Data centre electricity soared in 2025, as capacity and grid constraints threaten industry innovation, the International Energy Agency (IEA) has found. It's one of the starkest examples yet of the AI boom's impact on everyday Americans. The case is extreme, but the. Power Quality (PQ) refers to the characteristics of the electrical power supply, including voltage, frequency, and waveform stability. The report, Key Questions on Energy and AI, explored AI 's growing energy footprint and options for meeting data centre power demand and found that. Data centers are the invisible backbone of our digital world, powering everything from social media feeds to critical business applications. data centers alone consumed 176 terawatt-hours (TWh) of.