--- title: "Neo Solar Power NESE 675-66MHT-G12 675W Solar Panel - Specs & Review | ComparePV" description: "Neo Solar Power NESE 675-66MHT-G12 675W solar panel. Specs: 21.73% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/neo-solar-power-nese-675-66mht-g12" updated: 2026-09-11 --- # Neo Solar Power NESE 675-66MHT-G12 Efficiency leader, short guarantee 320 panels in the segment PERC 650-700 W ## Identity - **Manufacturer:** Neo Solar Power - **Model:** NESE 675-66MHT-G12 - **Series:** NESE 655-675-66MHT-G12 - **Rated power:** 675 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 650-700 W (320 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 675 W | 660 W | Strong - top 6% | | | Module efficiency | 21.73% | 21.25% | Strong - top 4% | 7,370 | | Power density | 217.3 | 212.5 | Strong - top 6% | 7,349 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight (kg) | 33.5 kg | 34.5 kg | Strong - top 12% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 21% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.73% | 21.25% | Strong - top 4% | 7,370 | | Power density | 217.3 | 212.5 | Strong - top 6% | 7,349 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight per kWp | 49.6 | 52.3 | Strong - top 12% | 3,176 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 21% | 9,798 | ### Strengths - **21.73% module efficiency** - Top 4% of the PERC 650-700 W segment, against a median of 21.25%. Ranked 7,370th in the whole database. - **217.3 watts per square metre** - Top 6% of the PERC 650-700 W segment, against a median of 212.5. Ranked 7,349th in the whole database. - **49.6 kg per kWp** - Top 12% of the PERC 650-700 W segment, against a median of 52.3. ### Watch out for - **25 year performance warranty** - Bottom 21% of the PERC 650-700 W segment, against a median of 30 yrs. - **Best for:** Utility-scale, commercial and shaded-installations. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 675 W - **Efficiency:** 21.73 % - **Voltage at Pmax (Vmp):** 38.70 V - **Current at Pmax (Imp):** 17.45 A - **Open-circuit voltage (Voc):** 46.20 V - **Short-circuit current (Isc):** 18.52 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 33.5 kg - **Area:** 3.11 m2 - **Power density:** 217.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **Output after 30 years:** 552 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7370 of 14005 | | Power density | 7349 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 3176 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **G12 format and high power density** - 655-675 Wp output from G12-format (132 half-cut) cells delivers more energy per module than older M10 formats, shortening strings, reducing DC connections, and lowering BoS costs in large ground-mount and C&I installations. - **Efficiency matches segment leaders** - The 21.09-21.73% efficiency range is on par with direct 675 W-class peers - Q-Cells Q.PEAK DUO ML-G12S (21.7%), BYD AURO MSTK-33 (21.73%), and Trina Vertex TSM-DE21 (21.7%) - so despite not being a Tier-1 bankable manufacturer, the panel is technically competitive with the top of the segment. - **Bifacial technology boosts yield** - Dual-side generation captures light reflected from the ground surface (gravel, roofing membrane, light-colored soil), adding a real energy uplift beyond front-side nameplate power under typical ground-mount or carport conditions. - **25-year power warranty to 84.8%** - The datasheet (2384-1303-35 V2.1) guarantees 93.05% power after 10 years and 84.8% after 25 years - a standard linear degradation level for PERC technology, comparable to warranties offered by Trina and Q-Cells in this segment. - **Established manufacturer since 2005** - Neo Solar Power has operated in the PV market since 2005, and the NESE 655-675-66MHT-G12 series (released 2021, still active) is produced at the New East Solar Energy facility in Cambodia, giving it a longer manufacturing track record than many newer G12 module suppliers. ## Cons - **No Tier-1 bankable status** - Neo Solar Power does not appear on the BNEF Tier 1 list for PV modules, unlike peers such as Trina Solar and Q-Cells - this can complicate project financing for banks that require Tier-1 bankability as a lending condition. - **PERC, not N-type cell technology** - PERC cells have a higher LID/LeTID degradation coefficient and weaker high-temperature performance than newer N-type TOPCon/HJT cells, which by 2026 already dominate Tier-1 manufacturer lineups at comparable 655-675 W power levels. - **Shorter product warranty (12 years)** - The 12-year product warranty is shorter than the 15-year standard now offered by many Tier-1 manufacturers (e.g. Trina, Q-Cells) in the 675 W power class, which may affect risk assessment for projects with a 25+ year horizon. ## About this series The Neo Solar Power NESE 655-675-66MHT-G12 series consists of modules designed for large-scale installations, where high power density and quick assembly are crucial. The use of **monocrystalline cells in G12 format** allows for greater energy generation from fewer modules, which simplifies string design and reduces the number of DC connections. A key advantage of this series is **bifacial technology** - the panel operates not only from the front, but also utilizes reflected light from the ground, which effectively increases energy generation in suitable conditions (bright ground, gravel, roofs with membranes). In practice, the NESE 655-675-66MHT-G12 series solves the BOS cost problem: fewer modules mean fewer structures, cabling, and a shorter installation time. It also contributes to more stable operation due to **resistance to losses under partial shading**, which is typical for modern cell connections. This