Solar Water Heater Calculator
Calculate solar water heater savings, payback period, and energy efficiency. Compare solar vs conventional water heating costs for your home.
Step 1: Household Details
Understanding Hot Water Needs
The average person uses 40-60 liters of hot water daily. Higher temperatures and larger households increase energy requirements for water heating.
Step 2: System & Cost Details
About Solar Water Heaters
Solar water heaters use sunlight to heat water, reducing conventional energy consumption by 50-80%. Payback periods typically range from 3-8 years depending on climate and usage.
Solar Water Heater Analysis Results
Annual Savings with Solar Water Heater
Water Heating Method Comparison
| Heating Method | Annual Cost | Annual Energy | CO₂ Emissions | Efficiency |
|---|
Savings Over Time
Solar Water Heater Calculation Formula
Energy Required = Mass × Specific Heat × Temperature Rise
The energy required to heat water is calculated using the formula Q = m × c × ΔT, where m is water mass, c is specific heat capacity (4.186 J/g°C for water), and ΔT is temperature difference.
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