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That's great news. I bought 4 of the Newpowa 210W 24V 65" x 27" panels, just haven't installed them yet. But in another week or two I'll have another data point on them if anyone is interested.
Newpowa solar panels
- Thread starter BretS
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I have a 50A 5th wheel, 6 used panels for 1700w total, 3 on the roof, 3 ground mounted. A Growatt 3000W 24v, 8s 280ah EVE cells. On an ideal day I can easily run the medium sized RV fridge until night, heat a 12 gallon electric 1450w water heater or make some espresso or use the microwave and still have enough power to have full batteries for the night. I switch the fridge to propane overnight.
At 930ah you are pretty much set for 2-3 autonomous days. I'm jealous!
chrisski
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Have you attempted AC? My RV is the same size, but I have slightly less wattage at 1350, and would not consider it.
Yes I was able to start 1 AC unit as long as I don't use any other high loads. I was afraid the surge would just trip the BMS (Overkill 8s 100A) but to me surprise it actually ran it without issues. This was with the fridge in AC mode and a LED TV on. The BMS app showed around -40 to 50amp load, but that was probably including the solar power generated by the panels.
I didn't run it for long or at night though.
I didn't run it for long or at night though.
chrisski
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With a 12 volt system. I expect my AC to draw 155 amps. I have not been able to push more than 74 amps from my panel. That would be negative production. In AZ, the AC would need to run at night.
I have not attempted to turn on the AC yet.
I have not attempted to turn on the AC yet.
BretS
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I installed a Hutch Mountain Microair Easystart on my 15K main A/C this weekend, and it starts on my 3400W generator on propane with the gennie in economy mode, and it was no problem. I put it on for running it some on my inverter when I get it in. If you are going to use the A/C on solar or a small generator, I recommend it.
Keep us posted. Im highly interested in these panels as well and it’s very encouraging to hear that @cinergi is getting more than it’s rated power.
I was thinking 2 of these in series would make a great option I have planned for a temporary mount on top of my car that sits on my driveway. It would be easier to remove and store 2 smaller panels (27lbs) rather than one larger residential panel (45lbs), especially if I have no help or need to do it quickly.
D
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Indeed, I'm planning on wiring mine as 2S2P, since two of them in series fits nicely below 100V (Voc = 39.66V + temperature variation) so I'm using a Victron 100V/50A MPPT. In theory you could also do just 1 in series with a 24V battery; they've designed this panel specifically for 24V battery systems.
Check this guys out. He has the 210W 24V version direct from Newpowa. He’s claiming to hit a peak of 526w when wired 2 in parallel (260w each) through his Vi
I really hope these overperform their specs so I’m curious what you’ll be seeing with your panels.
That's me and yes they continue to overperform.
NPhil
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I have four 100W NewPowa NPA100S-12H panels (now out of stock, evidently), which I have been testing, now and then, for a while. I started on this project about a year-and-a-half ago, and tinker with it from time to time, more during the last 13 months. I've not mounted panels yet, but I've come as far as acquiring batteries, a Tracer AN 20A charge controller, an inverter, and doing quite a few tests with a pair of the panels, in series, to charge a 24V battery. It's working well enough, in San Jose, CA, setting them on the windshield of my van in the parking lot behind my office (which just happens to be pointed pretty near due south), to make enough hot water with an electric kettle for a pot of tea, many mornings, with a cup of Ramen for lunch and another pot of tea, when I am so inclined, with two of the panels charging a test battery which is a little too small (7S4P Tesla 2170 cells) . As far as I know, the NewPowas are OK, although, in my location (San Jose, CA), I have never seen them produce more than 85W each. I don't have enough expertise to know if that's good or bad, in absolute terms. It's good enough for me, and they will fit on my (mini) cargo van. Today there was a little bit of rain, and I put the panels out. Sadly, I think not enough rain for a real test, but I estimate from what I've seen that I can get about 1/10 of normal output on a cloudy day, with a few sprinkles, of the kind we see in San Jose often.
