★ PM Surya Ghar 2026 — ₹78,000 Subsidy Available

Solar Calculator India 2026

Free tools to calculate rooftop solar cost, PM Surya Ghar subsidy, ROI, and monthly savings — tailored for India.

📈 Calculate System Cost 🏛 Check ₹78,000 Subsidy 📈 Calculate ROI & Payback
50+
Free Calculators
₹78,000
Max PM Surya Ghar Subsidy
38 Cities
City-wise Data
10 Lakhs+
Calculations Done

🔥 Most Popular Calculators

Start here — used by 10 lakh+ homeowners across India

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MOST POPULAR

Solar Panel Cost Calculator

Enter your monthly bill → get system size, total cost, subsidy and net payable instantly.
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GOVT SCHEME

PM Surya Ghar Subsidy Check

Calculate exact ₹78,000 central subsidy + state top-ups. Check your eligibility in 30 seconds.
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25-YEAR FORECAST

Solar ROI Calculator

Exact payback period, IRR, and 25-year savings. See month-by-month when solar pays for itself.
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7 BANKS

Solar Loan EMI Calculator

Compare SBI, BOB, PNB, Canara, HDFC solar loans. Monthly EMI and full amortisation table.
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APPLIANCE-WISE

Inverter Size Calculator

Add your fans, ACs, lights — get exact VA capacity and battery Ah needed for your home.
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ALL 28 STATES

State-Wise Subsidy Calculator

Check extra state subsidies on top of PM Surya Ghar — Gujarat, Kerala, Uttarakhand and more.

🏠 Residential Solar Calculators

For Homeowners

Tools to plan, size, finance and optimise your home solar system

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Panel Requirement
Exact panels needed from your electricity bill.
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25-Year Savings
Lifetime wealth forecast with monthly breakdown.
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Battery Backup
Battery Ah needed for your backup duration.
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Net Metering Savings
Bill reduction from exporting solar to grid.
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Load Calculator
Total daily kWh from all your appliances.
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Solar vs Grid
25-year cost comparison — solar vs paying grid.
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Number of Panels
Panel count, roof area, and cost after subsidy.
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Bill Simulator
See your bill drop month-by-month after solar.
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Water Heater Calc
LPD capacity and savings for solar water heater.
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Solar for AC
Panels needed to power 1, 1.5 or 2 ton AC.
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Solar for EV
Panels needed to charge your electric vehicle.
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Carbon Footprint
CO₂ saved and trees equivalent over 25 years.

⚙ Technical & Advanced Calculators

For Installers & Engineers

Precision tools for system design, performance analysis and optimisation

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Panel Efficiency NEW
Real output after temp, soiling & wiring losses.
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Generation by City NEW
Exact units/day for 38 Indian cities.
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Irradiation Calc NEW
GHI and peak sun hours by city and month.
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Tilt Angle by City NEW
Optimal panel tilt for your city's latitude.
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Shading Loss NEW
Generation loss from tanks, trees, buildings.
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Cable Loss Calc NEW
DC/AC voltage drop and power loss %.
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Battery Runtime NEW
Backup hours for LFP, NMC & lead-acid.
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System Comparison NEW
Compare 2 systems — cost, LCoE, 25-yr savings.
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Export Tariff NEW
Net metering earnings — state-wise DISCOM rates.
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Degradation Forecast NEW
Year-by-year output forecast for 25 years.
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String Sizing
Series/parallel string config for your inverter.
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Wire Sizing
Cable gauge calculator for DC/AC wiring.
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Tilt Angle Calc
Optimal panel tilt for maximum annual output.
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Roof Area Calc
Panel layout planner for your rooftop space.
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Generation Calc
kWh output per day, month and year.

🔧 Maintenance & Performance

Optimise Your System

Protect your investment and maximise generation over 25 years

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Maintenance Cost NEW
Annual O&M budget for cleaning, AMC & inverter.
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Cleaning ROI NEW
Is regular cleaning worth it? Calculate net benefit.
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Panel Degradation
25-year output loss projection by panel type.
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Maintenance Services
Find verified cleaning and repair services near you.

