Can energy storage units be installed in the Danish power system?

Elsystemansvar A/S (subsidiary of Energinet) has asked Ea Energy Analyses to analyse the benefits and main drivers for the installation of storage units in the Danish power system. This will supplement the technology aspects in the recent Technology Catalogue on Energy Storage (DEA and Energinet, 2019).

How is Energinet regulated in Denmark?

In Denmark, Energinet ensures the international obligation to have at least one top-down (i.e. through interconnectors) and one bottom-up (i.e. a unit) restoration system per market area. The market is regulated through bilateral agreements, which shall encompass the requirements in Table 4.

Are there opportunities for value-stacking in Danish electricity markets?

After going over the main features of the Danish electricity markets – with a focus on the provision of ancillary services – opportunities for value-stacking (utilizing opportunities across markets) are identified and examined for the year 2025 at the transmission grid level.

Does Denmark need more wind and solar power?

In 2019, wind generation in Denmark supplied 47% of the electricity demand and solar power added another 3%. Additional wind and solar capacity is un-derway. The variability of this generation is a challenge to be managed cost-effectively.

Can storage be used for power & energy applications?

Storage can be employed for power and energy applications (SANDIA, 2010). In the first case, the unit is required to have a fast response and typically for a limited amount of time (seconds to minutes). In the second case, long dis-charge times at full capacity (up to several hours) are required.