--- title: "Heliene 156HC-635 M10 NTYP SL 635W Solar Panel - Specs & Review | ComparePV" description: "Heliene 156HC-635 M10 NTYP SL 635W solar panel. Specs: 22.73% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/heliene-156hc-635-m10-ntyp-sl" updated: 2026-09-11 --- # Heliene 156HC-635 M10 NTYP SL Middle of its segment, short guarantee 359 panels in the segment N-type 600-650 W ## Identity - **Manufacturer:** Heliene - **Model:** 156HC-635 M10 NTYP SL - **Series:** 156HC M10 NTYP SL Bifacial - **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 | 22.73% | 22.77% | Typical | 3,241 | | Power density | 227.3 | 227.7 | Typical | 3,230 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 11% | 6,093 | | Weight (kg) | 31.0 kg | 32.5 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 4% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.73% | 22.77% | Typical | 3,241 | | Power density | 227.3 | 227.7 | Typical | 3,230 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 11% | 6,093 | | Weight per kWp | 48.8 | 52.7 | Typical | 2,487 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 4% | 9,798 | ### Watch out for - **25 year performance warranty** - Bottom 4% of the N-type 600-650 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database. - **-0.300 %/°C temperature coefficient** - Bottom 11% of the N-type 600-650 W segment, against a median of -0.290. - **Best for:** Utility-scale and commercial. - **Not ideal for:** Owners who want a long output guarantee and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 635 W - **Efficiency:** 22.73 % - **Voltage at Pmax (Vmp):** 48.59 V - **Current at Pmax (Imp):** 13.07 A - **Open-circuit voltage (Voc):** 57.54 V - **Short-circuit current (Isc):** 13.79 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 156 - **Bifacial:** yes ### Physical - **Length:** 2464 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 31.0 kg - **Area:** 2.79 m2 - **Power density:** 227.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 90.0 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 555 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3241 of 14005 | | Power density | 3230 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 2487 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **N-type TOPCon cell technology** - N-type TOPCon cells deliver a lower degradation rate (0.4% annually after year one per the manufacturer datasheet) and better high-temperature performance than legacy PERC cells, translating into higher annual energy yield across the 25-year service life. - **Bifacial design with half-cut cells** - Combining bifacial construction with half-cut cells reduces series resistance losses and improves partial-shading tolerance, while also capturing albedo light reflected from the ground — a clear advantage for ground-mount installations and high-reflectivity surfaces. - **High efficiency up to 23.08%** - Efficiency of 22.01–23.08% places the series near the top of its segment, on par with Runergy's HY-DH156N8 (23.1%) and clearly ahead of Resun Solar's RS9K-M (22.79%) at the same 645 Wp max power. - **Tier-1, North American manufacturing** - Heliene is a Tier-1 bankable manufacturer with factories in Minnesota, Florida, and Ontario (Canada), and is listed on PVEL's Top Performer list. Unlike Chinese peer comparables (Runergy, Resun Solar), the module qualifies for Buy America/domestic-content programs, a meaningful factor for project financing in the US and Canada. - **Reinforced mechanical build** - 3.2mm tempered glass and a reinforced frame engineered for higher snow and wind loads improve hail resistance and reduce failure risk in harsh climate conditions. ## Cons - **Shorter product warranty than some N-type peers** - The 15-year product warranty trails what some N-type competitors now offer (e.g., 25-year product warranties on Trina Vertex N or JinkoSolar Tiger Neo series), despite matching the industry-standard 25-year linear power warranty. This can affect bankability scoring on long-horizon financed projects. ## About this series The 156HC M10 NTYP SL Bifacial series is designed for investors who want to squeeze maximum energy yield out of limited roof or ground space. The module is built on **N-type TOPCon technology**, which, unlike older PERC cells, offers lower degradation over time and better performance at high temperatures, translating into a real gain in annual energy output. The use of **half-cut cells** reduces series resistance losses and improves the panel's resilience to partial shading, keeping production stable even under less favorable conditions. The **bifacial design** captures light reflected off the ground, making this model particularly attractive for solar farms and installations on light, reflective surfaces. Mechanical durability is supported by a **reinforced frame** engineered for higher snow and wind loads, while **3.2mm tempered glass** adds extra resistance to mechanical damage and hail. This makes the series a solid choice for