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Benefits

Savings

The larger the turbine the more power it will produce. It is vital to match the turbine to the usage of the premises to get the best economic return. The table below shows the simple economic returns from a wind turbine on a yearly basis.

 

Model Units Output/Yr Cost/Unit Saving/Yr* CO2 Saving Typically Suitable For
400W 1000 20 cent 200 1.0 tonnes Small House
1kw 2500 20 cent 475 2.5 tonnes House
2kw 5000 20 cent 1000 5.0 tonnes House/Farm
3kw 7500 20 cent 1500 7.5 tonnes Farm/SME
5kw 12500 20 cent 2500 12.5 tonnes Farm/SME/Factory

 

*your electricity bill will be reduced by this figure yearly

Assumptions: 30% efficiency from the turbine annually
Cost/unit generated: 20c/unit
Premises Usage: 95%

To get an exact return from each turbine the following factors should be applied:
1. The exact cost/kwh you purchase power at from your utility
2. Any night/day rate prices
3. Efficiency from the turbine - windy sites will work up to 35% efficiency
4. Energy cost inflation of 5%/yr

Environmental

Because the turbines produce no pollution and uses wind power you will be offsetting pollution that would have been generated by your utility company. The unit also does not have batteries which are not environmentally friendly. The table above show the amount of CO2 that you will prevent from being released on an annual basis.

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