PV1
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Posts: 2864
Joined: Fri Apr 27, 2012 4:22 pm
Location: Pittsburgh, PA
Contact: Website

Re: Off-Grid Solar Install

Sun Dec 25, 2016 11:13 am

Block diagram coming soon.

Solar panels picked up last night. Pictures of all equipment are in the Dropbox link posted up-thread.
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
Solar-powered since 10/10/2013

"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015

2017 Bolt EV LT in Orange with QC - 7/31/2017

Driving electric since 2-21-2013.

JoeS
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Joined: Thu Dec 15, 2011 5:47 am
Location: Los Altos Hills, California

Re: Off-Grid Solar Install

Sun Dec 25, 2016 10:30 pm

PV1 wrote:Solar panels picked up last night. Pictures of all equipment...
Talk about Christmas presents! A Merry Christmas to you and all our i-MiEVers :D
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV

PV1
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Posts: 2864
Joined: Fri Apr 27, 2012 4:22 pm
Location: Pittsburgh, PA
Contact: Website

Re: Off-Grid Solar Install

Mon Dec 26, 2016 9:54 am

Thanks, Joe. Merry Christmas.

I should be able to test the charge controller today. I got the day off of work, and would like to hook up a couple of panels and get a pair of modules charged.

I was able to power up the controller the other day and run through configuration. Temperature compensation and equalization are turned off. Absorb and float voltage points are set to 49.3 and 49.2 volts respectively.

Here's a diagram showing the system configuration (minus AC and control circuits):
https://www.dropbox.com/s/8cl77cna418cr ... g.png?dl=0
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
Solar-powered since 10/10/2013

"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015

2017 Bolt EV LT in Orange with QC - 7/31/2017

Driving electric since 2-21-2013.

PV1
Site Moderator
Posts: 2864
Joined: Fri Apr 27, 2012 4:22 pm
Location: Pittsburgh, PA
Contact: Website

Re: Off-Grid Solar Install

Tue Dec 27, 2016 7:51 am

Charge controller works :) . I took 3 panels and two battery modules and hooked them up yesterday. It was cloudy, and with the panels laying flat, I was producing about 120-130 watts, with a brief spike to 200 watts, but it fell off to about 70 watts as rain moved in (packed everything up before it rained, though). Aux 1 of the Classic is now set in "Nite Light" mode, which activates a 12 volt relay output when the panel output drops to below 30 volts (essentially dusk), and turns it off when the panels reach battery voltage (dawn). This will work to control the light circuits based on outside light and eliminate the clock timers they are on now.

I set arbitrary 8 amp current limits to protect the wiring I was using, but I never got close to that (battery side peaked at 5 amps). VOC of the panels was 120 volts DC. Hopefully -10 F won't drive this up over 150 volts (the Classic's HyperVOC protects it up to 150 + battery voltage, so 190-200 volts is the max, but 150 or less will allow the Classic to still function). My micro-inverters are rated 48 VDC max input, and that times 3 is 144 volts VOC, so I should be safe.

I left everything hooked up for about an hour. Still didn't move battery voltage :lol: , but that's a good thing. I'm not used to experimenting with batteries that have this much capacity. I will have to lodge a complaint against the shipper, though. Their rough handling broke the plastic covering on one of the two battery modules that I've opened so far, and both have had the coolant fittings bent inward (despite the seller building a wooden shell to protect them).

Also, to try and keep things organized, I added links to my original post of all documents and pictures linked so far. Pictures of my test setup will be with the equipment pictures.

The inverter arrived today.
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
Solar-powered since 10/10/2013

"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015

2017 Bolt EV LT in Orange with QC - 7/31/2017

Driving electric since 2-21-2013.

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