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10-Step Process

 

We follow a 10-step process to ensure that Savenia Labs Energy Ratings are credible, trustworthy and based on the latest science. Whether we test products ourselves (Savenia Labs tested), utilize independent 3rd party laboratory data or other sources, we strive to continuously improve this process as new data or techniques become available. We always disclose non Savenia Labs data sources on our Energy Rating labels and on our smartphone site for full transparency.

 



1. Define Category

We start by defining a product category so we choose products that a buyer would compare side by side during a normal purchase.

 

2. Choose Popular Products

We then research the most popular products in the United States in each category.  We survey major retailers and other available sources so that you know the products are being compared against the most popular in the country.  And we are increasing this database all the time so please continue checking our website.

 

3. Conduct User Research

We survey thousands of product users about how often they use products, how many minutes per day, modes of operation for how many years and likes / dislikes.  We also look at government research data, industry data and more to calculate an average consumer product usage profile. 

We use your zip code to calculate the electricity cost of operating the product and your regional power grid CO2 output to calculate lifetime CO2 emissions as a result of the production of electricity used to power the product.

 

4. Purchase Products

We purchase all Savenia Labs tested products ourselves, using our funds, and do not accept any product donations, thereby removing potential manufacturer or product bias from our operations.

 

5. Lab Test Products

Savenia Labs tested products are energy tested at a state of the art electronics lifecycle-testing laboratory in Maryland. We then put the products in front of users to test product performance and ease of use. For some products we use data from other labs or other sources. We always disclose non Savenia Labs data sources on our Energy Rating labels and on our site smartphone for full transparency.

 

6. Research Products

Each Savenia Labs tested product is then researched to confirm various specifications that include packaging material content and weight, manufacturer take-back policy, spare parts availability and pricing, manufacturing location and many other aspects.

 

7. Analyze Data and Produce Scores

Data is then analyzed for completeness. 


Results are scored in comparison to the best product in each category using a 100-point scale.  The best performing product in the category on a particular data point gets 100, and the top 25% of products are highlighted in green.  For the rest, you can still see the scores for your information. 

 

8. Certify Data

Data is certified to be free of manufacturer bias. We undertake a comprehensive process to identify potential sources of bias and ensure these are disclosed and addressed before releasing data for publication.

 

9. Publish Data

Data is published on our website and also used to print retail product labels.

 

10. Update Database

To continually improve our service, we update with new information as it becomes available.

 

For mid size countertop microwave ovens – the laboratory tests power consumption in various modes of operation (for example high, defrost, clock only) and also measures speed of heating. Ratings based on 11 minutes daily use.


For 10-12 cup coffee makers – the laboratory tests power consumption in various modes of operation (for example full pot brew, clock only) and also measures speed of operation and brewing temperature.  Ratings based on 1 pot per day.


For 6 slice toaster ovens – the laboratory tests power consumption in various modes of operation (for example, bake, warm, clock only) and also measures oven temperature and evenness of heating. Ratings based on 22 minutes daily use.


For dehumidifiers – 3rd party laboratory data is used to determine the amount of electricity each unit requires to remove humidity from the air according to American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) standards. Ratings based on 68 days use per year.


For room air conditioners – 3rd party laboratory data is used to determine the amount of electricity each unit requires to cool the air according to The National Appliance Energy Conservation Act (NAECA) minimum standards for energy consumption. Ratings are adjusted by zip code based air conditioner usage days. Median usage was 38 days per year at full load.


For 4 slice toasters– the laboratory tests power consumption in various toast modes (for example 2 slices, 4 slices, clock only) and also measures toast color. Ratings based on an average 3 slices of daily use.


For room air purifiers – 3rd party laboratory data is used to determine the amount of electricity each unit requires to remove dust from the air. This is assessed using a Clean Air Delivery Rate (CADR) test developed by the Association of Home Appliance Manufacturers (AHAM), and recognized by the American National Standards Institute (ANSI). For more information about CADR please visit: www.cadr.org. Ratings based on 9 months of use per year.


For single serve coffeemakers - the laboratory tests out-of-the-box power consumption in various modes of operation (for example 1 cup brew, standby power) and also measures speed of operation and brewing temperature.  Ratings based on 3 cups per day.


For 7-10 cup electric kettles –the laboratory tests power consumption in various modes of operation (for example kettle boil, standby power) and also measures speed of operation and water temperature. Ratings based on 4 cups per day.


