Eurener Ultra 500W Back Contact Bifacial Panel | 24.5% Efficiency

Description

The Eurener MEPV Ultra 500W All Black N-Type Mono Bifacial panel (Ultra Premium) is the flagship model in Eurener's architectural-grade Ultra series, built with back contact cell technology to deliver a completely uninterrupted all-black front face and class-leading module efficiency for premium residential and commercial roofs.

Manufactured in Spain by Eurener, this double-glass bifacial module removes the front busbars entirely, routing all electrical contacts to the rear of the cell. The result is a 24.5% module efficiency — among the highest available in a residential-format panel — combined with a compact 2m² footprint that suits roofs where space or aesthetics are the priority.

500W

Nominal Power

24.5%

Module Efficiency

10%

Bifacial Gain

30 Yrs

Performance Warranty

25 Yrs

Product Warranty

Class A

Fire Rating

✓ Good to Know

This panel uses back contact N-type technology — all electrical connections sit on the rear of the cell, giving a completely uniform black front face with no visible busbars or grid lines. This is a distinct construction from Eurener's TOPCon Nexa series and delivers the highest efficiency in the Eurener range.

Key Features

Back Contact Technology

Removes busbars from the front cell surface, reducing shading losses and giving an uninterrupted all-black appearance ideal for architectural integration.

24.5% Module Efficiency

Combined N-type cell design and anti-reflective glass deliver class-leading power density, maximising output from a compact 2m² module area.

Bifacial Dual-Glass Construction

Double-glass build with bifacial cells captures reflected light from the rear side, adding up to 10% bifacial gain (550Wp) depending on installation and albedo.

Premium Architectural Finish

Full black anodised aluminium frame and black backsheet create a seamless, low-profile appearance suited to prestige residential and commercial rooftops.

Class A Fire Rating

Certified to Fire Rating Class A and BROOF (t4), meeting the highest roof fire classification for UK and European installations.

Long-Term Performance Warranty

Backed by a 25-year product warranty (extendable to 30 years for Premium Partners) and a 30-year linear performance warranty guaranteeing 88.85% output retention.

✓ Good to Know

Eurener has been awarded the EcoVadis Platinum Medal for three consecutive years, placing it in the top 1% of the most sustainable photovoltaic manufacturers assessed globally.

Technical Specification

Electrical Characteristics (STC)

Nominal power (Pmax)500 Wp

Module efficiency24.50%

Open-circuit voltage (Voc)41.44 V

Short-circuit current (Isc)15.29 A

Maximum power voltage (Vmp)34.24 V

Maximum power current (Imp)14.61 A

Bifacial Performance (10% Gain)

Nominal power (Pmax)550 Wp

Open-circuit voltage (Voc)41.44 V

Short-circuit current (Isc)16.82 A

Bifaciality factor80% ± 5%

Mechanical Specification

Solar cellsN-type bifacial monocrystalline, back contact

Front glass2mm anti-reflective tempered solar glass

Back glass1.6mm tempered solar glass

FrameBlack anodised aluminium

Junction boxIP68, 3 by-pass diodes

ConnectorOriginal MC4-Evo 2

Cable1200mm (±20%) length, 4mm² section

Dimensions1800 x 1134 x 30mm (±1%)

Area2.0 m²

Weight23.5 kg

Temperature Coefficients

Temperature coefficient of Isc (α)0.05%/°C

Temperature coefficient of Voc (β)-0.21%/°C

Temperature coefficient of Pmax (γ)-0.24%/°C

Operating temperature range-40°C to +85°C

NOCT45°C ± 2°C

Operating Parameters

Maximum system voltage1500 V DC

Maximum series fuse rating30 A

Power output tolerance0 to +3%

Fire ratingBROOF (t4) / Class A

Protection classClass II

Mechanical load — front5400 Pa

Mechanical load — back2400 Pa

Warranty & Certification

Product warranty25 years (+5 years for Premium Partners)

Linear performance warranty30 years

Power retention at year 3088.85%

Product code (MPN)MEPV500-T44L66A24P4

StandardsIEC 61215, IEC 61730, IEC 61701, IEC 62716, IEC TS 62804

Frequently Asked Questions

What makes the Ultra 500W different from Eurener's Nexa series?

The Ultra series uses back contact cell technology, moving all electrical connections to the rear of the cell. This removes visible busbars from the front, giving a fully uniform black finish and pushing module efficiency up to 24.5% — higher than the TOPCon-based Nexa range.

How much extra energy does the bifacial rear side generate?

With a bifaciality factor of 80% ± 5%, the rear side can add up to 10% additional output, taking the panel from 500Wp to 550Wp under favourable ground or roof reflectivity (albedo) conditions.

Is this panel suitable for a standard residential roof?

Yes. At 1800 x 1134mm and covering just over 2m², it uses a compact footprint designed for easy handling and installation on both pitched residential roofs and commercial arrays.

What warranty does the Ultra 500W carry?

Eurener provides a 25-year product warranty (extended to 30 years through Premium Partners) and a 30-year linear performance warranty, guaranteeing at least 88.85% of rated output remains at year 30.

What connectors does the panel use?

It ships with original MC4-Evo 2 connectors as standard, ensuring compatibility with the vast majority of UK string inverters and DC isolators.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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