October 2025 — Live
30-minute settlement goes live
Aligns Ireland with GB settlement periods
November 2025 — Live
SDP-02 goes live
TSO centrally dispatches both charge and discharge
Q1 2027
Long duration energy storage procurement launches
EirGrid targets long-duration storage, contracts expected Q4 2027
September 2027
DS3 replaced by FASS
Fixed tariffs replaced by competitive auctions
2030 expected
Full balancing mechanism participation
Batteries gain full access to the balancing market
Unknown
Potential DUoS removal
Timing for distribution use of system charge removal remains undecided