Search millions of energy dockets, filings, and regulatory documents for free. Filter by Topic, Keywords, and Filing Type — and ask follow-up questions in plain English. Halcyon combines the precision of structured search with the ability to understand what you actually want to find.
960 Filtered Documents 122 Filtered Documents 1 Filtered Docket
Energy filings can run hundreds of pages. Knowing they're new isn't the same as knowing what changed. Halcyon's free Agentic Alerts combine precise search filters with AI-powered analysis — so you get the signal, not the stack
Monitor geothermal forecasts, evaluations, reports, and projects across the U.S.
~25 documents per alertMonitor the PUCT rulemaking, recommendations, and impact of TX Senate Bill 6
~7 documents per alertMonitor Data Centers powered by Gas across the U.S.
~59 documents per alert
Most energy data is too expensive, too stale, or too much work to build in-house.
Halcyon's Data Subscriptions give you asset-level precision across gas plants, large load tariffs, rate cases, battery storage, and new substations — sourced from authoritative regulatory filings, updated monthly.
Track planned U.S. gas plants, with asset-level technology, timelines, prices, and changes
201 Gas Plants - Updated Feb 18State-level market intelligence on how utilities are engaging with data centers and other large load customers
108 Large Load Tariffs - Updated Feb 12Track planned U.S. substations, with asset-level development, timelines, prices, and changes
189 Substations - Updated Feb 2Let's talk about how we can improve your team's productivity.
I’ve spent most of my career building information systems for energy. Some are as simple a system as a model adding or multiplying X and Y to get Z. Some are as complex as what Halcyon is building now, a multi-source, always-on U.S. energy information system that brings structure to chaos. This is what I do, and it’s also what I think about all the time.
If you weren’t in San Francisco for SF Climate Week a few weeks ago, we at Halcyon recently hosted our first large in-person event on time and speed to power: the critical paths for companies building the energy infrastructure required to meet soaring demand for AI compute.
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