Summer of Solar Cookin’

Homegrown Neighbor here: I was lucky to recently receive a really nice solar cooker from a family friend. Apparently it had been sitting in her garage for a while, and I was happy to take it off of her hands. The model is called an SOS Sport. It is a box style cooker with a black interior and clear, insulated lid. It also has a removable reflector to help concentrate the light in the box. The reflector is helpful, but I’ve seen the tempe...

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How To Dry Food With the Sun

Drying Apricots in Southern California–early 20th century style. Dehydration is one of my favorite food preservation techniques. Drying food concentrates flavor and is a traditional technique in our Mediterranean climate. Best of all, drying food is one of the best applications for low-tech solar power. In many places, you can simply set food out under cheesecloth to dry in the sun. But there’s a catch to sun drying: humidit...

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Remember to Label Those Jars!

Label, label, label!” This was one of the most important lessons I learned in my Master Food Preserver training. You’ll note, from the jars above, that I’m not very good about this. When were those jars canned and what’s in them? I have no idea. They were probably the result of some late night canning frenzy two years ago. At the time I probably thought to myself, “I’ll label them in the morning.”...

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Build a Solar Dehydrator

Like many of you, I suspect, we’ve got a few too many tomatoes at this time of the year. One of our favorite ways to preserve our modest harvest is with our solar dehydrator. There’s nothing like the taste of sun dried tomatoes, but unless you live in a very dry desert climate like Phoenix, Arizona you can’t just set fruit out in the sun and expect it to do anything but go moldy. In most places in the world, including here in...

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A Parvati Solar Cooker

Damn, is solar cooking easy! Put some rice in a pot, place the pot in this simple panel cooker, made with cardboard and aluminum foil, stick it out in the sun and two hours later you have lunch. We built our “Parvati” solar cooker with plans designed by Shobha Ravindra Pardeshi that can be found here. Pardeshi, who runs an “appropriate technology” company with her husband in India has another design for a similar dish-sha...

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DIY Outdoor Shower

Photo by the MacAllen Brothers Showers are overrated. The first step in considering whether to build an outdoor solar heated shower is to take a step back and consider boring old conservation. Shower less and make sure that your domicile is equipped with a low-flow shower head. Not only will you be saving water and burning less fossil fuels to heat that water, but your body odor will soon separate your real friends from superficial hangers-on....

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What’s the Best Solar Food Dryer?

...ity. In a desert climate you can just put your food out on screened trays. But just a bit of humidity in the air makes this approach risky. Food can spoil before enough moisture is removed. That’s why you should build a solar food dryer. Brace Direct Food Dryer. Image: FAO. There are two basic designs for solar food dryers: direct and indirect. Direct dryers are just a box with a piece of glass on the top. Indirect dryers use a box to colle...

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Solar Light Hack

We wanted a solar powered light over our new entrance arbor. The problem is that most of the lights available are just plain ugly. And the solar panels on the cheaper models are usually mounted on the light itself making it impossible to place them in a shady spot. I came up with a simple solution. First, I bought an inexpensive solar light intended to be mounted on a fence. I took it apart and desoldered the LEDs off the circuit board. Nex...

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The Sundiner–A Groovy 1960s Era Solar Cooker

Backywards beekeeper Dennis of The Buzz in the Dale, was nice enough to gift me his vintage Sundiner solar cooker that he found at a garage sale a few years ago. Resembling a cross between a portable 1960s record player and a satellite, the Sundiner is compact, light and easy to carry. A built in thermometer lets you know when you have hit cooking temperatures. The unit is so efficient, that when I set it up at noon it hit 350° F within minut...

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Another Panel Solar Cooker

Poyourow demoing her solar cooker design There’s no one size fits all solution when it comes to the world of solar panel cookers. All have their advantages and disadvantages. I got an email from author Joanne Poyourow, leader of the amazing Los Angeles Environmental Change Makers, with a simple and effective design she came up with. Pouyourow’s cooker comes together much faster than the CooKit design that I blogged about earlier th...

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