Apartment Tower To Feature Integrated Wind Turbines

This 42-story apartment tower, under construction at Elephant and Castle in London, will feature a roof with an array of integrated wind turbines. The three turbines are each nine meters in diameter and are design to provide power the building’s lighting systems.

A Spherical Solar Cell From Japan: The Sphelar

A Kyoto-based company, Kyosemi, has created a spherical solar cell design. The “Sphelar” is a matrix of tiny, spherical-shaped solar cells, about 1mm in diameter. The spheres are designed to absorb sunlight at any angle, and therefore do not require motorization for tracking the sun. Because of their geometry, Sphelar cells even optimize the use of reflected and indirect light, …

12V Compact Fluorescents (15 or 23 Watt)

This is a meta-efficient bulb because it is a 12V compact fluorescent. Available in 15-watts, equal to a 60-watt incandescent (880 lumens), or 23-watts, equal to a 100-watt incandescent (1350 lumens). These lights have a warm color (2700K), operate at 14° to 130°, and measure 5.2"L x 2.1" diameter.