Google's Data Centre Water Use to Turn Net Positive by 2030

Google has committed to returning more water to local systems than its data centres use by 2030. The company announced this target alongside US$17m in funding for watershed protection projects.

Data centres function as command hubs for digital services including search engines, mapping tools, online banking and healthcare platforms. The servers and chips within these buildings produce heat that requires management to maintain operational efficiency.

Water cooling methods can reduce energy use by around 10% compared to air cooling systems, according to Google. The company notes that data centre water use represents less than 1% of the volume Americans use for lawn irrigation each year.

Google is concentrating efforts on protecting water resources in locations where it constructs and operates facilities. The strategy aims to prevent digital infrastructure expansion from placing pressure on municipal water supplies.

Water replenishment targets set

Google has outlined a five part framework to manage water resources. The 2030 net positive replenishment goal forms a central element of this approach.

In 2025, the company returned more than seven billion gallons of water to local supplies. This volume could meet the annual needs of around 70,000 average US households, according to Google.

The firm currently supports 165 projects spanning 97 watersheds. When fully operational, this network could replenish more than 19 billion gallons each year by 2030.

This figure exceeds double Google's 2024 consumption and could supply the entire city of Los Angeles for more than 40 days. The projects also address wider watershed health issues including water quality.

Risk assessment shapes cooling choices

The strategy includes more than US$500m allocated to date for public water, wastewater and water reuse infrastructure. This funding supports municipal utilities with supply enhancement and leak detection tasks.

A data-driven framework assesses watershed health before construction begins. Where a local water source faces high risk, Google will select air cooling or recycled water systems instead.

The company pairs this with annual water reporting and pursues alternative solutions. In Douglas County, Georgia, Google is partnering on a project to reuse treated wastewater for cooling purposes.

This approach applies transparent measurement to infrastructure decisions. The framework evaluates local conditions before determining cooling methods.

Funding targets seven states

Google is distributing US$17m across seven US states to support ecological and infrastructure projects. In Georgia, funding will help Ducks Unlimited enhance wetlands within the Flint River Wildlife Management Area.

In Iowa, a partnership with the Great Outdoors Foundation and the state agriculture department will support farmers in converting 5,000 acres to perennial hay and pasture systems. This aims to reduce fertiliser use and improve water quality.

Michigan and Minnesota will see similar environmental interventions. The Huron River Watershed Council will expand its green infrastructure programme.

The Trust for Public Land will restore 84 acres of floodplain forest along the Zumbro River. In Missouri, a 98 acre wetland restoration near the Blue River will involve Bridging the Gap and the Heartland Conservation Alliance.

Nebraska will receive support for an Omaha water line leak detection scheme. The Texas Water Impact Fund will gain backing to secure community water access and infrastructure.

Kate Brandt, Chief Sustainability Officer at Google, writes on LinkedIn: "As we expand the digital infrastructure powering everything from online banking to healthcare systems, how we build is just as important as what we build. Water is a critical component of data centre development and operations.

"Because data centres generate heat from the servers and chips that power the digital world, they often rely on water to cut back on energy use for cooling. We hear the public's concerns around environmental impacts and affordability.

"Through our water stewardship commitments, we will continue to be responsible and transparent in our water use and minimise our local impacts to protect the long-term health of the watersheds in communities we call home."

Google is evaluating more than 700 proposals submitted through its Water Replenishment Projects Request for Information. This pipeline includes engineered efficiency systems, nature-based solutions to support the natural hydrologic cycle and farm-level practices designed to lower agricultural water demand whilst improving soil health.

The company will provide updates in the coming months as implementation begins. Google frames these measures as a long-term commitment to watershed health in communities where it operates.