--- title: "Runergy HY-DH156N8-635 635W Solar Panel - Specs & Review | ComparePV" description: "Runergy HY-DH156N8-635 635W solar panel. Specs: 22.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/runergy-hy-dh156n8-635" updated: 2026-09-11 --- # Runergy HY-DH156N8-635 Solid all-round for its segment 359 panels in the segment N-type 600-650 W ## Identity - **Manufacturer:** Runergy - **Model:** HY-DH156N8-635 - **Series:** HY-DH156N8 - **Rated power:** 635 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 600-650 W (359 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 635 W | 625 W | Strong - top 22% | | | Module efficiency | 22.70% | 22.77% | Typical | 3,307 | | Power density | 227.2 | 227.7 | Typical | 3,252 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 33.9 kg | 32.5 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.70% | 22.77% | Typical | 3,307 | | Power density | 227.2 | 227.7 | Typical | 3,252 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 53.4 | 52.7 | Typical | 7,288 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Utility-scale, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 635 W - **Efficiency:** 22.70 % - **Voltage at Pmax (Vmp):** 47.97 V - **Current at Pmax (Imp):** 13.24 A - **Open-circuit voltage (Voc):** 56.56 V - **Short-circuit current (Isc):** 13.89 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 156 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2465 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.9 kg - **Area:** 2.80 m2 - **Power density:** 227.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 555 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3307 of 14005 | | Power density | 3252 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 7288 of 14005 | | Warranty | 21 of 14005 | ## About this series The Runergy HY-DH156N8 series was designed with a focus on achieving high yield from the same surface area and ensuring stable operation for years. These modules are based on **N-type wafers in TOPCon technology**, which helps maintain parameters over time and reduces susceptibility to common degradation effects often seen in standard panels. The **double glass (dwuszybowa)** construction enhances environmental resistance and improves stiffness, which is important for demanding installation conditions. In practice, the HY-DH156N8 offers benefits where reducing construction and cabling costs is a priority-higher power per module simplifies the design and lowers BOS. Additionally, **bifacialness** helps increase energy production on the ground and on light-colored roofs, when the rear side has favorable reflection conditions. These modules will excel primarily in **PV farms and large commercial projects**, where longevity, durability, and predictable yield are key factors, not just "paper parameters." ## Notable figures - Efficiency of 22.7% matches the \*\*N-type 600-650W\*\* median - Power density of 227.2 W/m² matches the \*\*N-type 600-650W\*\* median - Temperature coefficient of -0.29%/°C matches the \*\*N-type 600-650W\*\* median - Weight of 33.9 kg is 1.4 kg above \*\*N-type 600-650W\*\* median (32.5 kg) - verify structural support - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### What warranty does the Runergy HY-DH156N8 series come with? The HY-DH156N8 series includes a 12-year product warranty and a 30-year linear power output warranty. After 30 years, the module is guaranteed to retain at least 87.4% of its rated power, with annual degradation below 0.40%. This is among the strongest power warranties in its class, resulting in highly predictable energy yield over the full system lifetime. ### How does the N-type TOPCon technology in the HY-DH156N8 compare to standard PERC panels? N-type TOPCon cells exhibit lower LID (light-induced degradation) and are more resistant to PID than conventional P-type PERC cells. The HY-DH156N8 achieves up to 23.1% efficiency with a Pmpp temperature coefficient of -0.29%/°C versus the typical -0.35%/°C for PERC. On hot days this translates into measurably higher energy output per unit of roof or ground area. ### Is the Runergy HY-DH156N8 bifacial, and when does bifaciality actually pay off? Yes, the HY-DH156N8 is a bifacial module — the rear glass surface captures light reflected from the ground or light-colored rooftops. The bifacial gain is most significant in ground-mounted systems with high albedo surfaces (sand, concrete, white agri-film) or flat rooftops with a white TPO/PVC membrane. On standard dark pitched roofs the rear-side contribution is minimal and should not be the primary purchasing argument. ### How heavy is the HY-DH156N8 panel and can it be installed on a regular pitched roof? The module weighs approximately 33.9 kg and measures 2465 × 1134 × 30 mm — a format typical of utility-scale applications. Due to its large size and weight, the HY-DH156N8 series is intended primarily for solar farms and large commercial projects on flat rooftops or ground-mounted racking. Installation on pitched residential roofs is very difficult without specialized lifting equipment. ### How do Runergy HY-DH156N8 panels perform in winter and at low temperatures? With a Pmpp temperature coefficient of -0.29%/°C, the HY-DH156N8 outperforms many PERC modules in cold conditions. At sub-zero temperatures panel efficiency actually rises, delivering higher output on sunny winter days. The double glass construction provides additional protection against moisture ingress, icing, and thermal stress cycling. ### What type of installations are Runergy HY-DH156N8 panels rated up to 645 Wp best suited for? The HY-DH156N8 series is designed for utility-scale solar farms and large commercial PV installations. The high per-module output of up to 645 Wp reduces the total module count and lowers BoS costs — including wiring, racking, and connectors. The bifacial design and rugged double glass encapsulation further increase annual energy yield and long-term durability in demanding field conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HY-DH156N8-Global-Ver25Q4630-650W-4e284cd8a3f1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +45 W, lighter, +2.5 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +40 W, lighter, +2.3 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.3 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 | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +2.1 pp | | [Runergy HY-DH156N8-625](https://comparepv.com/panel/runergy-hy-dh156n8-625) | 625 W | -10 W, -0.3 pp | | [Runergy HY-DH156N8-630](https://comparepv.com/panel/runergy-hy-dh156n8-630) | 630 W | Very close match | | [Runergy HY-DH156N8-640](https://comparepv.com/panel/runergy-hy-dh156n8-640) | 640 W | Very close match | | [Runergy HY-DH156N8-645](https://comparepv.com/panel/runergy-hy-dh156n8-645) | 645 W | +10 W, +0.4 pp | | [Runergy HY-DH156N8-650](https://comparepv.com/panel/runergy-hy-dh156n8-650) | 650 W | +15 W, +0.6 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +65 W, cooler, +2.3 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +60 W, cooler, +2.2 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, cooler, +2.1 pp | --- Source: https://comparepv.com/panel/runergy-hy-dh156n8-635 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.