--- title: "Hanersun HN21-66HT650W 650W Solar Panel - Specs & Review | ComparePV" description: "Hanersun HN21-66HT650W 650W solar panel. Specs: 20.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/hanersun-hn21-66ht650w" updated: 2026-09-11 --- # Hanersun HN21-66HT650W Middle of its segment, modest efficiency 320 panels in the segment PERC 650-700 W ## Identity - **Manufacturer:** Hanersun - **Model:** HN21-66HT650W - **Series:** HiTouch 6 - **Rated power:** 650 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) | 650 W | 660 W | Weak - bottom 7% | | | Module efficiency | 20.90% | 21.25% | Weak - bottom 3% | 10,072 | | Power density | 209.2 | 212.5 | Weak - bottom 7% | 10,011 | | Temperature coefficient | -0.349 | -0.340 | Weak - bottom 20% | 10,404 | | Weight (kg) | 38.5 kg | 34.5 kg | Weak - bottom 4% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.90% | 21.25% | Weak - bottom 3% | 10,072 | | Power density | 209.2 | 212.5 | Weak - bottom 7% | 10,011 | | Temperature coefficient | -0.349 | -0.340 | Weak - bottom 20% | 10,404 | | Weight per kWp | 59.2 | 52.3 | Weak - bottom 4% | 12,057 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **20.90% module efficiency** - Bottom 3% of the PERC 650-700 W segment, against a median of 21.25%. Ranked 10,072nd in the whole database. - **59.2 kg per kWp** - Bottom 4% of the PERC 650-700 W segment, against a median of 52.3. Ranked 12,057th in the whole database. - **209.2 watts per square metre** - Bottom 7% of the PERC 650-700 W segment, against a median of 212.5. Ranked 10,011th in the whole database. - **Best for:** Commercial, utility-scale and hot-climate. - **Not ideal for:** Tight roof space, weight-limited structures and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 650 W - **Efficiency:** 20.90 % - **Voltage at Pmax (Vmp):** 37.90 V - **Current at Pmax (Imp):** 17.16 A - **Open-circuit voltage (Voc):** 45.00 V - **Short-circuit current (Isc):** 18.39 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.349 %/degC - **Temperature coefficient of Voc:** -0.274 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 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:** 38.5 kg - **Area:** 3.11 m2 - **Power density:** 209.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 552 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10072 of 14005 | | Power density | 10011 of 14005 | | Temperature coefficient | 10404 of 14005 | | Weight | 12057 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Kiwa PVEL 2025 Top Performer** - Hanersun Energy earned Top Performer status in the 11th edition of the Kiwa PVEL PV Module Reliability Scorecard (2025), providing independent third-party validation of module durability across standardized stress tests (TC, DH, PID, LID+LeTID). Only a subset of tested manufacturers achieve this designation, differentiating the brand from direct peers in its comparison group (Hiwatt Solar, ZNShine). - **30-Year Linear Power Warranty** - The manufacturer guarantees linear power output for 30 years — 5 years longer than the 25-year industry standard offered by most competitors in this segment (e.g., ZNShine ZXM8-TP132 Series). The extended warranty horizon directly improves NPV and IRR metrics when modeling cash flows over the full lifecycle of a commercial installation. - **Up to 21.6% Efficiency — Peer-Group Leader** - The maximum module efficiency of 21.6% matches the Hiwatt Solar HW-M12/132H (670 W) and exceeds both the Techwise Summit Series and ZNShine ZXM8-TP132 (each at 21.57%) by 0.03 percentage points. Higher power density per m² has practical significance on constrained roof areas or in commercial projects with tight DC/AC ratio requirements. - **Bifacial Design + 210 mm Wafers** - The bifacial construction enables 10–30% additional energy yield under favorable ground-surface albedo conditions (light gravel, concrete, snow). The use of 210 mm wafers brings module output up to 670 W, reducing module count and BoS costs (wiring, racking, installation labor) per unit of installed capacity compared to smaller-format modules. ## Cons - **P-Type PERC Despite Implied N-Type Marketing** - Despite series marketing language that implies N-type cell technology, the actual technology is P-type PERC (cell\_technology: PERC per manufacturer data). PERC cells exhibit typical LID of 1.5–2% in the first year of operation and a higher temperature coefficient (approx. −0.35%/°C) versus N-type TOPCon (approx. −0.28%/°C), which meaningfully reduces long-term energy yield relative to the claims suggested in the product description. - **15-Year Product Warranty Below Industry Standard** - The product warranty stands at 15 years, while the industry standard among leading manufacturers (LONGi, JA Solar, Jinko, Trina) is 25 years. This gap may represent a barrier to project financing, as banks and infrastructure funds typically require a 25-year product warranty as a minimum module qualification criterion. - **No Current BNEF Bankable Status** - The manufacturer does not appear on the current BNEF Tier 1 bankable list (tier\_1\_bankable: false in context data, despite Hanersun having achieved BNEF Tier 1 status in 2023). The absence of a current bankability designation may complicate securing institutional financing and could disqualify the series from public tenders that require a bankability opinion for the module. - **2021-Generation Series — Superseded by HiTouch 6N/6H** - The HiTouch 6 (PERC) series dates from 2021 and has been technologically displaced by newer products from the same manufacturer: the HiTouch 6N (TOPCon, up to 740 W, 24.1% efficiency) and the HiTouch 6H (HJT, up to 735 W, 23.7% efficiency). By selecting the HiTouch 6, an investor foregoes clearly superior specifications within the same brand, which affects both