s/v Ninaa Ootakii - Starting Over - Solar + Wind + LiFePO4

Started by Stone, November 24, 2024, 11:43:28 PM

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Stone

Ninaa's main bank is cooked.

So before I put her back in the water, I need to make some changes, and I'd love some input.

Have:
8 Trina solar 265's.
These were holding up pretty well to my loads, may upgrade, limited to 8 panels due to mounting options.

2 midnite classic 150's.
Only needed one for previous system, but may use the second.

4 24v midnite chinook wind turbines.

Main bank was (
8 L16 lead acid floor sweeper batteries.

Currently seriously considering 4 EG4 rack mount LiFePO4 24v 200ah server rack batteries, expansion to 8 if needed.

These: https://www.currentconnected.com/product/eg4-ll-24v-200ah-v2-server-rack-battery/

I believe that the classic 150 will work just fine here.

So the next question is: how do I integrate the wind turbines?

They use a dump load controller that, when the battery hits the set point, switches to a big resistor to dissipate the excess power as heat. I will likely make these 24v hot water heater elements at some point.

Current set point is 30.2vdc.
Set that way because the low setting was trying to dump my solar panels through the dump loads :(

I feel like this isn't going to be optimal, or anything close to optimal, to help charge LiFePO4 batteries.

I can think of a few ways to make this work, but I'd love to hear yours :)
Stone - (s/v Ninaa Ootakii)

8x 265w pv
4x 24v chinook turbines
2x classic 150s
8x L-16s (24v house bank)
8x GC2s (12v convenience bank)