Vortrag und Tagungsbeitrag von Michael Steck bei der Microgen'II Conference in Glasgow, 04.-06. April 2011
Linking distributed energy resources to a virtual power plant (VPP) makes their electricity output more predictable and controllable. VPPs help integrating and boosting renewables as well as CHP and may reduce grid losses. Furthermore, they open energy markets to individual devices. Linked devices can take part in the wholesale market and provide balance power. Estimates of revenues are usually based on day-ahead forecasts, but they do not draw realistic irregularities (deviation of the thermal load, activation of balance power) into account. Therefore, the simulation developed at the FfE determines in a first step the revenues, based on a load forecast. By simulating deviations of the thermal load and activation of balance power in a second step, the operation of boilers and thermal storages are analyzed. The short-term redispatch and the remaining deviations reduce the revenues of the provided balance power. These ex-post revenues can be quantified within the close-to-reality simulation.