long-term energy yield and the residual value of the installation. ## About this series The Hanersun HiTouch 6 series is an advanced solution based on **N-type TOPCon cell technology**, which effectively pushes the performance limits of modern photovoltaic systems. The use of larger silicon wafers allows for achieving **maximum power density** while maintaining optimal module dimensions, which directly translates to lower costs for the mounting structure and cabling. These panels effectively solve the problem of efficiency drops on hot days thanks to an **exceptionally low temperature coefficient**, guaranteeing stable energy production even in difficult weather conditions. Furthermore, minimal light-induced degradation ensures the longevity of the investment and higher energy yields throughout the entire lifecycle of the installation. The HiTouch 6 series stands out from the competition with its excellent performance under low sunlight, which is crucial in the Polish latitude. This product is primarily dedicated to demanding commercial investments and large-scale photovoltaic farms, where the lowest levelized cost of energy matters most. By choosing these modules, you gain **increased resistance to micro-cracks** and the assurance that the system will maintain its highest operating parameters for decades, maximizing the profitability of your PV project. ## Notable figures - Efficiency of 20.9% matches the \*\*PERC 650-700W\*\* median - Power density of 209.2 W/m² is 3.2 W/m² below \*\*PERC 650-700W\*\* median (212.5 W/m²) - needs more roof space - Temperature coefficient of -0.35%/°C matches the \*\*PERC 650-700W\*\* median - At 38.5 kg, this panel is 4.0 kg heavier than the \*\*PERC 650-700W\*\* median (34.5 kg) - more demanding for installation crews - Bifaciality factor of 75% can add 4-11% extra yield with reflective mounting surface ## Questions ### What warranty does the Hanersun HiTouch 6 solar panel come with? The Hanersun HiTouch 6 series comes with a 15-year product warranty and a 30-year linear power output warranty. The SMBB multi-busbar and half-cut cell design keeps annual degradation tightly controlled, so the module retains a high percentage of its rated output over its full lifespan. This is one of the longer warranty standards available in the utility-scale PERC segment. ### Is the Hanersun HiTouch 6 a bifacial panel, and what does that mean for my solar farm? Yes, the HiTouch 6 series is available in a bifacial configuration. The rear side captures light reflected from the ground — gravel, white TPO membrane, or grass — boosting total energy yield by 5–15% compared to a monofacial module with no additional land footprint required. The bifacial gain is most pronounced on ground-mounted farms with bright, reflective surfaces. ### How does the Hanersun HiTouch 6 670W differ from the HiTouch 6N TOPCon series? The HiTouch 6 670W is built on mono PERC technology using 210 mm wafers, reaching up to 21.6% module efficiency. The HiTouch 6N uses next-generation N-type TOPCon cells, pushing output to 700 W and efficiency beyond 22.7%. HiTouch 6 is the cost-effective choice for large-scale farms where LCOE matters more than peak efficiency. ### Can Hanersun HiTouch 6 panels handle strong wind and heavy snow loads in Central Europe? Yes, HiTouch 6 modules are certified for a front wind load of 2,400 Pa and a snow load of 5,400 Pa. The half-cut cell layout also limits the impact area of potential micro-cracks, keeping operational parameters stable under harsh winter conditions typical of Central and Eastern Europe. ### What is the maximum power output and efficiency of the Hanersun HiTouch 6 module? The Hanersun HiTouch 6 series peaks at 670 Wp with module efficiency up to 21.6%. These figures are achieved through 210 mm PERC cells combined with SMBB multi-busbar technology and a half-cut layout, which reduces internal resistance and improves performance under partial shading conditions. ### Is Hanersun a Tier 1 manufacturer, and does it matter when choosing HiTouch 6 modules? Hanersun is not currently listed as a Tier 1 manufacturer by major bankability rating agencies. In practice, project lenders may require additional collateral or higher equity contributions for large PV projects using these modules. However, the 15-year product warranty and 30-year power warranty demonstrate the manufacturer's commitment to long-term technical support for installed systems. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HN21-66HT-650-670-EN-3b4a15a52a33.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +4.1 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +4.1 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +50 W, cooler, +4.1 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +45 W, cooler, +4.0 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +3.9 pp | | [Hanersun HN21-66H655W](https://comparepv.com/panel/hanersun-hn21-66h655w) | 655 W | Lighter, +0.2 pp, -5 yr warranty | | [Hanersun HN21-66H660W](https://comparepv.com/panel/hanersun-hn21-66h660w) | 660 W | Lighter, +0.3 pp, -5 yr warranty | | [Hanersun HN21-66H665W](https://comparepv.com/panel/hanersun-hn21-66h665w) | 665 W | Lighter, +0.5 pp, -5 yr warranty | | [Hanersun HN21-66HT670W](https://comparepv.com/panel/hanersun-hn21-66ht670w) | 670 W | +20 W, +0.7 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +155 W, cooler, +4.2 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +150 W, cooler, +4.0 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +145 W, cooler, +3.9 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +140 W, cooler, +3.7 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +110 W, cooler, +3.6 pp | --- Source: https://comparepv.com/panel/hanersun-hn21-66ht650w 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.