Planning estimates are not installation quotes
Calculator defaults are editable assumptions, not verified offers or account-specific tariffs. Actual results depend on your roof, equipment, consumption timing, contract and utility rules.
Sources and dates
Confirm eligibility with the linked utility tariff, regulator or government source. A source effective date does not apply to every account. A website update or successful link check does not establish policy verification. Missing tariffs must not be replaced silently with national averages.
Examples and authorship
Worked examples are illustrative unless permissioned records explicitly identify measured case studies. Author attribution does not establish a certification or independent review. Ratings, credentials and review claims require supporting evidence.
Financial limitations
Payback and savings are projections, not guarantees. Financing fees, maintenance, replacement equipment, fixed charges and export compensation changes can affect results. Confirm assumptions before signing a contract.
Report a correction
Contact Wattcrunch with the page URL, disputed statement and official supporting source. Do not send account numbers or private billing records. An issue is not resolved until the underlying content or calculation is checked.
Read our calculation methodology and advertising disclosure.