What does off-grid and on-grid mean ?

On-grid simply means solar power equipment (array or solar panel) is connected to the electrical grid, while off-grid refers to systems that are not connected to the grid and therefore store the generated power for later use.

Why is my solar panel under producing ?

Solar panel performance may be hindered for a number of reasons. Most commonly environmental conditions such as indirect sunlight, temperature rise, cloudy sky, and dirt and stain build up on the top glass will cause a reduced power output.

How should I connect solar panels in my electrical circuit (series vs parallel)

Connecting solar panels in series will have the effect of adding up their operating voltage output, while system current output will be the same as that for one panel. While, connecting solar panels in parallel will have a different effect;

How many solar panels do I need ?

To determine solar panel needs, calculate the power load (Watts) and capacity (Watt-hours). Size the battery bank based on minimum capacity, then adjust panel quantity or power input accordingly.

What is the meaning of 12V in the product title，Why is this value different from the voltage of the solar panel？

When you open the product page, you will see a title like "xxx Watt 12 Volt Solar Panel". The "12V" here does not refer to the voltage of this solar panel (VOC or VMP), but to the fact that one xxxW solar panel is suitable for 12V system.

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Description

☀️ Power your future with sleek, smart solar innovation!

PLUG PLAY READY - 20 pre-drilled mounting holes ensure lightning-fast installation compatible with all Renogy mounts—get solar up and running in no time.
NEXT GEN SOLAR TECH - 22% cell efficiency with 9 bus-bars and half-cell design maximizes energy capture and minimizes loss.
FEATHERWEIGHT CHAMPION - Weighing just 14.1 lbs, it’s 8-10% lighter and more compact than traditional panels—perfect for sleek, space-conscious setups.
POWER PACKED EFFICIENCY - 100W monocrystalline panel delivers up to 500Wh daily—fuel your off-grid lifestyle effortlessly.
BUILT TO BRAVE THE ELEMENTS - IP65-rated with tempered glass and corrosion-resistant frame—rain, snow, or shine, this panel keeps powering on.

The Renogy 100W 12V Monocrystalline Solar Panel is a compact, lightweight, and highly efficient energy solution featuring advanced 9 bus-bar and half-cell technology for 22% efficiency. Built with durable IP65-rated materials, it withstands harsh weather while delivering up to 500Wh daily. Designed for quick installation with 20 pre-drilled holes, it’s ideal for off-grid professionals seeking reliable, long-lasting solar power backed by a 10-year workmanship warranty and 25-year performance guarantee.

Specifications

Color	2-Pack 100W
Size	100W 2-Pack Panels
Style	Solar Panel
connector-type	Solar Connector
Shape	Rectangular
Material Type	Tributyltin,Tempered Glass,Aluminium,Polyamide,Ethylene Vinyl Acetate,Monocrystalline Silicon
Number of Items	2
Power Source	Solar Powered
Features	Compact and Reliable, Superior Quality and Material, Advanced Solar Cell Tech and Panel Structure, Built to Last, Fast and Easy Installation, Proven Durable Quality
Wattage	100 watts
Included Components	2x100w solar panels
Batteries Included?	No
Brand	Renogy
Manufacturer	Renogy
Item model number	Renogy 2PCS Solar Panels
Product Dimensions	106.17 x 53.09 x 3.56 cm; 6.49 kg
ASIN	B07JXYTFF7

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