Google's electricity consumption grew 37 percent in 2025, its largest year-on-year annual increase to date, driven predominantly by AI demand.The figures were revealed in Google's latest sustainability report. As a result of the increase, Google’s total electricity consumption has now risen more than 250 percent since 2019. Google said it matched 100 percent of its electricity consumption with renewable energy purchases for the ninth consecutive year, and reduced operational emissions by two percent year-on-year. However, the company did acknowledge that its AI infrastructure buildout is "currently accelerating faster than the grid is decarbonizing."A major factor in the company’s emissions profile has been supply chain emissions, which grew 25 percent year-on-year, with data center construction alone accounting for approximately 2.3 million tons of CO2 equivalent in 2025. The company attributed the rise to semiconductor suppliers operating on grids with limited access to clean energy in Taiwan, Japan, Vietnam, and India.In 2025, the company signed power supply agreements for more than 12GW of net-new clean energy, the largest annual total in its history and exceeding its combined procurement from the previous two years. Prominent deals included partnering with NextEra Energy to restart Iowa's 600MW Duane Arnold nuclear plant, a 3GW hydropower framework agreement across the PJM and MISO grid regions with Brookfield, and the largest fusion offtake agreement to date with Commonwealth Fusion Systems.In the report, Google also said that it had integrated 1GW of demand-response capacity into long-term utility contracts across the US, allowing it to shift or curtail machine-learning workloads during periods of grid stress.On efficiency, the company reported a data center fleet-wide average power usage effectiveness (PUE) of 1.09 in 2025. It also said the energy footprint of a median Gemini text prompt fell 33-fold over 12 months, though total consumption continued to rise significantly.Water consumption grew 34 percent to 10.9 billion gallons, marking a significant increase for the company. To mitigate this, Google said it replenished approximately 7.7 billion gallons of water in 2025 through 165 stewardship projects across 97 watersheds, equivalent to about 78 percent of its freshwater consumption. It is ultimately targeting to achieve 120 percent replenishment and water positivity across its operations by 2030.