D. Abineri
New Member
Does anyone have an opinion on the panels based on how closely they match the announced specifications. How well do they actually work?
I have 42 of these panels. 3 arrays ground mounted. I am happy with them thus far. Cannot tell you exactly if they are performing to spec as I have no way to test them definitively. I am over-paneled so I cannot get to maximum panel pv generation as I cannot use all the pv generated by the panels. I can tell you take it starts generating power a few minutes before actual sunrise and I peak and start clipping around 11am. I can process around 15kw before I start clipping as I feedback 12kW into grid and charge battery. If I had more battery then I could use more but that’s my situation.Does anyone have an opinion on the panels based on how closely they match the announced specifications. How well do they actually work?
Thanks, good info!I have 42 of these panels. 3 arrays ground mounted. I am happy with them thus far. Cannot tell you exactly if they are performing to spec as I have no way to test them definitively. I am over-paneled so I cannot get to maximum panel pv generation as I cannot use all the pv generated by the panels. I can tell you take it starts generating power a few minutes before actual sunrise and I peak and start clipping around 11am. I can process around 15kw before I start clipping as I feedback 12kW into grid and charge battery. If I had more battery then I could use more but that’s my situation.
Which Hyperion panel? Link?
Generally panel efficiency should be >22%, bifaciality >75%% and Pmax temp coefficiency -0,30%/C or under. If specs are worse than these you know they aren't latest technology commonly available. But if you get them cheap enough, they'll work just fine.
Usually panels meet their specs just fine, but it's the weather which is worse than ideal (too humid, too hot, low sun angle...).
Thanks for the details.I just also went back and checked when I had only 1 array with 12 panels up and peaked at just over 5300w pv generated and that was in January. Feb had 2 arrays up and peaked at close to 11kw. So I should be able to get 16kw with 3 arrays, I just clip way before then. Also they are angled for the spring and fall sun so should in theory max in mar and sep but no way I can reach max without additional batteries. I also peaked at 106kwh for a sunny day so far with the clipping. Not saying they are good/bad etc and really only time will tell if they hold up but that’s what I am currently experiencing with my setup.
Efficiency for 400W panel is 20,5%, bifaciality 70+-10% (=60-80%), temp coef -0,35%/C. Not excellent, not that bad either. Maybe two-three years ago these were top of the line panels, but not anymore. 0.32$/W is not cheap here for these kind of panels, but they might be were you are located.![]()
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What do you pay per watt where you are?Efficiency for 400W panel is 20,5%, bifaciality 70+-10% (=60-80%), temp coef -0,35%/C. Not excellent, not that bad either. Maybe two-three years ago these were top of the line panels, but not anymore. 0.32$/W is not cheap here for these kind of panels, but they might be were you are located.
Two months ago got quote from Bluesun 600W bifacials (N-type TOPCon, 23,2%, 80+-5% bifaciality, Pmax temp coef -0,30%/C (not Voc because Pmax tells you how much efficiency it loses when temp rises, Voc coef is needed for calculating string voltage in cold temps so it is important too). 0,19c/W all included (home delivery from China, VAT 24%). One pallet minimum.What do you pay per watt where you are?
ThanksTwo months ago got quote from Bluesun 600W bifacials (N-type TOPCon, 23,2%, 80+-5% bifaciality, Pmax temp coef -0,30%/C (not Voc because Pmax tells you how much efficiency it loses when temp rises, Voc coef is needed for calculating string voltage in cold temps so it is important too). 0,19c/W all included (home delivery from China, VAT 24%). One pallet minimum.
These panels are successor for my current Bluesun 700W N-type chingled cell HJT, 22,8%, 70+-5% bifaciality, Pmax -0,35%/C. Year and half ago I paid 0,36c/W (or was it 0,34c/W can't remember for sure) for them.
where did you order these through?Two months ago got quote from Bluesun 600W bifacials (N-type TOPCon, 23,2%, 80+-5% bifaciality, Pmax temp coef -0,30%/C (not Voc because Pmax tells you how much efficiency it loses when temp rises, Voc coef is needed for calculating string voltage in cold temps so it is important too). 0,19c/W all included (home delivery from China, VAT 24%). One pallet minimum.
These panels are successor for my current Bluesun 700W N-type chingled cell HJT, 22,8%, 70+-5% bifaciality, Pmax -0,35%/C. Year and half ago I paid 0,36c/W (or was it 0,34c/W can't remember for sure) for them.
Following - I am considering buying a pallet of these off Signature Solar right nowI am seeing these for $0.25/watt non-local but from a retailer with warranty. $0.22/w + shipping if you can take a pallet (Texas)
Today I am driving 20 minutes south to pick up the bottom 5 of a pallet for same price ($0.25/w), new and unused.
We are in December on the Monterey Bay of California
* Trees
* Fog
* Cool and wet
* Low sun angle
I am very excited to get some testing going in some non-traditional configurations. For us Mounting has been an unexpected killer.... I hadn't thought it would cost this much in time and materials to get the mounting taken care of.
* Some 2x4 scrap and barrels full of water have been our best almost-free ground mounting - 2 men in 45 minutes Not including conduit runs
* I have about 10 articulated pole mounts, but around here they are proud of fence poles and their associated bracketry
* We are working on the absolute cheapest, simple, quick, reliable, DIY Ground mounting options for distributed small arrays between 2.10KW and 4.20KW
I will post some testing results once I get a chance to set things up.
* Fluke 87V max DMM
* Klein DC Clamp Meter
* Cheap Solar pyrometer
* Various inverters and optimizers
* 5KW Xantrax
* 3.5kw sunny Boy
* 4kw solar edge
* 5kw Growatt off-grid
* 2kw Amazon Special
It won't be the most scientific data... Unless you live in Santa Cruz County.
-methods![]()
Where did you purchase these?Bought a pallet of these for $.245/watt including shipping and taxes. Purchased on Wednesday, received at local depot on Friday. bifi, n-type topcon, 1.6mm glass both sides, 21.5% efficiency.
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You’re in Timbuktu.Offer for me was only 5%. $199.75.
IDK. Maybe the length of time it sits in the cart, or possibly they have already sold enough to see they don't need to offer as much discount? Thinking it sat in my cart for a week or so before they made an offer.Offer for me was only 5%. $199.75.