ENERGY STAR certified servers come in the several form factors – blade, multi-node, rack-mounted, and pedestal – and offer the following energy saving features:
- Efficient power supplies that limit power conversion losses and generate less waste heat, which reduces the need for excess air conditioning in the datacenter facility where they are housed;
- Improved power quality which provides building-wide energy efficiency benefits;
- Limits on idle power draw for one and two processor rack mounted or pedestal servers.
- Disclosure of Server Efficiency Rating Tool (SERT) results to accommodate comparison of server efficiency under different usage scenarios.
- Capabilities to measure real time power use, processor utilization, and air temperature, which improves manageability and lowers total cost of ownership;
- Advanced power management features and efficient components to save energy across various operating states, including idle; and
Current Specification Effective Date: June 17, 2019
The ENERGY STAR certified computer server product criteria requires that computer servers use more efficient power supplies, advanced power management features, real-time performance measurement, and lower energy consumption in both the active and idle states.
The criteria are tailored to each product type, including the number of processors and server type. In addition the idle energy consumption is reported and power management requirements exist. Power management is a key component of ENERGY STAR servers and should not be disabled to get the full energy efficiency value of the product.
For a complete description of the specification, please go to Computer Servers Version 3.0 Program Requirements.