Search results for "wind farm"

Elektrownie wiatrowe jako źródła konfliktów w krajobrazie

2014

Energy performances and life cycle assessment of an Italian wind farm

2008

Abstract Renewable energy sources are often presented as “ clean ”. A more correct definition is that they are “cleaner” than ones based on fossil fuel conversion. When the energy consumption and the environmental impacts related to the plant's life-cycle are considered, a more comprehensive assessment of these technologies can be carried out. This paper aims to evaluate the energy and the environmental performances of the electricity production of a wind farm. The impacts related to all the phases of the wind farm construction and operation have been compared to the environmental benefits due to the “green” electricity generation during its useful life. In other terms, the goal is to trace…

Towards farm-level health management of offshore wind farms for maintenance improvements

2015

This paper studies a conceptual architecture for health management of offshore wind farms. To this aim, various necessary enablers of a health management sys- tem are presented to improve reliability and availability while optimizing maintenance costs. The main focus lies on improving existing condition monitoring systems based on concepts of condition-based maintenance and relia- bility centered maintenance. A brief review of the rel- evant state-of-the-art is presented and gaps to be filled towards realization of such health management system are discussed.

Financial Measures for Supporting Wind Power Systems in Europe: A Comparison between Green Tags and Feed’in Tariffs

2008

Distributed Generation demonstrates to be able to significantly influence the electric power system, bringing considerable benefits to the quality of service and improving the energetic efficiency of the distribution network. In particular, in the last few years, Distributed Generation from renewable energy sources is considerably increased thanks to the many support policies promoted worldwide with the aim of facing the environmental issue and the problem of the permanent rise of prices of the fossil energy. In this contest, after a brief review on the financing strategies carried out in Europe in the last decade for promoting the recourse to renewable energy, the paper presents a comparis…

Design issues for wind farms grid tied Inverter

2017

In this paper the Authors give indications for the design of a grid tied Voltage Source Inverters (VSI) aimed to optimal use in energy conversion from wind source. In particular, the design of the inverter is more focused on the control system planning, with a particular glance on the grid synchronization problem. After the exposition of general issues concerning renewable energies and associated topics, the case of a grid tied inverter is considered and a methodology of design is sketched starting from the consideration of the DC side and also considering the power device losses, the protection issue against over voltages and over-currents, snubber circuits, heat sinks and, finally the con…

Miten tuulivoimaloiden rakentaminen vaikuttaa paikallisten tuulivoima-asenteisiin? : esimerkkinä Luhangan Latamäki

2015

Energiantuotantoa fossiilisilla polttoaineilla pyritään korvaamaan uusiutuvalla energialla ilmastonmuutoksen hillitsemiseksi. EU:n ja valtion tasolla asetettuihin päästövähennys-tavoitteisiin päästäkseen Suomi pyrkii muiden keinojen ohella lisäämään tuulivoimalla tuotetun sähkön määrää tuntuvasti. Tuulivoimatuotannon negatiiviset ympäristövaikutukset ovat paikallisia, minkä vuoksi paikallistason suhtautuminen tuulivoimaa ja tuulivoima-puistoja kohtaan on merkittävässä roolissa tuulivoimapuistohankkeiden etenemisen vauhdittamisessa tai hidastamisessa. Luhangan Latamäkeen rakennettiin Keski-Suomen ensimmäinen kuuden 3 MW turbiinin tuulivoimapuisto vuonna 2014. Paikallisten suhtautumista tuuli…

Propozycja wskaźnika oceny siły wizualnego oddziaływania farm wiatrowych

2016

Eletric vehicles impact using renewable energy

2015

In this moment, the principle topics for the modern world are the reduction of environmental pollution and the production of energy from renewable sources (for example photovoltaic system, wind farm, hydroelectric plants, etc.). This particular attention is determined by different reasons, in particular from the Kyoto Protocol, and from different problems as greenhouse effect, acid rain and climate change. The scope of this work is to study, for different years (1997-2013) in Italy, the production of electric energy from renewable and non-renewable. At a later stage, the attention will be on the consumption of the electric energy divided for different sectors. In particular, we study the po…

How is the spread of the Electric Vehicles?

2015

Many automotive manufacturers are investing heavily in Electric Vehicle (EV) design and manufacturing. Governments and other public sector bodies are making significant investments in the development of EVs and introducing various tax credits, incentives and subsidies. In addition, energy companies and other industries have set their sights on electric vehicles. In particular, EV development is being strongly fueled by consumer demand stemming from economic and environmental factors. The scope of this work is to present a representation of the spread of EVs in some European countries, in order to address an integration of green energy with recharge of EVs with particular attention for Italy…

Application of Monte Carlo technique to evaluate the power injectable on electrical grid by wind farms

2008

This paper is part of a research aimed at assessing the impact of wind generation on the transmission grid of Sicily, second among the Italian regions for wind power installed. To assess the maximum degree of wind generation penetrability in full compliance with the safe operation of the system, it seemed necessary to investigate the reports of contemporary winds and their territorial correlations when load assumes the peak or the minimum. Given the nature of the problem, it has been used a method of analysis based on the application of stochastic simulation techniques type Monte Carlo. In the paper, after describing the current state of wind energy generation in Sicily and development scen…