Newpowa 160W(Watt) Solar Panel Monocrystalline 12V High Efficiency PV Module 150W/160W/170W for RV Marine Boat Trailer Camper Green House Off Grid System

A few months ago, I purchased two of the 150w mono panels. Now that summer has arrived, I've put each of them to the test, both individually and in series. At solar noon, with no clouds in the sky and tilt and direction optimized, each 150w panel produced a maximum of 100 watts. They produce a total of 200 watts when connected in series, never a watt more. I use the included 14awg 10ft cable to connect them to my Ecoflo Delta. br>br>*Update
Since my last loss, I've done some additional research and testing. Angle of the sun and panel (you want a 90 degree angle), sun intensity (which varies by latitude and time of year, not just time of day), and cloud cover are common reasons for decreased output vs rating (excluding wiring, battery type, etc). There are calculators available to help you estimate the intensity of your sun light. Mine is typically less than 1000 watts per square meter, which is the standard test condition. The temperature of the cells is also a significant factor, and I believe it is the source of the majority of my power loss. The cells are rated at 25 degrees Celsius by STC, but the NOCT, or expected temperature in 20 degrees Celsius with a 1 meter per second breeze, is 47 degrees Celsius. With up to a 0% power loss 55%/20 over 20C over 20C over 20C over 20C My cell temperature will be higher than that 47C because it is about 32C in the shade for me. For the sake of math, I'm estimating 50 degrees Celsius, but I'll be carrying a thermometer with me to take measurements. So 0. 50 ×(50C-)55 ×(50C-)55 ×( 20C)=16. 5% loss. Theoretically, a maximum of 150 watts could be produced. 165= 24. Higher temperatures resulted in a loss of 75W due to inefficiency. With a few more tweaks, I was able to get 110-degree temperatures. Each panel puts out 115 watts. More realistic test conditions should be used to give a second, less ideal rating so that people new to solar have more realistic expectations. br>br>This appears to be an industry-wide standard; however, more realistic test conditions should be used to give a second, less ideal rating so that people new to solar have more realistic expectations. PTC is a realism rating that is used in California and is superior to STC. This rating should be included. On the data sheet, I noticed that the NOCT used PTC conditions, but the rated voltage did not specify what conditions were used to arrive at the 150W rating, which I assume was STC. br>br>Based on my research, these panels appear to be on par with any other available. So far, they have proven to be dependable and durable in terms of power generation. I'll raise my rating to four stars; I'd give five stars if they had a little more transparency for realistic output, but no one does in the market right now, so no solat panel would receive a five-star rating from me. That was a long post, but I hope it was helpful.

Elisha Cantrell

| Apr 03, 2021

Because I couldn't fit the standard 60" long panels where I needed them, these came in handy. These were small enough at 50" that I could fit 1200W on the roof of my RV. On a clear sunny day at 1pm on October 9th, I measured 1140W output, which leads me to believe that these will outperform their rated wattage by July. So far, I've been a satisfied customer.

Callum McIntyre

| Jun 02, 2021

This is the second time I've purchased a panel of this type. This panel's dimensions were perfect for the crossbars of my van. I used Powerpole connectors to connect them to my Goal Zero 1400. When the sun is directly overhead, I've measured 105W from a single panel. These panels have a maximum voltage of 22 volts, which is required for Goal Zero 1400 input. I measured over 200W with the second one connected in parallel, and the sun had already passed its apogee. If they keep performing like this, I believe the investment was well worth it.

Holland Gomez

| Jul 06, 2021

I placed an order for two 150w panels. I considered the 200w, but instead of one 200, I could fit two 150s (end to end) in the space. This is for a boat's bimini. They arrived on a bright day, and the open circuit voltage and short-circuit current were in accordance with the label's specifications. They don't produce 300 watts, but I wasn't expecting them to. Other reviewers will be in charge of the power analysis. br>br>I deducted one star because there were no mounting holes. On each long edge, there are three, but none on the short edges. I had to drill a few holes in each short edge, which could void the warranty. This was a real pain compared to simply opening the box and screwing the panels in place, as I did with a competitor's panels. Because you'll be drilling into the panel, proceed with caution. To keep the bit from popping through and causing damage, I placed a one-inch piece of wood under the edge. br>br>I deducted a star for the packaging's poor quality. I placed two orders, one for quantity 2 and the other for quantity 3. The two boxes were taped together in the middle of the first order, glass to glass. The second order arrived in two packages, which worked out perfectly. The first was fine, but the second was slightly concave, and all I had to do was open the edge flap to see that the glass was completely shattered. A one-inch square icon of a cracked wine glass on the box's edge is the only indication that the contents are fragile. Is it okay to break a large fragile sticker? Sending it back and waiting for a replacement took a lot of time and effort.

Mercy BEVAN

| Apr 11, 2021

I bought four 150-watt solar panels for my sailboat and installed them above the Bimini. I can use 150 amp hours on a typical day, and these panels provide that and more. I've seen 175 amp hours and 620 watts at their peak. If I needed more amp hours, I'm sure I could get them, but on a sunny day, the batteries are usually fully charged by 1 p. m. On an overcast day, it also gets good penetration, though I've seen days when the battery was not fully charged. I'm overjoyed, and I hope things continue to go well.

Lylah NORTH

| Jul 22, 2021

It appears that none of the solar panels on the market deliver on their promises. I can't get 160 watts out of this 160 watt panel. I receive a score of 100 out of a possible 100. In direct sunlight, the lamp produces 130 watts of power. My 100w panels are in the same boat- I'm not able to get the full 100 watts of power. Aside from that, I'm fine.

Dennis Harper

| Nov 24, 2021

I upgraded from a Renogy 160w flexible panel and discovered that this one performs better in less-than-ideal lighting – my Goal Zero 500x can only draw a small amount of power (5-watts). Even when the panel is completely shaded, the power consumption is only 10 watts.

Zaiden Stanley

| Feb 26, 2021

The panel appearance appears to be of good quality. I was most concerned about the panel's ability to reach its maximum output. The peak wattage observed can be seen in my photo. Because of the varying conditions, I never expect to reach maximum power, but I've had a couple of days where I've exceeded 160 watts. I hit 120 to 140 most of the time, which is fine for the panel given that I'm not optimizing orientation and am in the Pacific Northwest. They've been on the top of my rig through winter camping, ice, and scorching summer heat and have held up admirably.

Kevin Zimmerman

| Jan 07, 2022