Soluna Holdings Announces ERCOT Base Load Status for 100 MW Dorothy

What Happened
On September 14, 2026, Soluna Holdings, Inc. announced via press release (filed on Form 8-K, Item 7.01) that the Electric Reliability Council of Texas (ERCOT) has conditionally classified Soluna’s 100 MW Project Dorothy campus as "Base Load" in Batch Zero. The press release is attached to the filing as Exhibit 99.1.

Key Details

• Date filed: September 14, 2026 (Form 8-K, Item 7.01, Regulation FD Disclosure)
• Project: Project Dorothy campus — 100 MW capacity
• ERCOT action: Conditional classification as Base Load in Batch Zero
• Exhibit: Press release dated September 14, 2026 included as Exhibit 99.1 (also noted in Item 9.01)

Why It Matters
This filing documents an operational milestone for Soluna’s Project Dorothy within ERCOT’s resource classification process. The Base Load designation is an ERCOT classification that relates to how the project is identified and categorized for Texas grid planning and market processes. Investors should note the disclosure as a material operational update; the company provided the information via Regulation FD-compliant press release attached to the 8-K.