Performance of Wind Projects Versus Pre- Construction Estimate - India Apoorv Vishnoi [email protected] Energy Sales Manager, India
Performance of Wind Projects Versus Pre- Construction ... · Performance of Wind Projects Versus Pre-Construction Estimate - India Apoorv Vishnoi [email protected] Energy
Aug 03, 2018
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Performance of Wind Projects Versus Pre-Construction Estimate - India
Apoorv Vishnoi
Energy Sales Manager, India
Page Internal use © Vaisala
Vaisala Overview Vaisala is a weather company started by Finnish
Professor Vilho Väisälä in the 1930s
1500+ employees, 30 offices worldwide
Primary business areas
Weather (includes Energy)
Controlled Environments
Vaisala Energy services
Measurement systems (incl.. Triton, global lightning data)
Information services (incl.. Forecasting, Assessment)
Over 250 wind due diligence assessments
Over 50 solar due diligence assessments
2
Page Internal use © Vaisala
Risks
1. External Factors
2. Ongoing learning
3. Annual variability
4. Portfolio
5. Future wind turbines
Page Internal use © Vaisala
Wind Farm Year Energy Deviations - India
09/06/2016 4
0
5
10
15
20
25
30
35
0 2 4 6 8 10
Ne
t C
ap
acity F
acto
r (%
)
Projects
Pre-constructionestimate by thirdparties
Vaisala's postoperationreassessment
Page Internal use © Vaisala
Wind Farm Year Energy Deviations- Vaisala
09/06/2016 5
Page Internal use © Vaisala
Wind Farm Year Energy Deviations- US & others
09/06/2016 6
σ = 8.8% σ = 10.6%
μ = +0.1%
95% conf int (n=115) 95% conf int (n=24)
Page Internal use © Vaisala
NNRP-D ERA MERRA
Wind Speed from
April 2015 to March 2016
Page Internal use © Vaisala
Risks Review
1. External Factors
2. Ongoing learning
3. Annual variability
4. Portfolio
5. Future wind turbines
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