Regulations and Regulators

Electric vehicles are the future of the automotive world and those who are aware of it have caused EV sales to increase significantly in the last few years. It is estimated that new electric vehicle sales will reach approximately 35% of total new automobile sales in 2025.

When it comes to EVs in this new and electric era, range is one of the most frequently asked questions. The most curious thing before buying is the range of the vehicle. And there are different test cycle standards used to calculate the range of an EV.

Various internationally recognized EV tests are carried out by reputable organizations and agencies operating worldwide. Electric vehicle testing helps you evaluate and verify the performance, safety and electromagnetic compatibility of electric vehicles.

There are four main range tests referenced all over the world. These are EPA (Environmental Protection Agency) ratings, WLTP (Worldwide Light Vehicle Test Procedure), NEDC (New European Driving Cycle) and CLTC (Chinese Light Duty Vehicle Test Cycle).

Some range tests give higher range results than others. In this sense, it can be said that they are more generous. New European Driving Cycle NEDC and CLTC are relatively generous tests. NEDC Test Cycle has traditionally been the most optimistic measure, achievable in specific circumstances. Often the manufacturers would use numbers derived from the “NEDC” cycle. Environmental Protection Agency EPA’s test cycles better simulate real-world use of EV. In this respect, it can be said to be more realistic and gives the most accurate range information. World Light Test Procedure WLTP, defines a globally harmonized standard for determining the levels of pollutants and CO2 emissions, fuel or energy consumption, and electric range from light-duty vehicles. It is used by European automakers and is 80-90% accurate when compared to real road tests.

You should read more to better understand the difference between EPA, WLTP, NEDC and CLTC range tests.