Super Cheap Solar Panels Actual Performance Check

This video shows the actual performance data for used cheap solar panels from SanTan Solar.
SanTan Solar Online Store:
Resource Links:
For large orders and pallet pricing contact Linda (480-584-4281 ex 120) or email ( ) and mention EverydayDave
SanTan Solar Online Store:
$58 230W Tested Used Solar Panel:

Solar doesn’t make sense for everyone and I have found a great free resource that’s on YOUR side. It’s called EnergyPal, they will help you determine if solar is RIGHT FOR YOU and set you up with the lowest cost installation that meets your needs. If you follow my link to sign up you will get a $500 gift card when your install is complete!

Or, if you want competitive quotes from local solar installation dealers, try Energy Sage:

Resource Links:
10 AWG/Gauge Solar Cable:
MC4 Connectors and Tools Combo Kit:
Solar Crimping Tool:
Solar Panel MC4 Cable Connectors:
Solar Panel MC4 Connector Assembly Tool:
ArmorLay Commercial Grade Driveway Fabric:
UV Resistant Black Zip Ties:
EV Charging Cable:
Panel & Inverter package:
Racking System:
SolarEdge SE7600H-US Inverter:

I’m currently reviewing the Bluetti EB70S power station, you can get an additional $5 off the current sale price using the coupon code “DaveEB70S” and this link:

Links to related videos:
Avoid The $4,000 Mistake I made:
South VS West Array Performance:
Super Cheap Used Solar Panels:
Full Solar System Install:
One Year Performance Review:
Cost of my System VS Quote:
Planning Your Solar Array Episode 1:
4 Things to Know About Solar in the Snow:
Ground Vs Roof Mount Solar:
How to Get A Permit For Your Solar System:
How to Crimp MC4 Connectors:
Remaking my J-Box to reduce fire risk:
3 Solar Panel Wiring Issues Answered:
Net Metering Explained With Actual Data:
$599 Starter OFF Grid solution:

00:00 Intro
05:15​ Results Data
09:59 Conclusion

Music Attribution:
Song: Electro-Light & Shiah Maisel – Letter [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream:
Song: Cytrax – Feelings (feat. Émilie Rachel) [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream:
“Sunshine” Kevin MacLeod (
Licensed under Creative Commons: By Attribution 4.0 License

This video is for information purposes only, and does not constitute professional advice. Solar systems can and do involve dangerous electrical connections. If you do not have experience with electrical wiring, please seek professional support.

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  1. i love your frank talk around the costs and what you learned! i'm looking to build an off-grid solar system for my homelab to run server hardware without impacting my electricity bill. i live in canada so just getting a feel for the rules and regulations of cross-border shopping

  2. Are there any used solar panels available to buy like these in Europe? I wish there was. 😊

  3. your equipment seems sensitive enough to detect the difference between clean and dusty/dirty solar panels. is there a time frame or maintenance schedule for cleaning solar panels to hopefully improve their performance?

    i notice at some point in this video that the used panels where dirty, where they cleaned before the gathering the data,.. or better yet were all the panels cleaned, both 'new' and used before the tests were ran?

    i enjoy how thorough your videos are
    thanks for another good video!

  4. Great video, Dave. I wonder if the degradation curves between new and used panels will look the same.

  5. I went to their grand opening in Savannah and they have a great setup down there. The majority of my panels have come from there and they've all worked well for pennies on the dollar vs new panels. Really easy to deal with too.

  6. At ten cents on the dollar which is what I paid for my solar panels it's pretty much a no-brainer.

  7. I worked for a solar panel manufacturer, and I don't think you "wasted money" buying new panels. Not only have your used panels lost a chunk of their useful life, they have also been handled and then shipped lots more. A new panel might be shipped twice before it gets to a DIY homeowner. These have been shipped at least 3 times, and maybe more. Also installed, removed, and packaged. All of that can impact the electrical connections in the cells. In addition to the wear and tear, there is the shorter lifespan and the lack of a warranty…You invested in a solid mounting structure, and a state of the art inverter, so why go cheap on the panels?

  8. What solaredge optimizers do you have for your Panels ?
    I am using p400 with 375w LG panels. My LGs are producing about 300w at peak time. I am thinking of swapping 12 of my LG for 430w Longi or Jinko.I want to get as much as I can from both my Inverter (10k) and optimizers. ( even If I have some clipping on mid day ).

  9. In a grid tie setup, what happens if panel array produces more power that the home is using? My power company does NOT do net metering.

    A step further: off grid setup. Can an off grid setup operate during the day without batteries as long as panels produce more power than is being used by the home?

  10. This is about what I saw: 80-85% efficiency for the used panels over the new. Still impressive value at that price point.

  11. I've actually toured their Arizona facility… top notch guys there. I did my whole boat, storage and workshop solar setups using their "used" panels…. and cost is dramatically cheaper than new!

  12. Some of the utility or federal incentives don't apply when using used panels. It's usually better to pay a little more for higher output panels to reduce your racking cost. Solar modules degrade about 1% per year, so a 1 or 2 year old panel is pretty close to its output when new. Those 385W panels are a bargain….but timing is everything when you find a deal like that.

  13. Dave, please show us the back of your solar array support structure. I’m very interested in how you laid out the unistrut and conduit angles and junctions.

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