Soluna Holdings, Inc.

Soluna develops, owns and operates green data centers for energy-intensive computing under a proprietary "Renewable Computing" model: it co-locates modular data centers behind the meter at wind, solar and hydro plants, buying surplus or curtailed power that grid constraints would otherwise strand. Its MaestroOS software dispatches load against real-time electricity prices, weather, Bitcoin economics and grid-demand signals, letting sites ramp down and sell power back as demand-response. The company operates roughly 123 MW across Project Sophie (Murray, Kentucky) and the Dorothy campus (Silverton, Texas), with Project Kati 1 (83 MW) under construction in Willacy County.

Revenue in 2025 was overwhelmingly Bitcoin: data hosting ~57%, proprietary mining ~38% and demand-response ~4%. Customer concentration is heavy, with two hosting customers representing 59% of hosting revenue and 34% of total revenue. Through 2025-26 Soluna pushed vertical integration and consolidation, taking 100% ownership of the wind-powered Dorothy 1 campus and acquiring the Briscoe wind farm that feeds it, tightening control over both the compute and the megawatts behind it.

The forward story is the conversion of a stated 4.3 GW development pipeline toward AI and high-performance computing. Soluna built an AI-ready, higher-density data-center design (distinct from its Bitcoin MDCs), formed a definitive joint venture with Metrobloks for the ~350 MW Project Kati 2 AI/HPC campus, and is advancing early AI projects including Project Grace and Dorothy 3. In March 2025 it terminated a prior GPU/cloud arrangement with Hewlett Packard Enterprise, refocusing on dedicated infrastructure for third-party leasing and hosting rather than running its own cloud.

Bull case, the behind-the-meter angle: Soluna's edge is that it controls power, not just racks. By siting compute physically behind the meter at renewable plants in ERCOT, it buys some of the cheapest marginal electricity in North America, sidesteps multi-year grid-interconnection queues that gate most AI build-outs, and earns demand-response revenue by curtailing when prices spike. Vertical-integration moves, full ownership of the Dorothy 1 wind-powered campus and the $53M Briscoe wind-farm purchase, mean Soluna increasingly owns the generation under its load. If even a modest slice of the 4.3 GW pipeline converts to AI/HPC leases at data-center economics, the power-cost advantage and the Metrobloks Kati 2 JV give it a differentiated, capital-light path versus grid-dependent peers.

Bear case: the gap between narrative and reality is enormous. Only ~123 MW is energized; the 4.3 GW is a development funnel, not contracted capacity, and the AI revenue line was literally $0 in Q1 2026. The business is still a leveraged Bitcoin miner exposed to hashprice, with 2025 revenue down 21.8% to $29.7M, a $53.4M net loss, a Q1 2026 net loss of $17.5M, an accumulated deficit of ~$367.7M, and a history of dilutive financing. Customer concentration (34% of revenue in two hosts), project-level debt across Generate Capital, Spring Lane and Galaxy, and a complex web of Class A/B JV interests all sit between today and any AI payoff.

Net: this is power-first optionality on a micro-cap balance sheet. The behind-the-meter thesis is genuinely differentiated and the renewable power position is real, but execution risk, dilution risk and the fact that the AI pivot is still pre-revenue make SLNH a speculative call on pipeline conversion rather than a fundamentals-supported holding.

Sits firmly on the Power end of the spectrum. Soluna's moat is generation siting and curtailed-MW arbitrage, not chips or cloud; ~95% of revenue is still Bitcoin and the AI line is pre-revenue. The Metrobloks Kati 2 JV and AI-ready designs nudge it toward compute over time, but for now it is a power developer that happens to host compute.