DELPHI (DEtector with Lepton, Photon and Hadron Identication) is a detector for e + e physics, designed to provide high granularity o v er a 4 solid angle, allowing an eective particle identication. It has been operating at the LEP (Large Electron-Positron) collider at CERN since 1989. This article reviews its performance.(To be submitted to Nucl. Inst. and Meth.) ii

We consider wind power forecasts based on a number of different meteorological forecasts originating from three different global meteorological models. Wind power forecasts based on these meteorological forecasts have fairly similar performance. However, in the paper, we show that the wind power forecast errors are relatively uncorrelated. For this reason, we can combine the forecasts and obtain a final forecast which performs better than any of the individual forecasts. Optimal weights are found based on the bias of the individual forecasts and the variance–covariance matrix of the individual forecast errors. In the paper, we show that quite significant improvements can be obtained using only a few different meteorological forecasts. Copyright © 2007 John Wiley & Sons, Ltd.

International audienceThis paper presents the objectives and an overview of the results obtained in the frame of the ANEMOS project on short-term wind power forecasting. The aim of the project is to develop accurate models that substantially outperform current state-of-the-art methods, for onshore and offshore wind power forecasting, exploiting both statistical and physical modeling approaches. The project focus on prediction horizons up to 48 hours ahead and investigates predictability of wind for higher horizons up to 7 days ahead useful i.e. for maintenance scheduling. Emphasis is given on the integration of high-resolution meteorological forecasts. Specific modules are also developed for on-line uncertainty and prediction risk estimation. An integrated software platform, 'ANEMOS', is developed to host the various models. This system is installed by several end-users for on-line operation at onshore and offshore wind farms for prediction at a local, regional and national scale. The applications include different terrain types and wind climates, on- and offshore cases, and interconnected or island grids

No abstract

No abstract