On-Site Energy02
The latest home-sized power and wind turbines produce energy more efficiently than early models.
WHAT MAKES IT GREEN?
WIND TURBINES
The science of small, single-family-sized wind turbines is rapidly advancing. The latest models address technological issues that have slowed market acceptance in two major ways. First, they start spinning sooner-in winds of about 6 mph. Second, they produce less noise and vibration. But other forces have also given small turbines a welcome boost-notably the availability of federal tax credits (info at
www.dsireusa.org), and regulations in some states require utilities to buy back “extra” power from homeowners at a set price. Not every state has such rules. In some places, utilities have stepped up to offer incentives for localized power generation, which costs them little when compared to building new plants. In short, the technology of small-scale wind generation is mature-now it’s time to make them pay.
WILL WIND POWER WORK AT YOUR SITE?
Before you buy, check the fundamentals: local wind resources, zoning, noise ordinances, and tax incentives.
WINPRO WP1000-3B
Designed and built in Japan, this vertical axis three-blade wind turbine starts spinning in winds under 3 mph, and begins to produce electricity at 3.6 mph. The installation calls for a single hollow core tower height of just 17’ with a generator capable of producing up to 1,000 watts of power. The turbine has a built-in automatic braking system to withstand winds up to 134 mph.
www.winpro.co.jp/english
NEW EDISON VERTICAL AXIS WIND TURBINE
The ideal choice for urban installations, vertical axis wind turbines (VAWTs) are designed to allow for wind to be caught at any angle or direction. The vertical design lends itself to areas with higher degrees of wind turbulence. Unlike horizontal axis wind turbines, VAWTs do not need to be placed as high in the air, which helps with zoning approvals. It is also nearly silent, which further adds to its appeal in urban settings. Available in 300W, 1.5 kW, and 3 kW systems.
www.newedisonenergy.com
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