Jinko Solar Eagle MX on shaded roof

[pchiquit]

Hi:
Anybody here has some experience with Jink Solar Eagle MX panels:
https://www.pv-tech.org/products/jin...ith-high-yield
I've seen the comments on this thread:

https://www.solarpaneltalk.com/forum/solar-panels-for-home/solar-panel-system-equipment/362293-jinko-maxim-panels

but that being a year old I'm wondering if anybody could share any other experience.
Thanks
P.S. Had to edit my initial posting as answers are off the topic.

[ButchDeal]

I would need a SolarEdge dc optiizer for each two panels and the cost keeps on pilling up.

You would use a DC optimizer for EVERY PV panel not every other one (unless you have a large 3 phase commercial system).

[J.P.M.]

No amount of tech/gadgets will produce electricity from sunlite that isn't there. Do as you wish, but installing PV in heavy shade is like putting a piece of heavy cloth over a bucket that collects rainwater and expecting a productive outcome.

I'd put my efforts and assets into load reduction. Better return, less hassle.

I've seen that utube before.

[pchiquit]

ButchDeal the 2 panels per Solaredge DC Optimizer while not ideal, was recommended by Stion https://vimeo.com/148276221 . I liked the idea as the panels are smaller and would reduce cost of that solution (that I'm not favoring at this time).

J.P.M. I've already did all that I could on load reduction. Double pane windows, extra insulation on ceiling, caulking, enclosed crawlspace, solar water heating, tankless gas heater, kill-a-watt around the house, so now I'm moving to the energy generation part.
You have seen that video on the other boards that I posted asked about the payback. Anyway, I'm really looking for feedback on the Maxim/Jenko panels and not on payback. I've found out about there is almost certain TV reception interference, but I don't have a TV, so I'm not concerned about that. I'm wondering about reliability and other people that may have installed it.
Also found this older thread:

https://www.solarpaneltalk.com/forum/solar-panels-for-home/solar-panel-system-equipment/362293-jinko-maxim-panels

but Jink came up with a new version of the panel, so I would appreciate any experience that could be shared about it.


Thanks

[TAZ427]

Just looked at the video, and it looks like on April 28th, it's full sun from 12pm - 4pm, and would only get better through the summer months. That said, there's yard shading in front of the house during that time period, which would lead me to believe it would likely be full shade all day during the winter months, since the sun sits lower on the horizon and those shadows hitting the front of the house would be hitting the roof.

You probably want to get the Solar Angle of Incidence information for all the months of the year at least, and get up on the roof, and figure out when it would and wouldn't be shaded for different months. If you need/want electricity in the winter, and it's fully shaded (which I'm guess it would be) you went from bad production from a low angle of incidence to a no production during those months.

Also, use PVwatts to get your estimated production, and go into the spreadsheet to kill anything that's going to be fully shaded, to get some idea of what you're going to get out of it.

Looks like you may have some property, is there another location where you can put it in as a system on the ground, yes there's a bit more engineering involved for proper mounting, but if you can do this in a location that's doesn't have the shading issue, it may be worth it.

[Sunking]

Only way to make this work is get a chainsaw and cut all the trees down that are casting shade on your roof. Other wise forget it and do not allow any idiot to tell you otherwise including yourself. Otherwise to get a tan, get a beach towel, lay it down on your living room floor, and soak up the sun. Not going to work.

[pchiquit]

TAZ427 appreciate the thoughtful answer. I already checked the angles and yes, I'll have full shading on winter months, but it will be from bare trees, so some light will pass,. The goal is not if I'll have a payback or not. I have some money to burn, want to learn about PV solar and that is the only roof I have. That is settled and I'm not worried about a payback.
With that said, I'm really looking for some feedback on the Jinko panels. Anybody has installed and has some experience to share about the panel. maybe in addition to the other threads that I posted?
Thanks.

[Mike90250]

I'll have full shading on winter months, but it will be from bare trees, so some light will pass,. The goal is not if I'll have a payback or not. I have some money to burn, want to learn about PV solar and that is the only roof I have. That is settled and I'm not worried about a payback.

Solar panels work in full sun. The shade from a pencil will shut down 1/2 -1/3 of a panels output. Shade from a bunch of branches an only be worse.

I hear you want to do it, knowing the winter months won't have much production.... so have fun.

[J.P.M.]

TAZ427 appreciate the thoughtful answer. I already checked the angles and yes, I'll have full shading on winter months, but it will be from bare trees, so some light will pass,. The goal is not if I'll have a payback or not. I have some money to burn, want to learn about PV solar and that is the only roof I have. That is settled and I'm not worried about a payback.
With that said, I'm really looking for some feedback on the Jinko panels. Anybody has installed and has some experience to share about the panel. maybe in addition to the other threads that I posted?
Thanks.