My worst problem with NewPowa, as far as I know, is that my design evolved to a total of 12 panels, in a configuration which really prefers panels all of the same size and electrical characteristics (just ordered a Tracer AN 40A which I hoped would free up the Tracer AN 20A), and now I can't buy more.
My worst problem with NewPowa, as far as I know, is that my design evolved to a total of 12 panels, in a configuration which really prefers panels all of the same size and electrical characteristics (just ordered a Tracer AN 40A which I hoped would free up the Tracer AN 20A), and now I can't buy more.
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chrisski
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I don't have newpowa, but I do have lion energy 100 watt panels, and my outpyt is not much different than @NPhil
I have not seen rainy days yet, but over cast days are about 1/6th the normal output.
I think that's still a decent output. Most of the time I'm watching my 100 watt panels and I have them angled at the sun and tilted, I get about 85 watts. Sometimes I've seen 92 watts. My meter has pegged at 104 watts.
I have not seen rainy days yet, but over cast days are about 1/6th the normal output.
I think that's still a decent output. Most of the time I'm watching my 100 watt panels and I have them angled at the sun and tilted, I get about 85 watts. Sometimes I've seen 92 watts. My meter has pegged at 104 watts.
I have 4 of the 150s they used to sell, now the 160s. They work as expected and I'm very happy with them.
NPhil
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I just went out to have a look, and got "rained on" (very lightly). I'm getting 300 mA at 29V from the two panels (but it's rather late in the day, now), and the 7S4P battery is back to 27V. But, I only made 1 pot of tea = 160 WH, plus inverter losses, and some other losses from recharging a 12V backup battery through a DC to DC converter (because the 7S4P pack sags badly running an 1100W electric kettle, my inverter shuts down at 20.2V, so the pack can't boil a full thermos carafe of hot water without some help, the panels weren't putting out enough, on a cloudy morning, to do that as quickly as I preferred, and I wanted to test 12V to 24V and 24V to 12V charging anyway), I guess around 175 WH total, out of 518 WH (specified) in the pack.
I think that will scale, to 1200W (really more like 1050) from 12 panels (only 4 on the road, but 12 when the minivan is stopped and the panels un-stacked), into a 40A Epever Tracer AN, charging around 1.8 KWH of battery pack to start (I can add more later, if the money doesn't run out), delivering 6 Thermos carafes of tea (TCoT might become my standard unit) on a cloudy day.
Maybe 7 TCoT if I really got 100W, but I would have to buy a 50A Epever, which is a bit of a jump in price.
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thanks! No, the 260 was due to cold weather.. I'm now peaking somewhere around 230-237 in ~50 degree weather, panels tilted but not accurately, up in Connecticut.
Still pretty good. I’m hopeful I would be close or at 200w in 80-90 degree summer temps in San Diego. I’m sold, I may pick up a set of 4!
D
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I just mounted all 4 of mine this afternoon! I still have to buy some more wire to button up the installation so it might be another week before I have data. My panels are tiltable so I can optimize for the season and try to get the maximum wattage.
For anyone else looking to get some of these 24V panels, here's my buying tips having done this just a couple months ago. I purchased mine directly from Newpowa on eBay for $200 including shipping. Amazon was a little bit more expensive and I got turned off by the fact that the Amazon one (when I was looking) showed it as 200W instead of 210W. However, I believe I confirmed with Newpowa and they are the same model number NPA210S-24H as the 210W panels on eBay and on the Newpowa website.
They ship in individual boxes by regular Fedex/UPS and have adequate padding. One box had a small puncture in it, but it was on the back side and I didn't notice any mark on the white backer material so overall no complaints about packaging. Before I ordered I actually watched a YoutTuber compare 3 different panel manufacturers and how they were packaged and what their cost/perf was. It may have been LithiumSolar, I don't think it was Will. Value wise, $1/watt isn't a great price in general for PV, but if you're buying 1-4 panels, a lot of that is just the shipping cost, which like I said is baked into the price on eBay. You would have to pay a few hundred dollars of freight shipping from SanTan Solar too, so it's sort of unavoidable unless you have a good local panel source or are buying in higher quantities.