is a good choice for PV farms, carports, and C&I projects, where **maximizing energy output on a limited area** and overall life-cycle cost-effectiveness are important. ## Notable figures - At 21.7% efficiency, this panel is on par with typical \*\*PERC 650-700W\*\* modules - Power density of 217.3 W/m² packs 4.8 W/m² more into the same footprint vs \*\*PERC 650-700W\*\* median (212.5 W/m²) - At -0.34%/°C, hot weather performance is typical for \*\*PERC 650-700W\*\* panels - At 33.5 kg, weight matches the \*\*PERC 650-700W\*\* median - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### What warranty does the Neo Solar Power NESE 655-675-66MHT-G12 series come with? Neo Solar Power provides a 12-year product warranty on the NESE 655-675-66MHT-G12 series. The linear power warranty covers 25 years: at least 93.05% of rated output after 10 years and a minimum of 84.8% after 25 years. These are standard terms for commercial-grade G12 modules, though Neo Solar Power is not currently listed as a Tier-1 manufacturer by independent bankability assessors. ### How much does the NESE 655-675-66MHT-G12 panel weigh, and is it suitable for pitched rooftop installations? The module weighs 33.5 kg and measures 2384 × 1303 × 35 mm — dimensions typical of 132-cell G12 format panels, significantly larger than standard 60- or 72-cell modules. Pitched rooftop installations require a robust racking system and lifting equipment. The NESE 655-675-66MHT-G12 series is best suited for ground-mounted systems, utility-scale PV farms, and carports where logistics and structural requirements are easier to manage. ### What are the real-world benefits of bifacial technology in the NESE 655-675-66MHT-G12 series? Bifacial technology allows the module to generate power from both the front surface and reflected irradiance captured at the rear. In practice, this delivers 5–15% additional energy yield depending on ground albedo. Maximum bifacial gains are achieved in ground-mounted systems with light-colored gravel or white roofing membrane, installed at least 0.5 m above the surface. On dark substrates or grass-covered ground, bifacial gains are minimal. ### How does the NESE 675W panel perform in high summer temperatures? The NESE 655-675-66MHT-G12 has a temperature coefficient of Pmax of -0.34%/°C. At a cell temperature of 65°C, typical on hot summer days, the module loses approximately 13.6% of its STC-rated power. This is comparable to other PERC G12-format modules and better than older polycrystalline cells. Thermal losses can be reduced by maintaining proper ventilation gaps in the racking structure. ### How does the G12 cell format in the NESE 655-675-66MHT-G12 compare to M10 or G10 modules? G12 refers to a 210 × 210 mm cell size, compared to 182 mm for M10. This larger format enables higher per-module power output (655–675 Wp), reducing module count per project, shortening installation time, and lowering BoS costs (racking, cabling, connectors). The trade-off is the need for string inverters with MPPT inputs rated for the higher Voc, which exceeds 38 V for this series. ### What types of installations are the NESE 655-675-66MHT-G12 modules best suited for? The NESE 655-675-66MHT-G12 series is optimized for large-scale projects: utility PV farms, C&I (commercial and industrial) installations, and carports. High power density (up to 21.73% module efficiency) maximizes energy yield per square meter of available area. Bifacial technology provides an additional advantage in ground-mounted systems with reflective surfaces. For typical residential 5–15 kW systems, G12-format modules are generally oversized and too heavy for standard rooftop racking. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1729755465479109-616651fff611.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.5 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, +3.5 pp, +5 yr warranty | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, +3.3 pp, +5 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +3.3 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, +3.3 pp, +5 yr warranty | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, +3.2 pp, +5 yr warranty | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +3.1 pp | | [Neo Solar Power NESE 655-66MHT-G12](https://comparepv.com/panel/neo-solar-power-nese-655-66mht-g12) | 655 W | -20 W, -0.6 pp | | [Neo Solar Power NESE 660-66MHT-G12](https://comparepv.com/panel/neo-solar-power-nese-660-66mht-g12) | 660 W | -15 W, -0.5 pp | | [Neo Solar Power NESE 665-66MHT-G12](https://comparepv.com/panel/neo-solar-power-nese-665-66mht-g12) | 665 W | -10 W, -0.3 pp | | [Neo Solar Power NESE 670-66MHT-G12](https://comparepv.com/panel/neo-solar-power-nese-670-66mht-g12) | 670 W | Very close match | | [Neo Solar Power NESE 695-66THB-G12](https://comparepv.com/panel/neo-solar-power-nese-695-66thb-g12) | 695 W | Cooler, heavier, +5 yr warranty | | [Neo Solar Power NESE 700-66THB-G12](https://comparepv.com/panel/neo-solar-power-nese-700-66thb-g12) | 700 W | Cooler, heavier, +5 yr warranty | | [Neo Solar Power NESE 705-66THB-G12](https://comparepv.com/panel/neo-solar-power-nese-705-66thb-g12) | 705 W | Heavier, +1.0 pp, +5 yr warranty | | [Neo Solar Power NESE 710-66THB-G12](https://comparepv.com/panel/neo-solar-power-nese-710-66thb-g12) | 710 W | Heavier, +1.1 pp, +5 yr warranty | | [Neo Solar Power NESE 715-66THB-G12](https://comparepv.com/panel/neo-solar-power-nese-715-66thb-g12) | 715 W | Heavier, +1.3 pp, +5 yr warranty | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +130 W, cooler, +3.4 pp | --- Source: https://comparepv.com/panel/neo-solar-power-nese-675-66mht-g12 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.