A new industry snapshot from TWAICE’s 2026 BESS Pros Survey points to mounting operational pressure as battery energy storage deployment accelerates.
Drawing on 117 responses from professionals managing grid‑scale systems, the report shows that rapid growth is exposing gaps in efficiency, data use, and supplier accountability. 39% of the respondents were from Europe and 36% from North America.
According to the survey, 41% of operators say on‑site issues cause revenue losses “all or most of the time”, while half list system performance and availability as a top concern. Despite the volume of data produced by modern assets, 40% still struggle to access what they need for effective operations.
TWAICE CEO Stephan Rohr says “Grid-scale BESS is entering a new phase… The industry has proven it can deploy at scale; now the question is whether operations can keep up.” The report suggests many teams remain reliant on reactive processes, with multi‑vendor fleets and inherited tool stacks adding further complexity.
Supplier accountability also remains a sticking point. Although 48% of asset owners rate supplier responsibility positively, unclear escalation paths and inconsistent performance definitions continue to slow issue resolution. Nearly half of respondents say holding suppliers to their promises is a major challenge.
Data fragmentation is another recurring theme. Operators frequently juggle multiple dashboards and portals without a single, trusted source of truth. As Rohr notes, “What stands out is not a lack of data in BESS operations, but the difficulty of turning that data into something teams can confidently act on.”
TWAICE is an analytics platform built for real-world battery energy storage (BESS) operations at scale. The company aims to help grid-scale operators move beyond reactive troubleshooting toward proactive, data-driven operations that improve safety, reliability, and profitability across their BESS fleets.