For anyone else looking to get some of these 24V panels, here's my buying tips having done this just a couple months ago. I purchased mine directly from Newpowa on eBay for $200 including shipping. Amazon was a little bit more expensive and I got turned off by the fact that the Amazon one (when I was looking) showed it as 200W instead of 210W. However, I believe I confirmed with Newpowa and they are the same model number NPA210S-24H as the 210W panels on eBay and on the Newpowa website.
They ship in individual boxes by regular Fedex/UPS and have adequate padding. One box had a small puncture in it, but it was on the back side and I didn't notice any mark on the white backer material so overall no complaints about packaging. Before I ordered I actually watched a YoutTuber compare 3 different panel manufacturers and how they were packaged and what their cost/perf was. It may have been LithiumSolar, I don't think it was Will. Value wise, $1/watt isn't a great price in general for PV, but if you're buying 1-4 panels, a lot of that is just the shipping cost, which like I said is baked into the price on eBay. You would have to pay a few hundred dollars of freight shipping from SanTan Solar too, so it's sort of unavoidable unless you have a good local panel source or are buying in higher quantities.
NPhil
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Update on the 100W (NP100S-12H): I heard an, eh, rumor that they will come back into stock.I just went out to have a look, and got "rained on" (very lightly). I'm getting 300 mA at 29V from the two panels (but it's rather late in the day, now), and the 7S4P battery is back to 27V. But, I only made 1 pot of tea = 160 WH, plus inverter losses, and some other losses from recharging a 12V backup battery through a DC to DC converter (because the 7S4P pack sags badly running an 1100W electric kettle, my inverter shuts down at 20.2V, so the pack can't boil a full thermos carafe of hot water without some help, the panels weren't putting out enough, on a cloudy morning, to do that as quickly as I preferred, and I wanted to test 12V to 24V and 24V to 12V charging anyway), I guess around 175 WH total, out of 518 WH (specified) in the pack.
I think that will scale, to 1200W (really more like 1050) from 12 panels (only 4 on the road, but 12 when the minivan is stopped and the panels un-stacked), into a 40A Epever Tracer AN, charging around 1.8 KWH of battery pack to start (I can add more later, if the money doesn't run out), delivering 6 Thermos carafes of tea (TCoT might become my standard unit) on a cloudy day.
Maybe 7 TCoT if I really got 100W, but I would have to buy a 50A Epever, which is a bit of a jump in price.
In other news, I just found, courtesy of Amazon "AI", this morning, another possibility: https://www.amazon.com/dp/B08ML4V8GQ/
I am not eager to change brands, but, I am enticed by the light weight of these, eh, newcomers, because my final configuration is already over 200 lbs., which is a lot for the roof of a minivan, I suppose. I have a cargo van, so I can find the strong points easily, and I just learned that a Transit full size is said, by the Ford sales dept., to carry 420 lbs. up there (although there is, apparently, a treatise somewhere on center of gravity which I have not read, but, maybe that will work out, since I will carry batteries, and other heavy things, low), so, by extrapolation, I should be good for 275 or so. But I don't like to push it. These new guys, apparently, could shave off something like 85 lbs. from my 12 panel stack, and, they are thinner, which helps, too. Sadly, they don't appear to match extremely well electrically with my existing panels, but, 85 lbs. is a lot to carry on the roof of a minivan if I don't have to.
Anyone think I should take a chance on a couple of them, to see what they are? My budget is limited.
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preorder the 210/24v for 189 on their site directly: https://www.newpowa.com/collections/rigid-solar-panels/products/newpowa-210w-24v-solar-panel
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