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» Differences between existing wind turbines and the Wind Tower.

WIND TUNNEL power generation, beyond the bounds of common sense

Differences between existing wind turbines and the Wind Tower.

Costly, Conventional Propeller-Type Windmills

Wind turbines are currently the main wind power generation system used in the world. Japanese local governments also promote wind turbines for to its "eco-friendly" image. However, it represents less than 1% of the total electricity production.

Due to its inefficient wind collection, wind turbines are far from being cost-efficient. It also causes noise pollution.

Large-scale wind farms using wind turbines originated in Europe, but their daily maintenance is difficult and trouble-shooting costly, causing some of them to cease their operations.

Totally Innovative WIND TOWER Power Generation

ZENA's WIND TOWER system also uses wind as an energy source just as wind turbines. Both systems produce no CO2.

However, WIND TOWER's wind capturing system is radically different from the wind turbines.

	WIND TOWER (TUNNEL)	Propeller-Type WINDMILL
Wind Capture	Wide surface captures wind, going into the tunnel	Only small blades capture wind.
Blade	Turbine blades installed underground, free from damage	Blades subjected to constant swinging motion
Lightning	Only the WIND TOWER is above ground.	Prone to lightning-related problems
Maintenance	The underground generator easy to maintain	Maintenance work done at high places, subjecting workers to danger
Cost Effectiveness	Plural generators produce much electricity	Cost efficiency low
Eco-friendliness	No rotating blades above ground cause no bird strikes	Causes bird strikes
Expandability	Can be used as restaurants, observation decks, heliports	Only used for power generation
Appearance	Any color chosen to fit the surroundings	No choice in color selection