100W Compact Design Monocrystalline Solar Panel

Amazing panel, works great i get anywhere from 70 to 90 watts with it laying basically flat.

These panels are awesome. They out put as advertised and are very easy to work with. they can deal with up to 85 MPH highway speed for serval hundred miles. they tanked a light hail storm with no issues. These are 100% good to go. they are nice and rigid and will fit in a roof rack using 80/20 aluminum extrusions. If you need wattage on your van build this is what you want to go with. I run a 12v fridge, work labtop, gaming labtop, 4kw inverter, lights, fan, a ton of stuff. I can run a 5000 BTU AC unit off nothing but the noon sun on a clear summer day. These will keep the lights on.

I originally tried to save money and buy a different brands and it turned into a nightmare. Inconsistent output and panel failures kept me quite busy with returns and installing new panels just to have them die within or just after the return period. After returning the other panels and buying 8 of these, I have to say I am totally amazed by the quality all around. The box, how the panels were packed, how easy it was to remove the panels from the box, technical specifications with temperature coefficients on the panels itself. Each panel has an individual serial number for the warranty. This is something you won't find on a lot of 'cheaper' panels. By paying the premium which in hindsight was well worth it, I received a 10 year warranty on the panel itself which is guaranteed to not have hot spots as it ages. The panel also comes with a guaranteed power output graph over the years. I have the specifications to know if the panel is failing or working as it should. Everything I've seen so far tells me they stand behind their products. From Testing to testing after installing the ground mount solar rack, all panels are consistent, arrived in pristine condition and most of all, performs as the manufacture says they would. The frame is made of a thicker material and the quality of everything is top notch compared to the other panels I've purchased and reviewed. Since installing these panels, I discovered my solar irradiance monitor is showing low and needs recalibration. There are many panels that are less and seem very attractive. After everything I've been through, I will buy Renogy from now on. I highly recommend this brand and panel for anyone who is doing a DIY solar project. this outperforms even the best of the 'cheaper' panels purchased before now.

Well, built and not too heavy. I use them every day on my sailboat in the Caribbean. They are a bargain better by them before Import Duty goes up

The panels (5-stars) work well...when... ...they actually get around to shipping them to you. I've eeduced 2-stars because of the aggravation with shipping. The vendor/Amazon will claim that the item has shipped, for weeks, but the truth is revealed as UPS (the record of truth) always denies receiving the the item(s). You may get the item in 3 weeks. This situation is worse if the panels are on sale (10% off, etc) - even longer transit times. You may get the item in a month or more. So the panels are very good but shipping games are terrible. Also, the vendor hasn't figured out how to use packing tape (say 3-4 8" pieces), so that their overall good packaging won't pop open - with damaged items eventually arriving. To be fair, they will provide you with a UPS label to send them back. This is good. Those responsible for these Renogy fulfillment blunders should be replaced, yielding more profit for Renogy and more satisfied customers that spread the word. I am ready to buy 6-7 more of these 200W panels, but...what further headaches will I be dealing with? It is amazing how some of these companies manage to make a profit. This isn't rocket science! One smart person put in charge of fulfilling orders, and like magic, business would improve a lot. I will update this review when I attempt this drawn-out journey again. Update 10/4/24: This last panel ordered arrived quickly and in a nice new sturdy box. See what happens when the smart people get involved. Adding one more point!

Solid Panels, Lightweight and Efficient—But Bifacial Needs More Clearance I’m currently running four Renogy 250W bifacial panels (shown in my photo), and they perform impressively—on clear days around noon, I can get over 1000W. I chose these panels specifically because they’re lightweight and easy to carry up a ladder, which made installation safer and more manageable. My other option was the 320W Renogy panel, but it had fewer bus bars, which I felt could affect efficiency and durability over time. Charging my Delta Pro (3600W capacity) from 10% takes about 5 hours on sunny days (9am–2pm). On cloudy days, it can stretch to 8–9 hours. I plan to install two more 250W panels soon, and I’ll likely paint the mounting surface white to boost reflectivity. Eventually, I’ll add more brackets to increase clearance to around 3 inches. I’ll be stacking them—not sure it’s designed for that, but I’ll McGyver it. If that doesn’t work, I might just leave it alone. For wiring, I bought 100 feet of 10-gauge solar wire for about $150 (should’ve gone with 50 feet instead). It plugs into the panels easily, and the other end uses an XT60i connector to plug into the Delta Pro. I did make a few pilot screw mistakes—missed the roof 2x4 twice—but patched it up with Henry silicone putty. Hoping that holds and doesn’t leak. The brackets I initially bought didn’t support linking six panels together, so I had to order extra T-shaped brackets to bridge between panels. They save about 1.5 inches between panels, which helps when space is tight. Shipping: I ordered 4 panels in one day during a sale (that was the max allowed), then 2 more a few days later. All 6 arrived together—expected delivery was 6 weeks, but they showed up in just 2. Unfortunately, 4 of the panel frames were bent at the back, and one panel had a banged-up middle section that warped the entire panel. I even considered stepping on the center to straighten it out. Luckily, they all work and the front sides were undamaged. It feels like I may have received cosmetically rejected or slightly damaged stock. Looking ahead, I’m considering building a 48V LiFePO₄ battery with 16 cells and a 200A BMS, since shipping batteries to Hawaii isn’t an option. Overall, great performance and a safer install thanks to the lighter weight. Just keep in mind: bifacial panels need proper clearance and reflectivity to deliver their full potential—and be ready to improvise a little if you're DIYing like me. 9/2/25. Update from 4 panels to 6 panels. Now even faster charge.

