PolitiFact: Warren overstates data center impact on electric bills
PolitiFact evaluated Senator Elizabeth Warren's claim that data centers have caused residential electricity bills to increase by 267%. The fact-check found that while data centers contribute to rising electricity costs, Warren's figure misrepresented wholesale price increases as residential bill increases. Average residential bills have risen by a lower but still significant amount in some areas, partly due to data center demand.
Senator Elizabeth Warren (D-Mass.) claimed in an X post and a December 2025 letter that data centers have caused residential electricity bills in nearby areas to rise by as much as 267% over five years. This assertion was part of her broader call for increased taxes on companies building data centers and an investigation into their effect on utility costs. PolitiFact investigated this claim, noting that Warren's figure originated from a September 2025 Bloomberg article, which actually referred to the increase in wholesale electricity prices at certain power grid nodes, not the rates paid directly by residential consumers. The Bloomberg analysis indicated wholesale prices had risen significantly, in some cases by 267%, while average residential retail electricity costs across the U.S. rose by 42% over the same period, with specific states like Maryland and New York seeing increases of 74% and 58% respectively between March 2021 and March 2026.
Economists, including Kenneth Gillingham of Yale, clarified that wholesale prices constitute only a portion (30-50%) of a consumer's total electricity bill, with other components like transmission, distribution, and taxes. These wholesale costs are typically passed on to all ratepayers, including businesses, after state regulatory approval. Reports from the Independent Market Monitor for PJM Interconnection, a grid operator for 13 states and D.C., confirmed that data center load growth is the primary driver for record-high capacity prices, adding billions in costs. Ari Peskoe of Harvard Law School further argued that consumers are likely subsidizing data centers, as their demand necessitates substantial investments in power markets and infrastructure.
While data centers are acknowledged as a major contributor to rising electricity prices in some regions, other factors such as equipment costs, an aging grid, and clean energy requirements also play a role, as per a 2026 Lawrence Berkeley National Laboratory report. PolitiFact ultimately rated Warren's claim as "Mostly False" because, despite data centers undeniably increasing electricity costs and consumer prices seeing significant increases in some areas, her specific 267% figure misrepresented the direct impact on residential utility bills.