Every time a petrol cab leaves Pune for Mumbai, it burns approximately 12–15 litres of fuel over the 150 km expressway journey. Each litre of petrol combusted releases roughly 2.3 kg of CO₂ into the atmosphere. The arithmetic is unavoidable: one petrol cab trip produces 27–35 kg of CO₂, every single time.
For a single trip, that number feels abstract. Scale it to a business traveller making the journey weekly, or a team of ten doing the same, and it becomes a meaningful and quantifiable environmental footprint. This article provides the exact numbers — and shows precisely how much of that footprint disappears when you switch to an EV cab.
How Much CO₂ Does a Mumbai–Pune Petrol Cab Emit?
A petrol sedan emitting approximately 160 g/km over the 150 km Mumbai–Pune trip produces roughly 24 kg of CO₂. At higher emission rates (200 g/km for larger petrol vehicles), the figure reaches 30 kg. A diesel cab at approximately 140–160 g/km produces 21–24 kg per trip.
These are direct tailpipe figures — the CO₂ emitted from the exhaust pipe during the journey. The full well-to-wheel figure, which includes emissions from extracting, refining, and transporting the fuel before it reaches the vehicle, is approximately 15–25% higher. A petrol cab's real-world climate impact per Mumbai–Pune trip is closer to 30–37 kg CO₂ equivalent on a full lifecycle basis.
How Much CO₂ Does an Electric Cab Emit?
Direct tailpipe emissions from an electric vehicle: zero. Battery electric vehicles have no exhaust and produce no CO₂ at the point of use. The emissions question for EVs shifts to the electricity source used to charge the battery.
Maharashtra's current electricity grid draws approximately 25–30% of its power from renewable sources (solar, wind, hydro), with the balance largely from thermal (coal and gas) and nuclear. At current grid intensity — roughly 0.7–0.8 kg CO₂ per kWh — a Mumbai–Pune trip consuming 8–12 kWh produces approximately 5–8 kg of grid-adjusted CO₂ equivalent. This is still 75–80% lower than a petrol cab on the same journey.
India's renewable energy capacity is expanding rapidly. As the grid gets cleaner, the grid-adjusted emissions for EV charging fall further — meaning an EV cab booked today will have a lower effective carbon footprint next year than it does now, without any change to the vehicle.
CO₂ Comparison Table
The table below shows per-trip and annual CO₂ emissions for different modes of Mumbai–Pune travel, calculated for two common travel frequencies.
| Mode | CO₂ per Trip | Annual (2×/month) | Annual (Weekly) |
|---|---|---|---|
| Petrol cab | ~27 kg | ~648 kg | ~2,808 kg |
| Diesel cab | ~22 kg | ~528 kg | ~2,288 kg |
| EV cab (current grid) | ~6 kg | ~144 kg | ~624 kg |
| EV cab (renewable grid) | ~0 kg | ~0 kg | ~0 kg |
A weekly commuter switching from petrol cab to EV cab avoids emitting approximately 2,184 kg of CO₂ per year. That is a material, measurable reduction — and it comes with no change in journey time, no change in comfort, and (at Orbitmiles fares) no premium in cost.
The 'Equivalent Trees' Framing
A mature tree absorbs approximately 21 kg of CO₂ per year through photosynthesis. One annual commuter (2×/month) switching from petrol to EV saves approximately 504 kg of CO₂. That is equivalent to the annual absorption of about 24 trees.
For a weekly commuter, the saving is 2,184 kg — equivalent to 104 trees planted and growing for a full year. These are not offset credits or carbon accounting tricks. They are real tonnes of CO₂ that simply never enter the atmosphere because the vehicle producing them was replaced with one that doesn't.
Orbitmiles has completed 3,000+ trips and collectively avoided over 20 tonnes of CO₂ compared to equivalent petrol cab journeys on the same corridor. Read more about the case for green electric travel on the Orbitmiles blog.
