Central or Distributed Energy Storage for Processors with Energy Harvesting

Gelenbe E., Ceran E. T.

2015 Sustainable Internet and ICT for Sustainability (SustainIT), Madrid, Spain, 14 - 15 April 2015 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/sustainit.2015.7101380
  • City: Madrid
  • Country: Spain
  • Keywords: Energy Harvesting, Distributed Computer System, Energy Packet Network


We consider an interconnected distributed computer system with multiple computation centres (CC) that operate with energy harvesting to improve sustainability. The intermittent energy harvesting is matched with steady demand from the CCs using energy storage (ES), e.g. batteries. Based on energy leakage from batteries, and power losses over transmission lines, we examine whether a centralised or distributed ES system provides the solution that offers the smallest response time to a fixed workload of computer jobs using the Energy Packet Network (EPN) modelling paradigm.