--- title: "CW Enerji CWT460-144MB 460W Solar Panel - Specs & Review | ComparePV" description: "CW Enerji CWT460-144MB 460W solar panel. Specs: 21.13% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/cw-enerji-cwt460-144mb" updated: 2026-09-11 --- # CW Enerji CWT460-144MB Efficiency leader, weak in heat 449 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** CW Enerji - **Model:** CWT460-144MB - **Series:** 144MB - **Rated power:** 460 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 450-500 W (449 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 460 W | 460 W | Typical | | | Module efficiency | 21.13% | 20.82% | Strong - top 18% | 9,239 | | Power density | 211.3 | 208.5 | Strong - top 19% | 9,238 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 8% | 12,345 | | Weight (kg) | 24.5 kg | 24.5 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 20% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.13% | 20.82% | Strong - top 18% | 9,239 | | Power density | 211.3 | 208.5 | Strong - top 19% | 9,238 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 8% | 12,345 | | Weight per kWp | 53.3 | 53.1 | Typical | 7,102 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 20% | 21 | ### Strengths - **21.13% module efficiency** - Top 18% of the PERC 450-500 W segment, against a median of 20.82%. - **211.3 watts per square metre** - Top 19% of the PERC 450-500 W segment, against a median of 208.5. - **30 year performance warranty** - Top 20% of the PERC 450-500 W segment, against a median of 25 yrs. ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 8% of the PERC 450-500 W segment, against a median of -0.350. Ranked 12,345th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 21.13 % - **Voltage at Pmax (Vmp):** 41.80 V - **Current at Pmax (Imp):** 11.00 A - **Open-circuit voltage (Voc):** 49.60 V - **Short-circuit current (Isc):** 11.74 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.304 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2095 mm - **Width:** 1039 mm - **Thickness:** 40 mm - **Weight:** 24.5 kg - **Area:** 2.18 m2 - **Power density:** 211.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.60 % - **Output after 30 years:** 368 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9239 of 14005 | | Power density | 9238 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 7102 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Half-Cut + 9-Busbar Design Minimizes Losses** - The combination of half-cut cells and 9 busbars reduces series resistance and limits the impact of partial shading — when one half of the module is shaded, the other continues to operate without interruption. This translates into a measurable gain in annual energy yield for typical rooftop installations affected by shading obstacles. - **30-Year Linear Power Warranty** - The manufacturer provides a 30-year linear power output warranty — on par with leading Tier-1 series from Jinko and JA Solar. This is a compelling factor in LCOE calculations for both residential prosumer and commercial-scale installations. - **High Mechanical Strength and IP68 Rating** - The frame withstands snow loads of 5,400 Pa and wind loads of 2,400 Pa, exceeding the requirements for Polish climatic zones (normative snow load up to ~1.8 kN/m² in Zones I–III). The IP67/IP68-rated junction box ensures a watertight seal even under prolonged submersion. - **Anti-Soiling + Anti-Reflective Dual Coating** - The dual-layer glass coating improves light absorption at low angles of incidence (dawn, dusk, overcast conditions) and reduces soiling-related losses — particularly beneficial for installations where cleaning access is limited. - **Positive Power Tolerance 0/+5 W** - Every panel is guaranteed to deliver at least its rated nominal power, eliminating the risk of underperformance in system design and enabling precise inverter sizing without safety power buffers. ## Cons - **Series Discontinued** - The 144MB series has been discontinued. This limits the availability of replacement modules in the event of a failure or system expansion, and manufacturer service support for end-of-life product lines is typically phased out over time. CW Enerji has itself transitioned production to its newer G12R TOPCon series. - **PERC Technology — Advancing Obsolescence** - PERC is steadily losing market share to TOPCon: from 63% of global production in 2023 to approximately 43% in 2024, with a further projected decline at a CAGR of –10.8% through 2030. TOPCon offers a lower LID degradation rate and superior temperature coefficient performance — structural advantages that PERC cannot match. - **Efficiency Below Peer Comparables** - The series reaches a maximum efficiency of 21.36%, while the directly comparable DAH DHN-54R18/DG(BW) — the same 465 W power class — achieves 22.78% through N-type TOPCon and bifacial technology. The 1.42 percentage-point gap translates to approximately 6.6% less energy from an identical roof area, a significant drawback in space-constrained installations. ## About this series The **CW Enerji 144MB** series consists of monocrystalline PERC modules manufactured using the **Half-Cut** technology, which combines cut cells with a modern **9-Bus (9BB)** system. This combination minimizes resistive losses and increases resistance to partial shading - when one part of the panel is in shadow, the remaining part continues to operate without interruption. The glass with **self-cleaning and anti-reflective coatings** reduces the accumulation of dirt and improves light absorption, which translates into better performance in cloudy, early morning, and late afternoon conditions. The