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A Product by

WinDForce Management Services Pvt Ltd.

A realistic, integrated and

independent wind simulation

Package

Highlights

§An integrated system used for

calculating the Annual Energy Production

(AEP) of a Wind Turbine/ Windfarm

Based on atmospheric boundary layer

theory and uses intricate and proprietary

mathematical/ numerical techniques to

predict energy yield with greater accuracy.

Why WinDForcer?

•Dependency of conventional WRA

models on other packages for generating

input files?

•Final Output depend upon resolution of

geo data

•High Processing time of many hours for

creation of Resource Grid?

•Highly cumbersome?

…….. WinDForcer is the NextGen

solution to WRA

Crisp answers which makes it a

Go Minimized runtime

No dependency on other softwares

Easily accessible globally

Report Generation at single click

Flexibility and client customization

Ease in data handling and data modeling

Realistic Assessment

Varied outputs

Comprehensive & Customizable Reports

Key Features Web based application

Can be remotely accessed

No other software or platform required

User friendly computational interface

Efficient computing leading to run time of up to 30

minutes

In-built database on WTG

Detects site complexity and chooses appropriate

computational methods accordingly

Examines Missing/absurd/discontinuous values and

produces data summary

Follows holistic approach while treating the measured

wind speed data for appropriate wind shear value.

Adjust wind flow at individual turbine locations

Conduct Uncertainty analysis

“

Our Unique Value Proposition

Why WinDForcer?

Terrain

Classifying

capability § The package has the capability to recognize site

terrain and to classify it as flat, moderately complex and

complex. The model selects an appropriate route to

computation.

1

Integrated

Software

Architecture § Conventional software packages highly cumbersome

§ Conventional softwares require tab files and multitude of

programs to run.Large project may require waiting period of

for 12 hours or more for the resource grid to be prepared.

§ WinDForcer is an integrated program that gives results within

15 minutes of inputting the data.

2

Data

Synthesis

§ We all know that wind speed data received from a

measurement can be either has erroneous data or missing

data.

§ Under most conditions, WinDForcer is able to fill the

missing data, through the analysis of the time series.

3

Comprehensive

&

Customizable

reports § The program generates varied kinds outputs in CSV and

XL format including a comprehensive report in PDF.

4

User Friendly

Interface § WinDForcer has a user friendly interface with interesting

visualization and graphics.

§ The software can be customized as per the client, if

requested.

5

Module of WinDForcer :

AEP Module with Uncertainty

Product list of the Module

Provide Annual wind speed of each WTGs

Hourly mean wind speed values of each month

Wind shear profile of each month

Hourly values of energy generation for each

WTGs.

Peak energy generation values of each WTGs

Inter-turbine distances, elevation, wind speed &

wind roses graphs etc.

Uncertainty on wide range of component i.e.

historical wind speed, anemometry, topographic

etc.

Gross AEP and Net AEP

Net PLF - P50, P75, P90 and P95 values

Framework

Create Root Project and

sub-root project (if required) Upload WTGs details

Detects whether site is

flat or complex and

accordingly select

appropriate computational

method

Calculate

distance

between each WTGs

The system automatically

calculate elevation of

respective WTGs and

gives a GUI of the site

Upload wind mast details Upload data at two

sensors height (m)

Annual Energy

Calculation and

Uncertainty Analysis

Report

Generation

The system automatically

calculate elevation of

respective WTGs and

gives a GUI of the site

Report outlook

Gross and Net PLF

Google Site Map

Wind Speed Profile

Uncertainty Values

Wind Rose

Monthly Generation

What derives accurate wind

predictions ?

Accurate wind

predictions

Reduces

Uncertainty and

risks

Bankable wind

report

Wind Resource Assessment

More accurate wind

predictions leads to less uncertainty

and risks

A reduction of the error margin up to

7-10 % (compared to 12-15 % for P90),

can reduce a project’s cost of funds by

0.5-0.75% (The Economist 2010).

This reduction in cost of funds

would lead to an even higher impact on

ROE

“

Our results are close to realistic

figures

Comparative analysis between Generation from WinDForcer v/s other conventional models

Non-complex Terrain

Site Name S001 S002 S003 S004

State MP MP MP MP

Power Curve IWL-2.0 S-97 V-87 G-97

Conventional Models 25.4% 28.9% 27.8% 41.0%

WinDForcer 19.2% 29.7% 27.9% 36.8%

Site Name S005 S006 S007

State GJ GJ GJ

Power Curve V-87 V-87 E-53

Conventional Models 25.2% 30.9% 23.7%

WinDForcer 25.4% 32.7% 26.5%

Site Name S008

State TN

Power Curve S-97

Conventional Models 33.6%

WinDForcer 33.5%

Comparative analysis between Generation from WinDForcer v/s other conventional models

