Continuity of supply in Belgium remains at a high level, among the best in Europe. The average number of interruptions on the Elia grid per consumer (Average Interruption Frequency) in 2013 was 0.0891, equivalent to one interruption per customer every 11.2 years. Across all customers, the average duration of interruptions was 2 minutes and 29 seconds per customer, equivalent to an average availability of more than 99.999%. However, Elia is facing a very tight supply situation during the winter 2014/15 due to many outages of power plants.
See measures to master the winter situation in Belgium on www.readyforwinter.be
Integration of fluctuating renewables
The integration of a rapidly growing share of electricity generated by renewables is a major challenge for system management since electricity inflows from renewables are harder to predict and their infeed can vary very quickly (changes in the regions of the Elia Group can reach approximately 2 GW within 15 minutes).
Renewable energy sources are dependent on wind and sun and thus provide a very unsteady electricity input. This volatile electricity input increases the complexity of maintaining the balance between generation and consumption and on keeping safe operational conditions.