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I got a solar panel kit for our Burning Man adventure THAT STARTS TUESDAY!

I got it firstly to power my CPAP, Megan’s medical equipment, all our crazy bike lights, and phones. After testing it out for the last 2 nights, I now have the very satisfying feeling that we can power all of our personal medical equipment and personal electronics without the power grid for a very long time!

Yay solar!

I got the very succinctly named “Renogy 100 Watt 12 Volt Portable Solar Panel with Waterproof 20A Charger Controller Foldable 100W Solar Suitcase with Adjustable Kickstand for Power Station, 100W Panel-20A Controller, Black” for $160

It’s 2 50 watt panels, a charge controller, kickstand, a good protective case (good for packing away the panels!), with 10′ of wire and a alligator clips to go on my battery.

My math says that on a deeply overcast day, this system will just barely provide enough energy to power my CPAP. On a sunny day, I’ll have oodles of energy to spare. Here’s the math:

You usually get about 75% of the power out of a solar panel. 75% of my 100 watt system = 75 watts. Wildly guess another 10% in losses = 67.5 watts captured on a sunny day.

There’s about 8 hours of great sunshine per day = 540 watt-hours per day captured

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You’ll see in the photo that I’m charging at 1.0 amps at 10am on this overcast morning in the bay area. 1.0 amps * 12 volts = 12 watts. With 8 hours of sun that’s = 96 watt-hours

I measured with a Kill-a-watt that my CPAP uses about 120 watt-hours per night. My AGM  On a sunny day.

I have a 12 volt adapter for my CPAP so I don’t need to run it though an inefficient inverter. I also got a bunch of 12 volt accessory/cigarette-lighter to USB adapters to charge my electronics and my USB AA/AAA battery charger.

In 2021, I got a 35 amp-hour AGM deep cycle sealed lead-acid (SLA) battery f0r $120 to take camping. It has powered my CPAP for a max of 3 nights. The exact model is the very succinctly named “Interstate Batteries 12V 35Ah AGM Deep Cycle Battery (DCM0035) Group 24 Rechargeable Replacement Mobility SLA AGM Battery (Insert Terminal) Wheelchair, Trolling Motor, Scooter, RV”. It’s been great.

Is the Skilcraft Dual Action Mechanical Pencil a worthy replacement for the PaperMate Logo II?

Find out here!

Our family is going to Burning Man! We’re staying in Kidsville. Our camp, “The Rocking” is at about 5:10 and E and 3/4 (or you could just say “between E and F”). We’ll be there something like Tuesday thru Sunday!

We’re bringing our dudded up bikes, unique and unusual treats for friends and neighbors (several kilos of Jelly Belly Flops!), and if I get my act together, a mobile light installation called Human Zoetrope!

I spent the last year at Autistry Studios in San Rafael, helping students build all manner of things, many of which are now for sale at the in-person Autistry Makers Market store. It was really quite fun! (that’s my daughter showing off the Coasters!) The makerspace, coffee shop and store are at 850 4th Street, San Rafael, CA, in the former Copperfields Bookstore. Stop by for a great cup of coffee and wonderful gifts made by great people!

That position ended and I just started as an OT at Albany Unified School District!

We saw the Flynn Creek Circus this weekend and it was awesome! Daring and thrilling only start to describe it! The space was so intimate and the acts fun! They are bringing their tent to various spots in California and Oregon now thru the end of the year. See them in person! (and tickets were quite affordable) https://www.flynncreekcircus.com/2023-tickets/

I really enjoyed Maxim Voronin’s contortionist and card trick act with his chair! He was so “firing on all cylinders!” Every limb, every finger, even his toes were  working to various ends, proving his mastery of multiple arts. I’m sorry I didn’t get any video of it to show you!