--- title: "Solar Power Vietnam SPV720-66SN210 720W Solar Panel - Specs & Review | ComparePV" description: "Solar Power Vietnam SPV720-66SN210 720W solar panel. Specs: 22.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solar-power-vietnam-spv720-66sn210" updated: 2026-09-11 --- # Solar Power Vietnam SPV720-66SN210 Middle of its segment, modest efficiency 420 panels in the segment TOPCon 700-750 W ## Identity - **Manufacturer:** Solar Power Vietnam - **Model:** SPV720-66SN210 - **Series:** SPVXXX-66SN210 - **Rated power:** 720 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) | 720 W | 715 W | Typical | | | Module efficiency | 22.40% | 23.00% | Weak - bottom 1% | 4,774 | | Power density | 231.8 | 230.2 | Typical | 1,347 | | Temperature coefficient | - | -0.290 | | | | Weight (kg) | 37.8 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 | 22.40% | 23.00% | Weak - bottom 1% | 4,774 | | Power density | 231.8 | 230.2 | Typical | 1,347 | | Temperature coefficient | - | -0.290 | | | | Weight per kWp | 52.5 | 52.9 | Typical | 6,043 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **22.40% module efficiency** - Bottom 1% of the TOPCon 700-750 W segment, against a median of 23.00%. Ranked 4,774th in the whole database. - **Not ideal for:** Tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 720 W - **Efficiency:** 22.40 % - **Voltage at Pmax (Vmp):** 41.03 V - **Current at Pmax (Imp):** 17.55 A - **Open-circuit voltage (Voc):** 49.28 V - **Short-circuit current (Isc):** 18.55 A - **Max system voltage:** 1500 V ### Temperature ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 30 mm - **Weight:** 37.8 kg - **Area:** 3.11 m2 - **Power density:** 231.8 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:** 629 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4774 of 14005 | | Power density | 1347 of 14005 | | Temperature coefficient | 13924 of 14005 | | Weight | 6043 of 14005 | | Warranty | 21 of 14005 | ## About this series Solar Power Vietnam photovoltaic panels from the SPVXXX-66SN210 series represent a technological breakthrough in the large-scale installation sector, basing their design on **210 mm silicon cells**. The use of such large wafers allows for achieving a unit power exceeding 700 Wp, which directly translates into a smaller number of modules needed to obtain the planned farm capacity. A key distinguishing feature of the series is **N-type TOPCon technology**, which, compared to traditional P-type cells, offers significantly better resistance to LID degradation and higher energy yield at high temperatures. Thanks to the **bifacial dual-glass construction**, these systems effectively utilize reflected light, which in optimal ground conditions generates a significant additional energy profit. The utilized **SMBB (Super Multi-Busbar) architecture** improves current flow and increases mechanical resistance to micro-cracks, which is critical during long-term operation in difficult weather conditions. This series addresses the problem of high balance of system (BOS) costs, reducing expenditures on cabling and mounting structures. It is a solution dedicated to professional investors and photovoltaic farm developers seeking maximum profitability and a **30-year power output warranty**. This is an uncompromising proposition that stands out from the competition with unprecedented power density and the highest durability in the long-term perspective. ## Notable figures - At 22.4% efficiency, this panel is 0.6pp below the \*\*TOPCon 700-750W\*\* median of 23.0% - Power density of 231.8 W/m² matches the \*\*TOPCon 700-750W\*\* median - In the top 34% for efficiency among all TOPCon panels ## Questions ### What is the maximum power output of Solar Power Vietnam SPVXXX-66SN210 panels? The SPVXXX-66SN210 series delivers up to 735 Wp per module, achieved through large-format 210 mm silicon wafers. This high watt-per-module rating means fewer modules are required to reach the target farm capacity compared to standard 400–500 Wp panels, directly reducing balance-of-system (BoS) costs for racking structures and cabling. ### What warranties come with the SPVXXX-66SN210 — product and power output? Solar Power Vietnam provides a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. The extended power warranty is critical for utility-scale PV investors, as it supports reliable long-term energy yield projections and simplifies project bankability assessments with lenders and financial institutions. ### Does the N-type TOPCon technology in the SPVXXX-66SN210 series actually reduce panel degradation? Yes. N-type TOPCon cells are significantly less susceptible to light-induced degradation (LID) than conventional P-type PERC cells. This means lower power losses in the initial years of operation and better performance retention across the full 30-year warranty period. TOPCon also delivers superior temperature coefficients, maintaining higher output efficiency during peak solar irradiance on large ground-mounted farms. ### Do the bifacial dualglass modules in the SPVXXX-66SN210 series pay off on a grass-surface ground-mounted farm? Bifacial modules capture reflected irradiance from the ground surface. Grass typically has an albedo of 15–25%, which — with proper module clearance height of roughly 0.5–1 m above ground — translates into a measurable energy yield gain. Compared to monofacial panels, the bifacial gain can range from a few to over ten percent, meaningfully improving the overall LCOE of the investment. ### Is Solar Power Vietnam a Tier 1 manufacturer, and does it matter for project financing? Solar Power Vietnam is not currently listed as a Tier 1 manufacturer by agencies such as Bloomberg NEF. For projects relying on bank financing or leasing, this may require additional documentation — such as factory inspection reports or extended insurance policies — to meet lender acceptance criteria. Investors should verify module eligibility with their financing institution during due diligence before signing any EPC contract. ### How does the SMBB architecture in the SPVXXX-66SN210 panels affect long-term durability? Super Multi-Busbar (SMBB) technology uses a higher number of thinner busbars across the cell surface. Shorter current paths reduce resistive losses and — more importantly — lower mechanical stress within the cell, reducing the risk of microcracks. Over decades of thermal cycling (day/night, seasonal temperature swings), this directly translates to slower degradation and sustained output performance throughout the full 30-year power warranty. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/spv735-66sn210-2d671c329ea1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | -40 W, lighter, +2.8 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | -45 W, lighter, +2.6 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | -20 W, lighter, +2.6 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | -25 W, lighter, +2.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | -50 W, lighter, +2.4 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | -50 W, lighter, +2.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | -50 W, lighter, +2.4 pp | | [Solar Power Vietnam SPV715-66SN210](https://comparepv.com/panel/solar-power-vietnam-spv715-66sn210) | 715 W | Very close match | | [Solar Power Vietnam SPV725-66SN210](https://comparepv.com/panel/solar-power-vietnam-spv725-66sn210) | 725 W | +0.2 pp | | [Solar Power Vietnam SPV730-66SN210](https://comparepv.com/panel/solar-power-vietnam-spv730-66sn210) | 730 W | +10 W, +0.3 pp | | [Solar Power Vietnam SPV735-66SN210](https://comparepv.com/panel/solar-power-vietnam-spv735-66sn210) | 735 W | +15 W, +0.5 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +85 W, heavier, +2.7 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +80 W, heavier, +2.5 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +75 W, heavier, +2.4 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +70 W, heavier, +2.2 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +40 W, +2.1 pp | --- Source: https://comparepv.com/panel/solar-power-vietnam-spv720-66sn210 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.