- By: Alina Samarskaya
- Solar PV panels
- Updated: Jun 23, 2026
Solar Panel Tariffs in 2026: How Much Will It Cost to Go Solar Now?
390 watt solar panels are out of stock
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ZNShine Solar 440W Solar Panel 108 Cell N-Type Bifacial All-Black ZXM7-UHLDD108-440 Clearance
Talesun Solar 415W Solar Panel 108 Cell PERC Bifacial All-Black TP7G54M(H)-415-BB Clearance
Pickup on Tue, Aug 4
JA Solar 405W Solar Panel 108 Cells PERC All-Black JAM54S31-405/MR Clearance
Pickup on Wed, Jul 29
Delivery on Jul 29 – Aug 03
Peimar 450W Solar Panel 120 Cell PERC All-Black DR10H450MB Clearance
Pickup on Tue, Aug 4
Delivery on Jul 29 – Aug 03
Trina 415W Solar Panel 144 Cell PERC Bifacial All-Black TSM-415NE09RC.05 Clearance
Pickup on Wed, Jul 29
Delivery on Jul 29 – Aug 03
JA Solar 440W Solar Panel 108 Cell N-Type Bifacial JA-JAM54-D41-440MB Clearance
Pickup on Wed, Jul 29
Delivery on Jul 29 – Aug 03
JA Solar 445W Solar Panel 156 Cell PERC JAM78S10-445/MR Clearance
Delivery on Jul 30 – Aug 04
Phono Solar 440W Solar Panel 108 Cell PERC Bifacial PS440M8GFH-18/VNHB Clearance
Delivery on Aug 04–07
Ready to ship on Aug 03–06
Regitec 415W Solar Panel 108 Cell PERC RMH54/415B1 Wholesale 36 panels per pallet
Ready to ship on Aug 03–06
Ready to ship on Aug 03–06
SolarSpace 400W Solar Panel 108 Cells PERC SS8-54HSB-400-W Wholesale 36 panels per pallet
Ready to ship on Aug 03–06
SolarSpace 400W Solar Panel 108 Cells PERC All-Black SS8-54HSB-400-M Wholesale 36 panels per pallet
Ready to ship on Aug 03–06
Ready to ship on Aug 03–06
Ready to ship on Jul 30 – Aug 04
Ready to ship on Aug 05–10
Ready to ship on Aug 04–07
Ready to ship on Aug 04–07
Ready to ship on Aug 04–07
Regitec 415W Solar Panel 108 Cell RMH54/415B1 Commercial 936 panels per Container (Truckload)
Ready to ship on Aug 03–06
Ready to ship on Aug 03–06
Ready to ship on Aug 03–06
Ready to ship on Aug 03–06
The 390 watt solar panels presented on our website are a full-fledged alternative to central power plants. It is believed that the efficiency of such an autonomous solar system depends on the intensity of sunlight. The better the illumination, the more power your system will generate. Therefore, weather and climatic conditions are equally significant factors affecting productivity.
However, the innovative technologies used in these solar panels allow you to achieve superior performance in low light conditions in the morning, evening, and on cloudy days, increasing the module's power output and the overall output of the solar system.
The main advantages of 390 watt solar panels are:
The average 390 watt solar panel price usually does not exceed $300, fully paying for itself in the first couple of years of use (if you sell surplus energy through the Net Metering program, it will happen even faster). However, since solar technology is constantly evolving, it can be assumed that panel prices will decline in the future. This means that the payback of these devices will come earlier.
The standard size of 390 watt solar panels is 72 cells, and its dimensions are compact enough to set an installation in a small area - for example, on the roof.
You can buy 390w solar panels from leading manufacturers at the best price on our website. You can also get advice from our experts about your solar system design.
Solar Panel Tariffs in 2026: How Much Will It Cost to Go Solar Now?
How to Store Electricity from Solar Panels for 24/7 Home Power
Solar Panel Payback Period: How Long Until Solar Pays for Itself in 2026?
Government Incentives for Solar Panels: What Actually Pays Off in 2026?
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