Data centers constantly clamor for more water and power to fuel the artificial intelligence boom, yet discard staggering amounts of energy already received. In fact, every day global data centers discard 42 million kilowatts of energy, enough to simultaneously power America’s 13 largest cities all day long, from New York City to Seattle. Poof! All of that energy, gone, every single day. The technology to recapture that energy is simple, commercially proven over decades and pays for itself quickly. The problem is neither technology nor ingenuity: It is a failure of policy and incentive design.
The International Energy Agency projects U.S. data centers will consume approximately 260 terawatt-hours this year or roughly 6% of all American electricity, up from 4% just two years ago with Goldman Sachs estimating 8% by 2030. This demand strains already-stretched utilities and raises costs for every American. Meanwhile, because regulatory policy does not require reuse, data centers continue to discard heat as waste rather than treat it as a commodity resource.
The contrast with international counterparts is stark. In Finland, Microsoft’s Azure facilities deliver up to 350 MW of thermal output into Helsinki’s municipal heating network, enough to cover 40% of heating demand for 250,000 customers. Norway requires operators of new facilities above 2 MW to complete a government-approved cost-benefit analysis on waste heat utilization before construction can begin. The EU’s 2023 Energy Efficiency Directive requires facilities larger than 1 MW to utilize waste heat where feasible. Heat reuse happens in Europe because regulations require it.
What that gap costs becomes tangible at the facility level. A large hyperscale data center consumes 3 to 5 million gallons of water daily through evaporative cooling. By recycling its daily thermal output of 300 to 500 megawatts through absorption cooling systems — paradoxically using heat to cool — a facility could reduce its cooling load by 30% to 40% (author’s calculation) while simultaneously reducing demand on the broader electrical grid. Waste heat could also feed Organic Rankine Cycle generators, enabling operators to produce on-site electricity or sell power back to the utility. What is missing is not engineering capability. It is regulatory signal.
Water is currently priced at subsidized rates that make evaporative cooling the economic default. Thermal output carries no accountability whatsoever. The result is an industry that has quietly optimized for the cheapest possible resource extraction while externalizing the full cost onto communities and utilities.
Oregon is the clearest domestic case study. In Morrow County, Commissioner Jim Doherty began collecting tap water samples from residents’ wells in 2022 after hearing too many accounts of unexplained cancers and miscarriages. Of the first 30 homes he visited, he heard of at least 25 miscarriages and multiple residents living with one kidney. A December 2025 Rolling Stone investigation documented an unusual rise in both conditions, linking them to nitrate contamination in the Lower Umatilla Basin aquifer. It’s the only drinking water source for 45,000 residents, and data center operations are drawing from and returning concentrated wastewater to the same system. In The Dalles, Google accounts for 29% of the entire city’s water consumption, yet when a journalist requested records under Oregon’s public records law, the city sued to block disclosure of Google’s water usage data; this is the same city that granted Google $260 million in tax breaks.
These are not Oregon-exclusive failures. No state currently requires net-zero resource extraction, mandates productive use of thermal output or even requires basic water usage disclosure.
The policy framework needed is deliberately technology-neutral. It should not prescribe how operators achieve the outcome — only that they achieve it. Facilities might pipe thermal output as hot water to homes, schools or community facilities. Agricultural regions might heat greenhouses or aquaculture operations year-round. New permits would face immediate requirements; existing facilities would operate under phased implementation, similar to U.S. automobile emissions standards.
This matters because data center operators are extraordinarily good at cost optimization. But when water is priced below its true scarcity cost and thermal output carries zero accountability, current policy virtually guarantees atmospheric venting as the economically rational choice. Change the requirement and the engineering solutions will follow. When facing community pressure in Oregon, Google delivered an aquifer storage and recovery system capturing 100 million gallons of winter runoff annually for dry-season use, demonstrating that water accountability works when required. The engineering capacity is already there. The regulatory signal is not. Every day without a regulatory requirement to capture it, we vent the energy equivalent of what 34 million American homes consume in electricity — 1 in every 4 households (author’s calculation). Every day.
The reuse technology is simple. The policy levers are clear. The cost of inaction falls on communities that cannot opt out.
