About Solar ROI Pro

Engineering precision for every solar decision.

The Mission

Solar ROI Pro exists to professionalize solar feasibility analysis. We bridge the gap between PhD-level photovoltaic engineering and field-ready sales tools, giving installers and homeowners the same mathematical rigor that utilities and research labs use.

What We Built

• Uses PVGIS EU JRC data (same dataset used by European research institutions)
• Models system losses (cable losses, inverter efficiency curves, soiling, temperature derating)
• Calculates 25-year cash flow projections with regional tariff systems
• Supports 8 languages and 7 national tariff jurisdictions
• Generates professional PDF reports for client presentations

Built for installers who need to close deals on-site. Built for homeowners who refuse to make $10,000 decisions on guesswork.

Who We Are

Solar ROI Pro is operated as a sole proprietorship (preduzetnik) registered in the Republic of Serbia. We are engineers first, marketers second. Our background spans photovoltaic system design, financial modeling, software engineering, and cross-jurisdictional regulatory analysis.

We do not represent any specific solar component manufacturer. Our calculations are vendor-neutral.

Audience

• Solar installation contractors in 8+ countries needing rapid feasibility tools
• Engineering consultants preparing client proposals
• Homeowners in the EU, USA, and UAE evaluating solar investments

Why We Charge

The free calculator covers basic feasibility. The Professional tier ($19.99 one-time) unlocks multi-array configurations, 25-year cash flow exports, custom tariff input, PDF reports with branding, battery storage modeling, and priority support. We charge once, not monthly.

Roadmap

• Component recommendation engine with transparent affiliate links
• Multi-language PDF reports
• API access for solar software integrators

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