Solar Heating Calculator

Calculate your solar heating potential, cost savings, and return on investment. Discover how solar energy can reduce your heating costs and environmental impact.

Solar Heating Calculator

Calculate solar heating potential and savings

Monthly energy usage

Cost per kilowatt-hour

Total living space size

Solar Heating Benefits

Discover the advantages of solar heating systems for your home

Eco-Friendly

Reduce your carbon footprint with clean, renewable solar energy

Long-term Savings

Significantly reduce heating costs over 20+ years

Energy Independence

Reduce dependency on traditional energy sources

How Solar Heating Works

Understanding the technology behind solar heating systems

1

Solar Collection

Solar panels collect sunlight and convert it to energy

2

Heat Transfer

Energy is transferred to your heating system

3

Distribution

Heated water or air is distributed throughout your home

4

Savings

Reduced energy bills and environmental impact

  1. 1

    Assess Roof Space

    Measure available south-facing roof area (best), or east/west facing (10-20% less efficient). Need 20-40 mÂČ (200-400 sq ft) for typical home. Check for shade from trees or buildings - even partial shade reduces output significantly.

  2. 2

    Find Solar Irradiance

    Look up your location's average daily solar irradiance (kWh/mÂČ/day). Use online tools or weather data. Sunny climates: 5-7, moderate: 3-5, cloudy: 2-3. Higher irradiance = more energy = faster payback.

  3. 3

    Select Panel Efficiency

    Choose solar panel efficiency: Budget 15-17%, standard 17-19%, premium 19-22%. Higher efficiency = more power from less space. Worth premium if roof space is limited.

  4. 4

    Input Electricity Rate

    Enter current electricity cost per kWh from your bill. Solar savings directly tied to electricity rate - higher rates = faster payback. Include all charges (energy, delivery, taxes) for accuracy.

  5. 5

    Calculate ROI and Savings

    Review system cost, annual energy production, savings, and payback period. Include 30% federal tax credit. Typical payback: 8-12 years. System lasts 25-30 years, providing free electricity for 15-20 years after payback.

Pro Tip: Use Ctrl+Enter to calculate quickly, or Ctrl+R to reset the form.

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