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Spotted an outdated spec, a broken calculator, or an incentive program that's changed? Corrections get priority routing. General questions about the methodology, the platform, or partnerships are welcome too.
Report a correction
Battery specifications, utility tariffs, incentive programs, and VPP enrollment status change often. If a number on this site looks stale or wrong, tell us the page, the figure, and what you believe it should be — corrections get verified and fixed within days.
Methodology & general questions
Questions about how a calculator works, requests for a new residential, commercial, or industrial case study, or suggestions for a utility program we should cover.
Press & partnerships
Media inquiries, data licensing, or partnership proposals across the Ownership Economics family of sites.
Before you write in
Most methodology questions are already answered on the Methodology page, which documents every formula and data source used across the site. Incentive and VPP program amounts should always be verified directly with the issuing program before you rely on them for a purchase decision — see the Incentives page for current program links.