--- title: "Isola New Energy YH715W-33MHD/MH 715W Solar Panel - Specs & Review | ComparePV" description: "Isola New Energy YH715W-33MHD/MH 715W solar panel. Specs: 23.02% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/isola-new-energy-yh715w-33mhd-mh" updated: 2026-09-11 --- # Isola New Energy YH715W-33MHD/MH Middle of its segment, weak in heat 420 panels in the segment TOPCon 700-750 W ## Identity - **Manufacturer:** Isola New Energy - **Model:** YH715W-33MHD/MH - **Series:** 210M HALF CELL Bifacial Topcon Technology - **Rated power:** 715 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 700-750 W (420 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 715 W | 715 W | Typical | | | Module efficiency | 23.02% | 23.00% | Typical | 1,797 | | Power density | 230.2 | 230.2 | Typical | 2,018 | | Temperature coefficient | -0.350 | -0.290 | Weak - bottom 1% | 10,419 | | Weight (kg) | 38.0 kg | 38.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.02% | 23.00% | Typical | 1,797 | | Power density | 230.2 | 230.2 | Typical | 2,018 | | Temperature coefficient | -0.350 | -0.290 | Weak - bottom 1% | 10,419 | | Weight per kWp | 53.1 | 52.9 | Typical | 6,946 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.350 %/°C temperature coefficient** - Bottom 1% of the TOPCon 700-750 W segment, against a median of -0.290. Ranked 10,419th in the whole database. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 715 W - **Efficiency:** 23.02 % - **Voltage at Pmax (Vmp):** 41.32 V - **Current at Pmax (Imp):** 17.32 A - **Open-circuit voltage (Voc):** 49.58 V - **Short-circuit current (Isc):** 18.09 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 38.0 kg - **Area:** 3.11 m2 - **Power density:** 230.2 Wp/m2 ### Warranty and degradation - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.37 % - **Output after 30 years:** 624 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1797 of 14005 | | Power density | 2018 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 6946 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Efficiency at the top of the 710–720 Wp segment** - The efficiency range of 22.86–23.18% is identical to peer comparables Gamko GKA210N132 and Renesola RS9-NBG-E1 (both at 23.18%) and only 0.02 pp below DMEGC DMxxxG12T-B66HSW (23.2%). The series therefore sits at the very front of the 210 mm / 132-cell class with no meaningful energy-yield penalty versus direct competition. - **TOPCon N-type: lower Tcoeff. and LID immunity** - TOPCon N-type panels deliver a typical Pmax temperature coefficient of -0.30%/°C versus -0.34%/°C for P-type PERC. At NOCT = 45°C and summer cell temperatures of +70°C, the gap amounts to ~+1.2% retained power output. N-type substrates show virtually zero Light-Induced Degradation (LID/LeTID), reducing real annual degradation to 0.4–0.5% vs. 0.6–0.8% for PERC. - **Bifacial TOPCon with ~85% bifaciality factor** - TOPCon cells achieve a bifaciality factor of ~85% versus ~70% typical for PERC bifacial modules. In ground-mounted systems with a reflective surface (albedo 0.2–0.4) this translates to 8–25% additional rear-side energy gain, corroborated by independent field data (Energy Science & Engineering, 2025: TOPCon delivered +8.16% yield vs. bifacial PERC in vertical-mount conditions). - **30-year linear power warranty** - The manufacturer provides a 30-year linear power warranty (typically ≥87.4% of Pnom after 30 years for TOPCon 30Y class). Most tier-2 PERC modules offer only a 25-year warranty with an end-of-life guarantee of 84.8%, giving this series a measurable LCOE advantage over the full installation lifecycle. - **Half-cut 132-cell architecture with 210 mm wafers** - Splitting each 210 mm cell in half reduces resistive losses (I²R) by ~50% compared to full-cell 210 mm modules at the same rated power. The series also delivers improved partial-shading tolerance by operating as two independent half-strings, limiting losses in rooftop systems with obstructions or ground-mounted arrays with row-to-row shading. ## Cons - **Not on BNEF Tier-1 list** - Zhejiang Isola New Energy (est. 2006, declared production capacity ~500 MW–3 GW) does not appear on the BNEF Tier-1 Solar Module Manufacturers list for Q1 2026, which includes Longi, JA Solar, Trina Solar, Canadian Solar, and other leading manufacturers. Tier-1 status is a standard requirement in most term sheets for bank-financed projects above 1 MWp — its absence can increase financing costs or result in rejection during lender due diligence. ## About this series The Isola New Energy 210M HALF CELL Bifacial Topcon Technology series is an advanced solution based on **N-type cells** that redefines performance standards in the Polish renewable energy sector. The use of large 210 mm silicon wafers combined with half-cut cell architecture allows for a significant reduction in resistance losses and better performance in demanding partial shading conditions. A key advantage of these modules is **bifacial technology**, which enables the generation of additional energy from the back side of the panel, resulting in a clear increase in yields, especially for ground-mounted installations with a bright surface. Thanks to the use of **TOPCon technology**, the panels exhibit minimal light-induced degradation and significantly higher efficiency in diffuse light, effectively solving the problem of low performance on cloudy days. This