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DMEGC DM625G12RT-B66HSW
DMEGC Brand review

DM625G12RT-B66HSW

625 Wp TOPCon Bifacial 80%
ComparePV verdict

Solid all-round for its segment

Rank 1,863 of 14,005
Compare panels Datasheet PDF
Power (Wp)
625
Typical for its class
Efficiency (%)
23.10
Typical · median 22.80%
Density (Wp/m²)
231.4
Typical · median 227.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
32.3
Typical · median 32.7 kg
Warranty (yrs)
30
Typical · median 30 yrs

The DMEGC DMxXXG12RT-B66HSW (INFINITY RT) series comprises bifacial N-type TOPCon modules engineered to maximize energy yield in real-world operating conditions-including diffuse light and lower temperatures. The use of high-efficiency cells, along with optimized glass optics and tailored film layers, translates to stable energy production throughout the day and improved utilization of limited peak irradiance periods.

Compared to many panels in its competitive segment, this series excels in long-term durability: the double-glass construction enhances resistance to environmental factors, while high PID resistance ensures sustained performance over time. Thanks to lower degradation rates and refined thermal performance, energy yield and project economics can be more reliably predicted over multiple years.

This is an excellent choice for large-scale PV farms and commercial & industrial (C&I) projects, where higher bifacial yield and mechanical load security-even in challenging climates-are critical. For investors, it means more energy generated from the same footprint and predictable results without compromising on quality.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.10% 22.80% Typical 1,570
Power density 231.4 227.7 Typical 1,513
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 51.7 53.1 Typical 5,050
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 1 caution
Best for

Commercial, utility-scale and hot-climate.

What owners get
Up to 23.5% Efficiency – Top of the Segment

The maximum efficiency of 23.5% places the series on par with the LONGi Hi-MO X10 (23.5%) and just below the Jinko Tiger Neo (23.51%), while outperforming the Talesun BIPRO (22.72%) by 0.78 percentage points. For space-constrained installations, this translates directly into higher energy yield per square meter.

Low Temperature Coefficient: -0.29%/°C

The manufacturer's datasheet specifies -0.29%/°C (Pmax), and an independent PV Magazine test measured -0.276%, placing the series among the top-performing TOPCon modules. In the Polish climate, where module temperatures regularly exceed 50°C in summer, a 0.1 percentage point advantage in temperature coefficient over weaker PERC modules (approx. -0.35%/°C) can translate into 1–2% higher daily energy yield on hot days.

Degradation ≤0.4%/year + 30-Year Warranty

The manufacturer guarantees first-year degradation of ≤1% and annual degradation of ≤0.4% over 30 years, backed by a 15-year product warranty. Standard offerings in the segment (e.g., Talesun) rely on 25-year warranties with higher degradation rates; the 30-year horizon with a linear power warranty reduces LCOE and simplifies project financing.

Kiwa PVEL Top Performer – 4 Consecutive Years

DMEGC Solar has earned the Top Performer distinction in the Kiwa PVEL PV Module Reliability Scorecard for the fourth consecutive year (editions 2022–2025). Kiwa PVEL is one of the few independent laboratories that tests long-term module durability, and this multi-year consistency confirms the manufacturing process stability of the Infinity RT series.

BNEF Tier 1 (Q3 2025) + PV Magazine Rating

DMEGC Solar maintains Tier 1 status in the BloombergNEF ranking (confirmed Q3 2025), ensuring project bankability for non-recourse financing. In addition, the Infinity RT series received a five-star "Very Good" rating from PV Magazine in independent testing, further supporting the credibility of the manufacturer's claims.

Trade-offs
Module Weight ~32.3 kg (Double-Glass)

The double-glass construction with two 2 mm tempered glass panes results in a module weight of ~32.3 kg – approximately 4–5 kg more than comparable single-glass modules in this power class (e.g., the Jinko Tiger Neo 66HL4M in glass-backsheet configuration weighs approx. 28.5 kg). For rooftop installations, this requires structural load capacity verification and may increase installation costs due to more demanding panel handling.

