Skip to main content

ESM-640T

640 Wp TOPCon
ComparePV verdict

Light for its output, weak in heat

Rank 348 of 14,005
Compare panels Datasheet PDF
Power (Wp)
640
Strong · top 9%
Efficiency (%)
22.89
Typical · median 22.80%
Density (Wp/m²)
229.0
Typical · median 227.7
Temp (%/°C)
-0.360
Weak · bottom 1%
Weight (kg)
31.0
Strong · 1.7 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The Einnova Solarline TOPCon N-type Mono-crystalline 630-650W module series is an advanced solution for investors seeking maximum power density while maintaining the highest system longevity. The use of N-type cell technology eliminates the problem of light-induced degradation (LID), which directly translates to a more stable energy yield over several decades of operation. Thanks to the innovative TOPCon structure, these panels achieve significantly higher efficiency in low sunlight conditions, which is crucial in the Polish climate. High unit power of up to 650W allows for optimization of construction and cabling costs, making the investment more profitable. These modules are primarily dedicated to large photovoltaic farms and extensive commercial installations, where every kilowatt-hour per square meter of surface area counts. They are distinguished from the competition by an exceptionally low temperature coefficient, guaranteeing efficient operation even on hot days. By choosing this series, the user gains above-average resistance to aging effects and the certainty that the system will maintain its technical parameters significantly longer than standard P-type market solutions. This is a well-thought-out choice for professionals focusing on maximizing yields from large areas while simultaneously lowering the levelized cost of energy (LCOE).

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.89% 22.80% Typical 2,520
Power density 229.0 227.7 Typical 2,389
Temperature coefficient -0.360 -0.290 Weak · bottom 1% 12,345
Weight per kWp 48.4 53.1 Strong · top 16% 2,274
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 4 caution
Best for

Utility-scale, commercial and hot-climate.

Not ideal for

Hot climates.

Strengths
48.4 kg per kWp

Top 16% of the TOPCon 600-650 W segment, against a median of 53.1.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 1% of the TOPCon 600-650 W segment, against a median of -0.290. Ranked 12,345th in the whole database.

What owners get
N-type TOPCon Technology – No LID/LETID

N-type TOPCon cells eliminate both light-induced degradation (LID) and light and elevated temperature-induced degradation (LETID), which in P-type PERC modules cause power losses of 1.5–3% in the first year of operation. This results in a more linear and predictable energy yield throughout the full 30-year system lifetime.

Efficiency Up to 23.25% – Top-Tier Monofacial TOPCon

The peak efficiency of 23.25% matches the BYD AURO N NLBK-39 (23.25%) and is only 0.05 percentage points below the Astronergy ASTRO N5 Bifacial (23.3%), placing the series among the leading monofacial TOPCon products currently available on the market.

30-Year Product and Linear Power Warranty

The manufacturer provides a full 30-year warranty covering both product integrity and power output retention — 5 years longer than the 25-year industry standard offered by Trina Solar, JA Solar, and LONGi. The extended warranty directly reduces investment risk and can improve project financing terms.

High Unit Power Output Up to 650 Wp

The 630–650 Wp power range reduces the module count per installation: a 1 MWp project requires approximately 1,540 modules, compared to ~2,300 modules with typical 430 Wp panels. This shortens DC cabling runs, reduces the number of MC4 connectors, and lowers installation labor costs, improving overall project LCOE.

Superior Low-Irradiance Performance

N-type TOPCon technology maintains efficiency at 80–88% of STC values at an irradiance level of 200 W/m², compared to 70–75% for P-type PERC modules. This is a significant advantage in climates with a high proportion of partially overcast hours, such as in Poland.

Trade-offs
Monofacial Design – Disadvantage for Utility-Scale Projects

The series is monofacial (is_bifacial: false), whereas two of the three direct peer comparables — the Astronergy ASTRO N5 and the Jinko Tiger Neo 66HL4M-BDX — are bifacial dual-glass modules. On ground-mounted arrays with a high-albedo surface, bifacial gain typically delivers 10–25% additional yield from the rear side, translating to meaningfully higher annual energy output for the same installed area and capital cost in large utility-scale projects.

Lower Efficiency Than the Peer Comparables Leader

The series' peak efficiency of 23.25% falls short of the Jinko Solar Tiger Neo 66HL4M-BDX at 24.06% — a gap of 0.81 percentage points. At equal array area, this corresponds to approximately 3.5% less energy production, which for a 500 kWp project can translate to several tens of MWh of lost generation annually.

