Senior Radio Editor Andrea Kissack also contributed to this post.

When we started working on this project, we thought it would be easy to find people to interview: D.I.Y.ers with a passion for sustainable building who were testing out new technologies in their backyards. We called consultants, local suppliers, green-minded architects, and collected as many leads as we could. We found a handful of great subjects, but we never quite tapped into that centralized hub we'd envisioned. And that, it turned out, was the point. When you're a D.I.Y.er, you tend to D things Y.

Which is what's so appealing about these projects. Green innovators like those we meet in the radio piece and slideshow are working on their own initiative, spending much more time and money than they would with more conventional technologies, and running a high risk of failure. Ultimately, though, we'll all learn from their mistakes.

Wind Turbine

Chris Beaudoin fits one type of these backyard innovators: He's a long-time environmentalist willing to spend some extra cash trying out something new. San Francisco's Department of the Environment put Beaudoin in touch with Blue Green Pacific, a local company that will ultimately have two turbines up and running on Beaudoin's garage. So far there are only about five "micro-wind" projects like this in the city, about half of them operational. But stay tuned. Gavin Newsom is encouraging homeowners to experiment with wind turbines, and the state of California is already offering rebates on home turbines.

Dixon Beatty and Stephanie Parrot, who live in West Oakland, fall at the other end of the spectrum, what I'd call extreme do-it-yourselfers (though I'm sure they'll disagree). They've spent years remodeling a beautiful old Victorian in West Oakland that they still call a work-in-progress, despite well-functioning solar thermal and photovoltaic systems that keep the house warm and lit with almost no help from PG&E.

Dixon Beatty

When Lisa and Michael Rubenstein wanted to build their green dream home in Hillsborough they thought they would derive the majority of their energy from photovoltaic rooftop solar panels. PV Panels, afterall, have been the energy technology of choice for eco-friendly buildings. But as the Rubensteins waded further into construction, their architect suggested a geothermal heating cooling system. They were told geothermal can provide the most energy efficient, environmentally friendly home and so, they decided to go for it. Together, with PV solar and solar thermal panels, the Rubenstein's monthly energy bill is only eight dollars. Not bad for a 6,000 sq. foot home. It was an expensive project but what they have created is an experimental, contemporary home that gives living green a whole new aesthetic.
Lisa and Michael Rubenstein

Also merging modern design with eco-practical, is Sunset Magazine's idea house for 2007. PIX Located in San Francisco's Mission District, Casa Verde is Sunset's first idea house to be focused in an urban setting, The model home features solar and wind power, a green roof and a sleek, eco-friendly aesthetic.

Listen to the"Beyond Solar: Do It Yourself Home Energy radio report online, and watch our Web Extra: Generating Energy Right at Home slideshow.

7/23/08 UPDATE: The contentious battle between solar energy and redwood trees has come to an end. Governor Arnold Schwarzenegger has signed a bill into law that guarantees if California property owners plant a tree before a neighbor installs solar panels the neighbor can't require the tree to be chopped down, or trimmed, if it is shading their solar panels. Check out this article in the San Jose Mercury News.

You may listen to the "The Right to Sunlight: Solar vs. Redwood Trees" Radio report online, as well as find additional links and resources.