How We Calculate Your Savings

Powrly uses proportional usage ratio scaling to project your future electricity costs — not a flat average, but a seasonally-adjusted model based on your actual consumption pattern.

The Formula

1. Normalize Your Usage to 30 Days: Normalized kWh = (Your kWh / Billing Days) × 30
2. Calculate Your Usage Ratio: Usage Ratio = Your Normalized kWh / Area Average for Billing Month
3. Project Each Future Month: Projected kWh (Month N) = Area Average for Month N × Your Usage Ratio
4. Calculate Costs and Savings Per Month: Sum all 12 monthly savings for the annual total.

Data Sources

• TDU regional monthly averages from ERCOT load profiles and EIA Form 861M data
• Hundreds of available electricity plans from PowerToChoose.org, refreshed weekly
• Your actual kWh usage, billing period, and TDU region from your uploaded bill

Supported TDU Regions

CenterPoint Energy (Houston), Oncor (Dallas/Fort Worth), AEP Texas Central (South/West Texas), AEP Texas North (Abilene/San Angelo), TNMP, and Lubbock Power & Light.