After reading this, you will know exactly how reliable Vulcan's construction completion forecasts are - and why satellite-observed milestones outperform permits, press releases, and insider estimates for predicting data center online dates.

The Problem With Existing Data Center Timeline Data

The data center industry is expanding faster than any forecasting methodology can keep pace with — and the conventional inputs are failing. Permits get filed for projects that never break ground. Press releases announce timelines that slip by years. Insider intelligence reflects intent, not reality.

Unlike power generation, where the U.S. government's EIA Form 860M provides a validated monthly baseline dating back to 2015, data centers have no equivalent regulatory reporting. There is no authoritative ground truth — until now.

How Vulcan Works: Observation Over Assertion

Vulcan takes a straightforward approach: instead of relying on what developers say, we watch what they build. Weekly satellite imagery across 886 campuses and 4,711 units — 372 GW of tracked data center capacity — lets us identify the physical milestones that actually matter.

The Milestone Framework

Each project is tracked through a defined sequence of observable construction events:

• • Land clearing — the first skin-in-the-game signal that separates serious projects from speculative filings
  • First structures — refines the probability window significantly once vertical construction begins
  • Construction completion — the primary metric Vulcan tracks and forecasts
  • Thermal drone coverage — added to answer the energization question that completion alone cannot

From these milestones, Vulcan generates a probability distribution for each project spanning fastest, average, and slowest historical completion timelines — producing an Earliest, Median, and Latest predicted online date.

An important methodological note: Vulcan measures construction completion, which is distinct from energization or commercial operation. However, common sense and field observation confirm these events cluster closely together, and our thermal drone layer now provides a direct energization signal.

What You Can Do With This Today

Vulcan users have direct access to the underlying data behind this analysis. Here is how to replicate and extend it:

• Pull the 9/8/2025 vintage in the Vulcan platform and filter for projects expected online by June 2026 to see the full 168-project universe.
• Use the Earliest Online Date as a high-confidence screening filter — if a reported date precedes Vulcan's earliest estimate, flag it for scrutiny.
• Use the weekly progress indicator and completion index to track how individual project trajectories are shifting week over week.
• Activate thermal drone coverage for energization confirmation on high-priority projects.

For more information on the Vulcan Platform please reach out to David Bellman dbellman@synmax.com