Electricity prices
2024 state residential averages from the US Energy Information Administration State Electricity Profiles.
Transparency
Data Sources & Methodology
MySolarCheck combines observed public records with clearly labeled calculations. Source records, estimates and editorial summaries are not the same thing, so we identify each below.
Current dataset coverage
- Installation records
- 3,426,466
- Covered jurisdictions
- 27
- Published county datasets
- 747
This is not a census of every US solar installation and it does not cover all 50 states. Coverage depends on the reporting programs included in the LBNL release.
Observed installation and cost records
Installation counts, system capacity, customer segment, equipment, installer names and reported installed prices come from the Lawrence Berkeley National Laboratory Tracking the Sun 2024 release distributed through the US Department of Energy Open Energy Data Initiative.
- Counts are records represented in that release, not official totals for an entire state.
- Cost metrics are aggregates of reported projects after removing implausible cost-per-watt outliers.
- The 2024 records are incomplete, so trend charts stop at the latest sufficiently complete year, currently 2023.
- County pages require at least 25 observed records and pass a geography sanity check before publication.
Context data used in estimates
Population
State population estimates from the US Census Bureau ACS. Current model snapshot: 2022.
Solar resource
State-level peak-sun-hour reference values based on NREL PVWatts solar-resource conventions.
Modeled economics
Production, annual savings and payback figures are MySolarCheck estimates, not observed outcomes or installer quotes. The model uses system size, a state-level solar-resource proxy, a 14% system-loss assumption and state-average electricity prices. It does not model parcel-level roof orientation, shading, time-of-use rates, export compensation or local permitting costs.
For new residential systems placed in service in 2026, calculations apply no federal Residential Clean Energy Credit. The IRS states that the 30% credit applied to qualified property installed from 2022 through December 31, 2025 and is unavailable for property placed in service after that date. Federal status reviewed August 6, 2026.
Incentives and equipment
State incentive pages are editorial snapshots assembled from DSIRE, state agencies and utilities. Programs can change without notice; verify eligibility and funding directly with the program administrator before making a purchase.
Equipment pages summarize manufacturer and model names reported in Tracking the Sun records. Brand shares are shares of named mentions, not national market share. Reported project capacity and cost context are not product specifications, retail prices, reviews or recommendations.
Community-solar pages use direct state-agency, regulator or utility links and avoid unsupported enrollment or savings totals. Availability can change by utility territory and project capacity, so every page includes a current-source verification step.
Important limitations
- Reporting coverage and data quality vary by jurisdiction and year.
- Small samples can distort averages; county routes with fewer than 25 observed records are omitted.
- Historical installed prices are not current quotes.
- Incentive information is educational, not tax, legal or financial advice.
- MySolarCheck is independent and is not affiliated with a government agency.