Light for its output, no clear weak spot
The Renesola RS9-685~705NG-E1 series is designed for maximum energy production in large-scale installations, where every square meter and stable performance over time are crucial. The use of N-type TOPCon cell technology helps minimize typical power losses over time and improves performance in real-world conditions, even at higher temperatures and with varying solar irradiance.
The module design emphasizes durability: tempered glass and robust construction ensure resistance to loads and wear in challenging environments. A key feature is a long, linear power warranty, which simplifies investment return planning and reduces risk for the investor. In practice, the RS9-685~705NG-E1 solves the problem of limited space by allowing for high power output from a smaller number of modules, which simplifies logistics and assembly on the DC side.
This series is particularly suitable for PV farms, large industrial rooftops, and projects where predictable yields and low degradation are more important than just the nominal specifications.
Ranking
Signals from the data
Commercial, utility-scale and hot-climate.
Top 5% of the N-type 700-750 W segment, against a median of 53.5. Ranked 1,740th in the whole database.
N-type TOPCon technology delivers lower LID/LETID degradation and better high-temperature performance than older P-type PERC cells, and with a temperature coefficient of -0.29%/°C it provides a more stable yield on large ground-mount installations.
The manufacturer guarantees 87.4% power retention after 30 years, a linear warranty standard comparable to peer products (Luxen N6, Hanersun HiTouch 6N) that simplifies LCOE modeling and lowers investor risk on utility-scale projects.
A power range of 685-705 Wp and efficiency up to 22.7% deliver high power density per square meter, reducing the module count, DC wiring, and mounting structure needed to reach a given target installation capacity.
The bifacial module with tempered glass on both sides captures additional energy from reflected light, which is especially valuable on PV farms with light-colored ground cover or elevated mounting structures.
Renesola, in operation since 2005, is classified as a Tier-1 bankable manufacturer, which eases project financing for banks and investment funds that require supplier bankability.
The RS9-685~705NG-E1 series launched in 2023, so there is no long-term (10+ year) field degradation data yet - its rating relies mainly on manufacturer datasheet claims rather than extensive operational history.
Dimensions of 2384 x 1303 x 33 mm and a weight of approximately 33.5 kg for the 705 Wp module require reinforced mounting structures and at least a two-person installation crew, which can raise logistics and installation costs compared to lighter standard modules.
- At 22.7% efficiency, this panel is on par with typical N-type 700-750W modules
- At 226.9 W/m² power density, roof space requirements are typical for N-type 700-750W panels
- At -0.29%/°C, hot weather performance is typical for N-type 700-750W panels
- 33.5 kg weight - 4.5 kg lighter than N-type 700-750W median (38.0 kg), reducing installation effort
- #3307 for efficiency, #2165 for temperature performance out of 14005 panels
Specifications
Datasheet charts
Measured curves published by Renesola in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 705 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here