wind resource Articles
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Vortex identification in wind resource assessment: Application of a new vortex criterion for an improved wind resource analysis
A pertinent task during wind power project development studies is the post-processing analysis of the wind resource simulation results. There is widespread interest in extracting more information from typical commercial software – like WindSim, OpenWind, Meteodyn, WAsP – at a minimal cost during the prospection and/or the development stage of some wind power project. The current paper ...
By VIE Brazil
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Tidal influence on offshore wind fields and resource predictions
The rise and fall of the sea surface due to tides effectively moves an offshore wind turbine hub through the wind shear profile. This effect is quantified using measured data from three offshore UK sites. Statistical evidence of the influence of tide on mean wind speed and turbulence is presented. The implications of this effect for predicting offshore wind resource are outlined.Keywords: Tidal, ...
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Vortex identification for the study of atmospheric flow: a new vortex criterion applied to wind resource assessment
Vortex identification is a non-consensual point of discussion among fluid mechanics researchers. Classical criteria such as Q and delta are hereby confronted with a new definition. A pertinent task for wind power project development studies is the post-processing analysis of the wind resource simulations in order to improve the project design. There is a large interest in extracting more ...
By VIE Brazil
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Forecasting Exercise - Case Study
Objective: In 2005, AEE promoted a project related to the prediction of wind farm energy production, known as the Prediction Exercise. The project was financed by AEE and by companies that own the parks, as well as by a subsidy from the PROFIT programme of the Ministry of Education and Science. The Prediction Exercise consisted of a comparative Round Robin of ...
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Bull Creek Wind Project - Case Study
422,472 MWh: Low Emission Contribution 29MW: Generation Capacity 17: Turbines installed Bull Creek Wind Project, in western Alberta, represents the first of Windlab’s projects to reach operations in North America. The site was first identified by Windlab in 2007 and the land was quickly secured. Windlab sold the project to BluEarth Renewables in 2011, who then continued the ...
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Prospects of wind energy in India
This paper is a modest attempt to study the growth and performance of wind farms in India. India occupies the 5th place in the world in wind energy generation after Germany, the USA, Denmark and Spain, and has an installed capacity of more than 2485 MW of wind energy, comprising both commercial projects (2418 MW) and demonstration projects (65.415 MW) as of 31 March 2004. This paper discusses the ...
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Measuring Offshore Wind Resources
To select the right offshore wind site, estimate the future energy output of a wind farm, and determine the best layout for the turbines, project developers must conduct wind resource assessment (WRA) campaigns on site. This is a critical phase of the successful development of wind farms. WRA campaigns on terrestrial sites have traditionally been performed using meteorological towers equipped ...
By NRG Systems
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Wind energy development in China: institutional dynamics and policy incentives
China is endowed with rich wind resources. During the early 1990s, China's wind power capacity grew at an average annual rate of 50%. Total installed wind farm capacity reached 344.8 MW by 2000. However, the pace of wind power development has slowed down in recent years. Through economic analysis and identification of the institutional barriers that led to the rise and fall of wind energy ...
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Pricing mechanisms for offshore wind electricity in EU member states
The aim of the study was to evaluate the pricing mechanisms for offshore wind electricity in those EU Member States (MS) possessing an important offshore wind resource and, on this basis, to determine the economic scenario faced by potential investors in the sector. The economic and energy policy framework of each MS was reviewed to establish the main factors determining the final price accorded ...
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What is the Impact of Seabed Conditions?
Eirik Byklum, Statoil, has commented that: “developers have learnt the hard way that poor conditions on the sea bed can have a very negative impact – they are much more aware of this and its cost implications” How important are seabed conditions for your offshore wind business? Alongside distance to shore, water depth, and wind conditions, seabed consistency has a major ...
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Analysis of vertical wind shear in the Southern Great Plains and potential impacts on estimation of wind energy production
This paper describes the analysis of near-surface wind speeds in Western Oklahoma. The goals of this research are to characterise the nocturnal low-level jet (LLJ) in the region, and to assess the impact wind variability, vertical shear and the LLJ on wind energy calculations. Results show the seasonal variability in wind characteristics as well as in the vertical wind shear, and also illustrate ...
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Wind Tops 10 Percent Share of Electricity in Five U.S. States
A new picture is emerging in the U.S. power sector. In 2007, electricity generation from coal peaked, dropping by close to 4 percent annually between 2007 and 2011. Over the same time period, nuclear generation fell slightly, while natural gas-fired electricity grew by some 3 percent annually and hydropower by 7 percent. Meanwhile, wind-generated electricity grew by a whopping 36 percent each ...
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Power curve measured and verified – Case Study
In 2010 RSE SpA (Energy System Research Inc.) within a Program Agreement with the Italian Ministry of Economic Development started a measurement campaign on a Libellula wind plant installed in Tuscany. The campaign lasted 1 ½ years and during this time RSE measured the turbine’s power curve following the requirements of the relevant IEC Standard ( EN 61400-12-1 – EN 61400-2). ...
By Aria srl
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Taonan case study
Working to decarbonise China's energy future Located in Taonan, Jilin Province, north east China, this 49.3 MW grid connected wind farm demonstrates the economic viability of wind power technology in a region where, until now, it has been seen as marginal. The project generates over 100,000 MWh of electricity per annum, and delivers greenhouse gas emission reductions equal to 92,508 tCO2e per ...
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UK offshore load factors accelerate on tech breakthroughs: 10-year study
UK offshore load factors accelerate on tech breakthroughs: 10-year study The Crown Estate’s Offshore Wind Operational report 2015 shows there has been a gradual increase in the load factor for the UK fleet since 2004 on the back of more productive wind turbines, wind farms being built at windier sites and improved plant availability. The Crown Estate manages UK sovereign assets such as ...
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Size optimisation of hybrid wind-PV power generation systems for remote rural areas
Electrical power generation with renewable energies, such as wind and solar, plays an important role in the electrification of remote rural areas. Since there are always seasonal and synoptic variations in wind and solar resources, a hybrid system, consisting of both wind and solar energy, may be more reliable and economical than a single energy system: this is because either energy can ...
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Using Lidar for WRA Campaigns: Your Questions Answered (Part I)
In the course of conversations with wind developers new to Lidar technology, a number of questions seem to come up regularly. In this and future blog posts, I will attempt to answer these questions in some detail to benefit others who might be pondering them as well. Two very practical questions have to do with how WINDCUBE® Lidars might affect overall wind resource assessment (WRA) campaign ...
By NRG Systems
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Prospect of offshore wind energy development in Japan
In Japan, the cumulative capacity of wind turbine generation systems on land has increased steadily in recent years. To install a large number of wind turbines has inherent problems such as shortage of suitable land, and inadequate infrastructure such as power cables and roads. The necessity for development of offshore wind turbine generation systems has been recognised based on the above ...
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The economics of wind energy within the generation mix
With more than 15,000 plants of different capacity ranges, Germany has become the world's No. 1 in generating electricity from wind power, covering around 4% of the electricity requirements at home. This is due on the one hand to the successful promotion by the Renewable Energy Act (EEG) and, on the other hand, to the tax breaks from loss allocation and depreciation. During low-load periods, load ...
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An integrated assessment for wind energy in Lake Michigan coastal counties
The benefits and challenges of onshore and offshore wind energy development were assessed for a four‐county area of coastal Michigan. Economic, social, environmental, and spatial dimensions were considered. The coastal counties have suitable wind resources for energy development which could contribute toward Michigan's ten percent renewable energy standard. Wind energy is cost‐effective with ...
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