Energy Efficiency

Protecting the Environment

More and more customers are asking us about efficiency and energy consumption. In summary we are focused on developing products that are smaller, produce less waste, consume less physical material and avoid hazardous substances. 

Our goal is to become the leader in our industry on environmental issues.

  • Board level Environmental Committee focused on minimizing our environmental impact.
  • Environmental concerns and legislation drive demand for energy efficient products.
  • Full membership of the Electronic Industry Citizenship Coalition (EICC).
  • ISO14001 certified environmental management system.

Energy efficiency for external power supplies (EPS)

Controlling the power consumed by external power supplies, whether when they are supplying power or when disconnected from the load, is important for continuity of the energy supply and reduction of environmental impacts. Legislation and targets are set for external power supplies because of proliferation, lack of on/off control and because they are commonly left connected to the mains supply when not in use.

Many areas around the world have introduced legislation for no load power consumption and active mode efficiency for external power supplies. In the USA there are a number of bodies legislating on energy efficiency; the California Energy Commission (CEC), US Congress with its Energy Independence and Security Act (EISA) and recently the United States Department of Energy (DoE). There is also Energy Star which sets limits for electrical and electronic equipment. In Europe there is the Energy related Products (ErP) Directive formerly known as the Energy Using Products (EuP) directive, which is mandatory. There is also the EU Code of Conduct for external power supplies which is voluntary. In Canada there is Natural Resources Canada (NRCan) and in Australia the Minimum Energy Performance Standard (MEPS).


In recent times both the US DoE and the EU CoC have set new, more demanding, standards for both energy efficiency and no load power consumption. The EU CoC has also introduced a 10% load efficiency requirement reflecting applications which spend a large proportion of time using minimal power from the external power supply and has two tiers to drive future development.

The DoE and EU CoC were both introduced in early 2014 with both the DoE and EU CoC tier 2 requirements coming into force in 2016. These new requirements mean both increased active mode efficiency and reduced no load power consumption. The tables (listed in Efficiency Legislation for EPS below) outline the differences between the level IV and level V limits previously invoked, the new DoE level VI limits and the EU CoC tier 1 & tier 2 limits with implementation dates. Notably the DoE limits now incorporate external power supplies with an output power greater than 250W. Devices that require Federal approval as a medical device are exempt from the new DoE legislation.

Download Efficiency Legislation for EPS

XP Power Products - Energy efficiency levels

Energy efficiency level IV and compliance with CEC2008, EISA2007 & ErP Step 1
Energy efficiency level V and compliance with CEC2008, EISA2007 and ErP Step 2
Energy efficiency level VI
Energy efficiency level VI and CoC Tier 2


Power (W) Format Series Name 3V3 5V 9V 12V 15V 18V 19V 24V 30V 36V 48V
5 Plugtop VEL05  
5 Plugtop VER05  
6 Plugtop ACM06  
10 Plugtop VEB10L6  
12 Plugtop ACM12  
12 Plugtop VEL12  
12 Plugtop VER12  
15 Plugtop VEB15L6  
18 Plugtop VEL18    
18 Plugtop VER18    
18 Plugtop ACM18  
24 Plugtop ACM24    
24 Plugtop VEL24      
24 Plugtop VER24      
36 Plugtop ACM36    
36 Plugtop VEL36      
36 Plugtop VER36      
15 Desktop AEL15L6
15 Desktop AEK15
18 Desktop VET18    
20 Desktop AEL20L6  
20 Desktop VEH20L6  
24 Desktop VET24      
30 Desktop AFM30      
30 Desktop VET30      
36 Desktop AEJ36  
36 Desktop AKM36      
36 Desktop VET36      
40 Desktop AEL40L6  
40 Desktop AEK40  
40 Desktop VEC40      
40 Desktop VEH40L6  
45 Desktop AFM45      
50 Desktop AEJ50      
60 Desktop AEL60L6      
60 Desktop AEK60      
60 Desktop AFM60      
65 Desktop VEC65      
65 Desktop ALM65      
65 Desktop AKM65      
70 Desktop AEJ70      
80 Desktop AEL80L6      
85 Desktop AHM85      
85 Desktop ALM85      
90 Desktop AJM90      
90 Desktop VES90      
100 Desktop AEJ100      
100 Desktop AHM100      
120 Desktop ALM120      
120 Desktop VEH120      
120 Desktop VES120      
150 Desktop AHM150      
150 Desktop VEH150      
150 Desktop VES150      
180 Desktop AHM180      
220 Desktop AHE220      
250 Desktop AHM250      

Green Power – A definition

With the withdrawal of the external power supplies category by Energy Star, we are no longer permitted to use the Energy Star logo. We have accelerated the rate of ‘green’ product introductions in the last two years and have created our own 'green power' logo to highlight these particular products to our customers. This logo will be used for the appropriate products on datasheets and other marketing material.

Below is what we mean by ‘green power’. This definition includes the no load power limits and average efficiency limits of our 'green power' products for both our external power supply range and component power supplies.


Green Power - More info