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The Enervee Score rates every model.
The Choice Engine ranks every choice.

Two halves of one system: a 0–100 efficiency rating for every product on the market.

With its proven ability to guide shoppers towards highly efficient purchases, the Enervee Score transforms energy and carbon savings into a practical and easy-to-understand 0-to-100 score.

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Relative by design. Ranked by default.

The Enervee Score® rates a product against every other model in its category, recalculated daily across more than 40 categories. The Choice Engine® then orders the results by Score, price and available incentives — so the efficient option is the one in front of the shopper, not the one they have to go looking for.
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Rated 0–100
Every model in a category scored against every other, normalised so a 90 means the same on a refrigerator as on a television.
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Ranked in context

The Choice Engine® weighs efficiency, price and available incentives together, so the best real option surfaces without the shopper sorting for it.

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Choices shift

People choose more efficient products when the Score is present — measured in peer-reviewed trials, with the largest effect among low-income shoppers.

Calculating the Enervee Score.

The higher the Enervee Score, the more efficient that product is, relative to all other relevant products in its category. Normalized across categories, the Enervee Score enables consumers to instantly see and understand the model-specific energy performances for any possible purchase. The Enervee Score is also reviewed and refreshed daily - for every product category.

The Enervee Score provides market transparency when it comes to product energy usage and carbon emissions. Using the full range of the 0-100 scale, the Enervee Score maps every product with their specific score. All but the best 10% of products score between 0 and 90 on the Enervee Score scale, with specific bands for easy recognition: Low (0-50), Medium (50-75) and High (75-90). For the top 10% of products in each category, we reserve the Enervee Score range of 90-100. Top-performing products score 90-100 (Ideal), making it easier still to pick the ideal products and appliances for your home.

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Enervee Score methodology for each product category.

Enervee follows the appropriate and accepted standards on performance and energy efficiency ratings in each territory where used. For categories that are not regulated by standards (e.g. video game consoles), Enervee collaborates with stakeholders to develop and agree on its own energy efficiency rating methodologies.

FAQ

What program teams ask about the Enervee Score.

What is the Enervee Score and how is it calculated?

A 0–100 rating of a product's energy efficiency relative to every other product in its category. It is normalised across categories, so a 90 means the same thing on a refrigerator as on a television, and it is recalculated daily for thousands of models across more than 40 categories.

What is the difference between the Choice Engine and the Enervee Score?

The Enervee Score rates one product's energy efficiency 0–100. The Choice Engine is the system that puts it to work: it ranks every model in a category by Score, price and available incentives, so the most relevant efficient option surfaces first instead of the customer having to sort for it. The Score is the rating; the Choice Engine is what acts on it.

Why not just use ENERGY STAR?

ENERGY STAR is a threshold: a product either meets it or it does not, and within the qualifying set there is no way to tell a modest performer from an excellent one. The Enervee Score® is continuous and relative, so it separates every model in a category. It is also independent of federal standards, which matters when those standards are under review.

Why we go beyond ENERGY STAR

How often is it updated, and across how many categories?

Daily, across more than 40 product categories and thousands of models. Daily matters because the distribution moves — a model that was above average two years ago may not be now, and a score that is not refreshed quietly stops being true.

Is the Enervee Score independent of federal efficiency standards?

Yes. It rates products against the current market distribution in their category rather than against a regulatory threshold, so it does not move when a federal standard is revised or withdrawn.

What evidence is there that showing a Score changes what people buy?

Peer-reviewed evidence. Across three randomised controlled trials of 200 respondents each, showing the Enervee Score raised the average Score of the product chosen from 85.5 to 89.5 — a significant shift, and the largest effect was among low-income shoppers. Published open access in Energy Efficiency.

Read the paper

Can we use the Enervee Score in our own program materials?

Yes. Licensing the platform includes the right to use the Enervee Score in your own communications.

More questions program teams ask

More about the Enervee Score.