IEA Energy Storage OnSeminar - System Flexibility from Medium-Duration Energy Storage

24. September 2026, 2:00 - 3:00 p.m.
online, AT

The Energy Storage OnSeminar is a webinar series on topics regarding energy storage. This session focuses on the work of IEA ES Task 42, which examines the role of medium-duration energy storage (MDES) in bridging the gap between short- and long-duration energy storage technologies and supporting secure, cost-effective, and decarbonised electricity grids.

Organizer

IEA Energy Storage TCP

Content Description

Energy storage will be required over a vast range of timescales to support future net-zero electricity grids. The discharge storaging times range from as little as 1 second to as long as several years. Different types of technology are important for different parts of the spectrum.

Sandwiched between Short Duration Energy Storage (SDES) and Long Duration Energy Storage (LDES) is Medium Duration Energy Storage (MDES). At present, the range of discharge times being associated with MDES is 4hrs – 200hrs but these boundaries (with SDES and LDES respectively) are not yet crisply defined and both may need to move.

The main goal of IEA ES Task 42 on Large Scale, Medium Duration Energy Storage is to establish the rightful place of MDES technologies within the array of technologies that are available to support transition to Net Zero electricity grids.

Learn more about IEA ES Task 42: System Flexibility from Medium-Duration Energy Storage

Participant Information

Contact Address

Christian Fink
E-Mail: c.fink@aee.at