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This week, Halcyon shipped the 12th monthly update to its Gas Power Plant Tracker.
Search
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.
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Follow Oracle's Data Center Development
960 Filtered DocumentsSummarize Recent Texas SB6 Intervenors
122 Filtered DocumentsPG&E 2027 Rate Card
1 Filtered Docket
Alerts
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
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Geothermal
Monitor geothermal forecasts, evaluations, reports, and projects across the U.S.
~25 documents per alertTX Senate Bill 6
Monitor the PUCT rulemaking, recommendations, and impact of TX Senate Bill 6
~7 documents per alertData Centers powered by Gas
Monitor Data Centers powered by Gas across the U.S.
~59 documents per alert
Data Subscriptions
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.
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Gas Power Plant Tracker
Track planned U.S. gas plants, with asset-level technology, timelines, prices, and changes
201 Gas Plants - Updated Feb 18Large Load Tariff Tracker
State-level market intelligence on how utilities are engaging with data centers and other large load customers
108 Large Load Tariffs - Updated Feb 12New Substation Development Tracker
Track planned U.S. substations, with asset-level development, timelines, prices, and changes
189 Substations - Updated Feb 2
An energy “filing” can be a 400-page rate case or a one-line notice that Thursday’s hearing moved to Friday. Many systems of record treat these identically. We at Halcyon don’t think they should. We want to help you quickly find the document that you know exists. It is just keeping bad company.