DIY Energy Hub

Derek Ramirez

Behind DIY Energy Hub

About

I'm 41, IT support tech in suburban Phoenix. My summer electric bill hit $380 three years running before I stopped paying it like it was fixed and started building things in the garage instead. Eighteen months ago. Since then: a 400-watt solar array wired to a 100Ah battery bank, a magnetic generator kit from a forum seller who was off about the output numbers by a factor of six, and a wind turbine I built over one long weekend that lasted twenty-two days before a blade alignment issue took some drywall with it. The car hasn't been inside the garage since February. The south wall has a dent.

The day job is IT troubleshooting — ticket filed, root cause found, fix documented. Same approach in the garage. Every build gets a log: parts list, rough cost, and what the Fluke 117 actually showed at the end of the test period. I run each setup for at least thirty days before writing anything — sixty or ninety for setups over a hundred dollars. First time I wired the battery bank, I got the charge controller polarity backwards. Sent a forum post asking if 14.7 volts was supposed to happen on a 12V system. It was not. The person who answered was patient about it. The reading I got from that mistake showed up in three articles later — knowing what a bad connection looks like on a multimeter is actually useful.

What I don't write about: whole-house generator systems, professional solar installations, or anything that requires a licensed contractor by code. My lane is DIY builds from parts and hand tools — the kind of project a suburban garage and a willingness to rewire it once can actually finish.

Not an electrician. Not an engineer. Talk to one before anything permanent. I keep a fire extinguisher next to the workbench. My wife's words when she first saw it there: "finally."

Articles by Derek Ramirez

Disclosure

Some links on this site are affiliate links — I earn a small commission if you buy through them, at no extra cost to you. I only link to energy products I've personally built or tested in this garage.