How many solar panels do I need for my home?

The number of panels depends on your household energy usage, roof size, and location. We help you calculate the exact requirements.

What is the lifespan of a solar panel system?

Most solar panels last 25–30 years with minimal maintenance, making them a long-term investment.

Do solar panels work on cloudy days?

Yes. While output is reduced, panels continue generating electricity even during overcast conditions.

What maintenance is required?

Solar panels are generally low-maintenance, requiring only occasional cleaning and periodic checks to ensure efficiency.

Can I install solar panels myself?

DIY solar panels are available for small projects, but professional installation is recommended for full home or business systems to ensure safety and maximum performance.

What is the solar panel?

A solar panel is a device that converts sunlight into usable electricity using photovoltaic (PV) cells. These cells capture solar energy and generate direct current (DC) power, which can be used directly or converted to alternating current (AC) through an inverter. Solar panels are widely used for homes, businesses, and off-grid applications to reduce electricity bills and reliance on traditional power sources.

How many solar panels are needed to fully power a house?

The number of panels needed depends on your home’s monthly electricity usage, your location’s sunlight hours, and the wattage of each solar panel. On average, a typical U.S. home requires 15 to 25 solar panels to be fully powered. Larger homes or homes with high-consumption appliances may require more. A licensed solar professional can calculate the exact number based on your kilowatt-hour (kWh) usage.

How are solar panels made?

Solar panels are made by assembling photovoltaic (PV) cells, which are typically manufactured from silicon. The process includes: Purifying silicon and forming it into ingots. Cutting the silicon wafers into thin slices. Treating wafers with conductive materials to create electric fields. Connecting PV cells with wiring and placing them in a protective sheet. Encapsulating the cells between tempered glass and a durable backing.This creates a weather-resistant, long-lasting panel capable of generating solar power.

How many watts is a solar panel?

Most residential solar panels range between 350 watts and 450 watts per panel, depending on the brand, cell efficiency, and technology. Commercial panels can reach 500+ watts. The watt rating indicates how much power the panel can produce under ideal sunlight conditions.

Solar Panels

About Solar Panels

Shop the full selection of solar panels at PES Supply, featuring monocrystalline, bifacial, TOPCon, and PERC modules from top manufacturers including Silfab, SEG Solar, Canadian Solar, Q CELLS, Mission Solar, Hyundai, Trina, REC, Aptos, and Thornova. Whether you are building a residential rooftop array, a commercial ground-mount system, or an off-grid cabin setup, we stock panels ranging from 330W to 700W+ to match any project size and budget.Every solar panel we sell is UL 1703 certified and backed by the full manufacturer warranty, including 12-year product coverage and 25-year linear performance guarantees. As a nationwide distributor with 50,000+ SKUs across 169 authorized brands, PES Supply offers trade pricing, expert technical support, and bulk pallet ordering for contractors and EPCs. BABA-compliant modules are available for federally funded projects. Standard delivery is 7–10 business days nationwide.Our team can help you select the right panel wattage, cell type, and frame configuration for your specific installation. Need panels for a large commercial project? Request a bulk quote for pallet and container pricing.

Solar Panels

Inverters

Storage solutions

Charge controllers

Solar Equipment

Racking

Accessories

Solar Panels

Inverters

Storage solutions

Charge controllers

Solar Equipment

Racking

Accessories

Top Rated

Mission Solar MSE430SX9Z 430W Mono PERC Solar Panel

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Mission Solar MSE430SX9Z 430W Mono PERC Solar Panel

SKU: PES-SPS-SPL-0027

MPN NO

MSE430SX9Z

Vendor:
Mission Solar

No reviews

Regular price $196.81 USD

Regular price ~~$231.54 USD~~ Sale price $196.81 USD
Unit price per

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Top Rated

Bluesun 370W Black ON Black 120 HALF-CELL MONO Solar Panel - BSM370M-60HPH

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Bluesun 370W Black ON Black 120 HALF-CELL MONO Solar Panel - BSM370M-60HPH

