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A van roof with room for a panel, a battery bank waiting for its charge, a cabin running through a cloudy week: each is a moment when the panel’s figures matter. This guide explains solar panel price 100 watt: what the efficiency, size, weight and warranty figures on the listing mean, and how to read them before you buy. Read the watts first, then the efficiency, then the size and build, and finish with the warranty.
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The quick answer
A 100 watt panel is a panel the listing rates at 100 watts. The Renogy listing here states 2 panels of 100W, 200W in total, N-Type cells at 25% conversion efficiency, dimensions of 42.2 by 19.6 by 1.38 inches, a weight of 14.3 pounds, IP67 stated, and a 5-year material and workmanship warranty. Read the watts first, then the efficiency, then the size and weight, and finish with the warranty term.
Step 1: Read the watts first
Watts are the headline figure on a panel listing. The Renogy listing states 100W per panel and sells as 2 panels, with a total of 200W. The title lists the pair for 12V battery systems, for RV, marine, rooftop, farm, trailer, cabin, home and off-grid use. Compare watts to watts across listings, and read the rest of the figures before you decide. For small-space options, see the best 100 watt solar panels for a tiny house.
| Listing | Watts stated | Pack stated | System stated |
|---|---|---|---|
| Renogy 100W 2PCS | 100W each, 200W total | 2 panels | 12V battery systems |
Read the watts with care. The title states 200 watts for the pair, so the 200W figure is the pair total, not the figure for 1 panel. The spec table lists the size as 100W 2-Pack Panels and the number of items as 2, which matches the title. A 100W panel suits a small 12V system, and the pair suits a larger one, so read the watts figure against the loads you plan and the battery voltage the listing states.
Step 2: Read the efficiency figures
Efficiency figures tell you how much of the light the panel turns into power. The Renogy listing states N-Type cells at 25% conversion efficiency, with 16BB technology, and claims 20W more power output than standard 100 watt panels of the same design. The listing states the panel is 11% smaller and 8% lighter than its predecessor, with the same power output in a more compact design. The listing also states a low temperature coefficient of -0.29% per degree C, which reduces power loss in high temperatures. Read efficiency claims as the maker’s claims, and compare the efficiency figure to the watts figure on the same listing. For the size class, see 100W vs 200W portable solar panels.
The temperature coefficient tells you how the panel behaves as it heats up. The listing states a low temperature coefficient of -0.29% per degree C, which reduces power loss in high temperatures, and states the panel performs in summer months and in hot climates. A lower coefficient means less power loss as the panel heats, so read the coefficient the listing states.
Step 3: Check size, weight and build
Dimensions and weight decide where a panel fits and how it mounts. The Renogy listing states dimensions of 42.2 by 19.6 by 1.38 inches and a weight of 14.3 pounds. The listing states low-iron tempered glass and a corrosion-resistant aluminum frame, with IP67 stated, and states the panel is designed to endure snow, rain and heat. The listing states 16BB technology minimizes the risk of hot spots and hidden cracks, and states A+ grade N-Type cells. The listing states the compact design suits tight spaces, and names mini van life as a use. Read the build figures the listing states, and match the dimensions and weight to the space you have.
Step 4: Read the warranty
Warranty terms are stated on the listing. The Renogy listing states a 5-year material and workmanship warranty, which covers material and workmanship for the term the listing states. The listing states IP67, which is the only certification figure the listing states. A warranty term is a promise on paper, so read the term the listing states before you buy, and note when a listing states no term beyond the warranty.
Ways to use solar panel price 100 watt
- Match the watts to the system: 100W per panel, 200W in total, for 12V battery systems, for RV, marine, rooftop, farm, trailer, cabin, home and off-grid use.
- Match the efficiency to the roof space: 25% conversion efficiency with N-Type 16BB cells, 11% smaller and 8% lighter than its predecessor, with a low temperature coefficient of -0.29% per degree C.
- Match the size and weight to the mount: 42.2 by 19.6 by 1.38 inches at 14.3 pounds, with low-iron tempered glass and a corrosion-resistant aluminum frame, for tight spaces.
- Match the warranty to the plan: a 5-year material and workmanship warranty, with IP67 stated and no other certification stated.
FAQ: power away from the grid
What does 100 watts mean on a solar panel?
It is the headline power figure the listing states. The Renogy listing states 100W per panel and 200W for the pair of 2 panels. The spec table lists the size as 100W 2-Pack Panels and the number of items as 2.
What efficiency does a 100 watt panel have?
The Renogy listing states 25% conversion efficiency with N-Type 16BB cells, and claims 20W more power output than standard 100 watt panels of the same design. The listing states A+ grade N-Type cells.
How big is a 100 watt solar panel?
The Renogy listing states 42.2 by 19.6 by 1.38 inches and 14.3 pounds, and states the panel is 11% smaller and 8% lighter than its predecessor.
What warranty comes with a 100 watt solar panel?
The Renogy listing states a 5-year material and workmanship warranty. The listing states IP67, with no other certification stated. Read the warranty description the listing states.
Related solar guides
See the 100 watt solar panel specifications, the 200 watt solar panel specifications, the how much is a small solar panel and the best portable solar panels with a charge controller.
