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REC Alpha 390W Solar Panel 132 cell REC390AA

$528
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Specification

Rated Power Output 390 W
Voltage (VOC)48.6
Maximum String Voltage 1000V
Cell number
  • 132 cell
Cell TypeMonocrystalline
Rated Efficiency21.08 %
Connector TypeMC4
Backsheet Color
  • black
Frame Color
  • black
Dimensions LxWxH71.7 x 40 x 1.2 in
Weight45 lb
ManufacturerREC
Manufacturer Part #REC390AAPure
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty20/25 Years See warranty details
Delivery Time 5-7 business days

About product

REC390AA is a model that uses a number of technologies to bring durability and performance to the next level. This panel takes full advantage of the Passivated Emitter Rear Contact (PERC) technology that allows it to capture up to 12% more energy. All thanks to a reflective layer on the back. This design maximizes the number of photons absorbed by solar cells. 

The use of half-cut cell technology is an additional perk. The solar cells of REC390AA are half the size of those found in standard panels. Major advantages include reduced power consumption, extended life and enhanced efficiency in low-light conditions. At 21.08% efficiency, REC390AA offers surprising performance for its weight and size. Cell surface, back foil and frame are completely black, giving the model unrivaled aesthetics. REC provides a 20-year product warranty. Stable power output is also guaranteed — performance warranty will protect you during 25 years. 

  • 132 half-cut PERC cells
  • 390 W nameplate capacity
  • 21.08% efficiency
  • 1000 V DC maximum system voltage
  • MC4 connectors
  • 20 years of product and 25 years of performance warranty

Increased efficiency of up to 21.08 percent

REC390AA ensures maximum power production. The combination of PERC technology and a powerful antireflective coating results in 21.08 percent module efficiency. This is much greater than the average, resulting in significant extra savings over the years of production.

Improved efficiency at high temperatures

Greater energy as temperature rises is a mark of a good temperature coefficient. Your panel's efficiency will drop by just 0.26% for every 1.8°F increase over 77°F.

High quality standards

REC strict manufacturing standards include multiple tests to provide extreme quality assurance. The facilities are highly automated, allowing the company to maintain high standards and keep the level of warranty claims very low.

Low degradation for increased lifespan

The amount of power output loss experienced by these panels during the first year of operation will not exceed 2%. The average yearly power drop from the second to the 25th year will not surpass 0.25%. After 25 years, the module will still produce more than 92% of its initial output.

A panel that can handle hail, wind and snow

This module is weatherproof due to the 1.2" frame manufactured from anodized aluminum and a layer of safety tempered glass. The modules' front and rear sides can withstand loads of 7000 and 4000 Pa, respectively.

Outstanding all-black design

The panel features all-black design which looks great on any roof. The manufacturer ensures excellent cell color by special treatment and selection processes. REC engineers use thinner wires to connect the cells together, and at a distance the surface of the modules appears smooth and uninterrupted.

Size

71.7" x 40" x 1.2"

Weight

45 l

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FAQ

How much is shipping and how long is delivery?
Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.
What is the difference between low price panels and top price panels?
With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.
What are the dimensions of the panel?
Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.
How long is the warranty on the panel?
In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.
Which panels do you recommend for RV, marine?
We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.
Can this panel be used with a 12v system?
Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.
Can I pick up this panel from your fulfillment center to save on shipping?
Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.
How do I connect these panels?
To achieve the best system efficiency, panels should be connected in series to create higher voltage.
How many panels do I need?
This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.
Do you offer discounts?
We do offer discounts for orders of over 50 units. Please contact us for details.
How do I build a solar system?
Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.
How do solar panels compare?
Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.
Can I build a solar system by myself as a Do It Yourself project?
Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.
Can I connect and charge my solar panel battery directly with the solar panel?
We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.
Can I drill holes into the aluminum frame for mounting?
We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.
Do solar panels require maintenance? Can I wash my solar panel?
Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.
Will my panel produce power in an overcast condition?
While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.
Will my panels produce power if covered with snow?
Solar panels cannot produce electricity if covered with snow.
What is the best direction for a solar panel to face?
The best direction for a solar panel to face is the South