A fierce debate is emerging over who should bear the electricity costs for Microsoft’s rapidly expanding data centers across the United States. The day after President Trump said he does not want Americans to shoulder the power bills for data centers, Microsoft president Brad Smith wrote in a blog post that the company would cover the costs itself so that its facilities do not raise household electricity prices. Behind this pledge is an unprecedented wave of data center construction in the US and growing anxiety about how it will affect power demand and consumer energy bills.
According to Business Insider’s reporting, developers filed permits for 1,240 data centers nationwide, roughly four times the level in 2010. Microsoft accounts for 44 of those facilities, the fifth-largest total in the analysis. Half of them are classified as “ultra-large” data centers, each estimated to consume 40 megawatts or more. Microsoft’s facilities are particularly electricity-intensive, with its site in Maricopa County, Arizona, identified as its most power-hungry location.
Geographically, Microsoft’s data centers are heavily concentrated in Virginia, which hosts 24 facilities, followed by Texas with eight, and Illinois and Iowa with four each. Estimates suggest that if all 44 permitted facilities come online, their annual electricity demand could reach 16 to 25 terawatt-hours, with the midpoint roughly equal to what about 1.8 million US homes use in a year. Amazon, with 177 data centers, is projected to have the highest electricity demand at 30 to 48 terawatt-hours annually, while Microsoft ranks second despite having only about a quarter as many sites.
This massive demand often forces investments in new infrastructure, such as grid upgrades, and criticism is mounting over a model in which utilities “socialize” those costs across all ratepayers, including ordinary households. A 2025 Harvard Law School study of utility rate proceedings pointed out that power companies can effectively fund discounts for large customers by spreading their costs through higher electricity prices charged to the general public. Under this structure, residents in many communities fear that welcoming data centers will inevitably lead to higher local power bills.
To ensure Microsoft’s data centers do not push up residential rates, Smith said the company intends to ask utilities and regulators to set its tariffs high enough to fully cover its data center electricity costs. He expressed support for new rate structures that require “very large customers” to pay for the costs incurred to serve them and pledged that when grid upgrades are needed specifically to support Microsoft’s facilities, the company will pay for those improvements. Smith argued that the long-term success of AI infrastructure depends on tech companies paying their own way for the electricity they consume, aligning his stance with President Trump’s broader affordability agenda, which includes efforts to lower mortgage rates and cap credit-card interest rates.
Q1: What has Microsoft promised?
A1: It has pledged to shoulder its data centers’ electricity costs and necessary grid-infrastructure expenses itself so that those facilities do not cause household power bills to rise.
Q2: Why are data centers sparking debate about electricity prices?
A2: Data centers consume huge amounts of power and often require costly new grid investments. In some cases, utilities pass those costs on through higher rates for all customers, fueling criticism that ordinary households are subsidizing the benefits enjoyed by large tech companies.
Q3: How do Microsoft’s and Amazon’s power demands compare?
A3: Amazon, with 177 data centers, is estimated to require 30 to 48 terawatt-hours of electricity per year, the largest demand in Business Insider’s analysis. Microsoft, with only 44 facilities—about a quarter as many—still ranks second, with an expected 16 to 25 terawatt-hours annually.
Microsoft promised consumers won’t foot the bill for its data centers. Our interactive map shows where its facilities are located.
https://www.businessinsider.com/microsoft-data-centers-map-electricity-costs-trump-2026-1
