According to an SCTE/ISBE case study that will be presented at an Energy 2020 meeting this month, cable operators can address power density and cost issues associated with delivery of new services by shifting from 48 VDC to 380 VDC powering. The meeting and plenary will be conducted on April 18-19, at Comcast's (NASDAQ:CMCSA) Chesterbrook, PA, facility.
The case study will discuss the current situation facing service providers: the need to address anticipated 10X or more increases in power requirements for server racks in coming years; the inability of traditional 48 V systems to meet that demand because of cable congestion that restricts power delivery into server areas; and the cost barriers to relocating data centers to new facilities that could be served by 48 V power.
At the meeting, Energy 2020 members will learn how implementation of a 380V system enabled a service provider to extend the useful life of its facilities and to raise facility average power density from <50 W per square foot to >100 W per square foot. In this case, the cost of the 380V approach was 27% less than the 48V alternative.
"While the continuing evolution of data center equipment has greatly improved capacity and performance, there has been an accompanying significant increase in power requirements," said Robert Ambriz, business development director for Eltek, which prepared the case study. "The reality that service providers are facing is that a new powering architecture is required to extend the life of existing facilities and infrastructure, while enabling continued growth."