Microsoft considers delaying its 2030 zero-carbon power commitment amid rising AI infrastructure costs

Microsoft is weighing whether to delay or drop one of its most demanding climate commitments as the cost and power appetite of its AI build-out reshapes the company’s energy strategy, according to Bloomberg.

The target in question is the 100/100/0 goal: matching every hour of electricity consumption with purchases of zero-carbon power by 2030. It is a more exacting standard than annual renewable matching, because it requires clean power to line up with demand in real time rather than being averaged across the year. Microsoft has already met its annual renewable procurement targets, but the hourly pledge is proving much harder to sustain as data centre expansion accelerates.

Bloomberg reported that the company is reconsidering the timetable, or even the viability, of the goal as it commits vast sums to new infrastructure needed for artificial intelligence. Those investments are pushing electricity use higher and squeezing room for other climate-related spending. Microsoft has already reduced the scale of some carbon-dioxide removal efforts, highlighting the tension between rapid AI deployment and longer-term decarbonisation plans.

The broader picture is familiar across Big Tech. Microsoft, Google and Meta have all seen emissions rise as the AI race intensifies, with Bloomberg saying Microsoft’s carbon footprint is up 23 per cent since late 2022. In earlier reporting, Bloomberg said the company’s total emissions had risen by 23 per cent since 2020 as its data centre footprint expanded. Microsoft has also faced criticism, along with other tech groups, over the use of accounting tools such as unbundled renewable energy certificates, which some analysts argue can obscure the true emissions burden of electricity use.

The challenge is not only financial but physical. Data centres need round-the-clock power, and the industry’s default response has increasingly included natural gas backup or dedicated gas generation when cleaner supply cannot be secured quickly enough. That sits uneasily with climate pledges built around solar, wind and hydro procurement, especially where around-the-clock matching is the benchmark.

Microsoft has tried to balance those pressures through large carbon-removal purchases. Bloomberg reported in 2025 that the company had made record commitments to removal projects even as its emissions continued to rise, underscoring how much it has been leaning on offsets and removals to preserve the credibility of its climate strategy. But those measures do not solve the core problem: emissions from electricity demand are growing faster than the supply of truly matched clean power.

The timing also matters. With global emissions from fossil fuels still at record levels, pressure is mounting on large energy users to prove that digital growth can be decoupled from carbon growth. United Nations secretary-general António Guterres has called on major technology companies to fully power data centres with renewable energy by 2030, putting additional scrutiny on firms like Microsoft that have built their climate branding around aggressive decarbonisation targets.

For industrial decarbonisation professionals, Microsoft’s rethink is a warning sign. The company’s experience suggests that hourly clean power procurement, while technically sound, becomes far more difficult once AI infrastructure scales quickly and electricity demand rises faster than clean supply and grid flexibility. The question is no longer whether ambitious targets look good on paper, but whether the market, the grid and project pipelines can deliver them at the pace digital expansion now requires.