Energinet: Danish Electricity Supply Security 2024
Energinet, Denmark's transmission system operator, publishes an annual report on electricity supply security according to the Electricity Supply Act and System Responsibility Regulation. This report evaluates long-term security for the next 10 years
The transition to renewable energy and rising electricity demand poses new challenges, particularly as dispatchable thermal capacity declines. This increases the risk of shortages during periods of low wind and solar production. To address this, Energinet has set a planning target of 36 outage minutes per consumer annually, ensuring 99.993% electricity availability in 2034.
The adequacy calculations rely on state-of-the art energy modelling techniques using BID3 to develop scenarios and run simulations with electricity demand projections. Grid performance under various conditions, highlighting potential shortage periods.
The outcomes emphasise the need for:
- Additional balancing reserves
- Stronger cross-border electricity exchange
- And more flexible consumption.
The findings stress the importance of neighbouring countries maintaining their own capacity adequacy, as Denmark's security is closely tied to international electricity markets.
Energinet is also exploring a capacity mechanism to secure sufficient generation, promoting demand flexibility, and enhancing system resilience.
“There is a need to be able to use a number of new means in the future – not all of them have been developed yet,” explains Stine Grenaa Jensen, Deputy director and head of the Systems Development departments at Energinet. The so-called “system-supporting properties means” must ensure that the electricity system is stable and can handle faults and outages. Control and protection functions must be developed so that intermittent electricity production and electricity consumption plants become partners and not opponents when it comes to securing the supply of electricity to Denmark.
