--- title: "Maxeon SPR-P7-455-BLK 455W Solar Panel - Specs & Review | ComparePV" description: "Maxeon SPR-P7-455-BLK 455W solar panel. Specs: 22.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/maxeon-spr-p7-455-blk" updated: 2026-09-11 --- # Maxeon SPR-P7-455-BLK Middle of its segment, heavy for its output 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Maxeon - **Model:** SPR-P7-455-BLK - **Series:** Performance 7 - **Rated power:** 455 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 465 W | Typical | | | Module efficiency | 22.40% | 22.52% | Typical | 4,774 | | Power density | 224.2 | 225.2 | Typical | 4,767 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.8 kg | 24.0 kg | Weak - bottom 21% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.40% | 22.52% | Typical | 4,774 | | Power density | 224.2 | 225.2 | Typical | 4,767 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 54.5 | 52.2 | Weak - bottom 21% | 8,839 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **54.5 kg per kWp** - Bottom 21% of the TOPCon 450-500 W segment, against a median of 52.2. - **Best for:** Residential, commercial, shaded-installations and cold-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.40 % - **Voltage at Pmax (Vmp):** 35.70 V - **Current at Pmax (Imp):** 12.75 A - **Open-circuit voltage (Voc):** 42.13 V - **Short-circuit current (Isc):** 13.45 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Bifacial:** yes ### Physical - **Length:** 1790 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.8 kg - **Area:** 2.03 m2 - **Power density:** 224.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4774 of 14005 | | Power density | 4767 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 8839 of 14005 | | Warranty | 21 of 14005 | ## Pros - **TOPCon cells in shingled design** - Performance 7 uses one-third-cut TOPCon cells joined with shingled interconnects, eliminating conventional busbars and reducing microcrack risk from thermal cycling. This improves light capture compared to standard modules. - **22.7% efficiency - segment leader** - Peak efficiency of 22.7% outperforms all peer comparables: Boviet VEGA (21.3%), Jinko JS-PERC (21.7%), and Shinson S-Max (21.48%). At the same 555 Wp max power, this means a smaller mounting area per kW. - **30-year full warranty (product+power+service)** - Maxeon offers a single 30-year Product, Power, and Service warranty, marketed as 'best-in-class' for the segment. Maximum annual power degradation is 0.4%, with first-year warranted output of at least 99%. - **Bifacial, shade-tolerant module** - The bifacial design combined with parallel shingled-cell circuitry lets panels keep generating power even under partial shading, boosting annual yield on limited roof area. - **Cradle to Cradle certification** - Performance 7 is among the first series on the market to earn Cradle to Cradle certification, confirming a lower manufacturing footprint - a relevant differentiator in ESG-driven tenders. ## Cons - **Significant price premium** - Maxeon panels are priced at roughly $1.05-1.75/W, compared to $0.45-1.00/W for comparable Jinko Solar TOPCon modules - up to twice as expensive at similar efficiency (21.7% vs 22.7%). For price-sensitive installations, the premium may not be economically justified. - **Manufacturer financial and bankability risk** - In April 2026 Maxeon Solar Technologies filed for judicial management in Singapore following financial trouble dating back to 2024 (U.S. CBP detention of its products, bankruptcy of former partner SunPower Corporation, and suspension of quarterly reporting since Q1 2025). Despite formal Tier-1 status, this raises questions about the fulfillment of the 30-year service warranty. ## About this series The Maxeon Performance 7 series redefines performance standards through the use of innovative **TOPCon shingled cell technology**, which effectively eliminates common weak points of traditional modules. This design is based on unique, flexible conductive connections, ensuring **minimization of the risk of micro-cracks** resulting from variable thermal cycles and mechanical loads. For the investor, this means trouble-free operation for decades, even in the demanding Polish climate characterized by large temperature fluctuations. A key differentiator of this line is above-average **shade resistance** - thanks to the parallel circuit layout, the panels generate energy even when part of their surface is temporarily obstructed, which directly translates into higher annual yields. This solution is dedicated to owners of single-family homes and commercial buildings who want to **maximize yields from limited roof areas** while maintaining elegant aesthetics. Unlike standard products from the competition, Performance 7 offers exceptional stability of parameters in low-light conditions, protecting capital against premature power degradation. By choosing these