IREN’s 2GW Sweetwater Hub conditionally included in ERCOT Batch Zero
- IREN’s 2GW Sweetwater Hub conditionally included in ERCOT Batch Zero as Base Load
- Hub comprises Sweetwater 1 (1,400MW) and Sweetwater 2 (600MW)
- Part of IREN’s >5GW global data center development portfolio
- Construction underway for 300MW at Sweetwater 1, targeting Q4 2027 delivery
- Classifications remain conditional and subject to ongoing approval processes

*this image is generated using AI for illustrative purposes only.
IREN Limited (NASDAQ: IREN) announced that its 2GW Sweetwater Hub has been conditionally included in the Electric Reliability Council of Texas (ERCOT) Batch Zero process as Base Load. This classification is a critical step for securing grid connectivity for the company’s data center infrastructure in Texas.
The Sweetwater Hub consists of two distinct facilities: Sweetwater 1 with a capacity of 1,400MW and Sweetwater 2 with 600MW. These projects are part of IREN’s broader global data center development portfolio, which exceeds 5GW.
Project Status and Timeline
At Sweetwater 1, IREN energized its high-voltage substation earlier this year. Construction is currently underway for 300MW (gross) of data center capacity at this site. The company targets delivery of this initial phase in Q4 2027.
Pipeline and Regulatory Context
Additional large-scale projects within IREN’s development pipeline have also been included in Batch Zero. Consistent with its previous approach, IREN will incorporate these projects into its announced development portfolio only after executing the relevant grid connection agreements.
ERCOT’s classifications remain conditional and are subject to ongoing approval processes. IREN stated it will continue to coordinate with transmission and distribution service providers, grid operators, regulators, and local communities.
What the Numbers Show
The conditional inclusion of the full 2GW capacity (combining 1,400MW from Sweetwater 1 and 600MW from Sweetwater 2) into the Base Load category signals progress in grid integration for a significant portion of IREN’s Texas assets. However, the operational timeline remains staggered, with only 300MW of gross capacity currently under construction with a Q4 2027 delivery target, indicating that the remaining 1,700MW is still in pre-construction or planning phases.
How might the conditional nature of ERCOT's Base Load classification impact IREN's ability to secure final grid connection agreements for the remaining 1,700MW of capacity?
What are the potential implications for IREN's capital expenditure timeline given the staggered delivery schedule, with only 300MW targeted for Q4 2027?
How does the inclusion of Sweetwater Hub in Batch Zero affect IREN's competitive positioning against other data center developers seeking grid access in Texas?

































