Tools & Apps

Fertilizer Mix App I Built With Claude

Blueberry Meadows Fertilizer Mix Calculator

My fertilizer mixing calculator for the Masterblend 5-11-26 + Epsom salt + calcium nitrate system:  Pick a crop, hydro or soil, and get gram (or stock-jug ml) amounts for 1- and 5-gallon batches. Built for my own garden — use at your own risk (details on the page).

NREL’s PV Watts Calculator

If you’re interested in solar energy and want to see your tax dollars at work to provide something useful, look no further than the PV Watts Calculator . Brought to us by the National Renewable Energy Laboratory (part…

Google Sheets PV Tracker

I created a Google Sheet to track some of the most important elements of our PV systems. I upgraded and automated my tracking in 2026. I track the amount of electricity we’ve used each day (the Load), the amount our PV system has produced both in total and at the individual “string” level, and how many kilowatt hours we’ve put into and taken out of our batteries…

Home Assistant

I’ve been into home automation since somewhere around the year 2000. It’s been long enough that I can’t remember exactly when I got started but I vaguely remember wanting to control some Christmas lights, and using X10 equipment…

Solar Assistant

Given that our off grid home was basically a big experiment, I wanted to track how much energy we’re using and how much we’re producing, along with how much energy was in the batteries. The company that markets…

Emporia Vue Energy Monitor

If you want to live in an off grid property, the single most important thing you can do to prepare is to understand the amount of electricity you will need. There is no replacement for this step, and…