Maybe a year ago I was reading about a parking lot in town, at the local Kyocera corporate headquarters, where they’d installed what they were calling “Solar Trees.” (They actually trademarked the name, but really aren’t all trees solar?) The Kyocera species of trees were steel poles that supported big canopies made up of solar panels. They provided shade to the cars below, and at the same time they generated power. By the corporation’s estimate, one 30 by 40 foot solar tree would reduce as much greenhouse gases as a small grove of real trees.

Installations like this are starting to appear in various places, including a couple of parking structures at UCSD where they’re installing rooftop arrays over this summer.

I’ve thought about doing more with active solar devices, but where to put the panels was always an issue since the house has some pretty wacked roof angles, most of which don’t face south. Some sort of solar structure in the garden might be an interesting solution, maybe something combining a patio cover function with power generation.

The Kyocera trees seem to be slanted more to corporate environments, and besides I find them more than a little monolithic and overwhelming. Would you want these in your garden? But something along these lines could be practical, good for the environment and attractive. Sounds like a job for an artist or designer instead of an engineer…

That these trees sprouted here in town left me wondering if there was any sort of link between them and Jim Bell, a local self-proclaimed “environmental designer” who, among other things, has run for mayor (unsuccessfully) twice, and once for City Council (also unsuccessfully). I met him at a book signing circa 2003, and he was hot on the idea of covering all the roofs and parking lots with solar panels. His web site has an interesting statistic:

In the San Diego/Tijuana region, where I live, 20 percent coverage of our buildings and parking lots with solar photovoltaic (PV) cells, coupled with efficiency improvements, would generate enough electricity to replace all forms of energy (electricity, natural gas, gasoline, and diesel) currently used in the region.

That idea was probably not his originally, either. But it speaks to a movement that’s in the air. Maybe the movement could begin right at home, in our back yards…