Carbon Footprint Calculator
Calculate environmental impact and CO2 savings from your solar energy system
Solar System Configuration
Energy Generation
CO2 Savings
Environmental Impact
Quick Summary
Environmental Impact Breakdown
How Carbon Footprint Calculation Works
Energy Generation
Daily generation = System Size × Peak Sun Hours × System Efficiency = 5kW × 5h × 80% = 20 kWh/day
CO2 Savings Calculation
CO2 saved = Energy Generated × Grid Carbon Intensity = 7,300 kWh × 0.82 kg/kWh = 5,986 kg CO2/year
Environmental Equivalents
• Trees: 1 tree absorbs ~840 kg CO2 over 40 years → 1,41,005.93 kg ÷ 840 = 168 trees
• Coal: 1 kg coal = 2.42 kg CO2 → 58,267 kg coal not burned
System Degradation
Solar panels degrade at ~0.5% per year. Lifetime calculation accounts for reduced output over 25 years.
Your Environmental Impact
Climate Benefits:
- • CO2 Reduction: 141.01 tons over 25 years
- • Clean Energy: 171.96 MWh renewable generation
- • Grid Impact: Reduced fossil fuel dependency
- • Air Quality: Zero operational emissions
Equivalent Impact:
- • Forest: Like planting 168 trees
- • Transport: Avoiding 3,49,025 car miles
- • Energy: Powering 57.3 homes for 1 year
- • Travel: Equivalent to 353 flight offsets
Your 5kW Solar System Impact:
The Solar Carbon Footprint Calculator is for homeowners and businesses who want to understand the environmental impact of switching to solar power. Based on your system size, sunlight hours and India's grid carbon intensity, it estimates how much CO2 you avoid emitting each year and over your system's lifetime, along with everyday equivalents like trees planted and car miles avoided.
Solar Carbon Footprint Calculator - FAQs
How is the CO2 saved by a solar system calculated?
We estimate yearly generation (kWh) from your system size, sunlight hours and efficiency, then multiply by India's average grid carbon intensity (about 0.82 kg CO2/kWh) to get CO2 avoided, accounting for roughly 0.5% annual panel-output degradation over the system's life.
Why does grid carbon intensity matter?
The CO2 avoided depends on how carbon-intensive the electricity your solar system replaces would have been. This varies by state and changes over time as India's grid adds more renewables, so it's an estimate rather than a fixed constant.
What do the "trees planted" and other equivalents mean?
They translate your CO2 savings into everyday comparisons — for instance, one tree absorbs roughly 840 kg of CO2 over 40 years — to make the environmental impact easier to visualize.
Does panel degradation affect the CO2 calculation?
Yes, panels lose about 0.5% output per year, so lifetime generation and CO2 savings are calculated year-by-year rather than simply multiplying the first year's output by the system life.
Is this a certified carbon credit calculation?
No, this is an estimation tool for personal awareness, not a certified methodology for carbon credits or offset trading.
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