San Jose is becoming an increasingly important test of how far a city can push artificial intelligence infrastructure before the economics of expansion collide with the costs carried by residents. The largest city in Silicon Valley is courting data center development as technology companies race to secure the computing capacity needed for increasingly power-hungry AI systems, while residents and environmental groups are demanding greater scrutiny of what those facilities will require from the local power system, water resources and surrounding communities.

The disagreement goes beyond whether individual projects should receive permits, because it raises a harder infrastructure question about who should finance the new generation capacity, grid upgrades, water systems and environmental safeguards required by concentrated digital loads. City officials see large facilities as potential sources of tax revenue that can strengthen municipal services, while opponents question whether those revenues will adequately compensate communities for infrastructure and quality-of-life pressures. The debate also arrives as California lawmakers consider new rules governing how large data centers disclose their resource consumption and contribute to electricity-system costs.

San Jose Bets on AI Infrastructure Growth

San Jose’s approach reflects efforts to attract data center development while addressing infrastructure and community concerns tied to large electricity users. The city’s economic case centers on the tax revenue officials expect new data centers to generate. San Jose has worked with PG&E to accelerate connections for large electricity customers, and the agreement aims to speed energy delivery to large facilities seeking grid connections.

City officials estimate that each new data center could generate roughly $3 million to $6 million in annual tax revenue, creating a potential funding stream for services including police, fire protection, libraries, roads and parks. That revenue estimate forms part of the city’s economic case for accommodating data center development. The broader policy debate centers on how utilities and policymakers should allocate the costs of generation, transmission and distribution infrastructure tied to large new electricity loads. The debate also concerns how San Jose can accommodate new data center development while accounting for its energy, water, air-quality and community impacts.

Residents Question Who Pays for AI Growth

For residents, one central concern is whether additional electricity demand from data centers could affect household electricity costs. Large computing facilities can operate around the clock, their electricity requirements can therefore become a significant consideration in planning for additional generation and grid capacity. Residents and lawmakers are questioning whether infrastructure needed to accommodate large data center loads could result in additional costs for electricity customers. Ellina Yin, a leader of the grassroots coalition I Love San Jose, has pressed companies to make a clearer case for their use of local resources and demonstrate tangible community benefits. “The companies have to prove to us why they deserve our resources and how they’re going to give back to the community.” Her position reflects the broader dispute over whether the economic benefits of new computing infrastructure will adequately account for the resources and infrastructure required to support it.

California Targets Data Center Rate Exposure

San Jose’s local dispute now connects directly to a statewide effort to redefine how California handles large electricity consumers. State lawmakers have approved measures that would require large data centers to shoulder a more identifiable share of grid-related costs while increasing transparency around electricity and water consumption. One major proposal, Senate Bill 886, would direct the California Public Utilities Commission to establish a tariff covering transmission, distribution and generation costs for new large-load customers with peak demand of at least 75 megawatts. Other legislation would establish additional interconnection requirements, creating a framework that makes the infrastructure economics of large data centers more explicit before projects scale.

Meanwhile, federal lawmakers have also moved toward addressing the same concern, with the US House passing the Ratepayer Protection Act on Sept. 16 by a 417-3 vote and directing state regulators to consider whether large electricity users should cover infrastructure costs associated with their demand. The developments have expanded the debate from individual projects to questions about how the electricity costs associated with large and rapidly growing loads should be allocated.

Water Transparency Becomes Another Flashpoint

Electricity represents only one part of the resource equation, because San Jose’s data center standards also address water use, including recycled-water infrastructure, closed-loop systems and other measures intended to reduce reliance on potable water. California lawmakers have advanced measures addressing data center electricity and water use, including greater transparency around resource consumption and infrastructure associated with large facilities. The measures also seek greater disclosure of data center resource use, including information concerning electricity and water consumption.

The legislation comes amid calls for greater transparency around how much water individual data centers consume and how their resource requirements should be evaluated. The push for disclosure also reflects broader concerns about the water requirements associated with expanding data center infrastructure. For San Jose, the transparency debate adds another layer to questions about how the city’s economic benefits should be considered alongside the energy and water requirements of large data center projects.

Air Quality Adds a Third Infrastructure Risk

The environmental argument also extends beyond electricity and water into local air quality, particularly because large data centers typically require backup generation capable of supporting critical computing loads during grid disruptions. In April, a coalition led by the Center for Biological Diversity approached the Bay Area Air Quality Management District seeking tighter oversight of diesel generators associated with data centers. The groups argue that rules developed before the current expansion of AI infrastructure may not adequately reflect the scale and operating patterns of today’s projects.

Regulators have been examining whether additional safeguards could be appropriate as the industry expands and facilities increase their electricity requirements. The issue remains relevant because data centers can use on-site backup generators during utility outages and other specified operating conditions. Moreover, the dispute therefore encompasses the physical infrastructure that supports AI computing, including electricity supplies, cooling systems, backup generation and water requirements. The power supply, cooling systems, backup generation, water connections and surrounding infrastructure all become part of the community impact calculation when a large facility enters an urban environment.

Mayor Mahan Rejects a Simple Construction Halt

San Jose Mayor Matt Mahan has argued that the answer does not lie in stopping data center construction altogether, instead emphasizing responsible development and the need to address legitimate public questions. His position recognizes that the city faces a practical choice between accommodating an industry with substantial economic value and establishing conditions that prevent infrastructure costs from becoming an unpriced burden on residents. “People are right to question, ‘Is this pushing up my energy costs? Is it using our clean water supplies? Will it degrade quality of life in my city?’ These are very fair questions.” Mahan’s comments identify electricity costs, water supplies and quality of life as questions that should be considered alongside data center development.

San José is developing uniform standards and best practices for data center projects that address energy consumption and sourcing, water use, air quality, backup generators and other environmental factors. The standards are also intended to establish a clear and consistent process for community notification and engagement. That approach could make future approvals less dependent on the economics of an individual project and more dependent on how effectively a proposed facility fits within the city’s broader infrastructure and community objectives.

San Jose Becomes a Test for AI Infrastructure Economics

San Jose is now considering how data center development should be evaluated alongside the energy, water, air-quality and other environmental effects identified in its proposed uniform standards. The policy debate now places the city’s expected tax benefits alongside questions about electricity infrastructure, water use, environmental controls and potential effects on ratepayers. California’s legislative response would increase transparency around resource use and establish requirements intended to address the costs associated with large electricity loads. The state’s pending measures now await action from Gov. Gavin Newsom, with the governor required to sign or veto the package by the end of September, according to reporting on the legislation. San Jose’s experience provides a local example of the broader questions other communities face as they evaluate large AI-related electricity and infrastructure demands. The current measures could affect the financial and disclosure requirements applied to large data center projects in California.