# Solar PV Calc - Solar Designer
> Design off-grid solar systems. Calculate panels, battery & MPPT controller free.
Canonical page: [https://chrome-stats.com/d/com.darskee.solarcalc](https://chrome-stats.com/d/com.darskee.solarcalc)
## Overview
- **ID:** `com.darskee.solarcalc`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** DarskeeWorks
- **Category:** TOOLS
- **Downloads:** 2,298
- **Version:** 5.0
- **Last updated:** 2026-05-02
- **First published:** 2026-03-12
- **Publisher country:** PH
- **Size:** 21 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.darskee.solarcalc)
- **Website:** [https://darilquervo.com/app-ads.txt](https://darilquervo.com/app-ads.txt)
- **Privacy policy:** [https://docs.google.com/document/d/1EQhiximPMmnl\_YZREzKfGlG8r2Yi6lCWQ\_agalyPG8Q/edit?tab=t.0](https://docs.google.com/document/d/1EQhiximPMmnl_YZREzKfGlG8r2Yi6lCWQ_agalyPG8Q/edit?tab=t.0)
## Description
Solar PV Calc is a FREE professional solar power system designer and calculator.
Used by homeowners, solar installers, and engineers to size complete off-grid and
backup solar systems using real engineering formulas.
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⚡ WHAT YOU CAN CALCULATE
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✓ Solar panel array size (Wp) from daily energy needs
✓ MPPT charge controller amperage (sized by array, not load)
✓ Pure sine wave inverter sizing with 25% safety margin
✓ Battery bank capacity (Ah) at 50% depth of discharge
✓ DC & AC circuit breaker ratings
✓ PV string fuses and surge protection devices (SPD)
✓ Complete safety equipment list
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🔧 KEY FEATURES
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✓ Add household appliances with wattage, voltage & daily hours
✓ 12V / 24V / 48V DC system support
✓ Automatic current calculation (I = W/V)
✓ Professional wiring diagrams
✓ Complete materials shopping list with quantities
✓ Step-by-step installation guide
✓ Financial ROI calculator — payback period & 25-year savings
✓ Cable sizing & panel angle calculator (Advanced Tools)
✓ Calculation history — save and compare multiple system designs
✓ Environmental impact — CO₂ saved and trees equivalent
✓ 100% offline — works without internet connection
✓ All data saved locally — no account required
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📐 REAL ENGINEERING FORMULAS
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• Daily Energy (kWh) = Σ(Watts × Hours) / 1000
• Solar Array (Wp) = Daily kWh / (Peak Sun Hours × 0.75)
• Inverter (W) = Total Load × 1.25
• MPPT Controller (A) = Array Wp / Battery V × 1.25
• Battery Bank (Ah) = Daily Wh / (System V × 0.50)
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🌏 DESIGNED FOR THE PHILIPPINES
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• 5 peak sun hours (Philippine average)
• 230V AC, 50Hz standard output
• 550Wp monocrystalline panel sizing
• MPPT models available in the Philippine market
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⭐ PRO VERSION (OPTIONAL)
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Go PRO with a single one-time purchase to enjoy a completely
ad-free experience. All features remain free — PRO only removes ads.
Built by DarskeeWorks — solar engineering meets mobile technology.
Note: This app provides educational estimates for planning purposes.
Always consult a certified solar installer before any actual installation.
## Rankings
- #909,591 — Overall
## Permissions and access
### Permissions
- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.darskee.solarcalc.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`
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Source: [Chrome-Stats](https://chrome-stats.com/d/com.darskee.solarcalc)