No Confirmed BNEF Tier 1 Status

Einnova Solarline does not appear in publicly available BNEF Tier 1 module manufacturer lists (Q4 2025, Q1 2026), unlike its direct peer comparables — BYD, Jinko Solar, and Astronergy. This may complicate securing project finance (non-recourse debt) for utility-scale projects above a few MW, where lenders routinely require components sourced from Tier 1 manufacturers.

Notes from the database
  • At 22.9% efficiency, this panel is on par with typical TOPCon 600-650W modules
  • At 228.9 W/m² power density, roof space requirements are typical for TOPCon 600-650W panels
  • -0.36%/°C temperature coefficient - 0.07pp worse than TOPCon 600-650W median (-0.29%/°C), expect higher hot weather losses
  • 31.0 kg weight - 1.7 kg lighter than TOPCon 600-650W median (32.7 kg), reducing installation effort
  • In the top 18% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 640 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.89 % Typical Segment median 22.80%
Vmpp · Impp 46.28 V · 13.83 A Operating point at max power
Voc · Isc 56.23 V · 14.51 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×30 mm · 2.80 m² of roof
Weight 31.0 kg Strong Strong · 1.7 kg below median
Cells 156 · TOPCon Monocrystalline
Coefficient Pmax -0.360 %/°C Weak bottom 1% of its segment
Coefficient Voc · Isc -0.260 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 559 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Einnova Solarline in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 640 Wp appear here. The rest cover the whole series.

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
-

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

Heat losses
-0.360 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Einnova Solarline ESM-640T 640 W 22.89% -0.360 31.0 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +2.3 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +40 W, cooler, +2.3 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +35 W, cooler, +2.1 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +2.1 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +30 W, cooler, +1.9 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +30 W, cooler, +1.9 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +1.9 pp
ESM-630T 630 W 22.53% -0.360 31.0 kg -10 W, -0.4 pp
ESM-635T 635 W 22.71% -0.360 31.0 kg Very close match
ESM-645T 645 W 23.07% -0.360 31.0 kg Very close match
ESM-650T 650 W 23.25% -0.360 31.0 kg +10 W, +0.4 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +60 W, cooler, +2.1 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +55 W, cooler, +2.0 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +30 W, cooler, +1.9 pp

Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1813 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty is offered on the Einnova Solarline TOPCon N-type 630–650W panels?
The Einnova Solarline TOPCon N-type 630–650W series comes with a 30-year product warranty and a 30-year power output warranty. This represents one of the longest warranty standards available in the photovoltaic module market. The power warranty guarantees that the modules will maintain a specified performance level throughout the entire coverage period — a critical factor when projecting return on investment for large commercial installations and utility-scale PV farms.
How do TOPCon N-type panels differ from standard P-type PERC panels?
TOPCon technology built on N-type cells eliminates light-induced degradation (LID), a phenomenon that gradually reduces the output power of PERC modules over time. The 630–650W series also features a lower temperature coefficient (approximately −0.29 to −0.30%/°C), meaning the modules lose less power on hot days compared to PERC modules (−0.35%/°C). In practical terms, this translates to higher annual energy yield and more stable power production over decades of operation.
Are the Einnova Solarline 650W panels suitable for installation on a residential rooftop?
Due to their high unit power output of up to 650W and the large physical dimensions typical of modules in this class, this series is primarily designed for utility-scale PV farms and commercial installations. Mounting these panels on a standard single-family rooftop can be challenging owing to their weight, size, and the limited available roof area. For prosumer rooftop installations on pitched roofs, smaller modules from the manufacturer's portfolio would be a more appropriate choice.
How do the Einnova Solarline TOPCon 630–650W panels perform in low-irradiance conditions, such as on overcast days?
TOPCon technology is characterized by excellent performance under diffuse irradiance conditions — typical of Central European climates during autumn and winter. N-type cells maintain higher efficiency at low light intensities compared to PERC technology. This results in measurably more kilowatt-hours generated on cloudy days, which has a meaningful impact on the overall annual energy balance and the financial viability of the installation.
Are the Einnova Solarline TOPCon N-type 630–650W panels bifacial modules?
No, this specific Einnova Solarline TOPCon N-type 630–650W series is not a bifacial module. These panels collect energy exclusively from the front side, which simplifies the mounting system design and the selection of racking and support structures. For installations where the ground surface beneath the array has high albedo, bifacial variants from the manufacturer's product range would be worth considering.
How many Einnova Solarline 650W panels are needed to build a 1 MW photovoltaic farm?
At a peak power output of 650W per module, building a 1 MW (1,000 kW) PV farm requires approximately 1,539 panels. The high unit power of this series directly reduces the total number of modules, the amount of cabling, the number of mounting points, and overall installation time compared to lower-wattage modules. This drives down the total construction cost of the farm and shortens the payback period, contributing to a more favorable LCOE.
Add to compare