Solar Panel STC, PTC Performance Tests and Datasheets

[@joq702]

Fantastic Martin. I need to show this to my customers. They need a reality check, reference other than my own statements that heat, cell temp, really can impact performance.

[@robertcalkjr.8325]

Thanks Martin. I enjoy learning about solar power and panels, etc. It's amazing how much power from the sun is going to waste!

[@artemisXsidecross]

Thank you, I enjoy and appreciate the information you provide and the time you take to share it. :)

[@jec_ecart]

Excellent information

[@awardblvr]

Martin.. Brilliant... Now.. Do you have any comment about the accuracy of inexpensive Solar panel testers for MPT such as the WS400A PV solar panel tester (Aliexpress or Amazon < $100) for measuring VOC & MPT. I'm doing some panel testing on my now-failing 15-year old SunPower panels and seeing much higher MPT values (with the cheapie tester) than when I measure Voltage and current across a 12 ohm 200W load and calculate the power by P=EI.

[@Obi-Ralph-Kenobi]

Many thanks for these videos, no wonder I am a subscriber.

[@speedbird522]

Hiya, would like to hear your opinion on Tesla Powerwall.

[@Mosolarfan]

very nice, I learned some useful info from this thanks

[@stephanie-jaynemaher8741]

Goodday, I am a student in South Africa studying electrical engineering. Somewhat inspired by your videos which I have followed for some time. I am looking to purchase an oscilloscope, do you have any second hand ones you can help me out with. I am based in Durban.

[@MitchMartinEngineer]

+Stephanie-Jayne Maher Should look into getting a cheaply priced Rigol DS1054Z. Probably your best bet for an introductory scope.

[@photovoltaic4you]

what's the difference between the analyzer I-V 4000 and the analyzer I-V 400?

[@WizzRacing]

I'm not sure but does the tool cover micro invert testing on a whole array? It would seem you would still need to check each panel if you don't have software to plot each panel over the course of the day, week or month. Which is a true way to monitor panels performance.

[@laurentkyungu2611]

HI THERE, COULD YOU PLERASE GIVE ME THE NAME OF THE STC TEST METER THANKS.

[@ramanlakhanpal2234]

Hi can u please share video of NOCT test.. How we do perform..??.. If NOCT Increase./Decrease... What can be cause?? .

[@bbewkram1]

Heat is obviously a problem. I'm in a situation where I have unlimited water. Is there a way to water cool PV's?

[@jinusiret]

Hi, dear nice video, Can u explain how you got the loss of 87.4W in the entire string. I am stuck on it, i cant able to find this calculation pls help me. the exact i want to know is how you converted -487.6W into 87.4W Power. pls

[@artemisXsidecross]

Another example of not knowing enough information puts anyone in a position of trusting an 'expert' whose motivation needs to be understood. Trust has proven to be extremely variable to knowledge or its lack, and the age old problem of being 'conned' into wishful thinking. There is no free lunch.

[@AhmadAlghannam]

Tm = 20.4 + 1.2×(Ta) Where: Tm = module operating temperature °C Ta = ambient temperature °C ............According to Pate (1992)

[@shantayprueeissen8914]

With Avasva plans doing something like that was easy.

[@J3D1D14H]

I’m currently doing a scientific report for highschool and this is probably too deep lol

[@shantayprueeissen8914]

I did something very similar, new plans from Avasva helped me with this.