Resumen:
This Work Package 6 report of the IMPROGRES project provides an overview of regulatory strategies and incentives, conducive to (i) network integration of increasing levels of distributed generation including notably intermittent renewable technology such as wind power and solar photovoltaics (PV) as well as (ii) options for reducing impacts on surging network integration costs. Similar to the IMPROGRES project in general, this report focuses on European distribution networks. It includes specific country studies of Denmark, Germany, the Netherlands, Spain and the UK. This summary presents the main findings of this report.
Integration of distributed generation, notably from renewable, (DG/RES) in networks.
When distributed electricity supply grows to a certain non-negligible level, it can no longer be ignored in planning and operation of the electricity networks. With progressive use of stochastic, renewable energy sources by decentralized generators connected to distributed networks, flows of energy between transmission network, distribution network and end-use customers take on a pattern that is to an increasing extent bi-directional and variable in nature. As a result, DSOs have to deal with an increasing number of different network situations. The network management of all these different situations will be increasingly costly. This is particularly true if the current „fit-and-forget. Network management philosophy is maintained. This philosophy means that the network itself is prepared for all possible network situations and no active contribution of generation and demand to network operation is
expected. When network reinforcements have to cover all possible situations, utilization of network assets decreases. This, in turn, implies increasing costs. Therefore it is highly desirable that active management of distribution network components be considered deploying ICT technology and including the control of power injections by generating installations on the one hand and the power uptake by load devices on the other. This will increase the visibility of DG by network operators. Moreover, active network management (ANM) of distribution networks may contribute to the realisation of potential advantages of distributed generation, such as reduced system losses, improvement in voltage profile and better power quality in the existing transmission and distribution network.
The benefits and costs of active network management for the three case studies were identified in the D6 report. In these case studies a cost saving potential was found of about 5-10% of the additional network cost. Extrapolating these findings to the EU-27 would imply network cost savings due to ac-tive network management of about € 1-3 billion in the period up to 2020. To identify opportunities for realization of this cost savings potential, existing network planning and innovation practices were analysed and recommendations for improvement were formulated.
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Proyecto del IIT: IMPROGRES (IMPROGRES)
Entidad financiadora: Comisión Europea. Intelligent Energy-Europe (IEE)
Fecha de publicación: 01-05-2010
IIT-10-070I
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