← all tools

Cost per watt, with the honest wattage.

Dollars per watt is the value number, but two things trip buyers up: panels rarely hit their rated output, and a cheap thin-film panel needs twice the area of an efficient one. So this ranks by cost per watt and shows the efficiency, weight and weather rating right beside it. Buy the cheapest watt that also fits your space.

Prices reviewed 31 July 2026 . Solar panel prices shift with sales and season, so check the live listing before buying.

Pairing a panel with a battery? See the power station value rankings.

Search
Brand
Wattage
Filter
Max price
Currency

Panel Rated W Efficiency Cell Weight Weather Price $/W
BougeRV Yuma 200 CIGSBest value200 W16.3%CIGS8.4 lbIP68$190$0.95Check price
DOKIO 110W110 W21.0%Mono6.0 lbIP65$110$1Check price
DOKIO 220W220 W21.0%Mono12.0 lbIP65$240$1.09Check price
Nekteck 100W100 W21.0%Mono5.1 lbIP64$120$1.2Check price
VTOMAN 220W220 W22.0%Mono21.0 lbIP67$280$1.27Check price
BougeRV 100W100 W22.0%Mono4.2 lbIP67$130$1.3Check price
BougeRV 200W Mono200 W22.0%Mono22.0 lbIP67$260$1.3Check price
Rockpals 100W100 W21.5%Mono8.4 lbIP65$130$1.3Check price
BougeRV 400W400 W23.0%Mono42.0 lbIP68$560$1.4Check price
ALLPOWERS 100W100 W23.0%Mono8.8 lbIP66$140$1.4Check price
ALLPOWERS 200W200 W23.0%Mono18.0 lbIP66$280$1.4Check price
Growatt 100W100 W22.0%Mono9.0 lbIP67$149$1.49Check price
Growatt 200W200 W22.0%Mono20.0 lbIP67$299$1.5Check price
Renogy 100W Foldable100 W22.0%Mono11.0 lbIP65$150$1.5Check price
Aferiy 200W200 W22.0%Mono22.0 lbIP65$300$1.5Check price
Ugreen 100W100 W23.0%Mono10.0 lbIP65$160$1.6Check price
Renogy 320W Foldable320 W22.0%Mono25.0 lbIP65$520$1.62Check price
Aferiy 400W400 W23.0%Mono36.0 lbIP65$650$1.62Check price
Renogy 400W Foldable400 W22.0%Mono30.2 lbIP65$660$1.65Check price
Bluetti PV120120 W23.4%Mono12.6 lbIP65$199$1.66Check price
Renogy 200W Foldable200 W22.0%Mono30.0 lbIP65$340$1.7Check price
Growatt 400W400 W22.0%Mono40.0 lbIP67$699$1.75Check price
ALLPOWERS 400W400 W23.0%Mono38.0 lbIP66$700$1.75Check price
Anker SOLIX 100W100 W23.0%Mono11.0 lbIP67$179$1.79Check price
Bluetti PV350350 W23.4%Mono30.4 lbIP65$649$1.85Check price
Jackery SolarSaga 8080 W25.0%Mono7.5 lbIP68$149$1.86Check price
Bluetti PV6868 W23.0%Mono6.4 lbIP65$129$1.9Check price
EcoFlow 110W110 W22.0%Mono8.8 lbIP68$219$1.99Check price
Bluetti PV200200 W23.4%Mono20.6 lbIP65$399$2Check price
Anker SOLIX PS400400 W24.0%Mono34.0 lbIP67$799$2Check price
Jackery SolarSaga 100100 W23.7%Mono9.1 lbIP65$200$2Check price
Anker SOLIX PS200200 W24.0%Mono15.6 lbIP67$400$2Check price
EcoFlow 160W160 W22.0%Mono15.4 lbIP68$349$2.18Check price
EcoFlow 400W400 W23.0%Mono34.0 lbIP68$899$2.25Check price
BigBlue 28W USB28 W24.0%Mono1.3 lbIP65$65$2.32Check price
EcoFlow 220W Bifacial220 W23.0%Mono20.9 lbIP68$549$2.5Check price
Jackery SolarSaga 200200 W24.3%Mono17.5 lbIP68$500$2.5Check price
Goal Zero Boulder 100100 W22.0%Mono25.9 lbIP-$250$2.5Check price
Zamp 140W140 W22.0%Mono19.0 lbIP-$400$2.86Check price
Goal Zero Nomad 5050 W22.0%Mono6.9 lbIP-$250$5Check price
How the ranking works. The headline metric is dollars per watt (price divided by rated wattage), lower is better. But two caveats matter, so we show them. First, real world output is roughly 60 to 85 percent of the rating because of sun angle, heat and cloud, so a 100W panel makes 60 to 90W outdoors. Second, efficiency decides size: a 22 percent monocrystalline panel makes the same watts as a 16 percent thin-film one from far less area, so cheap per watt can mean bulky. The weather rating (IP) tells you how much rain and dust it shrugs off. Sort by dollars per watt, then filter to high efficiency for the best real buy. Prices are USD, converted live to your currency, and reviewed regularly.

Common questions

How much solar do I need?

100W for phones, laptops and lights. 200W is the practical minimum for a 12V fridge or recharging a power station over 500Wh. 400W+ for RV life or big appliances. Match the panel to your battery.

Why does it not hit rated wattage?

Ratings are lab numbers. Outdoors you get about 60 to 85 percent due to angle, heat, dust and cloud, so a 100W panel makes 60 to 90W. Budget for the real figure.

Mono or thin-film?

Monocrystalline is 21 to 24 percent efficient, more power from a smaller panel, and the better buy for most. Thin-film CIGS is lighter and cheaper per watt but needs far more area.

What efficiency is good?

21 to 24 percent for portable mono in 2026, with N-type TOPCon cells now standard in quality panels. Higher efficiency means more watts from the same size. Filter to high efficiency.

Pairing panels with a battery? Live portable power station prices on eBay, ranked by cost per watt hour →