AI power plans move closer to the servers
Subject: Grid & Silicon: AI power moves closer to the servers
Preview: Four developments in utility demand, onsite generation and cloud CPUs—and the milestones that still separate plans from operating infrastructure.
This week’s coverage followed power and computing plans that could reshape where AI infrastructure gets capacity. A Midwest utility raised its investment forecast, two Asian data-center companies began studying integrated energy, Oracle set a 2027 target for an Arm server CPU, and NTT DATA signed a large onsite-power agreement. The common caveat is timing: contracts and targets matter, but none of these announcements turns its full headline number into operating infrastructure today.
Alliant ties 3.4 GW of contracted demand to a larger build plan
Alliant Energy says its Iowa and Wisconsin utilities have 3.4 gigawatts of contracted data-center demand. The company raised its projected 2027–2030 capital spending by 19% to $15.9 billion and expects peak demand to grow about 60% by 2031. Those are company forecasts. The release does not identify the customers, sites or service dates, so the next evidence will come from regulatory cases, construction milestones and load entering service.
Read the full briefing → · Primary source
DayOne and Sembcorp put energy planning at the start of development
DayOne and Sembcorp signed a memorandum to study onsite generation, renewable supply, fuel and storage infrastructure, electrical systems, and operating services for selected Asian data centers. The approach could let energy design advance alongside the buildings. The companies have not named a project, capacity, cost or implementation schedule, making this a framework for evaluation rather than a construction commitment.
Read the full briefing → · Primary source
Oracle targets fall 2027 for an Arm AGI CPU cloud offering
Oracle plans to offer Arm’s AGI CPU through Oracle Cloud Infrastructure in fall 2027. Arm presents the processor as general-purpose server compute for cloud and agentic-AI workloads, extending an existing relationship that includes Arm-based OCI instances. The announcement gives no price, deployment count, power benchmark or customer performance result. Availability and independent workload measurements will determine how the planned CPU changes real systems.
Read the full briefing → · Primary source
NTT DATA plans 900 MW of Bloom onsite generation
NTT DATA and Bloom Energy announced an agreement covering 900 megawatts of planned onsite power across multiple global data-center projects, with initial shipments scheduled for 2027. Fuel cells could place steady generation close to the servers, but the companies did not name the sites, divide the capacity among them or disclose fuel and grid arrangements. Those details—and project permits, delivery and commissioning—will show how much of the agreement becomes operating power.
Read the full briefing → · Primary source
Go deeper
How solid-oxide fuel cells power a data center
The week’s largest power agreement uses solid-oxide fuel cells. This new explainer follows the electrochemical process, the natural-gas and carbon boundary, high-temperature operating limits, and the equipment and permits that onsite generation still needs. It also links to Grid & Silicon’s video on the conventional grid-to-campus power path for comparison.
This week’s announcements move planning closer to the physical bottlenecks: generation beside campuses, energy design inside development plans, and server CPUs aimed at future cloud capacity. The next useful evidence will be named sites, approved projects, delivered equipment and measured operation.
Sources linked below.
Primary source · Primary source · Primary source · Primary source