– 2 October 2014 –
The WINDUR project is in due course for almost one year now and so is the instalation, measurement and assessment campaign of the wind resource in urban environments.
This campaign is going on in Spain and Portugal. When designing the wind measurement campaign, engineers took into account several factors. The main one was the following: available wind resource at low heights. The main source to identify areas of potential interest as the national wind resource map of CENER (National Center of Renewable Energies). This map supplied tentative information of the wind resource throughout Spain at 10 meters height and it was very helpful for the experts to establish the final met mast locations. At the same time, several meteorological stations and masts were consulted to have a better estimation of the existing wind at low heights and contrast the measurements offered by the national wind map of CENER.
Other conditions, which have had a great influence on the site selection process, have been:
– Fair representation of various climatological conditions, pursuing to obtain at least one register in each of the climate types Spain offers that are exportable to the rest of Europe such as: oceanic climate, continental climate and Mediterranean climate.
– Achieving permission to perform the installations. Project members have been seeking for support from third parties, performing installations both in private (neighbourhood communities, private industrial buildings, business with high electrical consumption) and public buildings (city halls and, in general, public buildings belonging to the public administration).
– Compilation of areas belonging to various typologies and buildings to install the masts. Like the isolated and flat areas with some buildings grouped, the industrial parks in the surroundings of the cities are the best example, urban or periurban areas located between hills. Bearing in mind that elevated zones in the urban environment are the preferred ones to measure the available wind resource, those urban areas with obstacles, buildings and plain roofs.
Eight meteorological masts have been installed in the next locations: La Coruña, Cadiz, Valladolid, Huesca (two masts), Guadalajara and Rivas-Vaciamadrid in Spain, and Porto, in Portugal. The aim of installing two meteorological masts in Huesca is to have two measurement points close to each other and analyze the evolution and characteristics of the wind influenced by the most common obstacles of the urban environment and thus enabling the study the turbulent effects that apply in these kind of sites.
The instrumentation of the masts comprises anemometers, vanes, dataloggers… Additional features will be implemented in advanced phases of the project, such as sonic anemometers. These will be installed to measure the turbulence originated by the urban obstacles. These masts are 3.5 meters high and all of them are installed on building rooftops, whose heights go approximately from 4 meters up to 20 meters above the level of the ground.
The goal of the project is to perform the wind resource assessment in eight relevant positions across the Iberian Peninsula and evaluate the data registered to develop a wind resource assessment software tool for urban and periurban areas. This will eventually contribute to the development of the vertical axis wind turbine prototype.