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BNEF: proposed data-center gas plants carry conditional emissions risk

BloombergNEF tracks 181 GW of announced gas generation alongside data centers. Its 345-million-ton U.S. emissions scenario assumes every proposed plant is built and operated, not that those emissions already exist.

By Greener Numbers Editorial Team · Published November 11, 2026 · Updated 11/11/2026

BloombergNEF said in a November 11, 2026 public release that it expects data-center electricity demand to almost quadruple to 2,354 terawatt-hours by 2035, equivalent to 7% of global electricity consumption. The release summarizes Powering the Data Center Boom: How Grid Policy Can Deliver Clean Power Faster, a report commissioned by Bloomberg Philanthropies. These are research projections, not measured 2035 demand.

BNEF has tracked 181 gigawatts of announced gas-fired generation proposed alongside data centers, with more than 90% in the United States. The release says projects vary widely in maturity and timing. The pipeline therefore indicates potential scale rather than what will necessarily be built, and announced capacity should not be counted as operating generation.

Under BNEF's assumptions, building and operating every announced on-site gas plant proposed for U.S. data centers would produce about 345 million metric tons of carbon dioxide equivalent annually. BNEF puts that at 152 million tons more than supplying the associated data-center capacity with average U.S. grid electricity, equivalent to 10% of U.S. power-sector emissions in 2025. These are conditional scenario comparisons, not emissions already recorded or a prediction that every project proceeds.

The release links the shift toward on-site gas to grid constraints in the United States and Europe and the financial incentive to energize computing capacity quickly. Some projects are intended to operate while awaiting a grid connection, but BNEF says their economics could encourage continued generation after connection. That creates a possible longer-term fossil-fuel lock-in risk rather than proving a fixed lifetime for every plant.

For developed markets, BNEF presents faster grid connections alongside continued power-system decarbonization as a way to limit the emissions impact. Its review covers policies across 17 markets, including flexible connections, financial commitments and clean-power procurement. The release also says empirical evidence remains limited on which emerging policies will be most effective. The findings are policy analysis, not an enacted rule or a guaranteed connection timetable.

The comparison is not universal. BNEF says grid-connected data centers can have worse emissions than on-site gas where grids remain heavily coal-dependent. Its examples describe different conditions in Brazil, India, Indonesia and Malaysia, including transmission constraints and rules governing renewable procurement. The practical question is which additional generation and grid access a project actually secures, not whether grid connection alone makes every data center low-carbon.