Renogy Solar Panel 100 Watt 12 Volt, High-Efficiency Monocrystalline PV Module Power Charger for RV Marine Rooftop Farm Battery and Other Off-Grid Applications, RNG-100D-SS, Single 100W

These solar panels look to be well made and were easy to attach to the steel bracket that I purchased here on Amazon (bracket description below). I have two other foldable solar panels (a different brand facing to the West) so I know I'll likely never get the output advertised, so with that in mind ... I live in Phoenix AZ; in the early morning, around 7/8 am, I'm pulling in around 290 watts, by 9am I'm pulling in around 320 watts, and by noon I'm pulling in around 340 watts. These numbers do coincide with my portable foldable solar panels so I didn't feel a huge disappointment when I didn't get the full 400 watts. The reason I purchased these was because I wanted something a little sturdier and panels that have a smaller footprint to catch the morning sun. Overall I'm happy with my purchase and I'm thinking of getting another set to replace my foldable panels that currently facing the setting sun.(Solar Panel Mount Brackets, 2 Sets 45 inch Adjustable with Foldable Tilt Legs, Suitable for 2-4pcs 180 200 300 400 500 Watt Solar Panel for Roof, RV, Boat, and Off-Grid - PFCTART Store I'm very happy with these steel brackets for the Renogy solar panels)

Why did you pick this product vs others?:Not that I had any reason to think less of it, but my Jackery panels have never given me the max rated input. I have purchased 2 of these Renogy panels so far, buying 2 more today. The first 2 both gave me over 100% of the wattage ratting in full sun. I was getting 109 to 114 Watts on each in the height of the day (in Colorado high altitude if that helps). Like the idea of the 200W but seems to be harder to locate a pole mount for those, so getting more 100W to stay positive on my greenhouse power demands.

he panel arrived well-packaged and was paired with a Bluetti AC180. I'm not sure how many watts this panel is supposed to produce, as I don't know much about solar efficiencies, but it only produced 130 watts on a sunny day in Florida.To be fair, it will charge the Bluetti during the day if your plan is to charge it while the sun is out and use the stored power at night. However, if you're also using the Bluetti during the day—even with a small load—you may need at least one more panel to keep it fully charged for nighttime use.Remember, the effective charging power going to the battery is calculated as:Solar panel output (watts) – Power usage (watts) = Net charging power.So in my case, if I’m running an 85-watt refrigerator during the day and the panel is producing 130 watts, only 45 watts are actually going toward charging the battery for nighttime use.

With the explosion of home/recreational battery back-up systems Renogy has stepped up it's game to support this market with quality, reasonably priced solar panels. Typical Bus Bar connections in many panels is about 9 or 10BB, these Renogy panels have 16BB and bumps efficiency to about 24%, this is good. My system can handle up to 150VOC, the Renogy 24V/200W panels have a VOC of 37.4 V each so I maxed out at 4-24V panels for 800W and on good sun days I get 800W incoming. However, had I thought about it a little more I would have gone with the Renogy 12V/200 Watt panels. The 12V version has a VOC of 24.48V so I could have got 6-12V panels for a total of 1200W of solar. Done make my mistake if that's the way you want to go.

I am an electrical engineer, so take that into consideration for my review. These are my first solar panels, for my first solar project. I bought 1 of these panels to run my 12V attic fans, a perfect match since they draw more power when the sun is brighter (and the attic gets hotter). The fans draw about 7 amps at 12 Volts maximum. (85 Watts). Realized I needed more power so added a second panel. Paired them up with a cheap PWM controller where I learned that you cannot hook the panels up in series if you have a PWM controller. Also using a 20 Ah Eco Worthy battery. Swapped the PWM out for a Victron MPPT controller. Really worth the extra money. I am in Central Florida, and on a Bright sunny day in July, the most I have ever seen out of these panels is about 85 watts. This is measured at both the load and at the panels, so it includes about 5 watts loss in the wires. Not sure what it would take to get 100 watts our of these. Otherwise, they seem to work well. They come in a convenient size, and you could probably fit one on your SUV roof rack. They appear to be relatively durable. All in all, they will do the job for me. Prices seem volatile so you may want to keep an eye out for discounts. I am going to buy a larger battery to go with these panels.

I buy a lot of solar panels and have been working with solar energy since 1992. These N-type cells offer some significant advantages and represent another step forward with their increased efficiency and promise of less degradation in year one, which can be significant. They also tend to produce a bit more energy in hot weather than do traditional PERC mono crystalline cells. Not a huge difference, but then again these panels are priced very well at 80¢ per watt right now. This is orders of magnitude cheaper than conventional panels 20 years ago, and with higher efficiency. Upon inspection they look great, they were packed very well in strong boxes, and they put out slightly better than 100 watts as specified in my testing. Try them, you will not be disappointed.