New generations of 3Com® switches reduce power use and carbon emissions while generating savings that directly offset electricity operating costs. As the charts on the next page indicate, a move to newer technology could generate significant savings for an organization with a typical network—100 Ethernet switches (approximately 2,000 networked nodes) that are never turned off at night or put into sleep mode. Such a change would not only produce a staggering extra 89.2W savings per switch, but also enhance functionality and increase throughput performance. By replacing the older generation of 3Com Gigabit switches, such as 3Com Switch 4924s, with the newer 3Com Switch 4200Gs, an organization could realize savings that correspond to:

• 77,890 kWh—the equivalent of lighting 62 homes for a year
  [Represents the number of homes that would be lit for a year by the energy savings that could be realized from a move to newer switches; based on EPA data indicating 1,250 kWh per year for lighting an average home.
  
• 78% or $5,530 per year on electricity costs
  [Based upon $0.071c per kWh.]
  
• Reduction of 56 tons of CO2 entering the atmosphere3
  [Presents the pounds of carbon dioxide from emissions of electricity generation avoided as a result of the energy savings achieved by the use of new switches; based on Energy Information Agency data and the conversion of 1.43 lbs. CO2 per kWh of electricity generation. (2,000 lbs. equals one ton)]
  
• Removal of 10 cars for a year from roadways
  [Cars Off the Road represents the pounds of carbon dioxide from car emissions avoided; based on EPA data using the conversion of 11,560 lbs. CO2 emitted per year by one car.]
  
• Planting 15 acres of trees
  [Acres of Trees Planted represents acres of forest that would have to be planted to sequester the amount of carbon dioxide avoided due to energy savings from power management. Based upon a conversion of 7,333 lbs. CO2 sequestered per acre of trees. (Based on EPA data)]
  

Power Savings Now Delivered by the 3Com Switch Portfolio