--- title: "Risen RSM132-8-740BHDG 740W Solar Panel - Specs & Review | ComparePV" description: "Risen RSM132-8-740BHDG 740W solar panel. Specs: 23.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-740bhdg" updated: 2026-09-11 --- # Risen RSM132-8-740BHDG Space saver, no clear weak spot 222 panels in the segment HJT 700-750 W ## Identity - **Manufacturer:** Risen - **Model:** RSM132-8-740BHDG - **Series:** Hyper-ion Pro / Heterojunction Hyper-ion Series (Bifacial Module) - **Rated power:** 740 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) | 740 W | 715 W | Strong - top 4% | | | Module efficiency | 23.80% | 23.02% | Strong - top 5% | 433 | | Power density | 238.2 | 230.2 | Strong - top 4% | 431 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight (kg) | 37.5 kg | 38.3 kg | Strong - top 5% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.80% | 23.02% | Strong - top 5% | 433 | | Power density | 238.2 | 230.2 | Strong - top 4% | 431 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight per kWp | 50.7 | 53.6 | Strong - top 5% | 4,101 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **238.2 watts per square metre** - Top 4% of the HJT 700-750 W segment, against a median of 230.2. Ranked 431st in the whole database. - **23.80% module efficiency** - Top 5% of the HJT 700-750 W segment, against a median of 23.02%. Ranked 433rd in the whole database. - **50.7 kg per kWp** - Top 5% of the HJT 700-750 W segment, against a median of 53.6. Ranked 4,101st in the whole database. - **Best for:** Utility-scale, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 740 W - **Efficiency:** 23.80 % - **Voltage at Pmax (Vmp):** 42.32 V - **Current at Pmax (Imp):** 17.50 A - **Open-circuit voltage (Voc):** 50.47 V - **Short-circuit current (Isc):** 18.56 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:** 33 mm - **Weight:** 37.5 kg - **Area:** 3.11 m2 - **Power density:** 238.2 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:** 0.30 % - **Output after 30 years:** 668 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 433 of 14005 | | Power density | 431 of 14005 | | Temperature coefficient | 13 of 14005 | | Weight | 4101 of 14005 | | Warranty | 21 of 14005 | ## About this series The Risen Hyper-ion Pro / Heterojunction Hyper-ion (bifacial) series was designed to maximize energy yield in real-world operating conditions - especially where every percentage point of yield matters. Its key advantage lies in the combination of **heterojunction HJT n-type cells** with **bifacial construction**, enabling efficient operation not only from the front side but also utilizing reflected light from the ground. This translates to higher yields on flat rooftops, ground-mounted installations, and surfaces with high albedo. Another standout feature is the **Hyper-link interconnect with reduced electrical/mechanical stresses**, which enhances both electrical and mechanical reliability, effectively minimizing the risk of micro-cracking and downtime losses. This series is appealing to investors seeking reliable performance in hot conditions, aided by its **favorable operation at high temperatures** typical of HJT technology. Additionally, the application benefits from **high resistance to degradation mechanisms**, simplifying long-term production planning and profitability projections over years. ## Notable figures - 23.8% module efficiency - 0.8pp better than the \*\*HJT 700-750W\*\* median of 23.0% - 238.2 W/m² power density - 8.0 W/m² more than \*\*HJT 700-750W\*\* median (230.2 W/m²), more power per roof area - Temperature coefficient of -0.24%/°C matches the \*\*HJT 700-750W\*\* median - Bifaciality factor of 90% can add 4-14% extra yield with reflective mounting surface - #433 for efficiency, #13 for temperature performance out of 14005 panels ## Questions ### What warranty does the Risen Hyper-ion Pro series come with, and what does it cover? The Risen Hyper-ion Pro carries a 15-year product warranty covering material and workmanship defects, plus a 30-year power output warranty. After 30 years of operation, the module must retain at least 90.3% of its rated power. First-year degradation is capped at 1%, with subsequent annual degradation not exceeding 0.3%. This is among the most competitive degradation schedules currently available on the market. ### Are Risen Hyper-ion Pro panels suitable for flat roofs or ground-mounted systems? Yes. The bifacial design of the Hyper-ion Pro is especially well-suited for flat roofs and ground-mounted installations. The module harvests both direct front-side irradiance and light reflected from the ground surface (snow, white geomembranes, gravel), potentially boosting energy yield by several percentage points compared to a monofacial module. The large panel dimensions (approx. 