The NSW Government's long-running mechanism for underwriting renewable generation, storage and firming under the Electricity Infrastructure Investment Act 2020. Roadmap target: 12 GW renewable generation + 2 GW long-duration storage (≥8 hours) by 2030; 28 GWh storage by 2034. Administered by AusEnergy Services Limited (ASL, formerly AEMO Services) — NSW Consumer Trustee role under the Electricity Infrastructure Investment Act 2020.
Floor-and-ceiling contract: if the project earns below the agreed floor price, the LTESA tops it up; if it earns above the ceiling, surplus flows back to the Scheme Financial Vehicle. Provides revenue certainty for project financing. LTESAs are different from the federal Capacity Investment Scheme: LTESAs are NSW-specific and pair with REZ access rights; CIS is national, sector-led and runs alongside the LTESA architecture. See the CIS tracker →
First LTESA round. Established the floor-and-ceiling mechanism.
Both at agreed fixed price < A$55/MWh for 20 years.
Smaller round focused on firming contracts to underwrite dispatchable capacity.
Continued LTESA generation underwriting. Neoen among winners with multiple SW REZ-aligned projects.
Awarded CWO REZ access rights tied to LTESAs. The 10 CWO access-rights holders (Valley of the Winds, Birriwa, Sandy Creek, Cobbora, Tallawang, Spicers Creek, Liverpool Range) trace to this round.
Australia's largest long-duration energy storage tender. 6 battery storage projects totalling 1.17 GW / 11.98 GWh. Brings NSW total contracted storage to ~30 GWh, well above the statutory 16 GWh by 2030 target. Concurrent SW REZ access rights awarded to Pottinger, Yanco Delta, Dinawan, Bullawah.
All projects ≥ 8 hours duration. SW REZ access-rights cohort awarded in the same round.
NSW Government's biggest renewable energy tender in the state's history. Introduces a new Hybrid Generation LTESA product allowing solar OR wind generation to be combined with battery storage in a single project — first time co-located hybrids can be tendered as one. 2.5 GW target with emphasis on solar-battery and wind-battery hybrids that can dispatch outside daytime peaks. Sufficient to power approximately one-third of NSW homes.
Targets long-duration storage capacity at 50% beyond the state's existing 2030 (2 GW / 16 GWh) and 2034 (28 GWh) benchmarks. Builds on Round 5's record-breaking 1.17 GW / 11.98 GWh outcome from Feb 2026. Critical to firm the dispatchable backbone as the last coal-fired generators exit the NSW grid.
EnergyCo + ASL signalled additional rounds aligned with the 12 GW generation / 2 GW LDES Roadmap targets to 2030. NE REZ access scheme expected to be declared after Round 7 outcomes are confirmed; HCC + Illawarra REZ access schemes still in early planning.
Verified via ASL tender announcements and EnergyCo NSW. Named winners and MW/MWh figures come directly from public release documents. Last verified 2026-05-25.
