A professional offline financial analysis tool that calculates costs, ROI, payback periods, and tax incentives — all stored privately on your device.
Everything you need to make smart, confident solar investment decisions — without an internet connection.
Calculate solar panel investment costs for various system sizes with detailed equipment and installation breakdowns.
Comprehensive ROI analysis with detailed projections and payback period calculations across system lifetime.
Track monthly and yearly financial impact with detailed cash flow projections over the full system lifetime.
Compare loan vs. cash purchase scenarios with detailed cost-benefit analysis for every financing method.
Calculate federal and state tax rebates and incentives automatically to maximize your solar investment savings.
Zero internet required. All calculations run locally on-device with absolutely no data transmission.
Assess how solar installation affects your property value using industry-standard appraisal calculations.
Calculate long-term energy savings vs. utility rate inflation with projections out to 25 years.
Generate export-ready financial reports and summaries for professional client presentations and planning.
Three simple steps to a fully-informed solar investment decision.
Input your location, system size, current electricity costs, and financing preferences. The app guides you through every field.
Instantly see ROI, payback periods, tax savings, and 25-year cash flow visualizations — all calculated offline on your device.
Export a professional report and move forward with confidence, armed with precise data tailored to your specific situation.
Intuitive, data-rich screens designed for professionals and homeowners alike.
All calculations run locally. Use in the field, on-site, or anywhere with zero connectivity.
Your financial data never leaves your device. No accounts, no cloud sync, no tracking.
One download, full access. No hidden charges or paywalled features — ever.
Calculations aligned with industry standards used by certified solar assessors.
Automatically accounts for current tax credits and rebates to maximize your savings.
"The Solar Investment Calculator gave me exact numbers before I ever called a single installer. I knew my payback period, my tax credit, and my 20-year savings before the first meeting. That's real power."
Real feedback from homeowners, contractors, and energy professionals.
"This app helped me understand the full financial picture of solar before I invested a single dollar. The detailed calculations gave me confidence to move forward — and I haven't looked back."
"As a solar contractor I use this daily for client estimates. The offline functionality and professional-grade export reports are exactly what I needed. My clients are always impressed."
"The tax incentive calculator alone saved me thousands in planning costs. And knowing all my financial data stays on my device — not some server — made it an easy choice."
Everything you need to know about the Solar Investment Calculator.
No — the app works fully offline. All calculations are performed locally on your device without any internet connection required. Use it anywhere, anytime.
Absolutely. We do not collect, store, or transmit any data whatsoever. Your calculations and financial information remain entirely on your device — always.
Yes. The app generates professional export-ready financial reports and summaries ideal for sharing with clients, installers, or financial advisors.
Our algorithms are based on industry-standard methodologies and provide reliable estimates for planning purposes. For final decisions, we recommend verifying with a certified solar professional.
Yes. The app includes calculations for federal investment tax credits (ITC) and state-level incentives and rebates, helping you maximize your total savings.
We are dedicated to making renewable energy accessible through innovative financial tools. Our mission is to empower homeowners and businesses with the information they need to make informed solar investment decisions — without relying on a salesperson's pitch.
Our professional-grade calculators are built with industry standards and designed with privacy and security as first principles. We believe in transparent, accurate financial analysis that accelerates the adoption of clean energy.
Visit our website at thermodyn.store to learn more about our commitment to sustainable energy solutions.
Have questions or feedback? We typically respond within 24 hours.
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