Notes from the database
  • Efficiency of 23.1% matches the TOPCon 600-650W median
  • 231.4 W/m² power density - 3.7 W/m² more than TOPCon 600-650W median (227.7 W/m²), more power per roof area
  • At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
  • #1570 for efficiency, #2165 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 625 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.10 % Typical Segment median 22.80%
Vmpp · Impp 41.05 V · 15.25 A Operating point at max power
Voc · Isc 49.29 V · 16.17 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 32.3 kg Typical Typical · median 32.7 kg
Cells 132 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.048 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 546 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
DMEGC DM625G12RT-B66HSW 625 W 23.10% -0.290 32.3 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +2.1 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +50 W, lighter, +1.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.9 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +45 W, lighter, +1.7 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +45 W, lighter, +1.7 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +1.7 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +45 W, cooler, +1.7 pp
DM605G12RT-B66HSW 605 W 22.40% -0.290 32.3 kg -20 W, -0.7 pp
DM610G12RT-B66HSW 610 W 22.60% -0.290 32.3 kg -15 W, -0.5 pp
DM615G12RT-B66HSW 615 W 22.80% -0.290 32.3 kg -10 W, -0.3 pp
DM620G12RT-B66HSW 620 W 23.00% -0.290 32.3 kg Very close match
DM630G12RT-B66HSW 630 W 23.30% -0.290 32.3 kg Very close match
DM635G12RT-B66HSW 635 W 23.50% -0.290 32.3 kg +10 W, +0.4 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +55 W, lighter, +2.1 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +75 W, cooler, +1.9 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +70 W, cooler, +1.8 pp

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty coverage applies to DMEGC INFINITY RT panels (DMxxxG12RT-B66HSW)?
The DMEGC INFINITY RT series comes with a 15-year product warranty and a 30-year linear power output warranty. First-year degradation does not exceed 1%, with subsequent annual degradation capped at 0.4%. This places the series among the top performers in the N-type TOPCon segment in terms of long-term durability, directly supporting predictable energy yield projections over the full design lifetime of the installation.
What does the bifacial design of DMEGC INFINITY RT panels mean in practice, and does it actually increase energy yield?
DMEGC INFINITY RT modules are bifacial with a bifaciality factor of approximately 80%, meaning the rear side of the module captures irradiance reflected from the ground surface and converts it into additional electricity. In real-world conditions — ground-mounted systems with light-colored substrates or rooftop installations with reflective membranes — energy yield gains of several to more than ten percent over standard monofacial panels are achievable. The effect is most pronounced on utility-scale PV farms where rear-side irradiance can be optimized through elevated mounting and appropriate albedo management.
Are DMEGC INFINITY RT panels suitable for industrial rooftop systems and utility-scale PV farms?
Yes, the DMxxxG12RT-B66HSW series, with rated power output up to 635 Wp, is designed primarily for large-scale C&I and utility-scale PV applications. The modules measure 2382×1134×30 mm and feature a double-glass construction that enhances mechanical resistance under snow and wind load conditions. The high conversion efficiency of the N-type TOPCon cells — exceeding 22% — allows more energy to be harvested from the same land area compared to lower-efficiency alternatives.
How do DMEGC INFINITY RT panels perform in winter and under overcast conditions?
The INFINITY RT series is optimized for performance in diffuse light conditions and at lower operating temperatures. N-type TOPCon technology offers a favorable temperature coefficient, meaning the modules lose less power on hot days while also making more effective use of short irradiance windows during winter months. The enhanced optical properties of the front glass further improve irradiance absorption at low solar angles, which is particularly beneficial at higher latitudes during winter.
How does the TOPCon technology used in DMEGC INFINITY RT differ from older PERC panels?
TOPCon (Tunnel Oxide Passivated Contact) N-type cells achieve higher conversion efficiency than standard PERC cells and exhibit significantly lower light-induced degradation (LID/LeTID). In the DMEGC INFINITY RT series, this translates to annual degradation below 0.4%, compared to the typical 0.45–0.55% seen in PERC modules. N-type TOPCon cells also demonstrate superior PID (Potential Induced Degradation) resistance, which is especially important in large string configurations where higher system voltages increase PID risk.
Is DMEGC a Tier 1 manufacturer, and what does that mean for the buyer?
Yes, DMEGC Solar appears on the Tier 1 manufacturer lists published by leading PV industry rating agencies. Tier 1 status indicates that the manufacturer meets the financial and production criteria required by banks financing large-scale photovoltaic projects. For buyers, this provides assurance that both the product warranty and the power output warranty are backed by a financially stable company, and that the modules have undergone rigorous quality control processes consistent with bankability requirements.
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