Sydney, NSW – New South Wales households and businesses in the densely populated Sydney-Newcastle-Wollongong region can anticipate bolstered electricity reliability, with the NSW Government awarding significant firming capacity contracts this week. On 15 May 2026, AEMO Services (ASL) announced the successful outcome of NSW Roadmap Tender 7 for Firming Infrastructure, securing two critical projects set to deliver 532 MW or 2,128 MWh (2.1 GWh) of dispatchable energy by November 2027.
This move directly addresses a forecast supply shortfall for the summer of 2027-28, a period when the state’s largest coal-fired power station, Eraring (2.8 GW), is scheduled to retire in August 2027. The projects, a large-scale battery energy storage system (BESS) by AGL and a Virtual Power Plant (VPP) by Enel X Australia, have been awarded Long-Term Energy Service Agreements (LTESAs), committing them to provide electricity when the grid needs it most.
Strengthening the Grid in Key Demand Centres
The Sydney-Newcastle-Wollongong region was specifically prioritised for this tender due to its increasing electricity demand, driven by ongoing electrification and new industrial loads. These urban centres represent the state’s largest demand hubs, making reliable firming capacity crucial for system stability as the energy transition accelerates.
“A key benefit of these contracts is they require projects to support the system when consumers need them most, with performance obligations that require projects to make capacity available during Lack of Reserve 2 and 3 events.” – Nevenka Codevelle, CEO, AEMO Services
The new capacity from Tender 7 adds to approximately 1 GW of firming infrastructure already under contract through previous Roadmap tenders, bringing the total contracted firming capacity to over 1.5 GW. This strategic investment is designed to ensure that the grid can withstand periods of peak demand and system stress, preventing potential outages and maintaining a secure electricity supply for consumers.
The Projects: Battery Storage and Virtual Power Plants
AGL’s successful bid involves a substantial battery energy storage system. While specific financial details for this particular project were not publicly disclosed, such large-scale batteries typically represent multi-million dollar investments, offering rapid response capabilities to grid fluctuations. These systems store excess renewable energy during periods of high generation and inject it back into the grid during high demand or low renewable output, effectively smoothing supply. Homeowners interested in similar benefits at a smaller scale can explore options for Home Battery Rebates Available in Australia 2026.
Enel X Australia’s Virtual Power Plant (VPP) contribution is particularly innovative. This 32 MW VPP will aggregate flexible demand from commercial and industrial businesses across Greater Sydney, the Central Coast, Newcastle, and the Lower Hunter region. By coordinating the reduction or shifting of energy use from these businesses, the VPP can provide fast, dispatchable capacity to the grid without requiring new peaking generation. This additional 32 MW of flexible demand is estimated to support approximately 10,000 homes during grid emergencies, building on Enel X Australia’s existing 95 MW of VPP capacity under the NSW Roadmap.
This approach highlights the growing role that demand-side management and distributed energy resources can play in maintaining grid stability. For consumers, understanding how to manage their own energy use can also lead to significant savings. Consider reading How to Avoid Peak Demand Charges and Slash Your Time-of-Use Electricity Bills in Australia in 2026.
Future Tenders and the Energy Transition
Beyond Tender 7, AEMO Services has confirmed that two additional NSW Roadmap tenders are commencing in May 2026. These upcoming tenders will seek to procure a further 2.5 GW of generation projects and 12 GWh of long-duration storage projects. This ongoing pipeline of investment underscores the scale of the energy transformation underway in NSW, aiming to replace retiring coal capacity with a diverse portfolio of clean, reliable energy resources.
The NSW Government’s commitment to expediting critical renewable energy projects was further solidified with new legislation introduced on 6 May 2026. The Energy Legislation Amendment (Prioritising Renewable Energy) Bill 2026 aims to streamline approvals for generation, storage, and network projects, ensuring that vital infrastructure can be delivered more quickly. This legislative backing, combined with strategic tenders, is crucial for achieving the state’s renewable energy targets and maintaining energy security.
The transition to a cleaner grid is a complex but necessary undertaking. These recent developments in NSW demonstrate a proactive approach to grid firming and capacity building, ensuring that as the state moves away from fossil fuels, its electricity supply remains robust and affordable for all Australians. For general information on support available for energy costs, refer to Australia’s Energy Bill Relief in 2026: What Support is Still Available?.