You may not give much thought to the power supply in your computer, but the quality of its power conversion output is an important consideration when it comes to energy efficiency. The updated ENERGY STAR® 4.0 guideline lists an 80% efficient power supply as a primary requirement, which means you need to give your power supply a second look. HP offers outstanding flexibility on the 7000 and 5000 Series Business Desktops - you can upgrade any configuration with an 80% efficient power supply option.
What are the benefits of an 80% efficient power supply?
The 80% efficient power supply offers a range of potential rewards which benefit you financially while helping the environment by reducing power consumption:
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Increased power supply reliability due to greater efficiency
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Decreased system maintenance due to increased reliability
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Lower TCO due to reduced maintenance and longer equipment life
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Improved worker environment with less noise from the PC
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Potential reduction in cooling bill due to less heat being generated by PCs
How is an 80% efficient power supply different from a traditional power supply?
An 80% efficient power supply is at least 80% efficient at 20%, 50%, and 100% loads whereas current power supplies range from 65–75% efficiency.
80% efficient power supplies are designed with active power factor correction (PFC). Active power factor correction uses an active circuit to help current and voltage correlate with each other. When this happens, apparent power and real power approach each other. Apparent power is the current drawn by a system, whereas real power is the current actually available for use by the system. If they are equal, then the power factor is 1.
A .9 PFC means that 90% of apparent power is actually transferred to available real power. Power supplies that aren't power factor corrected tend to have variations in AC voltage that can affect other equipment on the same circuit.
What makes an 80 PLUS power supply
HP's 80% efficient power supplies carry the 80 PLUS logo. This logo means that they were third party tested through the 80 PLUS program to meet the 80% efficient standard. For more information on the 80 PLUS program, visit the www.80plus.org website.
HP was the first PC manufacturer to sponsor the 80 PLUS program. The 80 PLUS program is a joint endeavor by electric utilities, computer manufacturers and consumers designed to promote the use of 80% energy efficient power supplies to ensure a standard of energy efficiency in power supplies.
In fact, the 80 PLUS program has been instrumental in working with the Environmental Protection Agency (EPA) to make 80% efficient power supplies part of the new ENERGY STAR® 4.0 specification, which went into effect on July 20, 2007.
HP Business Desktop PCs - 80% efficient power supplies, available today
The 80% efficient power supply is available today as an option on select models of the 5000 and 7000 Series Business Desktops PCs and select models of the HP xw4550 and xw4600 Workstations. What is great about this solution is that it can be configured into any combination of modules to deliver improved energy efficiency over our standard power supply.
Take advantage of incentives from public utility companies
Another benefit of buying HP business desktop PCs with 80 PLUS power supplies is that your organization can potentially collect incentives from the public utility companies involved in the 80 PLUS initiative. Please check with your public utility to see if they are a sponsor of the 80 PLUS program or if they have other energy efficient incentive programs.
Don't wait to start taking advantage of the many benefits of desktops with 80% efficient power supplies - get started today in helping your bottom line while helping the environment at the same time.
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