U.S. Energy Information Administration (EIA)
Projected Weekly U.S. Electricity Demand
EIA-style projection for Jan 19–25, 2026
ℹ️About This Data
The U.S. Energy Information Administration (EIA) is the federal authority for U.S. energy statistics, providing official data on electricity generation, consumption, and prices across all sectors.
Official EIA demand data is published after the reporting period ends. This page provides an Energy Marketplace projection designed to mirror how EIA reports weekly electricity demand — aggregating all balancing authorities nationwide into a single, national figure.
This metric serves as a macro-level benchmark for U.S. electricity consumption, useful for policy analysis, market context, and understanding national demand trends.
Disclaimer
This is a projection, not official EIA data. Official EIA weekly electricity demand statistics are published after the reporting period concludes. For official data, visit eia.gov.
📈National Trend Comparisons
How this week's projected demand compares to benchmarks
All comparisons reference the projected national total of 8,003 GWh.
ISO / Regional Breakdown
These projections sum to the national total above
| Region | Projected Demand | % of U.S. | WoW Change |
|---|---|---|---|
PJM | 2,148.6GWh | 26.8% | +2.0% |
MISO | 1,652.7GWh | 20.7% | -0.4% |
OTHER | 1,262.5GWh | 15.8% | -1.0% |
ERCOT | 844.7GWh | 10.6% | -0.2% |
SPP | 730.7GWh | 9.1% | +1.5% |
CAISO | 523.8GWh | 6.5% | -0.5% |
NYISO | 482.1GWh | 6.0% | +0.4% |
ISO-NE | 358.1GWh | 4.5% | -0.8% |
| U.S. Total (All Regions) | 8,003 GWh | 100% |
Note: ISO projections are summed to produce the national total. “Other” includes non-ISO balancing authorities (e.g., BPA, TVA, Duke, etc.)
🔢Step-by-Step Calculation
How the projection of 8,135 GWh is calculated for Week 4 (January)
National Total Calculation
| Step | Input | Factor | Output | Change |
|---|---|---|---|---|
1 Historical Baseline (All Regions) Sum of all ISO + non-ISO baselines | — | — | 6,420.0 GWh | — |
2 Seasonal Adjustment January factor applied | 6,420.0 | ×1.080 | 6,934.0 GWh | +514.0 GWh(+8.0%) |
3 Day-of-Week Mix Weekday/weekend blend adjustment | 6,934.0 | ×1.001 | 6,944.0 GWh | +10.0 GWh(+0.1%) |
4 Weather Adjustment Weighted national factor: 1.104× (based on ISO HDD/CDD) | 6,944.0 | ×1.104 | 7,665.0 GWh | +722.0 GWh(+10.4%) |
5 Year-over-Year Growth 3 years of growth at 2.0%/year | 7,665.0 | ×1.061 | 8,135.0 GWh | +469.0 GWh(+6.1%) |
Overview
This projection estimates weekly U.S. electricity demand in a manner consistent with how the Energy Information Administration (EIA) reports demand data. The methodology aggregates projected demand from all major Independent System Operators (ISOs) and other balancing authorities to produce a single national figure.
Data Sources
- •Historical Baseline: EIA-930 hourly demand data, aggregated across all U.S. balancing authorities
- •ISO Coverage: ERCOT, PJM, MISO, CAISO, NYISO, ISO-NE, SPP, plus estimated contributions from non-ISO balancing authorities
- •Weather Inputs: Temperature forecasts (heating/cooling degree days) — interface stubbed for future integration
Calculation Steps
- 1.Historical Baseline: Start with representative weekly demand by ISO, derived from historical EIA-930 data patterns
- 2.Seasonal Adjustment: Apply month-of-year factors based on typical U.S. demand patterns (higher in summer/winter peaks)
- 3.Day-of-Week Adjustment: Account for weekday vs. weekend demand differences
- 4.Weather Adjustment: Modify baseline based on forecast temperature deviations from normal (currently stubbed)
- 5.Growth Factor: Apply modest year-over-year growth (~2%) to account for electrification trends, data centers, and EV adoption
- 6.National Aggregation: Sum all ISO projections to produce the national total — the national number is always the sum of regional parts
⚡ Key Principle
National = Sum of Parts. The national projection is always computed by aggregating regional/ISO projections. We do not independently model national load — this ensures consistency and transparency.
Units & Display
- •Primary Unit: GWh per week (gigawatt-hours)
- •Secondary Unit: Average GW (total GWh ÷ 168 hours)
- •Week Definition: Monday 00:00 – Sunday 23:59 (U.S. local time)
📋 Methodology Note
This methodology is designed to approximate how EIA demand appears once published. The projection is calibrated against historical EIA data patterns but is not official EIA data. Official EIA weekly demand is published after the reporting period ends.
eia-projection-v1.0Official EIA Data
Official EIA weekly demand will appear here once published
🕐 Awaiting official EIA publication for this period
Check back after the reporting week ends for STEO confirmation
Planned features:
- STEO confirmation once published
- Historical comparison: projection vs actual
- Projection accuracy metrics