What’s going on with Fluence?

Fluence, a major maker of large batteries used to store power on the electric grid, is running into serious manufacturing trouble. The company just cut its revenue forecast for the second time in a matter of weeks, this time down to $2.4 billion for the year, from an original estimate of $3.4 billion. It also now expects a $200 million loss. The main problem is a new factory in Houston that makes cooling equipment for its battery systems. An automated welding process at the plant has badly underperformed, forcing workers to switch to slower manual welding. The plant is also still waiting to connect to the power grid, so it's running on generators in the meantime. On top of the lost revenue, Fluence faces about $56 million in penalties for late deliveries. The company's chief product officer was let go, and a new chief operating officer has been hired.

For most homeowners, this is background industry news rather than something that changes your own upgrade plans. Fluence's batteries are grid-scale systems used by utilities and, increasingly, data centers — not the kind of battery you'd put in a house. But it's a sign of how strained supply chains are for the large batteries that increasingly back up the electric grid, including batteries paired with solar and wind projects. Analysts warn that delays could push some data center and utility orders into 2027, and that competitors may start winning business Fluence would otherwise have gotten. None of this affects home energy rebates or incentives directly.