☀️ Solar Calculator
Welcome to site Whether you’re a homeowner, business owner, or solar installer, our suite of calculators helps you make smarter, data-driven decisions about solar energy—no matter where you are in the world.
🌞 Solar Load Calculator
Estimate energy demand for solar sizing.
🔋 Backup Backup Time Calculator
Calculate battery backup duration
⚡battery Charge Time Calculator
Calculate battery charging time.
📈Solar System ROI & Payback Calculator
Analyze system cost, savings, and payback period.
🔌Power Consumption calculator
Track daily, monthly, or yearly electricity usage.
💲 Cost per Watt Calculator
Compare solar installation costs per watt.
panel Life calculator
Estimate the lifespan of your solar panels.
Each calculator above solves a specific solar challenge. Use them individually or together to design your ideal solar setup.
Why Use These Calculators?
Avoid over- or under-sizing your solar setup
Understand battery behavior and backup reliability
Forecast solar energy savings and break-even timelines
Compare solar panel installation costs with precision
Optimize your energy usage and reduce your electricity bill
Plan for solar inverter efficiency, net metering, and kWh-based billing
Real-World Use Cases
- Homeowners: Plan solar installations for homes with accurate load and ROI data.
- Installers: Use runtime and cost calculators to design reliable, cost-effective systems.
- Businesses: Forecast energy savings and justify solar investments with financial clarity.
Frequently Asked Questions
How much solar power do I need for my house?
It depends on your daily energy usage in kWh. Use the Solar Load Calculator to input your appliances and get an accurate system size recommendation.
What size solar system is best for a small home?
A typical small home may need a 3kW to 5kW system, depending on usage. The calculator adjusts based on your specific load.
How to calculate solar panel requirements for my appliances?
List all appliances, their wattage, and daily usage hours. The Solar Load Calculator will convert this into total kWh and suggest panel count.
What is the cost of installing solar panels?
Use the Cost per Watt Calculator to estimate total installation cost based on system size and local pricing.
How many solar panels do I need to run an AC?
A 1-ton AC typically consumes 1.2–1.5 kWh per hour. Depending on sunlight hours, you may need 4–6 panels (300W each). Use the load calculator for precision.
How long will my solar battery last during outages?
Use the Battery Backup Runtime Calculator to input your battery specs and load. It will estimate runtime in hours.
How to calculate battery backup time for solar systems?
Input battery capacity (Ah), voltage, and load wattage. The calculator converts this into usable runtime.
What is the best battery size for a 3kW solar setup?
It depends on your backup needs. For 3kW systems, a 200Ah–300Ah battery bank is common. Use the charge time and runtime calculators to fine-tune.
How long does it take to charge a solar battery?
Charging time depends on panel wattage, sunlight hours, and battery capacity. The Battery Charge Time Calculator gives you exact estimates.
How to estimate solar battery runtime for my home?
Use your total load in watts and battery specs. The runtime calculator will show how long your system can sustain that load.
How much money can I save with solar panels?
Savings depend on your electricity rate, system size, and sunlight availability. The Solar System ROI Calculator helps you forecast savings and payback.
What is the payback period for solar panel investment?
Typically 3–7 years, depending on energy rates and incentives. Use the ROI calculator for personalized estimates.
Is solar energy worth it for small businesses?
Yes—especially with high energy bills and net metering. Solar reduces operating costs and improves sustainability.
How to calculate ROI for solar panel installation?
Input system cost, energy savings, and incentives. The ROI calculator will show your break-even point and long-term gains.
What are the long-term savings from switching to solar?
Over 20 years, solar can save thousands in energy costs. It also protects against rising electricity rates.
How to calculate daily electricity usage in kWh?
List all appliances, their wattage, and usage hours. The Power Consumption Calculator will total your daily kWh.
What is my monthly energy consumption?
Use the power calculator to estimate daily usage, then multiply by 30 for monthly totals.
How to reduce power consumption with solar?
Use solar to offset high-usage appliances. Monitor usage with the power calculator and optimize with efficient devices.
How much energy does a fridge use per day?
A typical fridge uses 1–2 kWh/day. Input exact specs into the load calculator for accurate results.
How to estimate electricity bill savings with solar?
Compare your monthly kWh usage with solar output. The ROI calculator will show your savings based on local energy rates.
What is the cost per watt of solar panels?
Use the Cost per Watt Calculator to compare pricing across vendors and technologies.
How to compare solar panel prices by wattage?
Input panel wattage and total cost. The calculator will show cost per watt, helping you choose the best value.
Which solar system is cheapest for home use?
Smaller systems (3kW–5kW) are more affordable. Use the cost calculator to compare options based on your budget.
How to calculate total cost of solar installation?
Include panel cost, inverter, batteries, and labor. The cost calculator helps you estimate the full package.
What is the most cost-effective solar setup?
Systems with high-efficiency panels, smart inverters, and net metering tend to offer the best ROI. Use all calculators to design your ideal setup.