modules, you gain the certainty of investing in advanced engineering that realistically shortens the payback period of a photovoltaic installation through higher conversion efficiency of diffused light. ## Notable figures - Efficiency of 22.4% matches the \*\*TOPCon 450-500W\*\* median - At 224.2 W/m² power density, roof space requirements are typical for \*\*TOPCon 450-500W\*\* panels - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - Ranked #4774 out of 14005 panels for efficiency in the database ## Questions ### What is the shingled TOPCon cell technology in Maxeon Performance 7 panels and how does it differ from standard modules? Shingled cells are thin strips of N-type TOPCon cells layered like roof shingles with no metal busbars on the front surface. In the Maxeon Performance 7, this design delivers module efficiency above 22%, significantly reduces microcracks caused by thermal cycling, and provides better shade tolerance compared to standard PERC or HJT modules. The absence of busbars also eliminates one of the most common failure points in conventional panels. ### What warranty does the Maxeon Performance 7 solar panel come with? The Maxeon Performance 7 includes a 30-year product warranty covering defects and workmanship, and a 30-year power warranty. In year one the panel retains at least 99% of its rated power, with annual degradation capped at 0.4%. After 30 years the module still guarantees at least 88.6% of nameplate power. This is one of the most comprehensive solar panel warranties currently available on the market. ### Is the Maxeon Performance 7 a bifacial panel — what does that mean for a rooftop installation? Yes, the Performance 7 is a bifacial module with a glass-glass construction. The rear glass captures reflected and diffuse light from surfaces such as a white roofing membrane, adding a few percentage points to annual energy yield in typical rooftop installations. The glass-glass design also provides superior resistance to moisture ingress, UV degradation, and mechanical stress compared to standard glass-backsheet modules. ### How does the Maxeon Performance 7 handle partial shading from a chimney or dormer window? Exceptionally well — this is one of the series' main selling points. The parallel-circuit architecture of the shingled cell layout means shading one section of the panel does not significantly reduce output from the rest of the module, unlike conventional full-cell designs where a single shaded row can collapse output across an entire string. Installations on complex residential rooftops with chimneys, skylights, or dormers retain far more energy yield with Performance 7. ### How much power does the Maxeon Performance 7 lose over 25–30 years of operation? Maxeon guarantees a maximum annual power degradation of 0.4% for the Performance 7. After 30 years the panel retains at least 88.6% of its original nameplate power. By comparison, standard PERC modules typically degrade at 0.55–0.70% per year, retaining only 80–85% after the same period. This difference has a direct impact on lifetime energy output and LCOE, effectively shortening the real payback period of the system. ### Are Maxeon Performance 7 panels rated up to 555 W suitable for a single-family home installation? The commercial variant SPR-P7-COM-S, rated 535–555 W, is primarily aimed at larger rooftop systems on commercial buildings or sizeable residential properties. For standard single-family homes, Maxeon also offers lower-wattage Performance 7 variants in the 440–510 W range specifically designed for the residential segment. Across the entire series the design philosophy prioritizes space-constrained roofs where maximum efficiency per square meter and clean aesthetics matter most. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/SunPowerPerformance7BLK_SPR-P7-435-460-5a9b9fe5a182.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +40 W, lighter, +2.4 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +35 W, lighter, +2.1 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +45 W, cooler, +2.1 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +45 W, lighter, +2.1 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +45 W, lighter, +2.1 pp | | [Maxeon SPR-P7-435-BLK](https://comparepv.com/panel/maxeon-spr-p7-435-blk) | 435 W | -20 W, -1.0 pp | | [Maxeon SPR-P7-440-BLK](https://comparepv.com/panel/maxeon-spr-p7-440-blk) | 440 W | -15 W, -0.7 pp | | [Maxeon SPR-P7-445-BLK](https://comparepv.com/panel/maxeon-spr-p7-445-blk) | 445 W | -10 W, -0.5 pp | | [Maxeon SPR-P7-450-BLK](https://comparepv.com/panel/maxeon-spr-p7-450-blk) | 450 W | Very close match | | [Maxeon SPR-P7-460-BLK](https://comparepv.com/panel/maxeon-spr-p7-460-blk) | 460 W | +0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +55 W, cooler, +2.6 pp | --- Source: https://comparepv.com/panel/maxeon-spr-p7-455-blk 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.