both commercial investors and developers of large ground-mount projects who prioritize low failure rates and predictable performance over the long service life of the installation. ## Notable figures - Efficiency of 22.7% matches the \*\*N-type 600-650W\*\* median - Power density of 227.3 W/m² matches the \*\*N-type 600-650W\*\* median - At -0.30%/°C, hot weather performance is typical for \*\*N-type 600-650W\*\* panels - At 31.0 kg, this panel is 1.5 kg lighter than \*\*N-type 600-650W\*\* median (32.5 kg) - easier handling during installation - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### What is the maximum power output of the Heliene 156HC M10 NTYP SL Bifacial panels? Panels in this series reach a maximum power output of up to 645 Wp. This is achieved through N-type TOPCon half-cut cells combined with a bifacial design that also captures reflected light from the ground surface. As a result, this series delivers higher energy yield per unit of roof or ground area compared to comparable modules built on older PERC technology. ### How does N-type TOPCon technology differ from PERC in Heliene panels? N-type TOPCon cells, used in the 156HC M10 series, feature lower annual degradation and better performance at high temperatures compared to older P-type PERC cells. In practice, this means higher energy production during summer months and a slower decline in panel efficiency over the years, resulting in a better return on investment over the long term. ### Are Heliene 156HC M10 bifacial panels worth it on a single-family home roof? Bifacial construction performs best where the panel can capture light reflected from a bright surface, such as on solar farms, flat roofs with light-colored coverings, or ground covered with gravel or snow. On a typical sloped roof with dark tiles mounted close to the surface, the bifacial gain will be limited, though the panel still retains all the benefits of TOPCon and half-cut technology. ### What warranty comes with the Heliene 156HC M10 NTYP SL Bifacial series? The manufacturer offers a 15-year product warranty and a 25-year linear power output warranty. As a Tier 1 manufacturer headquartered in Canada, Heliene provides stable servicing conditions and predictable module performance throughout the system's lifetime, which matters both for commercial investors and homeowners planning a 20-25 year installation. ### Do half-cut cells in Heliene panels improve shading tolerance? Yes, splitting cells into halves (half-cut) reduces series resistance losses and means partial shading, from a chimney, tree, or neighboring building, has less impact on the panel's overall power output. As a result, an installation using 156HC M10 panels maintains more stable energy production compared to modules built with full, undivided cells. ### How thick is the glass on Heliene 156HC M10 panels and are they hail resistant? The panels feature 3.2 mm tempered glass, providing additional resistance to mechanical damage and hail. Combined with a reinforced frame designed for increased snow and wind loads, the module suits areas with harsher climate conditions as well as large ground-mounted installations that require low failure rates. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HSPE_156HC_M10_NTYP_SL_Bifacial_Rev02-092025-15ea02b593d9.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Lighter, +2.5 pp, +5 yr warranty | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +45 W, +2.5 pp, +5 yr warranty | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +40 W, +2.3 pp, +5 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Lighter, +2.3 pp, +5 yr warranty | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, +2.1 pp, +5 yr warranty | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, +2.1 pp, +5 yr warranty | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Lighter, +2.1 pp, +5 yr warranty | | [Heliene 156HC M10 SL Bifacial - 565W class](https://comparepv.com/panel/heliene-156hc-m10-sl-bifacial-565w-class) | 565 W | -70 W, hotter, -2.5 pp | | [Heliene 156HC M10 SL Bifacial - 570W class](https://comparepv.com/panel/heliene-156hc-m10-sl-bifacial-570w-class) | 570 W | -65 W, hotter, -2.3 pp | | [Heliene 156HC M10 SL Bifacial - 575W class](https://comparepv.com/panel/heliene-156hc-m10-sl-bifacial-575w-class) | 575 W | -60 W, hotter, -2.1 pp | | [Heliene 156HC M10 SL Bifacial - 580W class](https://comparepv.com/panel/heliene-156hc-m10-sl-bifacial-580w-class) | 580 W | -55 W, hotter, -1.9 pp | | [Heliene 156HC M10 SL Bifacial - 585W class](https://comparepv.com/panel/heliene-156hc-m10-sl-bifacial-585w-class) | 585 W | -50 W, hotter, -1.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +65 W, +2.3 pp, +5 yr warranty | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +60 W, +2.2 pp, +5 yr warranty | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | Cooler, +2.1 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/heliene-156hc-635-m10-ntyp-sl 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.