Power System Impacts of Data Centers as Dynamic Loads

Abstract

Rapid growth in the utilization of digital services globally has increased both the scale and power demand of data centers, with larger ones becoming comparable to major industrial consumers. Simultaneously, the electric grid is in transition toward large-scale renewable energy integration and increased reliance on power electronics, resulting in reduced inertia and greater sensitivity to fluctuations.

From a power systems perspective, data center operation is analyzed in terms of internal load composition, including variable computational workloads, cooling systems, and power-electronic infrastructure. These factors produce time-varying, nonlinear demand profiles that challenge conventional static load models. In this thesis, the interaction between data centers and the grid is examined with respect to stability, flexibility, and integration.

The results of this work show that data centers can act as both a challenge and an opportunity for grid operation. Through demand response, on-site renewable generation, energy storage solutions, and waste heat utilization, they can support system efficiency and flexibility. However, strict reliability requirements, infrastructure limitations, and regulatory constraints restrict participation. Effective integration therefore requires coordinated planning and control strategies, positioning data centers as active components supporting the grid in future power systems.