After two years of assuring regulators that data centers would not increase electricity bills, utilities are now making an even bolder claim that data centers could actually help lower them.. Companies like DTE Energy, Indiana Michigan Power, and Georgia Power have all put forward variations of the same argument \u2013 that large data centers can generate substantial revenue, which could help stabilize or even reduce rates for existing customers.. However, this assertion has sparked a critical debate among regulators, consumer advocates, and energy economists. The key question they\u2019re asking is: Under what specific conditions can this promise become a reality?. This shift in narrative highlights the growing complexity of the relationship between data centers and the energy grid, as stakeholders seek clarity on the true impact of these facilities on electricity costs.. How Data Center Demand Affects Electricity Bills. In plain terms, adding big, steady loads can spread a utility\u2019s fixed costs over more kilowatt-hours, lowering average rates for everyone else, but only if serving that demand doesn\u2019t require expensive new generation, transmission, or distribution. If large new loads trigger costly infrastructure, bills can rise despite the extra revenue.. Related:Gridlock or Growth? ERCOT Warns Texas AI Power Boom May Not Materialize. In May, I&M announced a 3.6% reduction in customer bills and pointed to revenue growth from large customers, including data centers, as a contributor.. Days later, Georgia Power won approval for a package that lowers overall customer bills while preserving a previously negotiated base-rate freeze through 2028 amid surging data center demand.. The approval came as Georgia Power projects more than 8 GW of load growth through 2030 and pursues plans to add thousands of megawatts of new generation and capacity resources to serve future demand, much of it tied to data centers.. In April, DTE Energy said it intends to pause future electric rate requests for at least two years after its current Michigan rate case if major data center projects come online as expected and regulators approve the plan. DTE told regulators the projects could generate roughly $300 million annually in affordability benefits once fully operational, a projection that underpins the conditional pause proposal.. Jigar Shah, former director of the US Department of Energy\u2019s Loan Programs Office, told Data Center Knowledge the three cases represent very different stages of the debate.\u201cWe\u2019re seeing real early evidence in at least one case, conditional promises in another, and political packaging in the third,\u201d Shah said. he pointed to I&M as the strongest example because the rate reduction is tied to revenue from an operating Google data center. He contrasted that with DTE\u2019s proposal, which depends on future projects coming online and subsequent regulatory approval.. Related:AI Data Center Boom Rewires US Power Supply Chain. Ari Peskoe, director of the Electricity Law Initiative at Harvard Law School\u2019s Environmental and Energy Law Program, told Data Center Knowledge that claims that data centers can lower rates ultimately need to be tested in regulatory proceedings, where utilities\u2019 assumptions and evidence can be scrutinized. \u201cIf a utility claims that data center payments allow it to lower rates for everyone else \u2013 and it provides evidence, and that evidence is scrutinized and found sufficient by regulators \u2013 then I think we might be able to say that data centers lowered rates for everyone else,\u201d Peskoe said.. Electricity pylons and power lines in Fort Valley, Ga. Georgia Power projects more than 8 GW of load growth by 2030 and plans additional generation and capacity to serve data center demand. (Image: Getty). Indiana\u2019s Test Case: Revenue Upside, Risk Controls. Indiana offers one of the clearest examples of how regulators are attempting to balance those opportunities and risks.. In February 2025, Indiana regulators approved a settlement governing how I&M would serve hyperscale customers. The proceeding emerged after the utility projected rapid load growth from large data centers and sought new tariff provisions to manage the risk.. Related:How Grid-Safe Data Centers Can Help Ease the Power Crisis. I&M testified that its Indiana peak load could grow from roughly 2,800 MW to more than 7,000 MW by 2030. The utility noted that a single 150-MW customer would consume as much electricity as roughly 100,000 homes.. Consumer advocates, regulators, and major technology companies intervened in the case. The dispute centered on who would bear the risk if utilities built generation and transmission infrastructure that ultimately proved unnecessary.. Indiana\u2019s consumer advocate argued that existing customers should be shielded from stranded costs (investments that become unrecoverable if projected load doesn’t materialize) associated with hyperscale facilities. Consumer groups argued that new-generation, transmission, and infrastructure investments should follow the principle of cost causation (customers pay the costs they create), with large-load customers paying the costs they generate.. The settlement imposed long-term commitments and financial protections to prevent stranded costs from being passed on to existing customers if projects failed to materialize. Those protections included minimum billing obligations, termination fees, and other mechanisms intended to ensure that large-load customers remained responsible for the costs of serving them.. The approved tariff also requires 20-year service agreements, enhanced collateral requirements, and minimum billing obligations equal to 90% of contracted demand, creating one of the more stringent large-load frameworks adopted by a state utility regulator.. In a LinkedIn post, Amanda Peterson Corio, Google\u2019s global head of energy for data centers and global infrastructure, argued that large-load growth can benefit existing customers when paired with appropriate cost-allocation mechanisms. \u201cAt Google, we believe in paying our own way, and we\u2019ll cover the costs associated with our growth. This not only protects our neighbors from the expenses of a scaling system \u2013 it helps build a more affordable, reliable grid for everyone,\u201d Peterson Corio wrote.. Why Economist and Advocates Are Skeptical. Economists and consumer advocates remain unconvinced that data center growth will automatically translate into lower customer bills.. Ahmad Faruqui, an energy economist who has studied utility rate design for decades, told Data Center Knowledge the economics only work if new demand can be served without triggering large new infrastructure investments. \u201cData Centers will lower rates and customer bills only if they don\u2019t require any upgrades to utility infrastructure \u2013 generation, transmission and distribution,\u201d Faruqui said.. Faruqui said it remains unproven whether that principle holds for multi-gigawatt data center campuses. \u201cWhile that may be true for modest increments in load associated with electrification technologies, such as heat pumps and EVs, it has yet to be shown to be true for gigantic data centers.\u201d. Tyson Slocum, energy program director at Public Citizen, told Data Center Knowledge that utilities often overlook broader system effects when making affordability claims. Data center demand is contributing to higher costs for generation, transmission, substations, transformers, and other infrastructure, he said. Large new loads can tighten wholesale power markets, while the relatively short economic life of some data centers raises the possibility that customers could be left paying for infrastructure built to serve facilities that no longer operate at projected levels. \u201cThe severe depreciation rates of data centers risk premature retirement of the facilities, resulting in stranded asset risk to consumers,\u201d Slocum said.. Building Guardrails Around Growth. Indiana\u2019s settlement illustrates the direction regulators are moving as data center demand grows. The guardrails described above \u2013 long-term service terms, enhanced collateral, and minimum billing obligations \u2013 are intended to prevent stranded costs from being passed on to existing customers. Those provisions mirror recommendations in a January 2025 review of large-load tariffs by Energy Futures Group and Earthjustice, which identified long-term contracts, minimum demand requirements and customer financial protections as common tools for limiting stranded-cost risk.. Faruqui said some affordability arguments assume utilities have substantial excess capacity available for much of the year. Whether that assumption holds as multi-gigawatt data center projects come online remains an open question.<\/p>\n
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