SFounder
Salman Ahmed
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1 project building the future
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AI-friendly Markdown · structured for AI citations
1 project building the future
Wattcrunch Solar Calculator is a free online tool that estimates solar panel system size, costs, savings, payback period, and incentives for US homeowners. It uses real data from NREL PVWatts and current 2026 rules to provide accurate, transparent calculations without requiring user accounts or emails.
This tool is des