Solar Calculator by SolarXnest
The SolarXnest Solar Calculator is an advanced, user-friendly tool created to help homeowners, businesses, and solar enthusiasts accurately estimate their solar system size, number of panels, inverter capacity, battery backup requirement, and total solar installation cost within seconds. Unlike basic online calculators, this tool is specifically designed for Indian conditions, including realistic peak sun hours, electricity tariffs, and system loss factors found across different states.
With just your monthly electricity bill or energy consumption (kWh), the calculator intelligently computes your daily usage, adjusts it for system losses, and recommends the ideal kW capacity, optimal panel wattage, and a reliable solar inverter size. It even provides an advanced battery autonomy estimate, helping you understand how many kWh of backup you need for power cuts or hybrid/off-grid setups.
What makes the SolarXnest Solar Calculator different from other tools in the market is its high accuracy, real-time cost estimation, and mobile-responsive interface that works seamlessly on phones, tablets, and desktops. It uses industry-standard formulas, up-to-date Indian solar benchmarks, and supports 450W, 540W, and 600W solar panel calculations. Most calculators only give generic numbers, but the SolarXnest tool generates customised system sizing, panel count, and investment estimate tailored to your location and load requirements.
Whether you’re comparing rooftop solar, planning solar savings, or exploring residential and commercial solar solutions, this calculator is your trusted, precise, and professional-grade decision-making tool.
SolarXnest — Solar Calculator
Calculate system size, number of panels, inverter capacity, battery requirement and estimated cost.
Frequently Asked Questions
The SolarXnest Solar Calculator is built to give transparent, fast, and reliable estimates tailored for Indian solar conditions. Use these FAQs to better understand each step before making an informed solar investment.
The SolarXnest Calculator estimates the ideal solar system size, number of panels, inverter rating, battery capacity, and approximate installation cost based on your electricity usage.
It helps you understand the exact system you need before contacting an installer.
The calculator uses industry-standard formulas and India-specific solar data, giving highly reliable estimates.
Real-world installation may vary based on roof direction, shading, and site conditions.
Use monthly consumption (kWh) if you know it.
If not, enter your monthly bill, and the calculator will convert it automatically.
Both methods provide accurate sizing.
Peak Sun Hours represent the number of sunlight hours strong enough to generate solar power.
Most Indian cities receive around 5 PSH.
It accounts for energy losses caused by wiring, dust, inverter efficiency, and temperature.
This ensures your solar system is sized correctly.
Panel wattage determines how many panels you need to achieve the required solar capacity.
Higher-wattage panels reduce the total number of panels.
Cost = Total system wattage × Price per watt (Rupees/W).
This includes panels, inverter, structure, wiring, and installation.
Not for grid-tied systems.
Battery is optional and useful during power cuts.
If selected, the calculator estimates battery size in kWh.
Yes. You can scale consumption inputs to get accurate estimations for homes, shops, offices, and industries.
The logic works for all system sizes.
Yes, the estimates are detailed and installer-friendly.
They help speed up the quotation process.