Renogy 2PCS Solar Panels 100 Watt 12 Volt, High-Efficiency Monocrystalline PV Module Power Charger for RV Marine Rooftop Farm Battery and Other Off-Grid Applications, 2-Pack 100W

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.

Strung up 4 of these on an off-grid cabin connected to a 40A Renogy Rover and Inverter Charger. They keep my 200Ah battery charged up no problem. I’ll be expanding to four more in the coming years.

Solid Panels, Lightweight and Efficient—But Bifacial Needs More ClearanceI’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.

At first I was really bummed, footprints all over the box, torn box and the box is clearly marked no step, fragile, etc. I thought for sure the panel was going to be trashed (Thanks UPS, grrr).... I pulled it out and did as thorough examination for physical damage and saw none. Did a quick voltage test with the panel laying against the shop and all seemed ok. Mounted it up on my shed with Z-brackets, rubber washer style hex self drilling fasteners and lay on, solid copper tin-plated grounds to the frame of the panels with 1/4 inch stainless steel button head cap screws (BHCS) and a stainless nut backer with a star washer. I also used a little 120 grit sandpaper and wd40 to make sure the anodization was off on both side of the frame. The Renogy panels DO NOT come with ground hardware, more than likely due to (How the heck do we know how you're going to mount this?) and was not unexpected. I had some 10 ga MC4 connectors and cable that made it into the far side of the shed. Why did I not mount it closer? For easier expansion of course! From their into the shed via a waterproof box, then down to 60A/1000V breaker, then routed the cables out through a waterproof pull box, from there, used schedule 80 to 18" below grade and back up to penetrate the shop. Then onto a 3/4" backboard and into a Victron 100/50 Smart Controller. @ 2:45 PM once the clouds broke for a minute or two I saw 236 watts!!!!! That's through 50'+ of tin plated copper10ga (6mm2) cable and a disconnect! Pretty impressive! Of course I live in Colorado at 5800' +, the sun here is wicked, and It's July first but it in my mind a 200w panel that can be beat to death by UPS and still put out 236W in the early afternoon, is a freakin winner.