Various vertical axis wind turbines from 1kW up to 55kW. All turbines based on real wind turbine projects. Use the small tubines to offset your maintenacne costs or use the larger turbines for some regular monthly income. Vertical Axis Wind Turbine 1kW Price: $6000 Income per hour: $35 Maintenance: $2 day Vertical Axis Wind Turbine 5kW Price: $15,000 Income per hour: $175 Maintenance: $4 day Vertical Axis Wind Turbine 8kW Price: $24,000 Income per our: $280 Maintenance: $10 day Vertical Axis Wind Turbine 20kW Price: $200,000 Income per hour: $700 Maintenance: $1,000 day Vertical Axis Wind Turbine 55kW Price: $550,000 Income per hour: $1925 Maintenance: $2,500 day