Methodology

How to verify this site

Review the methodology, inspect downloadable datasets, browse topic hubs and discovery pages, and compare state rankings.

Core formulas

• How Electricity Rates Are Presented — Rates in ¢/kWh, conversion to monthly bill estimates
• How Electricity Inflation Is Calculated — 1-year and 5-year percentage changes
• How Electricity Affordability Is Estimated — Standard usage assumption, operating-cost comparison
• How Battery Recharge Cost Is Estimated — Capacity, efficiency, and charging losses
• How Generator vs Battery Cost Is Compared — Fixed assumptions for operating-cost comparison

Proprietary metrics

• Electricity Price Index™ — State rates normalized to a national baseline of 100
• Value Score™ — Composite score combining affordability, price, and data freshness
• Freshness Scoring — How we classify data as fresh, aging, or stale

Data foundation

All metrics use state-level average residential electricity prices (¢/kWh) from our normalized data pipeline. See electricity data, datasets, sources, data policy, and about for data provenance and update cadence.

Explore

• Knowledge Hub — National snapshot, state rankings, and methodology
• Electricity Trends — National price trends, inflation, and affordability
• Electricity Insights — Most expensive and cheapest states, key insights
• Download datasets — JSON and CSV exports for electricity prices and rankings
• View the site map · Browse the data registry · See the page index · Review the launch checklist

Explore more

• Knowledge Hub
• Datasets
• Electricity trends
• Site map
• Data registry
• Launch checklist
• Site maintenance

Context

• AI data centers and demand growth — How emerging demand patterns may affect electricity prices