Methodology for bulk approximation of the wind profile power-law exponent under stable stratification

Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. www.econstor.eu ESRI working papers represent un-refereed work-in-progress by researchers who are solely responsible for the content and any views expressed therein. Any comments on these papers will be welcome and should be sent to the author(s) by email. Papers may be downloaded for personal use only. Terms of use: Documents in The Impact of the North Atlantic Oscillation on Electricity Markets: A Case Study on IrelandJohn Curtis a,b , Muireann Á . Lynch a,b , Laura Zubiate c Abstract: The North Atlantic Oscillation (NAO) is a large-scale circulation pattern driving climate variability in north-western Europe. As the deployment of wind-powered generation expands on electricity networks across Europe the impacts of the NAO on the electricity system will be amplified. This study assesses the impact of NAO, via wind-power generation, on the electricity market considering thermal generation costs, wholesale electricity prices and wind generation subsidies. A Monte Carlo approach is used to model NAO phases and generate hourly wind speed time-series data, electricity demand and fuel input data. A least-cost unit commitment and economic dispatch model is used to simulate an island electricity system, modelled on the all-island Irish electricity system. The impact of NAO obviously depends on the level of wind capacity within an electricity system. Our results indicate that NAO phases can affect thermal generation costs by up to 8%, wholesale electricity prices by as much as €1.5/MWh, and that wind power generators receive on average 12% higher remuneration.

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Section: Methodsmentioning

confidence: 99%

The impact of the North Atlantic Oscillation on electricity markets: A case study on Ireland

2016

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“…ratio of the standard deviation to the mean) for both the shape and scale parameters were approximately 0.25. Because we are interested in the impact of NAO on wind turbine power generation we re-scaled the data from 10 metre height to 60 metres using a wind shear prole (Zoumakis and Kelessis, 1991) where V refers to wind speed and ω to roughness length for which we use the European Wind Atlas roughness class 1.5 (ω = 0.055 metres), dened as agricultural land with some houses and 8 metre tall sheltering hedgerows with a distance of approximately 1250 metres (Troen and Petersen, 1989). While newly installed wind turbines can be in excess of 100 metres, rescaling to 60 metres height allows for the fact that many installed wind turbines are substantially smaller.…”

Section: Methodsmentioning

confidence: 99%

Carbon dioxide (CO2) emissions from electricity: The influence of the North Atlantic Oscillation

2016

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Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. In recent years there has been an increasing deployment of wind-powered generation technology, i.e. wind farms, on electricity networks across Europe. As this deployment increases it is important to understand how climate variability will affect both windpowered and non-renewable power generation. This study extends the literature by assessing the impact of NAO, via wind-power generation, on carbon dioxide emissions from the wider electricity system. A Monte Carlo approach is used to model NAO phases, generate hourly wind speed timeseries data, electricity demand and fuel input data. A unit commitment, least-cost economic dispatch model is used to simulate an entire electricity system, modelled on the all-island Irish electricity system. Our results confirm that the NAO has a significant impact on monthly mean wind speeds, wind power output, and carbon dioxide emissions from the entire electricity system. The impact of NAO on emissions obviously depends on the level of wind penetration within an electricity system but our results indicate that emissions intensity within the Irish electricity system could vary by as much as 10% depending on the NAO phase within the next few years. The emissions intensity of the electricity system will vary with the NAO phase. Terms of use: Documents in

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“…The histogram (bar-graph in Figure 3) presents the diurnal variation of the percentage of central heating fuel consumed hourly in Thessaloniki during the cold part of the year. During the morning hours the increase of the SO 2 emission sources, in conjunction with the shallow mixing height and the stable stratification of the atmosphere result in higher SO 2 columnar values (12,28,29). During midday and until the early afternoon, columnar SO 2 is declining due to the decreasing of local sources and increasing of intensity of mixing and wind speed into the mixing layer (9,30).…”

Section: Instrumentationmentioning

confidence: 96%

A study of the total amount of sulphur dioxide over major Thessaloniki area using solar ultraviolet spectrophotometric measurements

Kelessis

Zoumakis

1993

Environmental Technology

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Solar Ultraviolet spectrophotometric measurements are used to provide estimates of the total columnar sulphur dioxide concentrations over urban, semirural and industrial areas of Thessaloniki in Northern Greece. The systematic observations of the SO 2 column represent an estimate of the impact of anthropogenic sulphur dioxide on the solar radiation received at the surface of the earth. The measurements span over a period of more than ten years, giving the longest presently available record of the total columnar SO 2 in Europe. Total columnar and ground-level SO 2 measurements display an annual variation with maximum concentrations to occur in the winter period of the year. Finally, by combining the simultaneous columnar and surface SO 2 measurements, we obtain estimates of the height of the polluted layer and mean residence time for sulphur dioxide over Thessaloniki basin.

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Methodology for bulk approximation of the wind profile power-law exponent under stable stratification

Cited by 22 publications

References 8 publications

The impact of the North Atlantic Oscillation on electricity markets: A case study on Ireland

The impact of the North Atlantic Oscillation on electricity markets: A case study on Ireland

Carbon dioxide (CO2) emissions from electricity: The influence of the North Atlantic Oscillation

A study of the total amount of sulphur dioxide over major Thessaloniki area using solar ultraviolet spectrophotometric measurements

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