About the Data
Transparency matters. Here's exactly where The Daily Mine's data comes from, how often it's updated, and the methodology behind our news curation.
Grid Data Sources
The Daily Mine tracks electricity demand across all seven major U.S. Regional Transmission Organizations (RTOs) and Independent System Operators (ISOs). This data powers the grid dashboard and related statistics throughout the site.
Demand and reserve margin from ERCOT's public grid data API. Includes intraday forecasts.
Covers 13 states from Illinois to New Jersey. Data from PJM's Data Miner public API.
Midcontinent ISO covering 15 states. Demand from MISO's public market data.
California ISO grid data including demand, renewables output, and net imports.
Southwest Power Pool covering 14 states. Hourly load data from SPP's public portal.
New York ISO. Hourly demand and generation mix from NYISO's public data.
ISO New England covering six states. Grid data from ISO-NE's public information system.
Update Frequency
| Data Type | Frequency | Source |
|---|---|---|
| RTO Demand | Every hour | Direct API pulls |
| ERCOT Reserve Margin | Every hour | ERCOT public grid data |
| Power Outages | Every 4 hours | Utility outage maps |
API Access
The Daily Mine's grid data is available via public JSON endpoints:
This data is free to use with attribution. Please link back to The Daily Mine if you use our data in your projects.
News Curation Methodology
The Daily Mine curates energy news from 60+ sources daily. Stories are selected based on relevance, sourcing quality, and US energy market impact.
Source Tiers
We categorize sources by editorial standards and track record:
- Tier 1 Major wire services, newspapers of record, and specialty publications with dedicated energy desks (Reuters, Bloomberg, WSJ, FT, E&E News, Utility Dive)
- Tier 2 Trade publications, regional papers, and specialist outlets with solid editorial standards (RTO Insider, Data Center Dynamics, Canary Media)
- Tier 3 Local news, press releases with verification, and aggregated reports
Selection Criteria
Stories make it to The Daily Mine if they meet these criteria:
- US Nexus: Direct impact on US energy markets, policy, or infrastructure
- Actionable Information: News that matters for industry professionals, investors, or policy watchers
- Timeliness: Breaking news or significant developments (not rehashed PR)
- Source Quality: Preference for Tier 1 and Tier 2 sources; Tier 3 only for exclusive local coverage
What We Don't Cover
- Pure opinion/editorial without news value
- Foreign energy news without US implications
- Corporate PR without independent verification
- Paywalled content we can't verify
Archive & Historical Data
The Daily Mine maintains a searchable archive of all stories, organized by category, state, and date. Archive data is stored in structured JSON format.
| Archive Type | Coverage | Format |
|---|---|---|
| Story Archive | All stories since launch | JSON by month/category |
| State Data | All 50 states | EIA generation, prices, sources |
| Project Tracker | Major energy infrastructure | Manual updates + news links |
Government Data Sources
State energy profiles, electricity prices, and generation statistics come from official government sources:
- EIA (Energy Information Administration): State electricity profiles, retail prices, generation mix, capacity data
- FERC: Regulatory filings, rate cases, infrastructure permits
- DOE: Loan program data, research initiatives
- State PUCs: Rate case filings and decisions
EIA data is refreshed monthly when new reports are published. State profile pages note their last update date.
Corrections & Updates
We take accuracy seriously. If you spot an error in our data or coverage:
- Email: hello@thedailymine.co
- Twitter/X: @stephennittler
Corrections are made promptly and noted in site updates. Significant corrections are logged in the changelog.