Feedback: Hands on or actual experience not needed as much as common sense and some knowledge that most every panel in a location and orientation and annual shading regimen will produce about equal annual output per STC watt.

Jinko panels will work (or not work) just about the same in terms of energy production per STC watt as any other equipment in the same location and orientation. In sun they will produce as much electricity per STC watt as other panels. In shade, they will produce as little per STC watt as other panels.

[pchiquit]

J.P.M. I hear you and you are right. No sun, no power and no electronics can make it appear. Winter will be worse and I may not get any power. But hear me: that's the only roof I have and my only patch on the sun, albeit in partial shade on some months of the year. I have spare cash and I want to play with solar panels, I don't need to recoup my money. If you guys would be nice to a newbie and allow me to do that, can anybody share some real world experience with a Maxim powered solar panel? Maybe solar pete can share how his system is working, as he mentioned having that panel?

Thanks

[bcroe]

J.P.M.
I have spare cash and I want to play with solar panels, I don't need to recoup my money. If you guys would be nice to a newbie and allow me to do that, can anybody share some real world experience with a Maxim powered solar panel?

Nothing wrong with getting some small scale experience, then you are more likely to get it right
for an all out system later. I did the same thing. good luck, Bruce Roe

[J.P.M.]

J.P.M. I hear you and you are right. No sun, no power and no electronics can make it appear. Winter will be worse and I may not get any power. But hear me: that's the only roof I have and my only patch on the sun, albeit in partial shade on some months of the year. I have spare cash and I want to play with solar panels, I don't need to recoup my money. If you guys would be nice to a newbie and allow me to do that, can anybody share some real world experience with a Maxim powered solar panel? Maybe solar pete can share how his system is working, as he mentioned having that panel?

Thanks

I wonder if you are reading/hearing/understanding all of it. As for me being right, that's a matter of some opinion.

Now read/hear this: I don't care if you throw a heavy tarp over your array to keep from getting it wet, or anything else. Not my house, array, money, life, whatever. Never did. Not about to start. NOMB. Do as you please and Amen to the freedom. What I think of the efficacy of what you're doing or wondering about matters precisely, and identically, zero.

You asked if anyone has experience with Jinco panels. I DO NOT.

Continue reading as you wish, or not.

However, since I'm of the opinion that most every panel in equal (electrical) sized systems in the same service, duty, location, shading and orientation will operate and produce about the same annual (and to a very small extent daily) output, with mostly the same electrical characteristics, it seems to follow that to the degree my opinion has some validity, a Jinco paneled system will operate similarly to most any other system using quality equipment. So, that might mean those with experience and working knowledge of PV systems who own/operate systems in heavily shaded service may have some valid thoughts on performance and particular operating characteristics of systems with shading similar to yours, Jinco or any other equipment mfg., and they might be willing to offer comment or share information.

As for being allowed to do what you want, first off, no one has such granting power but that you relinquish it, and second, at least as for me, If you're interested, see the 2d paragraph above under now read see this..

Take what you want of the above. Scrap the rest.

[TAZ427]

TAZ427 appreciate the thoughtful answer. I already checked the angles and yes, I'll have full shading on winter months, but it will be from bare trees, so some light will pass,. The goal is not if I'll have a payback or not. I have some money to burn, want to learn about PV solar and that is the only roof I have. That is settled and I'm not worried about a payback.
With that said, I'm really looking for some feedback on the Jinko panels. Anybody has installed and has some experience to share about the panel. maybe in addition to the other threads that I posted?
Thanks.

I did a look around the forum, which it appears you had as well, since you included the only somewhat deep discussion about the panel in your OP. I don't think anyone is going to comment that the panel is great or crap w/o having some personal knowledge of using it or others who have reported their usage. It is a buyer beware situation when someone seems to be promising a bit too much as these panels seem to imply. Another downside from my personal perspective is that they're Poly and not Mono, I'd suggest you google Poly vs Mono Solar and judge for yourself, but I personally wouldn't buy Poly.

As others have said, while the panel is functional, it will end up producing about the same amount of a similarly rated panel w/o the built in 'solar optimizer' between double rows of cells vs standard diodes.

[azdave]

Gotta love marketing!

The module is claimed to produce up to 20% more energy under such unfavorable conditions.

So under such unfavorable conditions, they claim to produce up to 20% more than a standard panel. If a standard panel produces squat in unfavorable conditions. How much is "up to 20% more" of squat?