I think have invented the worlds cheapest and simplest form of wind turbine which can produce 4.9 amps at almost 300 rpm.To my surprice i have not been able to find a buyer.

sam . - Description added by: INDIA.

Appliances, whether domestic, commercial or industrial, are consumers of electricity. A low carbon economy requires that these appliances be very energy efficient, both in use and when on standby. However, there are embedded carbon costs in appliances, from their manufacture and transport. These also needs to be considered when choosing an appliance. - Description added by: David Lockie