Know Your Sun.
Own Your Savings.
The complete Android solar toolkit. GPS irradiance data, system sizing, ROI analysis, battery sizing, wire sizing, and financial modeling — all in one app. Free to start. $5.99 to unlock everything.
Why Engineers Choose SolarWise Pro
Every tool you need for professional solar design — from irradiance data to financial modeling.
GPS Solar Irradiance
No Internet Required
Tap "Detect My Location" and get 12 months of NASA/PVGIS peak sun hour data for your exact GPS coordinates — cached offline after first use.
NPV · IRR · LCOE
25-Year Cash Flow
Professional ROI modeling with Net Present Value, Internal Rate of Return, Levelized Cost of Energy, and a full 25-year cash flow table.
Full System Design
From Load Profile to Cable Size — One App
Enter your appliance loads, get panel count, battery capacity, wire sizes (DC & AC, mm² / AWG), and charge controller specs — all in sequence.
One Payment. Everything. Forever.
No Subscription
$5.99 one-time unlocks 12+ calculators, 650+ component database, unlimited projects, PDF/CSV export, and removes all ads — forever.
13+ Professional Solar Tools
From irradiance data to financial modeling — everything a solar professional needs.
- Solar Irradiance CalculatorGPS-powered, 12-month data
- System Sizing CalculatorPanel count, inverter, wiring
- ROI & Payback CalculatorBasic results & payback period
- Tilt & Orientation OptimizerMaximize annual yield
- Projects ManagerUp to 3 solar projects
- DashboardSolar index & quick tools
- Advanced ROI ModelingNPV · IRR · LCOE
- Battery Sizing CalculatorLiFePO4 · AGM · Lead-Acid · Li-Ion
- Wire Sizing CalculatorDC & AC, mm² / AWG
- Carbon Offset Calculator27 countries, IEA grid factors
- Grid vs Solar vs HybridSide-by-side comparison
- Component Database650+ panels, inverters, batteries
- Charge Controller SizingPWM & MPPT
- Inverter SizingLoad-based recommendation
- Shading AnalysisLoss estimation & mitigation
- Bill Savings JournalTrack monthly electricity savings
- Unlimited ProjectsNo cap on solar project sites
- PDF & CSV ExportClean reports, no watermark
Your Location's Solar Potential —
Instantly. Offline. Worldwide.
Accurate solar irradiance data is the foundation of every solar design. SolarWise Pro retrieves historical peak sun hour data from NASA SSE and PVGIS TMY datasets for any coordinates on Earth — including monthly averages for all 12 months — so your system sizing and ROI calculations are grounded in real-world data, not guesses.
- GPS-powered — tap once, get 12 months of peak sun hours for your exact location
- Data sourced from NASA SSE and PVGIS TMY datasets — the same sources solar engineers trust
- Works in 27 countries with worldwide coverage; results cached offline after first use
- Enter any latitude and longitude manually to quote systems at client sites before visiting
See It In Action
Real screens from the SolarWise Pro app — every feature at your fingertips.
Dashboard — Projects, Solar Index & Quick Tools
Simple Pricing. Professional Tools.
No subscriptions. Pay once. Use forever.
SolarWise
Forever free. No card required.
- Solar Irradiance Calculator (GPS-powered)
- System Sizing Calculator
- ROI & Payback Calculator (basic results)
- Tilt & Orientation Optimizer
- Up to 3 solar projects
- Daily solar tips
- Advanced ROI (NPV · IRR · LCOE)
- Battery Sizing Calculator
- Wire Sizing Calculator
- Carbon Offset Calculator
- Grid vs Solar vs Hybrid Comparison
- Component Database (650+ items)
- Charge Controller & Inverter Sizing
- Shading Analysis
- Bill Savings Journal
- Unlimited Projects
- Clean PDF & CSV Export
Free tier shows ads. Ads removed with Pro.
SolarWise Pro
One-time payment. Lifetime access.
One-time purchase. No subscription. Forever.
- Everything in Free
- Advanced ROI: NPV · IRR · LCOE
- 25-year cash flow table & chart
- Battery Sizing (LiFePO4 · AGM · Lead-Acid · Li-Ion)
- Wire Sizing (DC & AC, mm² / AWG)
- Carbon Footprint Offset (27 countries, IEA data)
- Grid vs Solar vs Hybrid Comparison
- Component Database (650+ panels, inverters, batteries)
- Charge Controller Sizing
- Inverter Sizing
- Shading Analysis
- Bill Savings Journal
- Unlimited solar projects
- Clean PDF export (no watermark)
- CSV data export
- No ads
Purchases managed securely by Google Play. Restore anytime on any device you own. Price shown in USD; local pricing applies on Google Play.
Frequently Asked Questions
Get in Touch
Have a question about SolarWise Pro? We respond within 24 hours.