For Light bulbs – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity each light requires. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green while manufacturer provided data labels are off-white. Depending on lighting type, bulbs are tested to standards by the American National Standards Institute (ANSI) or the Illuminating Engineering Society (IES). Ratings are based on 3 hours use per day over 15 years.


For Dishwashers – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity and water that each dishwasher and electric water heater uses per cycle. Water usage is reported based on best available data and confirmed with manufacturers; gallons per cycle, average gallons per cycle, or range of gallons per cycle. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green while manufacturer provided data labels are off-white. Independent lab testing is conducted in accordance with specifications by the Association of Home Appliance Manufacturers (AHAM) and the American National Standards Institute (ANSI). Ratings based on 215 wash cycles per year over 10 years.


For Washing Machines – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity and water that each washing machine and electric water heater uses per cycle. Water usage is reported based on best available data and confirmed with manufacturers; gallons per cycle, average gallons per cycle, or range of gallons per cycle. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green while manufacturer provided data labels are off-white. Testing is conducted in accordance with specifications set by the U.S. Department of Energy. Ratings based on 417 loads per year over 11 years.


For Televisions – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity each television uses. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green while manufacturer provided data labels are off-white. Testing is conducted in accordance with specifications by the International Electrotechnical Commission. Ratings based on 5 hours per day of use over 9 years.


For Residential Refrigerators – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity used. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green, while manufacturer provided data labels are off-white. Testing is conducted in accordance with specifications by the Association of Home Appliance Manufacturers (AHAM) and the US Department of Energy. Ratings based on usage over 12 years.


For Freezers – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity to operate a freezer. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green, while manufacturer provided data labels are off-white. Testing is conducted in accordance with specifications by the Association of Home Appliance Manufacturers (AHAM) and the US Department of Energy. Ratings based on usage over 12 years.


For Dryers – 3rd party verified laboratory data or manufacturer provided data is used to determine the amount of electricity required to remove at least 95% of moisture from wet clothes. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where 3rd party verifiedtested data labels are dark green, while manufacturer provided data labels are off-white. Lab testing is conducted in accordance with specifications by the Canadian Standards Association CSA-C361-92. Ratings based on 416 loads per year over 12 years.


For Electric Ovens – 3rd party verified laboratory data or manufacturer provided data is used to determine the amount of electricity that each unit uses each year to deliver a set amount of 'useful' cooking energy as determined by field survey data of actual home use by the National Institute of Standards and Technology (NIST) from the Association of Home Appliance Manufacturers (AHAM). For oven calculations, clock and self-cleaning cycle power are also considered, and for dual oven models the energy consumed is averaged. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where 3rd party verified lab tested data labels are dark green while manufacturer provided data labels are off-white. Lab testing is conducted in accordance with specifications by the Canadian Standards Association C358-03. Ratings based on 15 years usage.


For Residential Cooktops – 3rd party verified laboratory data or manufacturer provided data is used to determine the amount of electricity that each unit uses each year to deliver a set amount of 'useful' cooking energy as determined by field survey data of actual home use by the National Institute of Standards and Technology (NIST) and the Association of Home Appliance Manufacturers (AHAM). The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where 3rd party verified data labels are dark green while manufacturer provided data labels are off-white. Lab testing is conducted in accordance with specifications by the Canadian Standards Association C358-03. Ratings based on 15 years usage.


For Residential Ranges – 3rd verified laboratory data or manufacturer provided data is used to determine the amount of electricity that each unit uses each year to deliver a set amount of 'useful' cooking energy as determined by field survey data of actual home use by the National Institute of Standards and Technology (NIST) and the Association of Home Appliance Manufacturers (AHAM). For oven calculations, clock and self-cleaning cycle power are also considered, and for dual oven models the energy consumed is averaged. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where 3rd party verified data labels are dark green while manufacturer provided data labels are off-white. Independent lab testing is conducted in accordance with specifications by the Canadian Standards Association C358-03. Ratings based on 15 years usage.


For Residential Water Heaters – 3rd party independent laboratory data or manufacturer provided data is used to determine the amount of electricity each unit uses. The data source is clearly marked on the bottom of each Savenia Labs Energy Rating label and in the label color scheme, where independent lab tested data labels are dark green, while manufacturer provided data labels are off-white. Testing is conducted in accordance with specifications by the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) and the US Department of Energy. Ratings based on average water heater usage over 13 years.


Individual usage will vary.