diy solar

diy solar

MisterSandals

Location
Silicon Valley
Background
Retired software engineer. 15 years of electrical, servo-mechanical, and solar just for fun and now to reduce electric bill!
Current or Future Solar Power System
Residence:
Schneider SW4048 online as of December 2023. Over 2 years in the making. Connected to 2 DIY 48V LiFePO4 batteries, 305A, 280Ah each with JBD 150A BMSs.
3.2kW of existing solar and micro inverters now feeding critical loads panel to charge batteries and export the rest to grid.
Recently added DC coupled Morningstar Tristar MPPT 45 (workhorse since 2009!) and 300W, because i could.
Self consumption from batteries nightly expected to reduce our grid use by 75%.

RV:
2x 165W solar on RV with 2P4S 406h LiFePO4 battery. Victron 100/30.

Greenhouse and portable power:
Currently have a collection of LiFePO4 cells, most in various batteries:
4S 206Ah battery that powers a greenhouse and heated seed trays in spring. Charged with Morningstar MPPT 45 workhorse, 14 years and going strong!

2x 4S 22Ah utility batteries for water pumps, tools and portable lighting.
6S 22Ah for portable drill and vacuum around the workshop.

Just a ridiculous (according to Mrs Sandals) number of cells, panels a electrical wires and bits.

Signature

Energy Audit.
General LiFePO4 (LFP) Voltage to SOC charts/tables 12/24/48V

See my profile for my existing systems!

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