series is suitable for both residential and commercial installations - wherever reliable, long-term energy production is a priority. The robust design can withstand wind loads up to 2400 Pa and snow loads up to 5400 Pa, and the IP67/IP68 rated junction box ensures a watertight seal in any weather conditions. The positive power tolerance guarantees that each panel achieves at least the declared parameters. Compliance with IEC 61215, IEC 61730 standards, and PID, salt spray, and ammonia resistance certifications confirms the suitability of these modules in demanding environments. The manufacturer offers a **30-year performance warranty** and a 12-year product warranty. ## Notable figures - Efficiency of 21.1% matches the \*\*PERC 450-500W\*\* median - At 211.3 W/m² power density, roof space requirements are typical for \*\*PERC 450-500W\*\* panels - At -0.36%/°C, hot weather performance is typical for \*\*PERC 450-500W\*\* panels - In the top 66% for efficiency among all PERC panels ## Questions ### Is the CW Enerji 144MB series still available for purchase? The CW Enerji 144MB series has been discontinued. This means the manufacturer has ceased production, and availability is severely limited — it can only be found as remaining stock held by select distributors. If you require similar technical specifications, it is worth exploring newer CW Enerji series or comparable offerings from other PERC Half-Cut module manufacturers. ### What warranty is provided for CW Enerji 144MB photovoltaic panels? The manufacturer offers a 12-year product warranty covering material and workmanship defects, along with a 30-year performance warranty guaranteeing that the modules maintain a specified power output level over three decades of operation. This is one of the longest performance warranties available in the PERC module market. However, since the series has been discontinued, it is essential to confirm with your distributor whether the warranty remains honored before completing a purchase. ### What is Half-Cut technology with 9BB, and why is it advantageous in the 144MB series? Half-Cut means that each PERC cell is laser-cut in half, which reduces current intensity and lowers resistive losses — resulting in higher power output and improved tolerance to partial shading. Nine busbars (9BB) shorten the current path and reduce the risk of microcracks in the cells during transportation and long-term operation. Together, both technologies deliver measurably higher annual energy yield compared to older, conventional full-cell modules. ### What is the maximum power output of the CW Enerji 144MB panels, and does the manufacturer guarantee it will be met? The highest-rated model in the CW Enerji 144MB series delivers a peak power output of 465 Wp. The manufacturer applies a positive power tolerance, meaning every panel achieves at least the declared 465 W in flash testing — never less. This is particularly important during system design: a reliable energy balance must be built on guaranteed, not inflated, parameters. ### Can CW Enerji 144MB panels handle shading from a chimney or antenna? Yes. Half-Cut technology divides the panel into two independent electrical sections — when one section is shaded by, for example, a chimney, antenna, or ventilation batten, the other continues to operate without interruption. The nine busbars further limit the impact of damage to individual cells on the overall module performance. Additionally, the anti-reflective coated glass improves energy harvesting under diffuse light conditions at dawn and dusk. ### Are CW Enerji 144MB panels suitable for installation in harsh weather or coastal environments? Yes. The module structure withstands wind loads of up to 2400 Pa and snow loads of up to 5400 Pa, meeting the installation requirements for even mountainous and coastal locations. The IP67/IP68-rated junction box ensures a watertight seal under prolonged water exposure. Salt mist and ammonia resistance certifications confirm the suitability of these panels for industrial and coastal environments. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/CWT445-144HCMBPM-60f036b7b132.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +50 W, cooler, +3.9 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +35 W, cooler, +3.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +45 W, cooler, +3.6 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +40 W, cooler, +3.4 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +40 W, cooler, +3.4 pp | | [CW Enerji CWT420-144MB](https://comparepv.com/panel/cw-enerji-cwt420-144mb) | 420 W | -40 W, -1.8 pp | | [CW Enerji CWT425-144MB](https://comparepv.com/panel/cw-enerji-cwt425-144mb) | 425 W | -35 W, -1.6 pp | | [CW Enerji CWT430-144MB](https://comparepv.com/panel/cw-enerji-cwt430-144mb) | 430 W | -30 W, -1.4 pp | | [CW Enerji CWT435-144MB](https://comparepv.com/panel/cw-enerji-cwt435-144mb) | 435 W | -25 W, -1.1 pp | | [CW Enerji CWT440-144MB](https://comparepv.com/panel/cw-enerji-cwt440-144mb) | 440 W | -20 W, -0.9 pp | | [CW Enerji CWT445-144MB](https://comparepv.com/panel/cw-enerji-cwt445-144mb) | 445 W | -15 W, -0.7 pp | | [CW Enerji CWT450-144MB](https://comparepv.com/panel/cw-enerji-cwt450-144mb) | 450 W | -10 W, -0.4 pp | | [CW Enerji CWT455-144MB](https://comparepv.com/panel/cw-enerji-cwt455-144mb) | 455 W | -0.2 pp | | [CW Enerji CWT465-144MB](https://comparepv.com/panel/cw-enerji-cwt465-144mb) | 465 W | +0.2 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +130 W, cooler, +2.7 pp | --- Source: https://comparepv.com/panel/cw-enerji-cwt460-144mb Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.