SUNPOWER X21-345-E-AC Solar Panel 345W 21.5 41.2 X61.3 X1.8 43LBS

( Brand: Sunpower ), ( Manufacturer Part Number: X21-345-E-AC ), ( Current Output: 10 A Or Less ), ( System Configuration: Hybrid ), ( Solar Technology: Monocrystalline ), ( Power Source: Solar ), ( Wattage: 300-399 W ), ( Item Length: 61.2 ), ( Current Type: Ac ), ( Voltage: 68v ), ( Connector Type: Mc4 ), ( Features: All Daylight Conditions, Corrosion Resistant, Maintenance Free, Monocrystalline, Smart Module, Tabbed Cell Connection ), ( Protection Properties: Diode Protected ), ( Cell Quantity: 96 ), ( Pliability: Rigid ), ( Inverter Technology: Microinverter ), ( Color: Black ), ( Current Rating: 6.01-6.5 A ), ( Material: Reinforced Glass ), ( Type: Solar Panel ), ( Recommended Environment: Outdoor ), ( Charging Mode: Mppt ), ( Resistance Properties: Abrasion Resistant, Antimicrobial Resistant, Chemical Resistant, Childproof, Corrosion Resistant, Dustproof, Dust Resistant, Fade Resistant, Waterproof ), ( Country/region Of Manufacture: United States ), ( Application: Agriculture/farming, Aquaculture, Automotive, Back-up Power, Camping/hiking, Commercial, Electronics, Home/garden, Irrigation, Marine ), ( Recreational Vehicle: Rv, Shed ), ( Power: 301-350 W ), ( Product Line: Sunpower X-series )

Review SUNPOWER New 345w Solar Panel 21.5% 41.2 Inch X1.8 43lbs Each

The SunPower X21-345-E-AC is a high-performance, residential solar panel produced by SunPower, a leading solar technology company known for its maximum power output and efficiency. This specific model boasts an impressive power capacity of 345 watts, making it an excellent choice for homeowners seeking to maximize their solar energy generation.

Measuring 21.5 inches in width, 41.2 inches in length, and 0.613 inches in thickness, this solar panel is relatively compact in size compared to other panels in its power class. Despite its modest dimensions, it weighs a substantial 43 pounds, underscoring its robust and durable construction.

SunPower's X-Series solar panels, including the X21-345-E-AC, are renowned for their superior efficiency. Boasting an impressive Maximum System Efficiency of 22.8%, this panel converts a higher percentage of sunlight into usable electricity than most conventional panels. As a result, it can generate more power per square foot, allowing you to minimize your installation space while maximizing your energy production.

This panel's advanced technology includes SunPower's Maxeon 3 solar cells, which are manufactured using a unique process that combines silicon and copper to create a more efficient and durable design. The cells are also connected using SunPower's TwinMx6 cell architecture, which reduces electrical losses and increases power output.

The X21-345-E-AC is also equipped with SunPower's Maxeon 3 solar panels' AC Bypass Diode Technology. This feature ensures that if one cell or even an entire string of cells is shaded, the rest of the panel continues to function at maximum efficiency, minimizing power loss and maximizing energy production.

Furthermore, this panel is SunPower's first panel with a built-in microinverter, making it a "panel-level" microinverter system. This design eliminates the need for additional external microinverters or power optimizers, simplifying the installation process and reducing costs.

The SunPower X21-345-E-AC solar panel is also aesthetically pleasing, featuring a sleek black design that blends seamlessly with most roof types. It is compatible with both roofs with traditional racking systems and SunPower's proprietary SolarPanel Mounting System (SPR-310F), allowing for flexibility in installation options.

In summary, the SunPower X21-345-E-AC is a high-performance, 345-watt solar panel that offers superior efficiency, durability, and convenience. Its advanced technology, compact size, and built-in microinverter make it an excellent choice for homeowners seeking to maximize their solar energy generation while minimizing installation space and costs.

Sunpower X21-345-E-AC 345W Solar Panel: A Detailed Analysis

The Sunpower X21-345-E-AC is a 345-watt solar panel from Sunpower, a leading solar technology company. In this analysis, we will discuss the key features, advantages, and disadvantages of this solar panel to help you make an informed decision.

1. Maximum Power: The Sunpower X21-345-E-AC has a maximum power output of 345 watts, making it an efficient choice for those seeking high power output.

2. Size and Weight: With dimensions of 21.5 inches by 41.2 inches and a weight of 43 lbs, this panel is relatively large and heavy compared to other solar panels in its class.

