Build Guides intermediate
How to Build a DIY LiFePO4 Battery Bank: Complete Guide
Step-by-step guide to building a LiFePO4 battery bank for solar — cell selection, BMS wiring, fusing, and safety from someone who's built three.
Real builds. Real data.
Real solar.
DIY solar guides from someone who powers his home with solar. Honest equipment reviews, free sizing tools, and step-by-step build walkthroughs.
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Build Guides
Step-by-step project walkthroughs with photos from actual builds — van solar, off-grid cabins, DIY powerwalls, and more.
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Reviews & Testing
Honest product reviews backed by real measurement data. Panels, batteries, inverters, and charge controllers tested in the field.
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Technical Reference
Wire gauge charts, NEC code requirements, battery configurations, fuse sizing, and other evergreen reference material.
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Troubleshooting
Inverter error codes, diagnostic flowcharts, and fix-it guides for common solar system problems.
Latest Articles
View all → Build Guides beginner
Getting Started with DIY Solar: A Complete Beginner's Guide
Everything you need to know before building your first DIY solar system — from panel selection to battery sizing.
Build Guides beginner
Solar Panel Wiring: Series vs Parallel vs Series-Parallel Explained
When to wire solar panels in series, parallel, or series-parallel — with real voltage/current math and shade impact analysis.
Technical Reference
Understanding the 30% Federal Solar Tax Credit (ITC) in 2026
How the federal solar Investment Tax Credit works in 2026, what qualifies for DIY systems, and how to claim it on Form 5695.
Technical Reference
Solar Wire Gauge Chart: Complete AWG Reference for 12V, 24V, and 48V Systems
AWG wire sizing tables for 12V, 24V, and 48V solar systems. NEC ampacity ratings, voltage drop calculations, and derating factors.
Reviews & Testing beginner
Best LiFePO4 Batteries for Solar in 2026: Tested and Compared
Hands-on comparison of 6 popular LiFePO4 batteries for DIY solar — real capacity tests, BMS features, price per kWh, and which to buy.
Built by a Solar Homeowner
I use solar to power a large part of my home, drive two EVs, and have hands-on experience with panels, batteries, inverters, and system design. Every guide is based on real experience, every review uses real measurements, and every tool is one I'd use myself.
Tested
Real equipment, real measurements, real data.
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Step-by-step builds you can follow this weekend.
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