Solar CO₂ & Tree Savings Calculator

Each kWh of solar-generated electricity replaces grid electricity that would otherwise emit 0.82 kg of CO₂ (India's current grid average, mostly coal-based). A 5 kW system in UP generates ~7,300 kWh/year, saving ~6,000 kg (6 tonnes) of CO₂ annually.

One mature tree absorbs ~22 kg of CO₂ per year. A 5 kW solar system saves ~6,000 kg/year — equivalent to 270 trees annually, or 270 × 25 years = 6,750 tree-years of CO₂ absorption.

~65-70% of India's electricity still comes from coal-based thermal plants, which emit 0.9-1.0 kg CO₂/kWh. Renewables (hydro, solar, wind) emit near zero. As India's grid greens up post-2030, solar's marginal CO₂ benefit will shrink — but over the 25-year lifetime it stays significant.

Yes. Panel manufacturing produces ~0.3-0.5 tonnes of CO₂ per kW. A solar panel pays back this "embodied carbon" within 1.5-2 years of operation. Over 25 years, net CO₂ savings are 40-50× the manufacturing emissions.

Different categories, but complementary. A typical petrol car emits ~2 tonnes CO₂/year. A 5 kW rooftop saves ~6 tonnes/year in electricity. If you charge your EV with solar, you get the car's 2 tonnes PLUS the grid offset — double the impact.

Not for small residential systems. Carbon credit markets (CDM, Article 6) mainly cover utility-scale projects. Some voluntary schemes accept aggregated rooftop solar but payments are small (₹100-500/tonne). The real return remains electricity bill savings.

Delhi-Mumbai return flight: ~230 kg CO₂ per economy seat. Petrol car: 0.19 kg CO₂ per km (India avg). We convert lifetime CO₂ savings into these everyday equivalents to make the number relatable.

Lithium batteries add ~1 tonne CO₂ per 10 kWh of capacity. Inverters add ~0.3-0.5 tonnes. These are one-time embodied emissions, offset by 1-3 months of clean solar generation. Negligible over system lifetime.