3. Efficiency: Sunpower's Maxeon 3 solar cells offer an efficiency rating of up to 22.8%, making this panel one of the most efficient solar panels on the market.

4. Aesthetics: The sleek design and black frame give this solar panel a modern and attractive appearance.

5. Microinverters: Each Sunpower X21-345-E-AC panel comes with Sunpower's Maxeon 2 microinverters, which enable each panel to operate independently and optimize energy production.

1. High Efficiency: Sunpower's Maxeon 3 technology delivers higher efficiency compared to most solar panels, resulting in more energy production per square foot.

2. Maximum Power Point Tracking: The integrated Maxeon 2 microinverters enable each panel to track the maximum power point, ensuring optimal energy production throughout the day.

3. Durability: Sunpower solar panels are known for their durability and can withstand harsh weather conditions, including snow, wind, and extreme temperatures.

4. Warranty: Sunpower offers a 25-year product and performance warranty, providing peace of mind for homeowners.

5. Easy Installation: The integrated microinverters simplify the installation process as there's no need for complex wiring and string inverters.

1. Cost: Sunpower solar panels are more expensive than most solar panels due to their high efficiency and advanced technology.

2. Size and Weight: The large size and weight of the panel may require additional structural support during installation.

3. Limited Availability: Sunpower solar panels are not as widely available as some other brands, making it essential to check local availability before making a purchase.

The Sunpower X21-345-E-AC 345W solar panel offers several advantages, including high efficiency, maximum power point tracking, durability, and ease of installation. However, its high cost, size, and weight may be disadvantages for some homeowners. Ultimately, if you prioritize high energy production and the peace of mind that comes with a reliable, durable, and efficient solar panel, the Sunpower X21-345-E-AC is an excellent choice.

If you're looking for a high-performance solar panel and are willing to pay a premium for advanced technology, the Sunpower X21-345-E-AC is a solid investment. Consider checking local availability and assessing the structural requirements before making a purchase. If the cost is a concern, you may want to explore other solar panel options with lower price points while still maintaining a good balance of efficiency, durability, and affordability.

Details:

This is a brand new never used SunPower SPR-X21-345-E-AC solar panel with En phase IQ7XS micro-inverter installed. Great for any DIY solar project or RV. If you do not plan to use the micro-inverter for a grid-tie application 240VAC, I can remove and discount price by $50 so $100 each. These are extra stock from a project and pickup or delivery for fee in the Southern MA area only.

These have been tested with voltmeter and found to within 1% of Vic voltage so they are good go. This panel without the Grid-Tie micro-inverter is same as SPR-X21-345 model just with no on back pictures show. Message me with any questions and I can send you the spec sheet if needed.

part #: x21345e price

• $397.50

specifications solarparley:

• brand: Sunpower
• mpn: X21-345-e-ac
• current output: 10 A Or Less
• system configuration: Hybrid
• solar technology: Monocrystalline
• power source: Solar
• wattage: 300-399 W
• item length: 61.2
• current type: Ac
• voltage: 68v
• connector type: Mc4
• features: All Daylight Conditions, Corrosion Resistant, Maintenance Free, Monocrystalline, Smart Module, Tabbed Cell Connection
• protection properties: Diode Protected
• cell quantity: 96
• pliability: Rigid
• inverter technology: Microinverter
• color: Black
• current rating: 6.01-6.5 A
• material: Reinforced Glass
• type: Solar Panel
• recommended environment: Outdoor
• charging mode: Mppt
• resistance properties: Abrasion Resistant, Antimicrobial Resistant, Chemical Resistant, Childproof, Corrosion Resistant, Dustproof, Dust Resistant, Fade Resistant, Waterproof
• country/region of manufacture: United States
• application: Agriculture/farming, Aquaculture, Automotive, Back-up Power, Camping/hiking, Commercial, Electronics, Home/garden, Irrigation, Marine
• recreational vehicle: Rv, Shed
• power: 301-350 W
• product line: Sunpower X-series

seller solarparley:

• rating: 99.4%
• city: East Bridgewater, Massachusetts
• # reviews: 2336

offer solarparley:

• availability: In Stock
• sold: 0
• quantity: 10
• started: March 8, 2025
• options: Seller-arranged-local-pickup

general solarparley:

• Alternative Energy Supplies > Solar Power Supplies > Solar Panels Kits
• condition: New

payments solarparley:

• wallet: Google-pay
• credit card: Discover
• other

shipping solarparley:

returns solarparley:

• policy: No Returns

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