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Day-ahead bidding on energy markets - a basic model and its extension to bidding curve
Branda, Martin
Wind resources energy production is highly influenced by uncertain weather conditions. We provide several simple models for bidding on day-ahead energy markets, which take into account the uncertainty. The obtained optimal bids and bidding curve are based not only on the point prediction, but also on the forecasted distribution of generated energy. We relate the resulting problems to two-stage stochastic programs with simple recourse.
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Renewable energy sources in China: trends and issues
Šteg, Filip ; Stuchlíková, Zuzana (advisor) ; Vošta, Milan (referee)
The main goal of this thesis is to evaluate current status of renewable energy sources in China and to reveal current problems of this sector. In the first chapter, renewable energy sources are theoretically defined. In the second chapter, the whole energy sector of China is analysed with emphasis on the role of renewable energy sources, their share on primary energy consumption and their share in electricity production. The last chapter covers sector of wind energy in a detail. It analyses feed in tariffs or issues of energy grid. It also discusses economic profitability of wind power plants, their manufacture industry and overall future potential.
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Predictability of wind famrs operated by Amper-Market company
Farda, Aleš ; Rajdl, Kamil ; Štěpánek, Petr
This report contains an analysis of the electric energy production of wind power plants of the company Amper Market a.s. from the point of view of its predictability, with the main objective of determining the potential accuracy of hourly predictions of the power production. To calculate the analyzed predictions a regression forecasting model utilizing wind speed and direction in two height levels is used. The necessary values of these meteorological variables are obtained from three numerical weather prediction models – Aladin, EPS Aladin and IFS. The accuracy of the energy production predictions is optimized regarding the choice of suitable geographical points for obtaining outputs of the numerical models, the combine utilization of the models and individual setting of the regression model for the single power plants. The analysis was performed based on data from the period January 2013 to April 2014.
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Wind resource assessment for selected sites in the territory of the Czech Republic – first series
Hanslian, David
This set of studies analyses the wind conditions and expected wind power production at selected sites in the Czech Republic. At first, the calculation of wind conditions by VAS/WAsP 1, VAS/WAsP 2 and PIAP models is performed. Based on the comparison and analysis of model results, the generalized wind climate pertaining to the assessed site is estimated. The final results are calculated by WAsP model using this generalized wind climate. The expected wind power production of proposed wind turbine or wind farm is calculated as well as the map of simulated average wind speed and potential wind turbine production over the surrounding area. The uncertainty analysis is performed as well. This set consists of 7 partial reports.
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Wind resource assessment for selected sites in the territory of the Czech Republic – following series
Hanslian, David
This set of studies analyses the wind conditions and expected wind power production at selected sites in the Czech Republic. At first, the calculation of wind conditions by VAS/WAsP 1, VAS/WAsP 2 and PIAP models is performed. Based on the comparison and analysis of model results, the generalized wind climate pertaining to the assessed site is estimated. The final results are calculated by WAsP model using this generalized wind climate. The expected wind power production of proposed wind turbine or wind farm is calculated as well as the map of simulated average wind speed and potential wind turbine production over the surrounding area. The uncertainty analysis is performed as well. This set consists of 8 partial reports.
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Wind resource assessment for large wind farm in the territory of Poland
Hanslian, David
The expected energy production of proposed wind farm was calculated on the basis of local wind mast measurements. The study includes detailed analysis of measured wind data, correction of discovered inaccuracies and correction for long-term wind conditions (measure-correlate-predict analysis). The final calculation of wind energy production was performed by WAsP model. The uncertainty analysis was performed as well.
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Global Trends and their New Regional Challenges for Wind Energy Development on Example of Mexico
Cetkovský, Stanislav
Presented contribution gives an overview about recent trends in the wind energy development. For traditional countries with a b ig install capacity in wind energy, e.g. Europe, USA, China is typical nowadays limited opportunity for next wind energy investment, which is the reason why many investors and energy utilities are looking for new markets. Mexico seems to be a region with a great potential. Wind energy development could bring an opportunity for peripheral regions. It is no more valid that investment to wind energy is dependent on feed - in tariffs
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Hodnocení celkového ekologického dopadu využití jednotlivých alternativních zdrojů v ČR
Asociace pro využití obnovitelných zdrojů energie, Praha ; CityPlan spol. s r.o., Praha
Cílem práce je zevrubné posouzení alternativních zdrojů energie nejen s ohledem na jejich ekologické dopady, ale také na jejich dopady na celou společnost. Projekt obsahuje: Posouzení ekologického dopadu využití jednotlivých alternativních zdrojů v ČR pomocí bilančního lineárního modelu GEMIS; Vzorce chování člověka – nároky na energii současné a budoucí společnosti, pokud bude probíhat vývoj jako „business as usual“; adaptace člověka na proměnné životní podmínky; Zhodnocení potřeby energie pro neplýtvavý, leč kvalitní život; cesty ke snížení energetické náročnosti, potenciál úspor (proces dematerializace); Politická strategie a priority – jak dosáhnout udržitelné hladiny spotřeby energie v ČR v dlouhodobém měřítku; Synergie a antagonismy jednotlivých obnovitelných a alternativních zdrojů energie - dopady ve vztahu k udržitelnému rozvoji; Globální rozdělení energetických zdrojů a nejlepší cesta pro ČR v získávání energie ve střednědobém měřítku; Energetické a jiné krize (přizpůsobení energetického systému krizím; krize, přežití a zaměstnanost; adaptace člověka na krize).
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Závislost využitelného (vytěžitelného) potenciálu obnovitelných zdrojů energie na výkupních cenách energie: Přepočty charakterizující hodnocené technologie
ViP s.r.o., Praha ; Machková, Magdalena ; Willmann, Bedřich ; Baron, Karel ; Beneš, Josef ; Vajs, Stanislav ; Rosa, Jaroslav
Přepočty charakterizující hodnocené technologie: tepelné čerpadlo, malá vodní elektrárna o výkonu 100 kW, solární kolektor - ohřev TUV a přitápění, kogenerace na bázi spalování biomasy s výkonem do 100 kW, vytápění na bázi biomasy, kogenerace na bázi bioplynu s výkonem do 100 kW, vytápění na bázi bioplynu, větrná elektrárna, fotovoltaický systém pracující do sítě na úrovni NN, kogenerace na bázi využití bioplynu v palivových článcích o výkonu do 100 kW.
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