BidProof is an online service that provides independent reviews of residential solar energy proposals for homeowners. The service analyzes the price, equipment, estimated energy production, savings, warranties, and claimed incentives in a solar proposal, then delivers a plain-language report explaining the findings. Homeowners can also submit the contract they intend to sign for an additional review that compares the contract terms against the proposal. The service is designed to help individuals make a more informed decision before signing any agreement with a solar installer. The review process begins when a homeowner uploads their solar proposal as a PDF, photo, or screenshot. BidProof then checks the proposal against independent data rather than relying on the seller’s internal model. The resulting report covers the production estimate, project price, savings math and incentives, financing presentation, storage and backup claims, contractor information, and any missing details. For proposals that include a contract, the service also checks the contract terms. The report is delivered as a digital document that can be downloaded or printed, and it includes a clear explanation of what was verified, what needs further review, what could not be checked, and specific questions to take back to the seller. Typical use cases include a homeowner who has received one or more solar bids and wants an objective assessment of whether the numbers and assumptions are realistic. The service is also useful for comparing two different proposals that show different savings figures. BidProof does not receive referral fees from installers and does not sell user documents or contact information. The service costs $49 for a bid review alone and $99 for a combined bid and contract review. There is no subscription required; each review is a one-time transaction. The service is independent of any solar installer and is built specifically for the homeowner.