To standardize the approach for calculating the range of electric vehicles (EVs), the Ministry of Road Transport and Highways (MoRTH) has implemented updates to the MIDC (Modified Indian Driving Cycle) range test standards.
This adjustment in the range testing process has led manufacturers, including Tata Motors, to revise the range of their electric vehicles.
As a result, other EV manufacturers are expected to follow suit, making similar revisions to their range figures soon.
Important announcement on driving range. pic.twitter.com/eOzvoKt0cl
— TATA.ev (@Tataev) September 3, 2024
Under the new MIDC regulations, the range of Tata EVs has undergone significant revision. Previously, the MIDC range focused solely on Urban (City Driving – P1) conditions, but the updated standards now include both Urban and Extra Urban (Highway Driving – P2) components.
Due to these new rules, the official MIDC range of Tata EVs has been revised, leading to a decrease in the certified range across various models.
Model
Previous Range
Revised Range
Curvv EV 55 kWh
585 km
502 km
Curvv EV 45 kWh
502 km
430 km
Nexon EV 40.5 kWh
465 km
390 km
Nexon EV 30 kWh
325 km
275 km
Punch EV 35 kWh
421 km
365 km
Punch EV 25 kWh
315 km
265 km
Tiago EV 24 kWh
315 km
275 km
Tiago EV 19.2 kWh
250 km
221 km
This reduction in range reflects the new testing standards and impacts the overall range figures for Tata’s electric lineup, with reductions ranging from 50 km to 83 km.
To give customers a better understanding of real-world driving range, Tata Motors has introduced the C75 range metric.
This figure is based on data collected from over 1.65 lakh Tata electric cars and SUVs, covering a distance of 4 billion kilometers. The C75 range represents the range that 75% of Tata EV users based on various driving conditions.
The C75 range is calculated with a more realistic approach, accommodating factors such as higher speeds, air conditioning usage, heavier loads, and greater temperature variations. For instance, while the MIDC tests consider a maximum speed of 90 kmph and a load of 150 kg, the C75 range accounts for a top speed of 120 kmph and a load of 250 kg. This makes the C75 range more reflective of real-world driving conditions, giving users a better estimate of their vehicle’s performance.
Despite the revisions to the MIDC range, the C75 range continues to be lower than both the previous and updated MIDC range numbers. This indicates that the real-world range of Tata EVs remains consistent with what drivers experienced before the new standards were implemented. Tata Motors’ commitment to sharing C75 data ensures that customers have a more accurate representation of their EV’s range in everyday driving scenarios.
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