CATL has delivered the first batch of its EnerQB long-duration energy storage systems to Quinbrook Infrastructure Partners, a global energy infrastructure investment firm. The delivery took place at CATL's Xiamen production base, with each unit rated at 5.64 MWh. The news was reported by 36Kr, citing Cailian Press.
Designed for Australia's 3 GW/24 GWh programme
EnerQB is based on CATL's Tianheng long-duration storage system and is designed for a series of long-duration projects in Australia totalling 3 GW/24 GWh. The first unit will be shipped to Stanwell Power Station in central Queensland for deployment.
First GWh-scale batch for 8-hour-plus storage
The report describes the delivery as the first batch supply of an 8-hour-plus long-duration storage system for a gigawatt-hour-scale scenario. That framing suggests long-duration storage is moving from demonstration and small-scale procurement into volume manufacturing and delivery.
'This is the first batch delivery of an 8-hour-plus long-duration storage system for a GWh-scale scenario.' — 36Kr, citing Cailian Press
What it signals for LDES
CATL's Tianheng platform is a lithium-based long-duration system, not a flow battery. But the delivery is relevant to the broader LDES market because it tests whether multi-hour storage can be procured and supplied at scale. Quinbrook's Australian projects are among the largest planned long-duration storage deployments, and the first unit's performance will be watched closely.
The delivery does not disclose pricing, final project timelines or the full commercial terms. It does show that large-format long-duration systems are entering the supply chain. For LDES competitors, including flow battery developers, the CATL move raises the bar for manufacturing scale and cost. The key question is how quickly 8-hour-plus systems can be deployed and financed across other markets.
This article was assisted by AI analysis. Please refer to the original source for official information.