The Swift Wind Turbine is a building-mountable unit that developers say provides a quiet, cost-effective renewable energy source for domestic, community, and industrial use. Each Swift, from Cascade Renewable Energy Solutions, Grand Rapids, Mich., can provide about 2,000 kWh/yr in areas with above average or favorable winds (class 3 or higher), which equates to about…
Small turbine boasts 99% efficient generator
Evance (formerly Iskra Wind Turbines) has launched a new 5kW wind turbine with what it says is a significant advance in efficiency, reliability, durability, and corrosion resistance. It also comes with lower installation costs than previous models. The Iskra R9000 is intended for schools, farms, rural homes, and light commercial applications. The turbine, an evolution…
Vertical axis turbine works for small business
Not all wind turbines are megawatt units. Two designs from HelixWind, San Diego, are said to work in low-wind speeds common around residential areas and small commercial businesses. The developer says its Savonius-turbine design (a vertical axis windmill) catches wind from all directions creating smooth torque to spin an electric generator. Mounted up to 35-ft…