Complex Terrain

Site Name S009 S010 S011 S012

State MH MH MH MH

Power Curve K-110 K-110 LetWinD-77 IWL-2.0

Conventional Models 28.5% 27.3% 36.7% 27.0%

WinDForcer 23.8% 23.9% 32.6% 25.8%

Site Name S013 S014

State KR KR

Power Curve S-97 S-97

Conventional Models 35.5% 42.0%

WinDForcer 30.1% 41.9%

“

Site Name S015 S016 S017 S018 S019 S020

State RJ RJ RJ RJ RJ RJ

Power Curve S-66 S-66 S-66 S-88 RRB-600 S-66

WinDForcer 19.19% 15.80% 19.61% 19.32% 21.95% 20.79%

Actual Generation 19.34% 17.07% 19.88% 17.90% 20.50% 20.15%

Test : A case of Rajasthan, India

Actual v/s Energy Generation from WinDForcer

“

Test Case : Actual Generation v/s Energy Generation from WinDForcer

Monthly generation profile of S018 (each WTG)

Monthly Energy Generation (GWhr)

Actual Generation

Energy Generation from WinDForcer

0.00

0.20

0.40

0.60

0.80

1.00

April

May

June

July

Aug

…

Sep

…

Oct…

Nov…

Dec…

Jan

…

Feb…

Marc

h

0.00

0.20

0.40

0.60

0.80

1.00

April

May

June

July

August

Septe

mber

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h 0.00

0.20

0.40

0.60

0.80

1.00

April

May

June

July

August

Septe

mber

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h

0.00 0.20 0.40 0.60 0.80 1.00

April

May

June

July

August

Septe

…

Octo

ber

Novem

…

Decem

…

January

Febru

ary

Marc

h 0.00

0.20 0.40 0.60 0.80 1.00

April

May

June

July

August

Septe

…

Octo

ber

Novem

…

Decem

…

January

Febru

ary

Marc

h

Site Name S018

State RJ

Power Curve S-88

WinDForcer 19.32%

Actual Generation 17.90%

“

Test Case : Actual Generation v/s Energy Generation from WinDForcer

Monthly generation profile of S018 (each WTG)

0.00 0.20 0.40 0.60 0.80 1.00

April

May

June

July

August

Septe

mber

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h

0.00

0.20

0.40

0.60

0.80

1.00

April

May

June

July

August

Septe

mber

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h 0.00

0.20

0.40

0.60

0.80

1.00

April

May

June

July

August

Septe

mber

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h

0.00 0.20 0.40 0.60 0.80 1.00

April

May

June

July

August

Septe

m…

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h 0.00

0.20 0.40 0.60 0.80 1.00

April

May

June

July

August

Septe

m…

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h 0.00

0.20 0.40 0.60 0.80 1.00

April

May

June

July

August

Septe

mber

Octo

ber

Novem

ber

Decem

ber

January

Febru

ary

Marc

h

Monthly Energy Generation (GWhr)

Actual Generation

Energy Generation from WinDForcer

Site was planned with 1.65 MW WTG, the annual

generation projected by various softwares was 49

GWhr/year corresponding to PLF of 34%

A wind-farm problem resolved !!

After the WPP was implemented, it

was found it was giving a PLF of

22-23%.

WinDForcer reassessed the site,

the generation is predicted with

PLF of 24.12% at P50 which is

very close to actual PLF.

Post Implementation- Energy Generation

“

Features Sub-features WinDForcer Other

conventional

models

System

architecture

Cloud based and web application √ ×

No Dependency on other software's/platform √ ×

Greater flexibility and Client customization √ ×

Efficient runtime of 30minutes for one project √ ×

Database

Management

System

Buit-in database of Wind turbines and Power curves √ √

Built-in database of digital elevation model and

orography √ ×

“

Data Handling Consider multiple turbine types and height × √

Define wind sector √ √

Adjust wind flow at individual turbine locations √ √

Display ground heights, terrain contours, slopes and background images √ √

“

Data Modeling Examine Missing/absurd/discontinous values √ ×

Follows holisitc approach while treating absurd/missing values i.e. fill

data with preceding and suceeding years, treat with appropriate wind

shear value

√ ×

Correlate overlapping time series data √ √

Employ directional correlation plots and statistics √ √

“ Optimise your windfarm Optimise layout for minimum turbine spacing critieria × √

Optimise for energy yield × √

Know how the results

are calculated

Provide unrivalled model transparency √ ×

See how the inputs are used to calculate the results √ ×

“ Energy

Production

Uses site corrected power curve based on elevation √ ×

Create wind roses and frequency distributions √ √

Consider the effect of turbulence and terrain √ √

Employ Eddy Viscosity and modified PARK wake models √ √

Provide Uncertanity on each parameters (i.e. Historical wind speed,

anemometry, topographic)

√ √

Conduct Uncertainity analysis (P50, P75, P90 and P95) √ ×

“

Output

options

Annual wind speed of each turbines √ √

Provide wind shear exponent for every hour √ ×

Provide mean dinural profile of windspeed for each month √ ×

Provide Hourly mean wind speed for windfarm √ ×

Provides hourly values of power generation for each turbine √ ×

Provides peak power generation of each turbine √ ×

Produce Gross and Net AEP √ √

Produce Uncertainity values on wind speed and energy production (both) √ ×

Generate project assignment parameters √ ×

Generate windfarm performance parameters and comprhensive report √ ×

WinDForce Management Services Pvt. Ltd.

11th Floor, Vatika Professional Point,

Golf Course Ext. Road, Sector - 66,

Haryana - 122002, India

Mobile: 00-91-9650581122

E-mail: sankalp@windforce-management.com

Web: www.windforce-management.com

THANK YOU

WinDForce Management Services Pvt. Ltd.