diy solar

diy solar

Recent content by erictstahl

  1. erictstahl

    Where to buy rail and clamps?

    Hi. I have 8 x 100 watt Renogy panels. I want to buy rail and clamps but am having a hard time finding small quantities. Any suggestions? Thanks.
  2. erictstahl

    Where / how to configure low voltage cutoff?

    @rmaddy I got the VE.Direct Smart Dongle, plugged it into my inverter and was able to set the low voltage cut off. Thank you again!
  3. erictstahl

    Where / how to configure low voltage cutoff?

    After a little more poking around I see that my inverter only has a ve.direct port, so I’ll get the ve.direct smart dongle. We’ll see how this goes…
  4. erictstahl

    Where / how to configure low voltage cutoff?

    Thank you. It’s like a puzzle to figure all of this out. I really appreciate it pointers.
  5. erictstahl

    Where / how to configure low voltage cutoff?

    I'm ordering a Smart Dongle now. I was so confused that I couldn't monitor or configure the inverter. Thank you!!!
  6. erictstahl

    Where / how to configure low voltage cutoff?

    Thanks for the quick reply. That makes sense. The Phoenix 1200 doesn’t connect via Bluetooth so I need to figure out the adapter / dongle situation. I will look the ones you referenced above. Thank you!!!!
  7. erictstahl

    Where / how to configure low voltage cutoff?

    I’m stumped. Sorry this is a dumb question. I have an SOK 206 connected to a Victron 1200 inverter and a smartshunt 500. I want to set the low voltage shut off level but can’t figure out how to do that in the inverter or shunt. Do do I need to add an extra device for this? Any pointers are...
  8. erictstahl

    How to Trickle Charge Your Tesla from DIY, Off-Grid Micro-Solar (+12 miles/day)

    @merlin714 i added a second charge controller today. I capped each at 25 amps. I’ll see how it goes tomorrow. In hindsight I wish I built a 24v system, but it’s just the learning curve.
  9. erictstahl

    How to Trickle Charge Your Tesla from DIY, Off-Grid Micro-Solar (+12 miles/day)

    Or I can get a second 30 amp charge controller and wire it to the second array. Then each array/controller can put out 360 watts into the battery for a total of 720 watts. This is probably the easiest/cheapest option.
  10. erictstahl

    How to Trickle Charge Your Tesla from DIY, Off-Grid Micro-Solar (+12 miles/day)

    Or I suppose I could get a second battery, wire it for 24v and charge it at 30 amps to get to 720 watts... but then I'd need to replace my 12v inverter. Expensive lessons!!!
  11. erictstahl

    How to Trickle Charge Your Tesla from DIY, Off-Grid Micro-Solar (+12 miles/day)

    Thanks for flagging this. I've been researching all night and you are right! I'm new to all of this. So you are correct that I'm over paneled with this controller. I think it will be ok on the input, but the output is limited to 30 amps x 12 volts = 360 watts into the battery... which wasn't...
  12. erictstahl

    How to Trickle Charge Your Tesla from DIY, Off-Grid Micro-Solar (+12 miles/day)

    Thanks. The charge controller is spec'd at 30 amps and 100 volts, so as long as you stay under that, you are fine. I have two arrays of 4 panels each. Each array is wired in series, then the two arrays are wired in parallel. According to this calculator, it's only going to peak at 74.4 volts...
  13. erictstahl

    Micro Solar (800 watts) for Home Backup

    I did this mostly for fun 8 x 100 watt Renogy panels Victron 30/100 charge controller Victron smartshunt 500 Victron Phoenix 1200 inverter SOK 206 battery Goal Zero Yeti 500x I use it to power my wifi, garage door, ebike and flashlight batteries. It also can charge the Tesla model 3 in a pinch.
  14. erictstahl

    Off Grid Solar backup / Tesla Trickle charger.

    Hi. I did a similar project - small solar rig to trickle charge my Tesla. Here's an overview I ran into the same grounding issue that you describe above. You have to ground the AC output from your inverter to the chassis, then ground the chassis to an Earth ground. Here's how it works in a...
  15. erictstahl

    How to Trickle Charge Your Tesla from DIY, Off-Grid Micro-Solar (+12 miles/day)

    This is just a proof of concept that I did while stuck in quarantine. It shows how you can build your own micro solar system for trickle charging your Tesla (or anything else). I will add more panels / batteries over time. By the end of the day it added 12 miles of range to to the car / day...
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