top 2% | 172 |
| Temperature coefficient | -0.260 | -0.290 | Strong - top 9% | 511 |
| Weight per kWp | 51.1 | 53.1 | Typical | 4,503 |
| Performance warranty | 30 yrs | 30 yrs | Typical | 21 |


### Strengths

- **242.5 watts per square metre** - Top 2% of the 555-755 W band, against a median of 225.3. Ranked 172nd in the whole database.
- **24.20% module efficiency** - Top 3% of the 555-755 W band, against a median of 22.50%. Ranked 184th in the whole database.
- **-0.260 %/°C temperature coefficient** - Top 9% of the 555-755 W band, against a median of -0.290. Ranked 511th in the whole database.

- **Best for:** Utility-scale and commercial.


## Specification


### Electrical

- **Rated power (Pmax):** 655 W
- **Efficiency:** 24.20 %
- **Voltage at Pmax (Vmp):** 44.97 V
- **Current at Pmax (Imp):** 14.57 A
- **Open-circuit voltage (Voc):** 54.32 V
- **Short-circuit current (Isc):** 15.22 A
- **Max system voltage:** 1500 V


### Temperature

- **Temperature coefficient of Pmax:** -0.260 %/degC
- **Temperature coefficient of Voc:** -0.200 %/degC
- **Temperature coefficient of Isc:** 0.050 %/degC
- **NOCT:** 45 degC


### Cell and construction

- **Cell type:** Monocrystalline
- **Cell count:** 144
- **Bifacial:** yes


### Physical

- **Length:** 2382 mm
- **Width:** 1134 mm
- **Thickness:** 30 mm
- **Weight:** 33.5 kg
- **Area:** 2.70 m2
- **Power density:** 242.5 Wp/m2


### Warranty and degradation

- **Product warranty:** 15 years
- **Performance warranty:** 30 years
- **Output guaranteed at end of warranty:** 88.8 %
- **First-year degradation:** 1.00 %
- **Annual degradation:** 0.35 %
- **Output after 30 years:** 582 W


## Rank in the whole catalogue


| Measure | Position |
| --- | --- |
| Efficiency | 184 of 14005 |
| Power density | 172 of 14005 |
| Temperature coefficient | 511 of 14005 |
| Weight | 4503 of 14005 |
| Warranty | 21 of 14005 |


## About this series

The Weran Solar HPBC 2.0 WR7-72HVD series are modules designed for large-scale installations where high energy yield per square meter and real cost savings in construction and cabling are crucial. The use of **back contact (BC) technology** means that connections are moved to the back of the module - this allows the panel to better utilize sunlight and reduces losses due to shading from mounting structures. In practice, this translates to more stable energy production in Polish conditions, even in poor weather and with lower solar irradiance.

These are **bifacial modules**, meaning they can also utilize reflected light from the ground - this is particularly beneficial on PV farms, roofs with light-colored membranes, and ground-mounted installations in industrial areas. The series also features **high durability and reliability in demanding scenarios**, such as on heated roof surfaces of warehouses.

The WR7-72HVD would be a good choice for investors, EPC companies, and businesses that want to **maximize yield and reduce LCOE** without compromising on durability.


## Notable figures

- 24.2% module efficiency - 2.4pp better than the \*\*database\*\* median of 21.8%
- At 242.5 W/m² power density, this panel generates 24.4 W/m² more per unit area than \*\*database\*\* median (218.1 W/m²)
- At -0.26%/°C (vs median -0.30%/°C), loses ~2% less power in hot conditions
- At 33.5 kg, this panel is 7.0 kg heavier than the \*\*database\*\* median (26.5 kg) - more demanding for installation crews
- Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface


## Questions


### How does HPBC 2.0 technology in the WR7-72HVD panels differ from standard modules with front-side busbars?

With HPBC (back contact) technology, all electrical connections of the cell are moved to the rear of the panel. This means the front surface has no visible busbars, which in classic modules shade part of the cell area and reduce yield. In practice, this results in better use of incoming light and higher conversion efficiency, especially at low sun angles, such as early morning or winter.


