Renogy Bifacial 115 Watt 12 Volt Solar Panel Monocrystalline Rigid High-Efficiency PV Module Power Charger for RV Marine Rooftop Farm Battery and Other Off-Grid Applications

Very happy with the performance under all sorts of light conditions. It's noticably better than my other 200W panel and sometimes hits the rated power. Construction seems decent.

I originally had just one standard renogy 200W solar panel mounted on my van roof.I added this 220W panel and my solar yield has literally tripled? Even though my wattage has only doubled (420W total).It’s March right now. It has been nothing but overcast and rainy these last few months, and I’ve been getting 50-80W from both panels, over the 4-5 hours of useable daylight we get.It’s charging my 200Ah lithium batteries about 25-50% per day.I have about 15cm of space under the solar panels for reflection and ventilation, perhaps this is helping a lot too, for the bifacial part.I can’t wait to see what the yield is in summer, and also when the panels are tilted up!Be careful when buying these that your MPPT can handle all this power. I have a 100-30 victron, which maxes out at 420W at 12v according to the spec sheet, which is almost exactly the amount of solar I have. But if this panel is delivering more than advertised, then I’ll need to upgrade that. Especially since you don’t want to be running an MPPT at its max capacity as it has lower efficiency and I’ll get hot.Absolutely fantastic invention from renogy, 10/10.Incredible overcast performance, I will be buying 2 more to fill out the rest of my roof in due course.The underside of the panel looks a bit funny with each section being a different colour (maybe they made mine with different batches of components, see my pics).This panel is also a few cm bigger than the 200W renogy panel (in both width and height) so if you have OCD, you won’t be able to mix these panels together.It also has different sized sections inside the panel.

Sturdy and decent power even when overcast,but poor quality pannels in the rear.A little bit heavy due to bifacial ,but per total i am happy with it.

Bought this 220w Renogy to charge my 1200w Aferiy power station faster than using my Ecoflow 110w portable solar panel. I must say I am very very pleased with the output, it exceeded my expectations. I am managing 240-247w in good sunny clear skies. Please note, this is not permanently fixed to a roof or anything else. I reposition and tilt during the course of the day for optimal output wattage. I have a South facing garden so only move about 3 times a day. In one of the photo, I am pointing where it will normally go in the morning if the madam doesn't have clothes on the line. I charges my Aferiy in 4-8hrs (weather dependent) and my Aferiy runs my fridge all through the day and night as my fridge regulates it use of current. Will purchase another in the near future but for now..this is 👌. Highly recommend but can't guarantee you will generate over 240w if fixed due to placement, tilt and location.

Bought two115 watt bi facial panels from renogy. They are a nice size measuring about 31x30 inches almost square. The idea is to fasten two together connected in series on my 24v system or still have the option to use just one on a 12v portable powerbank.

This product far exceeded my expectations. Really well made. Plenty of holes for bracket positions. And the wattage I get is slightly higher than advertised when the panel is in direct sun.BUT, that's where the positives stop.I tried contacting Renogy. This was not an easy task to start with. No customer service phone number, period.The email they have is no longer used. I tried a few times, but I just kept receiving an email saying - "Dear Customer,We have upgraded our service system, and [email protected] will be migrated to the new service center. [email protected] will no longer serve as the primary service center. You can log in to the latest service center at https://service.renogy.com/login to view relevant information about your orders and tickets.".Basically it's a online form you fill in and submit.I did this every day for 9 days. I did not receive any response so I gave up.Because I believe customer support and customer service is as important as the quality of the product I have to score Renogy 2-stars out of 5.I will not be purchasing any more products from Renogy, nor will I ever recommend renogy.

As it's been cloudy, and, I use this in my flat which is over 15 floors i have been getting on average 30 to 40 watt every day for about two weeks so far. It has gone as high as 70 watts when we had the sunny day. I would imagine i would have got better if i was using it outdoors directly under the sun

While not the cheapest panel for it's quoted output this panel (220watt bifacial) consistently performs above it's 220watt rating and it's performance in winter/lower light conditions compared to my other brand panels is exceptional, easily outperforms my bigger panels in winter conditions.