2384×1303 mm) should be factored into racking and structural design. ### How does HJT technology in the Risen Hyper-ion Pro differ from mainstream TOPCon modules? HJT cells combine crystalline silicon with amorphous silicon layers, resulting in a lower temperature coefficient (approximately -0.24%/°C versus ~-0.30%/°C for TOPCon). This means smaller power losses on hot days. HJT also achieves higher bifaciality (up to 90%) and better resistance to PID and LID. The trade-off is a higher per-watt price compared to volume-produced TOPCon modules. ### What is the peak power of the Risen Hyper-ion Pro and how does it compare to competing modules? The top variant in the series reaches 745 Wp with module efficiency up to 24.0%, placing it among the leading commercial modules available in 2025. By comparison, mainstream TOPCon modules of the same physical size typically top out at 730–740 Wp. Higher per-panel wattage means fewer modules are needed to reach a target system size, which can reduce mounting hardware and labor costs. ### Does the Risen Hyper-ion Pro perform well in summer when ambient temperatures exceed 35°C? Yes. HJT technology delivers one of the lowest temperature coefficients on the market at approximately -0.24%/°C. At a cell temperature of 65°C, typical on a hot summer day, the module loses roughly 9.6% of STC power, whereas a standard PERC module would lose 14–16%. In practice, Hyper-ion Pro installations generate more energy during peak summer heat than equivalent installed capacity in PERC or average TOPCon technology. ### What is the Hyper-link interconnect used in the Risen Hyper-ion Pro and does it matter for long-term reliability? Hyper-link is Risen's patented cell interconnection system designed to minimize mechanical stress at solder joints. Reduced stress lowers the risk of micro-cracks, a common cause of silent power degradation over time. Combined with HJT's inherent resistance to PID and LID, this contributes to more stable energy production throughout the 30-year power warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/298ba122d54ed2c06ea8a700c196c17f-ee8b86809e18.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | -40 W, lighter, +1.2 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | -45 W, lighter, +1.1 pp | | [AIKO AIKO-A690-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a690-mae78dw) | 690 W | -50 W, lighter, +0.9 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +50 W, heavier, +0.8 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +20 W, hotter, +0.7 pp | | [AIKO AIKO-A785-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a785-grh78dw) | 785 W | +45 W, heavier, +0.6 pp | | [Gokin GK-4-78HGBD-780M](https://comparepv.com/panel/gokin-gk-4-78hgbd-780m) | 780 W | +40 W, hotter, +0.5 pp | | [AIKO AIKO-A780-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a780-grh78dw) | 780 W | +40 W, heavier, +0.5 pp | | [Jetion JT755SLk(B)](https://comparepv.com/panel/jetion-jt755slk-b) | 755 W | +15 W, lighter, +0.5 pp | | [Trina Solar TSM-NEG21C.20Q-755](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-755) | 755 W | +15 W, hotter, +0.5 pp | | [Risen RSM132-8-650BMDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-650bmdg) | 650 W | -90 W, hotter, -2.9 pp | | [Risen RSM132-8-655M](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-655m) | 655 W | -85 W, hotter, -2.7 pp | | [Risen RSM132-8-660BMDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-660bmdg) | 660 W | -80 W, hotter, -2.6 pp | | [Risen RSM132-8-665BMDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-665bmdg) | 665 W | -75 W, hotter, -2.4 pp | | [Risen RSM132-8-670M](https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-670m) | 670 W | -70 W, hotter, -2.2 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +65 W, heavier, +1.3 pp | --- Source: https://comparepv.com/panel/risen-energy-co-ltd-rsm132-8-740bhdg 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.