Recall for a second a project called Rubble Floor by Dave Hakkens. Hakkens recently published another project called “Wind-Oil” to show how to use industrial processes at home to create good food. He made an oil pressing machine that’s powered by a small-wind turbine. The machine has a worm drive that presses nuts and seeds — walnuts, peanuts, sesame seeds, linseeds, hazelnuts, etc — and spits out oil in one bottle and a food pulp in another.
It’s been a while since I’ve seen anything new in the world of small wind, but I recently noticed that Bornay turbines from Spain are now distributed in the United States. The company has several models, including two-blade models rated at 600 watts, 1500 watts, and 3000 watts, and a three-blade model rated at 6000 watts. The Bornay 1500, for example, is about a nine-foot turbine that weighs 90 pounds and cuts in at winds of six mph. The 1500-watt kit is sold for $20,000 by Electrex Industrial Services.
Southwest Windpower, maker of the small-wind turbine Skystream, just announced a refreshed Whisper line of turbines for battery-charging applications including off-grid residential homes. The Whisper 100 (7′ diameter) has the potential to generate up to 100 kWh per month at 12 mph; the Whisper 200 (9′ diameter) has the potential to generate up to 200 kWh per month at 12 mph; and the Whisper 500 (15′ diameter) has the potential to generate up to 538 kWh per month at 12 mph.