PRACTICAL IMPLEMENTATION OF GRID CONNECTED ENERGY STORAGE SYSTEMS WITH LITHIUM-ION BATTERY: THE GROW-DERS PROJECT

摘要

Development and use of Renewable Energy Sources is one of the key elements in European Research. However connecting these sources to the electricity distribution networks causes significant effects on the management of these networks. Bottlenecks are stability, security, peaks in supply & demand and overall management. Electricity storage systems provide means to overcome technical and economic hurdles for large-scale introduction of PV and other distributed sustainable energy sources. The costs of different storage technologies have dropped dramatically during the last years making introduction of storage systems feasible. However, unfamiliarity with the techniques, lack of confidence and uncertainty with costs and benefits cause very large inertia by end users (utilities, investors). Moreover, network components are designed to be technical and economic effective for a (minimum) period of 40 years, causing conservative behavior. The latest up-to-date results of the laboratory tests of the first integrated system (Li-ion battery, inverter, overall energy management system and the connection to the local distribution grid) are presented.