Podcast
Questions and Answers
What type of forecasts are required for risk management in wind energy?
What type of forecasts are required for risk management in wind energy?
How is wind power variability affected by the spatial locations of wind farms?
How is wind power variability affected by the spatial locations of wind farms?
What is the purpose of stepwise variable selection?
What is the purpose of stepwise variable selection?
In stepwise variable selection, how are variables added or removed from the model?
In stepwise variable selection, how are variables added or removed from the model?
Signup and view all the answers
Which type of changes in wind power are typically analyzed when considering power system operations?
Which type of changes in wind power are typically analyzed when considering power system operations?
Signup and view all the answers
What was found to be the best in point forecasting based on the text?
What was found to be the best in point forecasting based on the text?
Signup and view all the answers
What is considered problematic for both electricity system operators and wind farm operators?
What is considered problematic for both electricity system operators and wind farm operators?
Signup and view all the answers
What problem does stepwise variable selection help to address?
What problem does stepwise variable selection help to address?
Signup and view all the answers
Which statement best describes the starting point of stepwise variable selection?
Which statement best describes the starting point of stepwise variable selection?
Signup and view all the answers
In the context of wind energy density forecasting, what is the purpose of ensemble predictions?
In the context of wind energy density forecasting, what is the purpose of ensemble predictions?
Signup and view all the answers
What is the primary consideration when selecting variables using a stepwise approach?
What is the primary consideration when selecting variables using a stepwise approach?
Signup and view all the answers
Why is it important to eliminate some variables in stepwise variable selection?
Why is it important to eliminate some variables in stepwise variable selection?
Signup and view all the answers
What factor caused a high maximum error of 5500 MW in intraday wind power prediction for Germany?
What factor caused a high maximum error of 5500 MW in intraday wind power prediction for Germany?
Signup and view all the answers
Which evaluation method assesses the probabilistic correctness of forecasts?
Which evaluation method assesses the probabilistic correctness of forecasts?
Signup and view all the answers
What aspect of the forecast quality assesses the ability to concentrate distribution?
What aspect of the forecast quality assesses the ability to concentrate distribution?
Signup and view all the answers
In the calibrated wind speed ensemble predictions, what does 'µtENS +k|t' represent?
In the calibrated wind speed ensemble predictions, what does 'µtENS +k|t' represent?
Signup and view all the answers
What could have been avoided with extreme event correction according to the text?
What could have been avoided with extreme event correction according to the text?
Signup and view all the answers
What is the main assessment measure for evaluating the overall quality of forecasts?
What is the main assessment measure for evaluating the overall quality of forecasts?
Signup and view all the answers
What method was used to convert 51 calibrated wind speed ensemble members into 51 wind power scenarios?
What method was used to convert 51 calibrated wind speed ensemble members into 51 wind power scenarios?
Signup and view all the answers
What type of forecast benchmark is compared to evaluate wind power predictions?
What type of forecast benchmark is compared to evaluate wind power predictions?
Signup and view all the answers
Which parameter in the square root of wind speed ensemble forecast is denoted by 'bk'?
Which parameter in the square root of wind speed ensemble forecast is denoted by 'bk'?
Signup and view all the answers
What was evaluated using ARFI-GARCH from 1995 to 2003 and calibrated ensembles from 1997 to 2003?
What was evaluated using ARFI-GARCH from 1995 to 2003 and calibrated ensembles from 1997 to 2003?
Signup and view all the answers
What does 'ENSS' represent in the context of the text?
What does 'ENSS' represent in the context of the text?
Signup and view all the answers
Which approach used historical forecasts/verifications, kernel smoothing, and calibration jointly estimated?
Which approach used historical forecasts/verifications, kernel smoothing, and calibration jointly estimated?
Signup and view all the answers
What are the main types of variability that need to be described when modeling daily wind speed data?
What are the main types of variability that need to be described when modeling daily wind speed data?
Signup and view all the answers
Which wind farm has the highest annual homes equivalent based on its MW capacity?
Which wind farm has the highest annual homes equivalent based on its MW capacity?
Signup and view all the answers
Which wind turbine model was installed at Bears Down in Cornwall?
Which wind turbine model was installed at Bears Down in Cornwall?
Signup and view all the answers
When fitting AR-GARCH models to the square root of wind speed, which parameter represents the mean?
When fitting AR-GARCH models to the square root of wind speed, which parameter represents the mean?
Signup and view all the answers
For wind speed density construction, which types of distribution are typically used?
For wind speed density construction, which types of distribution are typically used?
Signup and view all the answers
What data transformation was applied before fitting AR-GARCH models to the wind speed data?
What data transformation was applied before fitting AR-GARCH models to the wind speed data?
Signup and view all the answers
