Solar Estimator

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Everyone
10+
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Content rating
Everyone
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About this app

Tired of overpaying for electricity? Take control with Solar System Cost Calculator — a powerful offline solar sizing tool built specifically for Pakistan.

Simply enter your monthly electricity usage (kWh), required backup hours, and your current electricity rate. The app instantly calculates and prices a complete solar system tailored to your needs.

☀️ SOLAR PANELS

Choose from a pre-loaded catalogue of real solar panels from leading manufacturers:

• LONGi Solar
• Jinko Solar
• JA Solar
• Trina Solar
• Canadian Solar
• Astro Energy

The app supports P-type and N-type modules from 540W to 610W.

Panel quantity is calculated using:

• Your daily energy demand
• 5.5 peak sun hours
• 15% real-world system loss correction

🔋 BATTERY BANK

Select from high-quality LiFePO4 batteries from:

• Inverex
• Pylontech
• Narada
• Crown
• Exide

Available battery configurations include:

• 25.6V
• 48V
• 51.2V

Battery quantity is calculated using:

• Backup hour requirement
• Battery voltage
• Depth of discharge
• Charge efficiency

⚡ INVERTER SELECTION

Browse hybrid and on-grid inverters from trusted brands:

• Inverex
• Knox
• Growatt
• Fronus
• Huawei
• Solis

Supported inverter sizes:

• Single-phase and three-phase models
• Capacity from 3 kW to 12 kW

The app automatically warns you if the selected inverter is undersized for your system.

💰 FULL COST BREAKDOWN

Get a complete financial overview including:

• Itemised cost for panels
• Battery bank cost
• Inverter cost
• Earthing and installation estimate

Includes a visual pie chart showing percentage cost distribution.

All pricing is displayed in Pakistani Rupees (PKR).

📈 ROI & PAYBACK ANALYSIS

Understand the financial return of your solar investment:

• Estimated annual energy generation
• Annual savings based on your electricity rate
• Payback period in years
• Return on investment (ROI %)

🌱 WHY THIS APP?

✅ Works 100% offline — no internet required
✅ Pre-loaded with real market prices in PKR
✅ Covers the most popular solar brands in Pakistan
✅ Uses engineering-grade solar formulas
✅ No account required
✅ No ads, no tracking, no data collection
✅ Completely free to use
Updated on
Mar 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
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What’s new

Third release of Solar System Cost Estimator.

Features:
• Calculate solar system size based on monthly electricity usage
• Automatic solar panel quantity calculation
• Battery bank sizing based on backup hours
• Inverter size recommendation with safety margin
• Complete system cost breakdown in PKR
• ROI and payback period analysis
• Preloaded database of solar panels, batteries, and inverters
• Clean and modern solar-themed interface
• Works 100% offline with no data collection