Forecasting power output of PV systems Market overview, technical solutions and implementation prop
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Inclou dades d'ús des de 2022
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hdl:2099.1/18982
Correu electrònic de l'autoralberto.gonzalez.mongmail.com
Realitzat a/ambBuilding Energy
Tipus de documentProjecte Final de Màster Oficial
Data2013-07
Condicions d'accésAccés restringit per decisió de l'autor
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Abstract
The PV industry is growing worldwide, more grid-connected PV plants are injecting electricity
to the grid and forecasting systems are required, wheter for system operators to control the
stability of the grid than for market operators to cover the power demand. The present work is
a comprehensive overview of PV- based forecasting systems, separated in six chapters, including
the state-of-the-art, a market overview, two national case studies and a proposal for a new low
cost solution. The development of this thesis was made within an italian company, called Building
Energy, currently expanding its development pipeline all around the world.
The rst chapter introduces the importance of forecasting the power generated from renewable
sources and Building Energy as a company. Subsequently, the second chapter is a compilation
of the state-of-the-art, with particular attention to Numerical Weather Prediction NWP models,
used for larger forecast ranges and with more utility to the two case studies analyzed in the next
chapters. The third chapter correlates the previous ndings to services available in the industry,
a market overview including two italian, one dutch, one italian/swiss and one american weather
providers, their speci c quotations and infomation that a manager type reader would appreciate.
In Chapter 4 and 5, two national cases are studied: Italy and South Africa. The choice of reviewing
these two countries was based on the Building Energy projects. The italian case, more complex
in terms of the regulatory framework and electricity market, required a deeper economic analysis.
The purpose was to clarify wheter it is convenient or not, to a single PV power producer, to
change energy trader and assume its own forecasting, as a consequence of high unbalancing fees.
It was found that in certain conditions, perform a better owned forecast, is economically more
convenient. For the South African case, the analysis was straightforward, depending only on the
authoroties regulations.
Finally, the last chapter presents a proposal for a new low cost forecast system, based on free online
meteorological data and the implementation of an Articial Neural Network ANN. It describes the
system, indicating the main components and tools which have been tested. Its implementation is
currently in evaluation process in the company.
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MSc SELECT thes ... ems - Alberto Gonzalez.pdf | Report | 6,749Mb | Accés restringit |