First opened in 1952, this airport has been renamed twice in the last couple of years; you may find that people and publications still refer to it by its previous names of Johannesburg International Airport or Jan Smuts. It is also known by the abbreviation ORTIA.
1 For example, the equipment cost for a 10 kW wind turbine costs roughly $40,000, while a 100-kW turbine can cost more than $350,000.2  According to Bergey.com, the average wind turbine can cost $48,000 to $65,000 to install. 3  The equipment costs alone will be around $40,000. For example, the equipment cost for a 10 kW wind turbine costs roughly $40,000, while a 100-kW turbine can cost more than $350,000.
depending on which factors are included estimates for the cost of wind power vary wildly lazard claims the cost of wind power ranges from $ 37 to $ 81 per megawatt hour while michael giberson at the center for energy commerce at texas tech university suggests it s closer to $ 149ll estimates for wind power include the cost of purchasing capital and paying for operations and maintenance o m of wind turbines for the studies we examined capital costs ranged from $ 48 to $ 88 per megawatt hour while o m costs ranged from $ 9 8 to $ 21 per megawatt hour