Data Centers

MultiGreen: Cost-Minimizing Multi-Source Datacenter Power Supply with Online Control

Date Added: Mar 2013
Format: PDF

Faced by soaring power cost, large footprint of carbon emission and unpredictable power outage, more and more modern Cloud Service Providers (CSPs) begin to mitigate these challenges by equipping their Datacenter Power Supply System (DPSS) with multiple sources: smart grid with time-varying electricity prices, Uninterrupted Power Supply (UPS) of finite capacity, and intermittent green or renewable energy. It remains a significant challenge how to operate among multiple power supply sources in a complementary manner, to deliver reliable energy to datacenter users over time, while minimizing a CSP's operational cost over the long run.