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.

ASIN	B07GF5JY35
Amperage Capacity	41 Amps
Brand	Renogy
Brand Name	Renogy
Connector Type	MC4
Customer Reviews	4.6 out of 5 stars 5,881 Reviews
Efficiency	22%
Global Trade Identification Number	00816360028796
Included Components	1x100w solar panel
Included components	1x100w solar panel
Item Dimensions L x W x H	106.2L x 53.1W x 3.6H centimeters
Item Type Name	Monocrystalline PV Module Power Charger for RV Marine Rooftop Farm Battery and Other Off-Grid Applications, RNG-100D-SS
Item Weight	5.9 kg
Item weight	5.9 kg
Manufacturer	Renogy
Material	Monocrystalline,Aluminum,Tempered Glass,Tributyl Tin
Material Type	Monocrystalline,Aluminum,Tempered Glass,Tributyl Tin
Maximum Power	100 Watts
Maximum Voltage	12 Volts
Model Number	Renogy Solar Panels 100 Watt 12 Volt
Product dimensions	106.2L x 53.1W x 3.6H centimeters
UPC	816360028796
Unit Count	1 Count
Upper Temperature Rating	82 Degrees Fahrenheit

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