Middle of its segment, modest efficiency
The Renesola RS6-550~560M-E3 series is a range of monocrystalline modules designed to maximize energy yield from limited space, both on rooftops and in larger ground-mounted installations. In practice, they stand out due to their positive power tolerance, which makes the actual performance of the system more predictable even during the component selection phase. The design, based on a half-cut cell arrangement, improves performance under partial shading and reduces connection losses, which is particularly important on roofs with chimneys, skylights, or varying levels of sunlight exposure.
Another advantage is the high efficiency of these modules in this power range - requiring fewer panels to achieve the desired output and simplifying installation. You will also appreciate the stable performance in hot weather and the IP68 weatherproof enclosure, which is better suited to harsh weather conditions. This makes it a good choice for installers looking for consistent parameters and a reasonable balance between power, reliability, and installation cost.
Ranking
Signals from the data
Residential, commercial, utility-scale and shaded-installations.
Tight roof space, roofs where every square metre has to count and hot climates.
Bottom 2% of the N-type 550-600 W segment, against a median of 22.45%. Ranked 8,708th in the whole database.
Bottom 2% of the N-type 550-600 W segment, against a median of 224.5. Ranked 8,497th in the whole database.
Bottom 3% of the N-type 550-600 W segment, against a median of -0.290. Ranked 10,419th in the whole database.
Built on gallium-doped N-type cells, the series reaches 21.29-21.68% efficiency, placing it at the top of the segment alongside comparable Exiom (21.7%) and Fellow Energy (21.7%) modules - the gap is marginal.
N-type technology with non-destructive cell cutting and MBB half-cut layout delivers a linear power decline of about 0.55% per year, clearly outperforming the typical 0.7-0.8% seen on older P-type PERC modules.
12 years of product warranty and 25 years of power warranty are the tier-1 standard for this segment, giving installers and investors predictable long-term performance over a quarter-century.
The IP68-rated junction box combined with stable performance at high temperatures reduces the risk of moisture-related failures and output loss during heat waves, which matters for unventilated rooftop installations.
Launched in 2021 by Renesola (founded 2005, BNEF-listed tier-1 bankable manufacturer), the series remains in active production, ensuring continued availability of warranty service and compatible replacement modules.
Unlike the comparable Premier Energies module (144 Half Cut PERC Bifacial Dual Glass, 560 Wp, 21.67%), the RS6-550~560M-E3 series is monofacial only, ruling out extra rear-side yield from albedo on ground-mount or high-reflectance sites.
12 years of product warranty remains standard, but some tier-1 manufacturers in the 550-560 Wp class now offer 15-year product coverage - worth checking when comparing supplier offers.
- At 21.3% efficiency, this panel is 1.2pp below the N-type 550-600W median of 22.4%
- 212.9 W/m² power density is 11.6 W/m² below N-type 550-600W median (224.5 W/m²) - requires larger installation area
- Temperature coefficient of -0.35%/°C is 0.06pp worse than N-type 550-600W median (-0.29%/°C) - higher losses in summer heat
- Weight of 27.0 kg (2.5 kg below N-type 550-600W median of 29.5 kg) allows easier transport and roof mounting
- Ranked #8708 out of 14005 panels for efficiency in the database
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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