NB: Versions of some web browsers may not be compatible with this application. In such cases, please use the latest version of Google Chrome.

Wind Turbine Economic Assessment Tool (WiTEAT)


Mean wind speed (m/s)
Anemometer height (m)
Tower height (m)
Weibull K
Wind shear exponent
Turbulence factor
Air density factor
Turbine power curve

Wind speed
Power (kW)
0 m/s
1 m/s
2 m/s
3 m/s
4 m/s
5 m/s
6 m/s
7 m/s
8 m/s
9 m/s
10 m/s
11 m/s
12 m/s
13 m/s
14 m/s
15 m/s
16 m/s
17 m/s
18 m/s
19 m/s
20 m/s
21 m/s
Turbine power rating (kW)
Turbine lifetime (years)
Machinery capital costs, £
Turbine blades
Turbine tower
Turbine transformer
Turbine transportation
Other

Grant assistance
Total machinery cost
Building and infrastructure capital costs, £
Site preparation
Digging tower foundation
Transformer cabling
Substation cabling
Grid connection
Buildings
Control system
Consultancy/Licensing/Permits
Other

Grant assistance
Total building cost
Overhead costs, £

Initial year overhead costs, £
Labour
Regular and casual
Management
General insurance
Transport
Water
Assurances
Professional fees
Testing fees
Office and telephone
Miscellaneous
Rent

Total initial year overhead cost
Additional cost information
Building depreciation duration (years)
Machinery depreciation duration (years)
% Debt (0 - 100%)
Debt repayment term (years)
Prices
p/kWh
Feed-in-tariff (FIT)
Export tariff for electricity

Money rates
Debt interest rate (0.01 - 100%)
Inflation rate (0 - 100%)
Cashflow discount rate (0 - 100%)
Tax rate (0 - 100%)
MIRR finance rate (0 - 100%)
MIRR reinvestment rate (0 - 100%)
Select indicator

A summary of your results will be displayed here after executing the application. The application is executed by clicking the 'Run/Execute' button on the left.
A graphical summary income statement of your results will be displayed here after running the application. The application is run by clicking the 'Run/Execute' button in tab 'Run application'.