--- title: "Risen RSM132-8-700-715BHDG-705 705W Solar Panel - Specs & Review | ComparePV" description: "Risen RSM132-8-700-715BHDG-705 705W solar panel. Specs: 22.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-700-715bhdg-705" updated: 2026-09-11 --- # Risen RSM132-8-700-715BHDG-705 Middle of its segment, heavy for its output 222 panels in the segment HJT 700-750 W ## Identity - **Manufacturer:** Risen - **Model:** RSM132-8-700-715BHDG-705 - **Series:** Heterojunction Hyper-ion Series (Hyper-ion) - **Rated power:** 705 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 700-750 W (222 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 705 W | 715 W | Weak - bottom 22% | | | Module efficiency | 22.70% | 23.02% | Weak - bottom 20% | 3,307 | | Power density | 227.0 | 230.2 | Weak - bottom 22% | 3,361 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight (kg) | 40.0 kg | 38.3 kg | Weak - bottom 2% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.70% | 23.02% | Weak - bottom 20% | 3,307 | | Power density | 227.0 | 230.2 | Weak - bottom 22% | 3,361 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight per kWp | 56.7 | 53.6 | Weak - bottom 2% | 10,834 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **56.7 kg per kWp** - Bottom 2% of the HJT 700-750 W segment, against a median of 53.6. Ranked 10,834th in the whole database. - **22.70% module efficiency** - Bottom 20% of the HJT 700-750 W segment, against a median of 23.02%. - **227.0 watts per square metre** - Bottom 22% of the HJT 700-750 W segment, against a median of 230.2. - **Best for:** Utility-scale and hot-climate. - **Not ideal for:** Weight-limited structures, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 705 W - **Efficiency:** 22.70 % - **Voltage at Pmax (Vmp):** 41.86 V - **Current at Pmax (Imp):** 16.86 A - **Open-circuit voltage (Voc):** 49.92 V - **Short-circuit current (Isc):** 17.91 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.240 %/degC - **Temperature coefficient of Voc:** -0.220 %/degC - **Temperature coefficient of Isc:** 0.047 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 40.0 kg - **Area:** 3.11 m2 - **Power density:** 227.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 90.3 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 616 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3307 of 14005 | | Power density | 3361 of 14005 | | Temperature coefficient | 13 of 14005 | | Weight | 10834 of 14005 | | Warranty | 21 of 14005 | ## About this series The Risen Heterojunction Hyper-ion (Hyper-ion) series comprises HJT modules designed for maximum energy yield under real-world conditions - especially in locations where stable operation at high temperatures and long-term production predictability are critical. The key feature is the **HJT heterojunction technology**, which combines high efficiency with low temperature sensitivity and excellent performance in both-sided power generation. In practice, this translates to higher annual yields without the need for system oversizing. **0BB cells** (without traditional busbars) improve module structure connections and support resistance to micro-cracking, ensuring more reliable long-term performance. Additionally, **ultra-thin wafers** and low-temperature processes contribute to a lower carbon footprint, making the product ideal for environmentally demanding projects. The series also offers **high resistance to PID and LeTID**, making it suitable for large-scale PV farms, industrial installations, and demanding operational conditions where competitive modules often degrade over time. ## Notable figures - At 22.7% efficiency, this panel is on par with typical \*\*HJT 700-750W\*\* modules - Power density of 226.9 W/m² is 3.2 W/m² below \*\*HJT 700-750W\*\* median (230.2 W/m²) - needs more roof space - Temperature coefficient of -0.24%/°C matches the \*\*HJT 700-750W\*\* median - At 40.0 kg (1.7 kg above \*\*HJT 700-750W\*\* median of 38.3 kg), requires checking roof load capacity - Bifaciality factor of 90% can add 4-14% extra yield with reflective mounting surface ## Questions ### What is the temperature coefficient of Risen Hyper-ion panels and why does it matter in summer? Risen Hyper-ion modules feature a temperature coefficient of just -0.24%/°C, which is among the lowest values available on the market. By comparison, typical PERC panels reach -0.35%/°C. This means that on hot 35°C days, Hyper-ion panels lose significantly less power than competing modules, translating into measurably higher annual energy yield — particularly in installations exposed to high operating temperatures. ### What warranty does the Risen Hyper-ion series carry and what exactly does it cover? Risen provides a 15-year product warranty on Hyper-ion modules and a 30-year linear power warranty. Under the power warranty, degradation is capped at 1% in the first year and 0.3% per year thereafter, guaranteeing at least 80% of rated power output after three decades of operation. This is one of the most favorable warranty schedules available in the HJT module category. ### Are Risen Hyper-ion panels bifacial and how much extra energy can they generate from reflected light? Yes, the Hyper-ion series is bifacial with a bifaciality factor of up to 90%. The rear side of the module captures irradiance reflected from the ground surface, generating additional power. With a bright albedo surface such as gravel, light concrete, or snow, the energy gain can range from 5% to 20% above nameplate figures. The bifacial benefit is maximized in ground-mounted installations with sufficient clearance beneath the modules. ### How does HJT technology in the Risen Hyper-ion differ from the widely used TOPCon? Both are N-type technologies, but HJT uses a thin amorphous silicon passivation layer surrounding the crystalline cell, enabling lower-temperature manufacturing processes. As a result, HJT cells achieve a lower temperature coefficient (-0.24%/°C vs. approximately -0.30%/°C for TOPCon), higher bifacial symmetry, and a smaller carbon footprint. TOPCon offers lower production costs, while HJT holds the advantage in high-temperature conditions and projects with environmental compliance requirements. ### Are Risen Hyper-ion 715 W modules suited for utility-scale solar farms, or are they designed for rooftop installations? The Hyper-ion 715 W series is primarily engineered for utility-scale and industrial PV projects. High resistance to PID and LeTID, low thermal degradation, and the bifacial 132-cell format make these modules well suited for large ground-mounted plants. For residential sloped rooftops with limited space, the physical size of the module (approx. 2284×1303 mm) and its weight should be evaluated against the mounting structure's load capacity. ### What does 0BB cell technology in the Risen Hyper-ion mean and does it improve long-term durability? 0BB stands for zero busbar — the cells contain no conventional metallic busbars running across their surface. Instead, Risen uses ultra-fine interconnections via their proprietary Hyper-link technology. Eliminating thick busbars reduces mechanical stress on the cell, lowers the risk of microcracks, and improves current flow uniformity. In practice, this contributes to better resistance to mechanical degradation during transport and long-term field operation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/hsa-rsm132-8-700-715bhdg-iec1500v-35mm-2025h1-2-en-a9eb94bcf018.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | -25 W, lighter, +2.5 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | -30 W, lighter, +2.3 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Hotter, lighter, +2.3 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Hotter, lighter, +2.2 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | -35 W, lighter, +2.1 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | -35 W, lighter, +2.1 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | -35 W, lighter, +2.1 pp | | [Risen RSM132-8-650BMDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-650bmdg) | 650 W | -55 W, hotter, -1.8 pp | | [Risen RSM132-8-655M](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-655m) | 655 W | Hotter, lighter, -1.6 pp | | [Risen RSM132-8-660BMDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-660bmdg) | 660 W | -45 W, hotter, -1.5 pp | | [Risen RSM132-8-665BMDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-665bmdg) | 665 W | -40 W, hotter, -1.3 pp | | [Risen RSM132-8-670M](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-670m) | 670 W | Hotter, lighter, -1.1 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +100 W, hotter, +2.4 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +95 W, hotter, +2.2 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +90 W, hotter, +2.1 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +85 W, hotter, +1.9 pp | --- Source: https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-700-715bhdg-705 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.