Solar Spotter & PV Calculator

Solar Spotter & PV Calculator

Expressway Apps

Available on Google Play
3.1(1,011)
500,000+ installsFreeTools

Updated Jul 9, 2026 · v1.72

CompareView on Google Play
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Optimize solar panels with PV tools, sun tracking & angle analysis

Solar Spotter & PV Calculator is a complete solar planning and calculation app designed for homeowners, solar installers, engineers, and anyone interested in solar energy. Whether you're installing a new rooftop solar system or improving an existing setup, this app helps you adjust panel direction, find the right tilt angle, estimate system size, and better understand potential energy production. Make informed solar decisions using clear data and practical tools. ──────────────────────── ☀️ PRECISION SOLAR SPOT & ALIGNMENT Incorrect panel direction can reduce solar production. Using device sensors and real-time GPS location data, the app calculates: • Current orientation (azimuth) • Tilt angle (inclination) • Latitude & longitude • Optimal south-facing direction • Recommended tilt based on your location Values update instantly as you move your device. Better alignment can help improve energy production and reduce potential energy loss over time. ──────────────────────── 🌞 SUN PATH & SHADOW TRACKER Even small shadows can impact panel performance. Visualize: • Real-time sun elevation & azimuth • Sunrise, sunset & solar noon • Golden hour & twilight timing • Shadow length & direction Use satellite map view with location pin and shadow direction indicator to plan better panel placement. Avoid common installation positioning mistakes. ──────────────────────── 🔋 ADVANCED SOLAR & BATTERY CALCULATORS Plan your solar system with confidence. Battery Calculator Estimate required battery capacity using: • Battery Ah • Number of batteries • Load in watts • Peak sunshine hours Solar Energy Calculator Estimate daily solar generation in kWh based on panel performance. PV Performance Estimator Calculate: • Peak power (kWp) • Mean yearly production • Optimal orientation & inclination Pump Power Calculator Designed for solar water pumping systems using: • Flow rate (m³/hr) • Pump head (meters) • System efficiency (%) • Motor efficiency (%) Accurate calculations help you choose the right system size and avoid unnecessary equipment. ──────────────────────── 📐 OPTIMAL ANGLE & SOLAR TIME DATA Solar efficiency depends heavily on correct tilt and timing. Access: • Monthly optimal angle recommendations • Hour angle • Equation of time • Solar time correction • Sunrise & sunset timing Matching panel tilt to your latitude can help improve annual energy production. Small angle adjustments can create measurable output differences. ──────────────────────── 💰 SOLAR SYSTEM SIZE & COST ESTIMATION Before installing your solar system, understand your key numbers. Estimate: • Required panel capacity (kWp) • Roof space utilization • Inverter oversizing factor • System voltage • Electricity cost per kWh • Monthly consumption coverage • Basic system value estimation Make data-driven decisions instead of relying on rough estimates. ──────────────────────── 📊 SOLAR EFFICIENCY FEEDBACK Not sure if your panels are aligned correctly? The built-in efficiency indicator shows: • Low efficiency (adjustment recommended) • Maximum efficiency (optimal alignment) Optimize your setup for improved solar performance. ──────────────────────── 🌍 GLOBAL COMPATIBILITY Works worldwide using accurate latitude and longitude coordinates. Suitable for: • Rooftop solar systems • Off-grid installations • Solar water pumps • Residential & small commercial systems • Renewable energy students & professionals ──────────────────────── 🔒 PRIVACY & PERMISSION This app requires ACCESS_FINE_LOCATION only to calculate accurate solar position, sunrise/sunset timing, and sun path tracking for your area. Location data is not stored, shared, or sold. All calculations are estimations based on user inputs and standard engineering assumptions. Actual results may vary depending on installation conditions. Consult a certified professional for final installation decisions. Download now and plan your solar setup with better clarity and control. ☀️

Released
March 17, 2021

5 years on Google Play

Version
1.72
Updated
Jul 9, 2026
Content Rating
Everyone
Installs
500,000+
Developer
Expressway Apps
Website
https://expresswayapps.blogspot.com
Email
heavenlypack@gmail.com
In-app purchases
No

This app isn't currently appearing in any tracked top charts.

Rating breakdown

5
478
4
26
3
53
2
0
1
452