I ran across this lightweight electricity-generating wind turbine at the Green Festival in San Francisco today.
Company specs:
Size:Blade/Ring Diameter: 7 feet/ Minimum clearance from roofline: 2 feet
Rated power output: 1.5kW @ 14 m/s / Annual Power Supplied: up to 2000 kWh
Electric power: 240VAC, 60Hz output voltage / can feed into grid
Noise: less than 35 decibels for all wind speeds
More info at: https://www.swiftwindturbine.com
About Lloyd Kahn
Lloyd Kahn started building his own home in the early '60s and went on to publish books showing homeowners how they could build their own homes with their own hands. He got his start in publishing by working as the shelter editor of the
Whole Earth Catalog with Stewart Brand in the late '60s. He has since authored six highly-graphic books on homemade building, all of which are interrelated. The books, "The Shelter Library Of Building Books," include
Shelter,
Shelter II (1978),
Home Work (2004),
Builders of the Pacific Coast (2008),
Tiny Homes (2012), and
Tiny Homes on the Move (2014). Lloyd operates from Northern California studio built of recycled lumber, set in the midst of a vegetable garden, and hooked into the world via five Mac computers. You can check out videos (one with over 450,000 views) on Lloyd by doing a search on YouTube: