Selection Criteria Computer Monitors

Methodology

Topten.eu (Best products of Europe) presents the most sustainable computer monitors available in Europe.
The test results of TCO in Sweden serve as the basis for the selection criteria. Thanks to these criteria, the chosen models meet strict requirement on energy efficiency, ergonomics, radiation and environmental impact.

Technical criteria

In order to be displayed on www.topten.eu, computer monitors must:

• The products have been awarded the current TCO label 8.0 Displays.
• The energy values are measured by TCO in the context of label issuance.

This means that screens up to and including 22-inch diagonal must be 10 percent more efficient than Energy Star (which corresponds to an efficiency index of 0.9 or lower).
For larger models over 22 inches, the requirements are 20 percent stricter (i.e. an efficiency index of 0.8 or lower).
The TEC value is determined by the information from the TCO measurement and the energy efficiency computation method of EnergyStar. (EnergyStar specification)

Display sequence

According to the screen diagonal

Terminology

The products are ranked according to the size of the screen.

Make /model

Make and model name of the base model. The asterisk (*) stands for possible characters from A-Z and 0-9.

Variants

Model name of variations of the base model. The "x" stands for possible characters from A-Z and 0-9.

Diagonal

Visible image diagonal in inches.

Resolution

Maximum resolution in number of pixels (horizontal x vertical).

TCO Information

The details on the label, the certificate number and the expiry date of the certificate.

TEC (kWh/year) / energy efficiency index

The TEC value is determined with the measured values of the TCO. The calculation is based on 3066 hours in on-mode and 5694 hours in sleep-mode. This means that during 35% of the year the screen is on on-mode, the rest of the time in sleep mode.
The ratio of the effective consumption to the maximum allowed value according to Energy Star is the efficiency index.

Infoplus

Standards and Labels

• Energy Star Program Requirements for Computer Monitors (Version 5.1 and 6.0)
• Energy Star : Labelling for Energy Efficient Office Equipment. Information from Europe and the United States.
• Ecodesign regulation on Standby and Off mode power No 1275/2008, and
• Ecodesign regulation No 801/2013 on networked Standby, amending regulation No 1275/2008.
• European Comission, Ecodesign of Energy-related Products (ErP)
• TCO Stockholm (Sweden).
• Blue Angel, Berlin (Germany): computers (RAL-UZ 78)
• S.A.L.T. Swiss Alpine Laboratories for Testing of Energy Efficiency, Chur

Publications

• Professional Procurement: Office Equipment. Recommendations for executives, persons responsible for procurement and IT. Topten International Group, WWF, European Energy Award, S.A.F.E. October 2009.

Links:

• The European council for an energy efficient economy eceee provides a status overview on all products in the Ecodesign & Energy Labelling process
• Coolproducts informs about the EU ecodesign process on office equipment and other products. It is a coalition of NGOs' campaign for a stronger, fast Ecodesign Directive to save the climate and money.

Producers and retailers are kindly asked to contact info[at]topten.info to inform about more products which meet the topten selection criteria

07/2020 Bush