🏛 Commercial & Sector Calculators

For Businesses

Industry-specific ROI and savings calculators

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Commercial Solar
For offices, factories & schools.
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Industrial Solar
For factories & large industrial units.
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Hospital Solar
Energy solutions for healthcare facilities.
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Hotel Solar
Solar ROI for the hospitality sector.
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Restaurant Solar
ROI for cafes, hotels & restaurants.
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School Solar
For colleges & educational institutes.
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Warehouse Solar
For cold storage & logistics hubs.
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Manufacturing
Savings for FMCG & assembly lines.
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Agricultural Pump
Solar water pump sizing for farmers.
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PM KUSUM Scheme
Eligibility, subsidy & application for farmers.
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Business ROI Calc
40% accelerated depreciation & 10-yr cash flow.
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OPEX vs CAPEX
Compare ownership vs rental model ROI.

💼 Solar Business & Installer Tools

For Installers & Developers

Financial, bidding and business planning tools for solar professionals

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Project Feasibility NEW
NPV, IRR, payback & LCoE full analysis.
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Business Profit NEW
Monthly profit & margin for solar installers.
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Lead Cost Calc NEW
CPL, CPA & ROAS for solar marketing.
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Solar Tender NEW
Live SECI, NTPC & DISCOM tenders + bid calc.
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Proposal Generator
Generate client proposals with one click.
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Depreciation Calc
40% accelerated depreciation tax benefit.

💹 Solar System Price Guide 2026

After Subsidy

Exact 2026 prices after PM Surya Ghar subsidy for every system size

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1kW Solar Price
Cost after ₹30,000 subsidy.
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2kW Solar Price
Cost after ₹60,000 subsidy.
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3kW Solar Price ⭐
Most popular. ₹1.02L after ₹78,000 subsidy.
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4kW Solar Price
Full breakdown with subsidy & installation.
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5kW Solar Price
Best for 300–400 units/month homes.
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6kW Solar Price
₹2.52L after ₹78,000 subsidy.
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7kW Solar Price
₹2.87L after ₹78,000 subsidy.
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8kW Solar Price
₹3.52L after ₹78,000 subsidy.
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10kW Solar Price
₹4.72L after ₹78,000 subsidy.
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Panel Price List
Brand-wise ₹/Watt — Adani, Waaree, Tata.
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Battery Price List
LFP & lead-acid prices for 2026.
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Inverter Price List
String, hybrid & microinverter prices.

🔍 Solar Resources & Services

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Find Solar Installers

Browse 500+ verified solar installers near you. Filter by city, state & ratings.
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Solar Marketplace

Shop solar panels, inverters and batteries directly from verified manufacturers.
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Solar Blog & Guides

Expert articles on subsidies, installation tips, maintenance, and solar news India.
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Community Forum

Ask questions, share experience, and get advice from India's solar community.
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DISCOM Tariff Database

Latest electricity tariff rates for 38+ DISCOMs across India.
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PM Surya Ghar Complete Guide

Eligibility, application steps, subsidy amounts and FAQs for PM Surya Ghar Yojana.

📍 Solar in Your City

City-specific guides with DISCOM info, local subsidies and verified installers

🏠 Mumbai 🏠 Pune 🏠 Bangalore 🏠 Delhi 🏠 Hyderabad 🏠 Ahmedabad 🏠 Chennai 🏠 Kolkata 🏠 Jaipur 🏠 Surat 🏠 Nagpur 🏠 Lucknow 🏠 Indore 🏠 Bhopal 🏠 Vizag 🏠 Jodhpur 🏠 Vadodara 🏠 Thane
View All 81 City Guides + All Calculators →

🌐 Available in Your Language

Solar calculators in 6 Indian languages

EN English HI हिन्दी GU ગુજરાતી MR मराठी TA தமிழ் TE తెలుగు

Why Use SolarCalculators.in?

SolarCalculators.in is India's most comprehensive solar calculator platform — with 50+ free tools covering every aspect of your solar journey. Whether you're calculating the cost of a 3kW rooftop system, checking your PM Surya Ghar subsidy eligibility, or sizing an inverter for your home, our calculators use real 2026 data: current market prices, actual DISCOM tariffs, and the latest government subsidy amounts.

What Makes Our Calculators Different

Quick Formula: How to Size Your Solar System

System Size (kW) = Monthly Units ÷ 120
Example: 360 units/month ÷ 120 = 3 kW system — cost: ₹1.02L after ₹78,000 PM Surya Ghar subsidy

For precise sizing accounting for your specific appliances, roof area, city irradiance, and shading — use our Solar Cost Calculator or Panel Requirement Calculator.