Solar & Battery Design Tools for India Design Systems, Calculate ROI & Find Installers
Design solar and battery systems across India using Photonik's professional design platform. India is rapidly expanding its solar capacity with ambitious targets under the National Solar Mission and PM Surya Ghar Yojana. The country offers central subsidies up to ₹78,000 for rooftop solar, with many states providing additional incentives.
ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in India using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.
Solar Design India
Energy Usage
Understanding your household's daily energy consumption is essential for designing an effective solar system in India. The average Indian household uses between 8-12 kWh per day, with energy-efficient properties often using significantly less. This consumption reflects India's climate, home sizes, and lifestyle patterns, with higher usage during hot summers for cooling and moderate usage during cooler months.
Before installing solar, consider reducing your energy consumption through improved insulation and energy-efficient appliances. This is particularly valuable in India, where central and state subsidies make solar more affordable, and reducing consumption can lower required system size and improve returns.
Typical energy usage per person per day in India:
Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.
Solar System Sizing
You'll need around 3.9kW of solar to match your average Indian household consumption. We recommend sizing between 5.9kW and 7.9kW for optimal results, accounting for daily and seasonal variations. India enjoys excellent solar potential, with most regions averaging 4.5-5.5 kWh/kW/day annually, amongst the highest in the world, with consistent generation throughout most of the year.
A 6.6 kW system in India generates approximately 29.1 kWh daily on average, with seasonal variation from 3.68 kWh/kW/day in December to 4.86 kWh/kW/day in April. India's exceptional solar irradiance, combined with central and state subsidies, makes solar particularly attractive for homeowners across the country.
Solar & Energy Savings
Calculate Heat Pump & EV Savings
Electrify your home by replacing gas heating, petrol vehicles, and other fossil fuel appliances with electric alternatives powered by clean solar energy. This delivers significant additional financial savings and substantial carbon emission reductions. Our calculator helps you compare costs and model the financial impact of switching to electric appliances and vehicles.
How Solar Reduces Your Electricity Bills
The calculations below show how your electricity bills change with solar. Your Old Bill of - per month (- annually) is calculated from your total energy consumption multiplied by the grid electricity rate. Your New Bill of - per month (- annually) accounts for solar generation, the percentage you use directly (self-consumption), remaining grid consumption, and feed-in credits for excess energy exported to the grid. This results in monthly savings of - (- annually).
Battery Storage India
Solar Battery Sizing
With solar-only (no battery), a 6.6 kW system provides approximately 50% self-usage in India, depending on your consumption patterns, drawing 50% from the grid. Adding a 10 kWh battery increases energy independence to approximately 99% annually, reducing grid reliance to 1%. Battery storage is valuable in India, allowing you to store excess daytime generation for evening use and providing backup power during frequent power cuts, maximising the value of your solar investment.
Net metering policies vary by state and distribution company in India, with rates typically ranging from ₹2-6 per kWh depending on your area. Battery storage is particularly valuable given frequent power cuts, providing backup power during outages. For accurate battery savings and ROI calculations specific to your location and distribution company, use the full Photonik design tool.
Energy Self Sufficiency Calculator*
*Note: This calculator provides simplified battery self-sufficiency estimates. For accurate per-hour simulations that account for solar generation patterns, consumption timing, battery charging/discharging cycles, and efficiency losses across all seasons, use the full Photonik design tool.
Panel Placement Tool India
This is a simple panel placement tool that lets you quickly estimate panel count for a single roof area. Try Photonik for advanced features:
- Multiple panel groups
- Custom roof angles
- Panel orientation
- Shade loss calculations
- Panel selection (1000+ models)
- Full integration with our design tool
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Solar & Battery System Cost India
Understanding Solar & Battery System Costs
A 6.6 kW solar system in India costs approximately ₹493,284, while adding a 10 kWh battery increases the total to around ₹994,849. India offers central subsidies up to ₹78,000 for rooftop solar under PM Surya Ghar Yojana, with many states providing additional subsidies ranging from ₹10,000-25,000 per kW. Solar-only systems typically pay for themselves in around 8.6 years in India, whilst adding battery storage usually extends payback but significantly improves energy independence and provides backup power. India's excellent solar potential, combined with central and state subsidies, makes solar particularly attractive, with many systems achieving payback in under 5-7 years.
The cost breakdown shows estimates for equipment costs, installation labour, and applicable taxes. Adjust system size and battery storage to see how it affects total investment and payback periods. India has excellent installer coverage, with qualified installers operating throughout major states, providing competitive pricing and quality installations.