series is primarily dedicated to investors focusing on **maximizing the profitability** of large-scale commercial projects and modern prosumer installations, where every kilowatt-hour matters. What distinguishes it from competing solutions is an **exceptional temperature coefficient**, which guarantees energy production stability even during extreme summer heat, ensuring investment safety and predictability over long years of operation in the variable Polish climate. ## Notable figures - At 23.0% efficiency, this panel is on par with typical \*\*TOPCon 700-750W\*\* modules - At 230.2 W/m² power density, roof space requirements are typical for \*\*TOPCon 700-750W\*\* panels - Temperature coefficient of -0.35%/°C is 0.06pp worse than \*\*TOPCon 700-750W\*\* median (-0.29%/°C) - higher losses in summer heat - Ranked #1797 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output of the Isola New Energy 210M HALF CELL Bifacial TOPCon panels and what installations are they designed for? Modules in the Isola New Energy 210M HALF CELL Bifacial TOPCon series reach a peak power of up to 720 Wp, placing them firmly in the utility-scale segment. They are primarily intended for large commercial installations and solar farms, but also suit ambitious prosumer systems where maximizing energy yield per square meter of roof or ground area is the priority. ### How long is the power output warranty on the Isola New Energy 210M Bifacial TOPCon series? The manufacturer provides a 30-year linear power output warranty for this series. This means that after 30 years of operation the panel must retain at least the minimum power percentage stated in the warranty document. N-type TOPCon technology inherently suppresses light-induced degradation, resulting in more stable energy production throughout the entire warranty period. ### What does bifacial technology mean in the Isola 210M series and is the premium worth it? Bifacial means the panel generates electricity from both its front and rear surfaces. In ground-mount systems over a reflective surface, or when installed above a light-colored roof membrane, the additional rear-side energy gain typically ranges from 5 to 15 percent compared to a monofacial equivalent. The return on investment is faster wherever the albedo is high, such as concrete, light gravel, or snow cover in winter. ### Do the Isola New Energy 210M TOPCon panels perform well on cloudy days and in extreme heat? Yes, TOPCon technology on N-type cells delivers higher efficiency under diffuse irradiance compared to standard PERC cells, which translates into better yields in Poland's variable climate. A temperature coefficient close to minus 0.30 percent per degree Celsius also means smaller power losses during summer heat waves than older technologies, keeping annual energy production stable and predictable. ### How do the TOPCon cells in the Isola 210M series differ from widely used PERC cells? TOPCon is the next generation beyond PERC. The key difference is a tunnel-oxide passivating contact layer on the rear side that drastically reduces carrier recombination. The result is cell efficiency often exceeding 23 percent, significantly lower light-induced degradation, and better low-light performance. The Isola 210M series uses N-type wafers, which further extends the module's practical service life well beyond the stated 30-year warranty. ### Do the large 210M module dimensions of the Isola series cause problems during installation on a pitched roof? 210M-class modules rated at 720 Wp have large dimensions, approximately 2280 by 1134 mm, and weigh around 30 to 35 kg. On pitched roofs this requires a robust racking structure and an experienced installation crew. These modules are far more practical in ground-mount systems or on large, unobstructed roof planes of industrial buildings. For typical residential roofs, smaller modules in the 400 to 500 Wp range are a more manageable choice. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/topcon710w-720w-2384x1303x33-bf7d4cf24568.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +2.2 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +2.0 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, lighter, +2.0 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +1.8 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, lighter, +1.8 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | Cooler, lighter, +1.8 pp | | [Isola New Energy YH710W-33MHD/MH](https://comparepv.com/panel/isola-new-energy-yh710w-33mhd-mh) | 710 W | Very close match | | [Isola New Energy YH720W-33MHD/MH](https://comparepv.com/panel/isola-new-energy-yh720w-33mhd-mh) | 720 W | Very close match | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +90 W, cooler, +2.1 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +85 W, cooler, +1.9 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +80 W, cooler, +1.8 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +75 W, cooler, +1.6 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +45 W, cooler, +1.5 pp | | [AIKO AIKO-A785-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a785-grh78dw) | 785 W | +70 W, cooler, +1.4 pp | | [Gokin GK-4-78HGBD-780M](https://comparepv.com/panel/gokin-gk-4-78hgbd-780m) | 780 W | +65 W, cooler, +1.3 pp | --- Source: https://comparepv.com/panel/isola-new-energy-yh715w-33mhd-mh Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.