Quantum Computing's Grid Load Sparks Utility Debate — SkimNews
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- McKinsey's April 2025 report identified quantum computing reaching a "commercial tipping point," with 300+ companies piloting the technology and startup investment hitting $12.6 billion in 2025 — six times 2024 levels — projecting up to $2.7 trillion in economic value by the 2030s
- EPB (Chattanooga's municipal utility) will install a 36-logical-qubit quantum computer later this year, partnering with IonQ, Oak Ridge National Laboratory, and the University of Tennessee on NVIDIA's CUDA-Q platform to optimize battery dispatch across 150 batteries and 112 substations serving 200,000 meters
- Schneider Electric's Aparna Prabhakar warned quantum's load profile — requiring 24/7 cryogenic cooling to near absolute zero with incremental workflow loads — is "different from anything utilities have planned for before," arguing software-defined power systems are needed rather than more substations
- EPRI's Jeremy Renshaw countered that quantum's processor power use is "comparatively small," noting that even with roughly 15 kW per hour for cooling systems, "the energy to cool even millions of ions or atoms is extremely small compared to the energy used for AI training in GW-scale datacenters"
- ComEd announced in 2025 it is powering the Illinois Quantum and Microelectronics Park, a 128-acre multibillion-dollar campus on Chicago's South Side where PsiQuantum plans the first utility-scale, error-corrected quantum computer, with IBM and Infleqtion as additional tenants
- Middle Tennessee Electric is piloting quantum with MTSU's QRISE Center, initially focused on cybersecurity before expanding to optimize 82+ batteries across its 365,000-meter, 2,200-square-mile footprint, with COO Brad Gibson calling it "a toe-in-the-water moment"
- Constellation Energy said quantum systems "are unlikely to materially affect power demand in the foreseeable future," while Duke Energy is building "foundational quantum literacy" with IBM Quantum; Renshaw pegs the market tipping point at 2028-2030 when QPUs can process 100 logical qubits
Why it matters: The load-profile split gives utilities no consensus planning baseline: either quantum demands the software-defined grid architecture Prabhakar advocates, or it's the negligible ~15 kW/hr addition Renshaw claims. EPB and MTE have already committed partnerships and capital ahead of the 100-logical-qubit threshold Renshaw expects by 2028-2030.
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