Corporate ESG Impact: Quantifying Your Team's Travel Emissions
Business travel emissions are classified as Scope 3 (indirect emissions) under the GHG Protocol corporate reporting standard. For companies with sustainability commitments or ESG reporting obligations, intercity cab travel is a quantifiable and actionable area for reduction.
Consider a team of 10 employees each making weekly Mumbai–Pune trips in petrol cabs. Annual CO₂ from that travel: approximately 28,080 kg. Switch the same team to Orbitmiles EV cabs and the figure drops to approximately 6,240 kg — a saving of 21,840 kg per year. That reduction is auditable, attributable, and reportable under Scope 3 categories 6 (Business Travel) and 7 (Employee Commuting).
Contact Orbitmiles at +91 90676 76369 or via WhatsApp to discuss corporate booking arrangements and emission reporting support.
Is an EV Cab Really Greener When You Factor in the Grid?
Yes — substantially. Maharashtra's grid is currently approximately 25–30% renewable, with solar and wind capacity growing each year. Even at the current grid mix, EV cab CO₂ per Mumbai–Pune trip is 75–80% lower than a petrol cab. This comparison does not require India to have a perfect grid — the EV advantage holds strongly at current grid intensity.
There is also a directional certainty that doesn't exist with petrol. Fuel emissions are fixed — burning a litre of petrol always produces the same CO₂. Grid-adjusted EV emissions will only improve as India's renewable capacity grows. The EV cab you book today will have a lower carbon footprint in 2027 and lower again in 2030, with no change to the vehicle or the journey.
Learn more about why electric travel makes sense on the Mumbai–Pune corridor, or explore our full fare breakdown for all vehicles in the fleet.
Frequently Asked Questions
How much CO₂ does a Mumbai-Pune petrol cab emit?
A petrol sedan emitting approximately 160–200 g/km produces 24–30 kg of CO₂ over the 150 km Mumbai–Pune trip. A diesel cab at roughly 140–160 g/km produces 21–24 kg. These are tailpipe figures. Actual well-to-wheel emissions, which include fuel extraction and refining, are 15–25% higher. An Orbitmiles EV cab produces zero direct tailpipe emissions on the same journey.
Is an electric cab really zero emissions?
At the tailpipe, yes — battery electric vehicles produce zero direct emissions. On a grid-adjusted basis, Maharashtra's current electricity mix produces approximately 5–8 kg CO₂ equivalent per Mumbai–Pune EV trip — still 75–80% lower than a petrol cab. As India's grid adds renewable capacity, this figure continues to fall toward zero.
How does India's electricity grid affect EV emissions?
India's grid draws roughly 40–45% of electricity from coal, with 25–30% from renewables. At current grid intensity, charging an EV in Maharashtra produces approximately 0.7–0.8 kg CO₂ per kWh. A Mumbai–Pune trip uses roughly 8–12 kWh, resulting in 6–10 kg of grid-adjusted CO₂ — compared to 27 kg for petrol. India's renewable capacity is growing rapidly, improving this figure each year.
Can companies use Orbitmiles trips for ESG reporting?
Yes. Business travel emissions fall under Scope 3 of the GHG Protocol. Companies switching employee intercity travel from petrol to EV cabs can quantify and report the resulting reductions. For a team of 10 making weekly Mumbai–Pune trips, the annual CO₂ reduction by switching to EV cabs is approximately 21,600 kg — a meaningful, auditable contribution to Scope 3 reduction targets. Contact Orbitmiles for corporate booking arrangements.
How does cab CO₂ compare to train travel on the Mumbai-Pune route?
The Mumbai–Pune rail corridor uses electric locomotives. Per-passenger CO₂ emissions on an electric train are typically 5–10 kg per journey depending on occupancy and grid intensity — broadly comparable to an EV cab. However, the EV cab offers door-to-door convenience, same-day availability, and full luggage flexibility at a similar or lower environmental cost per passenger compared to a solo petrol cab trip.