Ess Tech (GWH) investor relations material

Executive summary

• 2025 featured significant operational restructuring, commercial progress, and a strengthened balance sheet, including a leadership reset and new executive appointments.

• Strategic focus shifted to the Energy Base product, targeting utility-scale and mission-critical applications, with legacy product lines wound down.

• Major contracts secured, including a $9.9 million award for a U.S. military installation and Project New Horizon for SRP, with Google as offtaker.

• Acquisition of VoltStorage GmbH's intellectual property and assets expanded technology capabilities and brought key personnel into leadership roles.

• Three foundational projects are expected to begin delivery in 2027, with manufacturing for Project New Horizon targeted for 2026.

Financial highlights

• 2025 revenue was $1.6 million, down from $6.3 million in 2024 due to transition away from legacy products.

• Net loss improved 26% year-over-year to $63.4 million from $86.2 million, with adjusted EBITDA improving 38% to $(44.3) million.

• Gross loss narrowed by 39% to $27.7 million; operating expenses decreased 33% to $29.7 million.

• Net loss per share improved 41% to $(4.34) from $(7.32) year-over-year.

• Unrestricted cash and cash equivalents were $14.5 million, with $7.5 million in short-term investments at year-end 2025.

Outlook and guidance

• Revenue ramp expected in 2027 and 2028 as Energy Base and foundational project deliveries begin; minimal revenue anticipated in 2026.

• Manufacturing for Project New Horizon expected to begin in 2026, with delivery targeted for December 2027.

• Recurring revenue from the Salt River Project PPA expected to start in 2028.

• Focus remains on commercializing Energy Base and ensuring high product quality for initial deployments.

• Improved liquidity and additional capital raised post-year-end provide financial flexibility for execution.