Invinity has delivered a significant performance enhancement to the energy capacity of our Endurium™ vanadium flow batteries, giving customers more power on site and lower costs than ever before.
Monday 9 November 2026
Across all 100+ energy storage projects we’ve sold or deployed, our customers have expressed a common challenge: the need to deliver durable, flexible storage solutions, while minimizing the consumption of precious space and capital.
Our customers need these storage solutions for different reasons, whether to supply power for rapidly growing data centers, reduce energy costs at factories and steel mills, or make ports and other critical infrastructure more resilient when space is at a premium. Utilities and renewable energy developers face the same challenge: deploying increasing amounts of storage economically while making efficient use of available land and grid connections.
Now, as we pass 12 GWh of energy dispatched from our deployed fleet, Invinity is pleased to release the latest evolution of our Endurium platform to better serve our customers’ needs.
This update means a major performance upgrade to our Endurium and Endurium Enterprise products, offering 50% higher energy density at a significantly reduced cost.
This update retains many of the benefits of the Endurium platform: dramatically reduced fire risk and zero capacity degradation still come as standard, meaning our customers avoid fire setbacks on site and don’t need to reserve space to augment their system in future years.
This latest enhancement further reinforces that Endurium is the right solution for high throughput energy storage applications, giving customers unmatched operational and siting flexibility along with the benefits of easier permitting and local manufacturing.
Above: The Invinity team in Vancouver, Canada in front of Endurium modules being assembled for testing & shipment.
“Our customers are always working within constraints – space on site, grid connection capacity and capital are always top of mind. By enhancing every Endurium module with 50% more energy, we’re helping customers install more storage on the same footprint, with fewer modules to buy, install and maintain. That means a lower cost of storage over the life of the project, and getting more value from the energy infrastructure they already have.”
– Matt Harper, President at Invinity Energy Systems
“This latest performance upgrade to Endurium marks another milestone in the continued development of our product, and another important step in our mission to continually enhance customer value. It reflects the excellent work of our team, who continue to deliver meaningful incremental improvements in performance while maintaining the durability, flexibility and safety our customers rely on.”
– Jonathan Marren, Chief Executive Officer, Invinity Energy Systems
Engineering more energy in every module
The goal was simple, although the development work our expert team invested into reaching it was not: putting 50% more energy into each Endurium module means customers need fewer modules to deliver the same amount of storage capacity.
Our engineering team achieved this by integrating several design improvements including expanding tank capacity to hold more electrolyte and upgrading the electrical and power-distribution systems. We’ve also updated and improved the fluid management and control algorithms based on the knowledge we’ve gained from having over 2,000 operational flow batteries in the field.
For a single module, this resulted in a 50% increase in energy capacity, from 342 kWh to 516 kWh per module, alongside peak power capability of 125 kW.
These changes translate directly into economic and technical advantages at the project level.
The increased capacity significantly improves Endurium’s site energy density, allowing customers to install more storage capacity within the same available space.
At the same time, fewer modules per installed MWh reduces equipment, installation and servicing requirements, contributing to lower capital and lifecycle costs.
Together, these improvements are designed to deliver what ultimately matters most to our customers: a lower levelised cost of storage (LCOS) and greater siting flexibility than ever before.
Designed to be manufactured at scale
The latest evolution of Endurium incorporates lessons from developing and manufacturing the product, with improvements targeting quality, manufacturability, serviceability and lifecycle cost. Invinity is also developing and expanding our supply-chain and production capability around the world, including in the US, the UK, Canada and China.
This work validates the progress made in our ongoing strategic program to systematically reduce product costs for our customers and improve manufacturability at scale.
The latest Endurium design represents significant progress toward those objectives: lower production costs, fewer modules to deliver the same capabilities and a product designed to be manufactured and serviced more efficiently.
Invinity is focused on delivering the most flexible and cost-effective energy storage platforms available in the market today. Endurium sits at the heart of that effort, and is the system we believe can deliver a reliable grid powered by clean renewable energy.