Solar Trailer: Part 8 – Wiring the Solar Panels and UPS mods

Solar Trailer: Part 8 - Wiring the Solar Panels and UPS mods

Author: BenjaminNelson via YouTube
Go to Source
Solar Trailer: Part 8 - Wiring the Solar Panels and UPS mods

In this video, I wire up the solar panels, and produce power for the first time!
Please click SHOW MORE!

Typical 60 cell solar panels like these produce more than 30 volts each in sunlight. The three panels will be wired up in series – positive to negative, positive to negative – so that the voltage increases. The three of them together can be over 100VDC.

Because of that we will wire up the connections to the breaker/combiner box BEFORE connecting the 3 panels to each other. After that, I can disconnect power from the panels simply by flipping the DC breaker to off.

Once the panels were wired up, I set to work making a few modifications to the UPS. The main thing was that it simply did NOT fit horizontal in the truck toolbox. It was just a little too wide! So, I removed the handles and cut off the rack-mount ears. I also removed a few internal parts related to the batteries which were no longer needed, as the lithium battery is external to the UPS.

I temporarily wired the Battery, UPS, and Solar charge controller together. They already had Anderson disconnects on them, so it was pretty much "plug-n-play".

I plugged the cord from the external electric outlets into the back of the UPS and then I (once I remembered to turn it on) had off-grid electricity! I could now run my corded power tools from the trailer while working on the rest of the project!

Please note: In close-ups, you might see in some shots that they are AC circuit breakers! With this brand, the AC breakers and DC breakers look nearly identical! I ordered these breakers by mail, but accidentally got the AC version. Since this was the next step in my building process, I installed the breakers anyways, so that I would have the correct spacing the breaker box, etc. I then swapped in the DC breakers once I got those. Alternating Current and Direct Current arc differently. Always make sure to use DC rated breakers on the DC side of a solar project.

This project is a bit of an experiment in building a portable, off-grid solar system using mostly what I already have. The Charge Controller is one that I’ve already had for years. The battery is made from 7 Nissan Leaf Cell modules. See the video on building the battery at: https://www.youtube.com/watch?v=juk39…
The inverter is a repurposed Uninterruptable Power Supply (UPS) which ran on 48V and would have originally been used in a computer server room. I’m just using the inverter portion of this unit, but it could also be used as a battery charger if I connected it to wall AC power. I used this same unit to power my house during a blackout from my motorcycle. Learn more about that at: https://www.youtube.com/watch?v=-ydKi…

Tools and Materials used in this project:
Xantrex C40 Solar Charge Controller: https://amzn.to/3F0pJ41
(I later upgraded the charge controller to an Outback Flexmax80. Find out why in a future video: https://amzn.to/3EYDoJ7 )
14S Lithium Battery (Leaf Cell Modules)
2200 Watt UPS (Recycled, Repurposed)
DC Circuit Breakers: https://amzn.to/3oeUkVL
Circuit Breaker DIN Box: https://amzn.to/2ZHjx0N
Solar Cable: https://amzn.to/3umPiHC
Replacement tool box gas lifts: https://amzn.to/3zMSVb7
DC Current/Power/Energy Multimeter Display: https://amzn.to/3ikkRwZ
Stainless Steel Cable Clips: https://amzn.to/3ATglwN
Anderson Disconnects: https://amzn.to/3oen7K1
Plug-In Electric Usage Monitor: https://amzn.to/3oeVZKZ
3/4" Pillow Block Bearings: https://amzn.to/3kOxan0
Weather-proof cord grip Cable Glands: https://amzn.to/3iinBej
DIN Rail Terminal Block Kit: https://amzn.to/3CZNBmr
Stainless Steel Zip Ties: https://amzn.to/3EYENiR
Outdoor Rated Metal 2-gang electric box: https://amzn.to/3oeqikV
Two-Gang Weather-proof outlet cover: https://amzn.to/3ojzWTu
Ryobi 18V Drill: https://amzn.to/3A3msxf
Step Drill Bits: https://amzn.to/3abVAAR

If you like what I do you can support me at:
https://www.patreon.com/300MPG
Patrons see new videos a day before they go public on YouTube!

Or by shopping at Amazon anyways: www.amazon.com/shop/benjaminnelson

For more Information, visit:
https://300mpg.org

Most Popular Playlists:
Build Your Own Electric Car: https://bit.ly/2zMufmN
Build Your Own Electric Motorcycle: https://bit.ly/2AT7eOF
Solar Garage: https://bit.ly/2KgQpS5

Contact Ben Nelson:
Please just leave a comment for me at: https://300mpg.org/about/
and I’ll get right back to you.

Music by:
"Shaving Mirror" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b…

As an Amazon Associate I earn from qualifying purchases. Amazon links help support this these videos.

Go to Source

Solar Trailer: Part 8 – Wiring the Solar Panels and UPS mods
Scroll to top