Welcome to the home page of the Zephyr collaboration.
The Zephyr project was developing the next generation in short-term forecasting. Risų's Prediktor and the Wind Power Prediction Tool WPPT of the IMM (Informatics and Mathematical Modelling at DTU) and ENFOR have run at all major Danish utilities since 1994. Zephyr/WPPT is in use right now. Both models are commercial. Zephyr/Prediktor, especially in its CleverFarm incarnation, is the tool of choice for small installations without data access. For a utility grade system including upscaling, Zephyr/WPPT is the tool with the longest operational experience in the world.
Please refer to this fact sheet on Zephyr/Prediktor, the short introduction to Zephyr/WPPT, or start with the Zephyr flyer. The more technical details can be found under Publications.
What's New
Commercial contracts with Zephyr/WPPT are now handled by a spin-off of DTU, ENFOR. Main figures behind ENFOR are the long-term developers of WPPT and related products such as heat load prediction.
Installation at Hydro Tasmania is complete. For the moment, we only predict for one wind farm, but the island will feature more development soon.
We finished the PSO-funded Ensemble project in 2005. The final report is available now. Project partners were Risų, IMM, DMI, and the major Danish utilities. Some project reports are available, the final report will come in the end of September. The project also was presented on a number of conferences in recent years - see the Publications sections for details.
Risų and IMM are also partners in the Anemos project, where the majority of institutes in Europe working on short-term prediction are joining forces with utilities, meteorological institutes and software companies to compare their models and develop a large step forward on all fronts. Both WPPT and Prediktor are currently being installed for 7 clients in Europe. The Anemos project is essentially over, but the Anemos software can be bought commercially, and a new research project called Anemos.plus is approved by the EU.
In May 2004, a new project started looking at the start-up properties of WPPT, to facilitate the quick set-up of the installation at a new site. It is called Intelligent Prognosis Systems for Wind Power, and is paid for by the Danish PSO fund. Most of the project partners of the Ensemble project are also in here.
In June 2005, another project started, looking at Improved Wind Power Forecasts, also funded by PSO. This project is run by DTU as well.
Yet another successful project proposal came together with WEProg, investigating High Resolution Ensembles for Horns Reef (HREnsembleHR). The project started in April 2006.