I had the need to build a exhaust fan for my small greenhouse. I decided to have it solar powered and run on 12v instead of running extension from the house. I have watch a fair number of videos with RV'ers and Van Life travelers that spoke very highly about the Renogy 100 watt panel. I did some additional research and decided on still going with Renogy. They may not be the least expensive, but I can see how they got the great reputation. The panel came in simple but sturdy packaging. I unboxed and tested right away and provided the proper voltage. The panel is a quality build. It has provided reliable charging power to the small battery bank I have in the greenhouse that powers the exhaust fan and a couple of other USB fans I have in the greenhouse to move the air around. I have it attached to and small frame I built out of galvanized angle iron. (If anyone likes the look, all I did was buy the angel iron set used to secure garage door tracks to the ceiling. The sizes in the package worked out perfectly. That, some nuts and bolts and your good to go.) I have purchased a second panel for the additional power I will need for a water pump for the greenhouse. I would recommend the panel to anyone who wants a small panel. The panel prices seem to move up and down a bit so watch the prices. Update 5/30/21 I am a bit frustrated. My second panel came damaged (during shipping) and the replacement panel that was even more damaged with shattered glass. Both were handled by the USPS. It would appear that the panels are dropped or slammed into things when shipped. Amazon only offered the return on the second replacement and I will have to reoder the panel as a new order. Note to AMAZON - Don't ship these using the USPS. The other shippers may cost more, but two returns are not making it cheaper.... Update 8/19/21 Just a quick update. I received the second panel in June and it was in perfect shape. I have had the green house fans running all summer without any issues. Refund from the second returned panel was taking longer than the allotted time frame. I contacted customer service through the website chat function and the rep was great!! 5 stars. Responsive and took care of crediting my account right then.

As soon as I received the panel's I unboxed everything and set them in the sun to check if they worked. First things I noticed is they are built really well, and they sent me 24 volt panels and I ordered 12 volt so a big plus for me, 96 volts of power from an expected 48 so again a big plus in my favor (After ordering a total of 22 of these they are all producing more than 100W each unfocused and YES they are a good deal). Next I pointed them at the sun and was getting more than rated voltage when in a direct angle to the sun, and I got a reading of 24.5 volts DC on all but 1 which was 22.8 volts DC with them pointing unfocused; in an attempt to imitate the angle they would be in a stationary system on the roof. Of course my opinion may change if they don't work long term but right now I couldn't be happier with the purchase. Edit: It's been a few months now using these panels fully off grid. And I couldn't be happier. Yes I could have spent a lot more money and had fewer panels by buying 300+ watt panels but space wasn't a worry for us money is. We would have spent quite a bit more per watt buying the higher wattage panels. The important thing is each and every one of my Renogy solar panels produces more than the rated wattage under full sun. It isn't a lot but we get over 3200 watts total under full sun with 30 panels now. Which means there is over 200 watts higher than rated wattage total. Thats 2 panels worth. I call them our ghost panels. My opinion of these panels and the company couldn't get better. The PowMr 5000W CC/Inverter we are using can take 450V to the MPPT with a max of 500V 16 amps. Two arrays of 15 panels each at 13 amps is where we are now, thats about 250 V 6.5 amps per array. We are going to add more panels to reach the 450V 16A input potential. Right now we only use battery power under full sun if we use the dryer or microwave oven, everything else is powered between say 8:00 AM to 6:00PM by our panel array which are not focused and is a bit small yet. That includes recharging our battery bank, watching TV, coffee on, lighting and the fridge. If the dryer and AC are on at the same time we may see a small draw on the batteries around 1 or 2 amps when the dryers heating element is powered, which is intermittent. Right now we are fairly balanced. The panels run everything in the house pretty much during daytime including recharging batteries, and the batteries at night; which means the panels are producing all the electricity we use. Adding a few more panels will end using any battery power during a sunny day and adding panels to reach 450V max will probably accomplish that on a cloudy day. And thats the last thing I want to mention. Even though power production does depend on how much light is blocked by clouds or shadows, they do produce power on overcast days. A thin layer of clouds won't appear to make much difference and even on a day with a few rain clouds around we will have power coming from the panels. So my rating is 100% 5 Stars and I'd add another 5 if I could. The panel that produced 22 volts was made wrong. One of the cells isn't connected and what looks like the solder strip is laying across the neighboring cell face. Still can't complain I purchased 12V panels.