### Do bifacial WR7-72HVD panels require special installation to reach their full potential?

To let bifacial modules generate real extra energy from the rear side, they should ideally be mounted on racking with a gap above the ground, over light-colored or reflective surfaces such as white gravel, a roofing membrane, or grass. On PV farms and industrial roofs with light-colored covering, the bifacial gain is often most noticeable. Standard mounting still works, but without a reflective surface, rear-side yield will be minimal.


### What warranty comes with Weran Solar HPBC 2.0 WR7-72HVD panels?

The series is covered by a 15-year product warranty against material and workmanship defects, plus a 30-year linear power warranty guaranteeing a high percentage of nominal output after three decades of operation. This matches the standard offered by leading premium panel manufacturers and is an important factor when calculating long-term investment payback.


### Are WR7-72HVD 640~665M panels suited for large ground-mount installations or PV farms, or mainly for residential roofs?

This series is designed primarily for large-scale installations - PV farms, industrial sites, and commercial projects - where maximizing yield per area and lowering BoS costs (racking and cabling) per watt matter most. A single module's high power output, up to 665 Wp, means fewer panels are needed for a given system capacity, which meaningfully speeds up installation on large roof and ground-mount areas.


### Do HPBC 2.0 WR7-72HVD panels perform well on hot industrial rooftops?

Yes, the series is engineered to handle demanding thermal conditions typical of large industrial roofs that heat up on sunny days. The back-contact cell design and material quality provide stable energy production and mechanical durability even at elevated operating temperatures, resulting in lower power losses compared to many classic modules under the same conditions.


### Is Weran Solar a Tier 1 manufacturer, and does that matter when choosing WR7-72HVD panels?

Weran Solar is not currently listed as a Tier 1 manufacturer under the Bloomberg NEF classification, which may matter to institutional investors and banks financing large projects when assessing risk. For private investments and smaller commercial projects, Tier 1 status is less practically relevant - what matters most is the module's technical parameters, warranty terms, and overall build quality and service support.


## Datasheet

[Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/3-85f302d9269e.pdf)


## Alternatives


| Panel | Power | How it differs |
| --- | --- | --- |
| [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Lighter, +1.0 pp |
| [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +25 W, lighter, +1.0 pp |
| [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +20 W, lighter, +0.8 pp |
| [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | -10 W, lighter, +0.8 pp |
| [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +45 W, heavier, +0.8 pp |
| [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +40 W, heavier, +0.7 pp |
| [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +15 W, lighter, +0.6 pp |
| [Weran Solar LR7-72HTH 595M](https://comparepv.com/panel/weran-solar-lr7-72hth-595m) | 595 W | -60 W, lighter, -2.2 pp |
| [Weran Solar LR7-72HTH 600M](https://comparepv.com/panel/weran-solar-lr7-72hth-600m) | 600 W | -55 W, lighter, -2.0 pp |
| [Weran Solar LR7-72HTH 605M](https://comparepv.com/panel/weran-solar-lr7-72hth-605m) | 605 W | -50 W, lighter, -1.8 pp |
| [Weran Solar LR7-72HTH 610M](https://comparepv.com/panel/weran-solar-lr7-72hth-610m) | 610 W | Lighter, -1.6 pp, -5 yr warranty |
| [Weran Solar LR7-72HTH 615M](https://comparepv.com/panel/weran-solar-lr7-72hth-615m) | 615 W | Lighter, -1.4 pp, -5 yr warranty |
| [Weran Solar LR7-72HTH 620M](https://comparepv.com/panel/weran-solar-lr7-72hth-620m) | 620 W | Lighter, -1.2 pp, -5 yr warranty |
| [Weran Solar WR7-72HVD-640M](https://comparepv.com/panel/weran-solar-wr7-72hvd-640m) | 640 W | -15 W, -0.5 pp |
| [Weran Solar WR7-72HVD-645M](https://comparepv.com/panel/weran-solar-wr7-72hvd-645m) | 645 W | -10 W, -0.3 pp |
| [Weran Solar WR7-72HVD-650M](https://comparepv.com/panel/weran-solar-wr7-72hvd-650m) | 650 W | Very close match |
| [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +15 W, lighter, +0.6 pp |


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Source: https://comparepv.com/panel/weran-solar-wr7-72hvd-655m

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.