Inspectable solar intelligence
Solar research, datasets, and validation
Wattcrunch separates observed evidence, modeled planning values, and user-entered assumptions so homeowners can understand what a result does and does not prove.
Dataset
State solar price benchmarks
Downloadable low, modeled median, and high cash price-per-watt planning ranges for 50 states.
Calculator research
Best solar calculator methodology
Compare solar calculator accuracy factors: PVWatts, utility rates, incentives, privacy, and explainability.
Buyer checklist
Solar quote red flags
Check for hidden dealer fees, outdated tax-credit claims, vague equipment, weak warranties, and tariff mistakes.
Market comparison
SolarReviews vs EnergySage vs Wattcrunch
Understand when to use a marketplace, review site, or private solar calculator workflow.
Validation tool
Estimated vs actual results
Calculate production and savings error locally, then download a portable validation record.
Methods
Calculation and editorial methodology
Review formulas, assumptions, source hierarchy, review standards, limitations, and corrections.