Vertiv should be a net winner in power content per megawatt as AI racks move to 800V DC. The shift will cannibalize its legacy UPS and AC distribution, but it is building the replacements: centralized rectifiers, 800V busway, DC energy storage and rack-level DC/DC, while cooling remains a big opportunity either way. Nvidia targets 800V DC for MW-scale racks from 2027, though only 15-25% of data centers may adopt it by 2030, mostly as hybrids on an AC backbone, so AC isn't going away. x.com 

HVDC and 800V DC power delivery is the theme to focus on now, with STMicroelectronics, Navitas, Hyliion and Ideal Power as the preferred bets. Across the AI buildout, power and optics keep gaining narrative strength and attention, while packaging remains critical but is increasingly well understood by the market. x.com  x.com 

Navitas's place in NVIDIA's 800 VDC ecosystem carries little pricing power because the silicon tier is crowded. NVIDIA names fourteen silicon suppliers, Navitas among them, and rent comes from scarcity; SiC and GaN also split the socket by stage. Per SemiAnalysis, rollout is phased, and the first stage is a retrofit into existing wiring with the smallest content per site. Unlike optical, no 800 VDC tier has disclosed dollars yet; a first order with a figure and date would change the picture. … Show more

Per Truist, AI data center capacity grows from 24GW to 100GW by 2030, and every watt must be converted, stored and cooled before a GPU runs, paying firms between grid and chip. DC-DC conversion is the layer to watch, as rising density makes each efficiency point worth more: Monolithic Power, Vicor, Infineon, TI, Analog Devices, Renesas, onsemi. Panasonic appears in six layers and Delta in four, paid more than once per rack. Eaton, Vertiv, GE Vernova, Schneider and ABB bring power in. x.com 

AI data-center spending flows beyond GPUs and operators into networking, optics, power and cooling. Nvidia, AMD, Broadcom and Marvell supply chips; Arista, Nokia and Credo connectivity; Applied Optoelectronics and Lumentum optics; Vistra, Constellation and Bloom power; Vertiv and Modine cooling. Meta's $140B spending this year illustrates the scale, per a commenter with whom the point is agreed. x.com  x.com 

Constellation Energy, Talen, NRG and Modine look weak because of the data-centers-in-space narrative. Once the first big solar-powered rack of GPUs reaches orbit, the market will react and cooling names will crash too, whether or not many space GPUs arrive this decade. @InvestsCletus adds that regulatory hurdles to deals between existing power plants and data centers also weigh on these names, while distributed-generation builders like Bloom Energy stay strong. x.com  x.com  x.com 

AI's electricity shortfall creates a massive opportunity for companies solving the power bottleneck. Morgan Stanley estimates a 32 GW US data-center power shortfall by 2028. Constellation Energy and Vistra are nuclear names, Bloom Energy in fuel cells, GE Vernova in power generation and Eaton in grid infrastructure. x.com 

AI data centers need cooling, electricity and transmission, sustaining the case for Vertiv, GE Vernova and Quanta Services. Vertiv's sales rose 26% in the past year; its systems cool AI chips. GE Vernova is the go-to power trade for its gas turbines. Quanta builds the lines to data centers and has a record $53B backlog. x.com  x.com  x.com 

Power Integrations addresses the coming AI data-center power bottleneck, where the real alpha lies. Next-generation AI data centers are shifting to 800 VDC, and traditional silicon cannot handle the power density and heat of megawatt-scale racks. Power Integrations is working with Nvidia on that transition, and its 1250V and 1700V PowiGaN switches exceed 98% efficiency while cutting copper and board space. Despite the run, its repricing is in early innings as data-center revenue scales. x.com 

AI data centers are hitting a power wall, which favors builders of heavy power and cooling hardware over chipmakers alone. Co-packaged optics let racks pack far more compute, but optical clusters draw enormous current, so new campuses need gigawatts the grid cannot supply, and utility hookups take 5-10 years. Vertiv supplies liquid cooling, Eaton and Powell switchgear and transformers, GE Vernova gas turbines for on-site power, and Bloom Energy fuel cells that skip the grid. x.com