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Halcyon Data Subscriptions

Quickly evaluate energy market dynamics and find new growth opportunities with regularly updated data sets collated from authoritative sources nationwide 
UPDATED - March 18 2026

Gas Power Plant Tracker

209 Plants 114.8GW Capacity

US gas-fired power plant costs have tripled this decade. Halcyon has built a multi-state, centralized feed of all planned US assets, with asset-level technology, timelines, prices, and changes.

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UPDATED - March 12 2026

Large Load Tariff Tracker

132 Tariffs

Large load tariffs are specialized electricity rate structures designed for customers with significant power demand, like data centers. These tariffs are used to allocate costs more equitably, ensure grid stability, and manage risk.

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UPDATED - March 18 2026

Rate Case Tracker

261 Rate Cases 84M Utility Customers

Track key metrics from all IOU-submitted rate cases across the country.

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UPDATED - March 6 2026

Battery Energy Storage
System Tracker

569+ BESS representing ~274.6 GWh 

Track planned U.S. utility-scale storage, with asset-level technology, timelines, prices, and changes.

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4 Updated March 27 2026

New Substation
Development Tracker

Track 293+ projects informing new substation development nationwide.

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December 3 2025

FERC ANOPR Comment Analysis

175 Organization comments

This workbook summarizes comments submitted regarding FERCs proceeding on the interconnection of large load (RM26-4-000).

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We have a pipeline of Data Subscriptions in development, we’d love to hear what’s important to you. Please reach out.

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The Next Phase of Energy, Power, and AI
New York Climate Week 2025 Keynote

Halcyon Chief Strategy Officer and co-founder, Nat Bullard, uses data sourced directly from Halcyon's software platform to discuss the current state of the energy grid as it relates to forthcoming demand and current policy, and shares perspective on the rapid expansion of AI workloads and their impact on energy consumption, sustainability, and infrastructure resilience.

Download the full keynote presentation now, for free.

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