SKU: PES-SPS-SPL-0135

MPN NO

BSM370M-60HPH

Wattage

370

Vendor:
Bluesun Solar

No reviews

Regular price $249.00 USD
$0.67/watt

Regular price Sale price $249.00 USD
Unit price per

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Top Rated

Talesun TM7G54M-450 450W Bifacial Solar Panel

Talesun TM7G54M-450 450W Bifacial Solar Panel

SKU: PES-SPS-SPL-0185

MPN NO

TM7G54M-450

Vendor:
Talesun

No reviews

Regular price $185.63 USD

Regular price Sale price $185.63 USD
Unit price per
Top Rated

Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel

Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel

SKU: PES-SPS-SPL-0175

MPN NO

DNA-120-BF10-440W

Wattage

440

Vendor:
Aptos Solar

No reviews

Regular price $185.92 USD
$0.42/watt

Regular price Sale price $185.92 USD
Unit price per
Top Rated

Mission Solar MSE410HT0B 410W Black/Black Solar Panel

Mission Solar MSE410HT0B 410W Black/Black Solar Panel

SKU: PES-SPS-SPL-0144

MPN NO

MSE410HT0B

Wattage

410

Vendor:
Mission Solar

No reviews

Regular price $202.75 USD
$0.49/watt

Regular price Sale price $202.75 USD
Unit price per
Top Rated

Znshine 405W Black ON Black 108 HALF-CELL MONO Solar Panel - ZXM7-SH108-405/M

Znshine 405W Black ON Black 108 HALF-CELL MONO Solar Panel - ZXM7-SH108-405/M

SKU: PES-SPS-SPL-0105

MPN NO

ZXM7-SH108-405/M

Wattage

405

Vendor:
ZNShine

No reviews

Regular price $147.61 USD
$0.36/watt

Regular price Sale price $147.61 USD
Unit price per
Top Rated

Jinko Eagle 72 G2 410W Solar Panel - JKM410M-72HL-V

Jinko Eagle 72 G2 410W Solar Panel - JKM410M-72HL-V

SKU: PES-SPS-SPL-0038

MPN NO

JKM410M-72HL-V

Wattage

410

Vendor:
Jinko Solar

No reviews

Regular price $279.44 USD
$1.02/watt

Regular price Sale price $279.44 USD
Unit price per
Top Rated

Thornova Solar TS-BBT54(440) 440W Bifacial Solar Panel

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Thornova Solar TS-BBT54(440) 440W Bifacial Solar Panel

SKU: PES-SPS-SPL-0190

MPN NO

TS-BBT54(440)

Vendor:
Thornova Solar

No reviews

Regular price $158.30 USD

Regular price Sale price $158.30 USD
Unit price per

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Top Rated

VSUN 410-144BMH-DG 410W Bifacial Solar Panel

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VSUN 410-144BMH-DG 410W Bifacial Solar Panel

SKU: PES-SPS-SPL-0183

MPN NO

410-144BMH-DG

Vendor:
VSUN

No reviews

Regular price $149.69 USD

Regular price Sale price $149.69 USD
Unit price per

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Top Rated

Hyundai HiN-T435NF(BK) 435W Solar Panel

Hyundai HiN-T435NF(BK) 435W Solar Panel

SKU: PES-SPS-SPL-0168

MPN NO

HiN-T435NF(BK)

Wattage

435

Vendor:
Hyundai Energy Solutions

No reviews

Regular price $203.97 USD
$0.47/watt

Regular price Sale price $203.97 USD
Unit price per
Top Rated

Trina TSM-410-NE09RC.05 410W Bifacial Solar Panel

Trina TSM-410-NE09RC.05 410W Bifacial Solar Panel

SKU: PES-SPS-SPL-0170

MPN NO

TSM-410-NE09RC.05

Vendor:
Trina Solar

No reviews

Regular price $151.20 USD

Regular price Sale price $151.20 USD
Unit price per
Top Rated

Aptos DNA-108-BF10-410W 410W Bifacial Solar Panel

Aptos DNA-108-BF10-410W 410W Bifacial Solar Panel

SKU: PES-SPS-SPL-0138

MPN NO

DNA-108-BF10-410W

Wattage

410

Vendor:
Aptos

No reviews

Regular price $169.14 USD
$0.41/watt

Regular price Sale price $169.14 USD
Unit price per
Top Rated

Solaria POWERXT-400R-PM 400W Black on Black Solar Panel

Solaria POWERXT-400R-PM 400W Black on Black Solar Panel

SKU: PES-SPS-SPL-0109

MPN NO

POWERXT-400R-PM

Wattage

400

Vendor:
Solaria

No reviews

Regular price $476.75 USD
$1.19/watt

Regular price Sale price $476.75 USD
Unit price per
Top Rated

Canadian Solar CS3N-395MS 395W Solar Panel

Sale

Canadian Solar CS3N-395MS 395W Solar Panel

SKU: PES-SPS-SPL-0102

MPN NO

CS3N-395MS, F23

Wattage

395

Vendor:
Canadian Solar

No reviews

Regular price $178.14 USD
$0.45/watt

Regular price ~~$209.58 USD~~ Sale price $178.14 USD
Unit price per

Sale
Top Rated

Canadian Solar CS3N-395MS-BLK 395W HiKu Black Solar Panel

Sale

Canadian Solar CS3N-395MS-BLK 395W HiKu Black Solar Panel

SKU: PES-SPS-SPL-0101

MPN NO

CS3N-395MS-BLK

Wattage

395

Vendor:
Canadian Solar

No reviews

Regular price $178.14 USD
$0.45/watt

Regular price ~~$209.58 USD~~ Sale price $178.14 USD
Unit price per

Sale
Top Rated

Hyundai HiS-S400YH(BK) 400W Solar Panel

Hyundai HiS-S400YH(BK) 400W Solar Panel

SKU: PES-SPS-SPL-0098

MPN NO

HiS-S400YH(BK)

Wattage

400

Vendor:
Hyundai Energy Solutions

No reviews

Regular price $129.34 USD
$0.32/watt

Regular price Sale price $129.34 USD
Unit price per
Top Rated

ZNShine ZXM6-NH120-365-M 365W Solar Panel

ZNShine ZXM6-NH120-365-M 365W Solar Panel

SKU: PES-SPS-SPL-0077

MPN NO

ZXM6-NH120-365-M

Wattage

350

Vendor:
Znshine Solar

No reviews

Regular price $215.47 USD
$0.59/watt

Regular price Sale price $215.47 USD
Unit price per
Top Rated

Aptos Bifacial Solar Panel - DNA-120-BF26-370W

Aptos Bifacial Solar Panel - DNA-120-BF26-370W

SKU: PES-SPS-SPL-0070

MPN NO

DNA-120-BF26-370W

Wattage

370

Vendor:
Aptos

No reviews

Regular price $519.55 USD
$1.5/watt

Regular price Sale price $519.55 USD
Unit price per