Enervee® Score for Cars

An intuitive scoring system that’s designed to help car shoppers make a better decision when it comes to choosing their next car.

Consumers are interested in electric vehicles and want to understand fuel costs.

84% of consumers would find it extremely or very useful to have access to an online tool to compare car types in terms of running costs.

68% of consumers extremely or very likely to buy an electric car if they could see it was cheaper to run than a conventional fuel car.

69% of consumers consider it extremely or very important to buy a car that is inexpensive to run.

What's Enervee Score® for Cars?

The Enervee Score® for Cars is a new, intuitive scoring system that’s designed to help car shoppers make a better decision when it comes to choosing their next car.

When buying a new car, lots of features are pretty easy to compare, like color, make, model, or number of seats. But there are some that are really hard to compare - such as the car’s real running costs. When it comes to comparing fuel costs and emission levels, it’s tough to make the best decision.

The Enervee Score for Cars solves that problem, by making detailed real-time comparisons on fuel costs and emission levels. With every available make and model having its own Enervee Score, the solution is simple: the closer the Enervee Score is to 100, the lower the fuel costs,  the fewer the emissions, and the better the choice when compared to all other cars of the same performance.

How does the Enervee Score for Cars differ from MPG?

The Enervee Score for Cars is different from the traditional MPG measure in a very important way. MPG shows how many miles a particular car can travel on one gallon of fuel (assuming a series of driving conditions). As a result, the MPG figure will always be higher for smaller cars with smaller engines.

But what if you don’t want to buy a small car with a small engine?

The challenge with an MPG figure is there’s no clear way of knowing for any particular car how its MPG figure compares to all other cars with similar performance. For example, if a new Volvo SUV has an MPG figure of 32, is this good or bad in the context of that consumer’s buying decision and in relation to all other possible SUV choices?

Although presented as a tool for shoppers to make better choices, the MPG figure is not a buyer-friendly measure of fuel efficiency. MPG is an absolute measure of consumption, rather than a relevant relative measure of efficiency.

The MPG figure does not enable the car buyer make the most efficiency-informed choice; it only allows the buyer to know the consumption associated with that choice.

The Enervee Score for Cars, by comparison, is an efficiency score for any specific car choice, based on a comparison with all other car choices of matching performance. The Enervee Score for Cars does this by creating a relevant efficiency index for all cars in the market. This means a SUV shopper can instantly see how a particular Volvo compares in terms of efficiency (fuel and emissions) to all other relevant options available in the market today. This in turn allows a car buyer to maximize their efficiency choice within any given choice set.

The Enervee Score for Cars shows how every car compares on fuel costs and emissions in relation to all other same performance level choices.

How do different fuel types impact the Enervee Score for Cars?

Fuel type (gasoline, diesel or electricity) has a big impact on the Enervee Score for Cars. This is because each fuel type has its own cost of use (such as pump prices or cost per kWh), and produces its own emissions (both type and quantity).

Although no two cars are the same, when it comes to working out how much a car will cost to run  - in terms of fuel and emissions costs - one thing is clear: electric vehicles (EVs) consistently secure higher Enervee Scores, meaning their fuel cost and carbon emissions are significantly better than all comparable alternatives.

The Enervee Score for Cars varies based on fuel type used by the car.

How is the Enervee Score for Cars calculated?

The Enervee Score for Cars is calculated by focusing on two questions that impact the running costs of owning a car:

1. FUEL COST - How much does it cost in fuel to cover a set distance?
2. EMISSIONS - What level of emissions does the car generate to cover that set distance?

With these data, the Enervee Score for Cars creates an index for each of these factors. The fuel cost index is created by comparing the car’s fuel cost to the fuel cost for a reference car of matching horsepower. Engine horsepower is used as a reference point, as its relationship to fuel consumption is proven, and is found to have the strongest correlation of principal car attributes with fuel consumption (r2>.7; all cars available in US market, April 2018). Engine horsepower is also used for the emissions reference point since emissions are a product of fuel used, and fuel used is a product of engine power.

Both indices are then combined to create a single composite index - the Enervee Efficiency Index - for the car in question. The final step involves calculating the deviation of the Energy Efficiency Index score for the car from the relevant reference score. This creates the Enervee Score for the car in question.

As a relative measure of fuel and emissions efficiency, the Enervee Score for Cars is dynamic and updated daily. This ensures the Enervee Score for Cars accurately reflects the market at all times, even when new models are introduced, and ensures car buyers are always able to maximize their efficiency choice, regardless of car type.

To provide even greater market transparency, the Enervee Score now spans the entire 0-100 scale, in order to really show the best of the best - and the worst of the worst. The top tenth percentile is now reserved only for products using the most efficient new technologies, so you can be sure a product purchased in the 90 range is the most efficient available in the market.

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