SONI launches second phase procurement for grid-stabilising technology to support renewable energy transition

System Operator for Northern Ireland (SONI) has launched a second phase of procurement for Low Carbon Inertia Services, seeking additional synchronous condenser units to strengthen grid resilience and support higher levels of renewable energy generation across Northern Ireland's electricity network.

The Belfast News Letter reported that the Phase 2 tender, valued at £7 million (approximately €8.1 million), builds on the successful completion of two synchronous condenser projects in the north west of Northern Ireland, at Coolkeeragh Substation and Coleraine Substation, both currently under construction and expected to be delivered by 2027.

Synchronous condensers are machines that stabilise electricity systems by providing low-carbon inertia services, maintaining grid balance and security as more wind and solar generation is added to the network. Historically, this stability was provided by large conventional gas-fired power stations, making the technology a critical enabler of decarbonisation without compromising supply security.

Six synchronous condenser projects have been procured across the island of Ireland under Phase 1, developed jointly by SONI and EirGrid as part of their Shaping Our Electricity Future operational roadmap. Phase 2 targets the procurement of up to 14,000 MVA.s of additional low-carbon inertia capacity, with SONI aiming to award contracts by May 2027 and go-live set for 48 months after each contract's effective date.

Alan Campbell, chief executive of SONI, said: "The second phase of procurement for these services is a considerable milestone on our journey to delivering a carbon-free power system."

Campbell added that managing a power system in transition involves carefully balancing the integration of renewables onto the electricity grid while maintaining stable and secure electricity supply.

He said synchronous condensers are "an innovation that will help our grid engineers manage this challenge and deliver a cleaner, secure and more affordable future for everyone in Northern Ireland."

The Phase 2 procurement process introduces several improvements on Phase 1, including an increased contract duration of eight years and enhanced performance security requirements.

Explore the complete procurement documentation and technical specifications at the original source.