Flex Acquires EPC Power for $4.4B to Accelerate 800V DC AI Data Center Architectures

Flex has entered into a definitive agreement to acquire power-conversion specialist EPC Power in a $4.4 billion transaction funded through a combination of debt and equity. The deal integrates EPC Power's portfolio—including high-efficiency digital rectifiers, DC-DC power converters, and Agile Grid Forming control systems—into Flex's Cloud and Power Infrastructure unit ahead of an anticipated segment spinoff in early 2027. EPC Power is projected to generate roughly $800 million in revenue for 2026, driven by surging demand from hyperscalers and utility-scale operators retooling facilities for AI acceleration workloads. This acquisition marks a major inflection point where power conversion hardware shifts from a commodity facility accessory into a strategic tier of AI system engineering. As accelerator clusters push rack envelopes past 100 to 120 kilowatts, standard 415V and 480V distribution networks face insurmountable physical limits: resistive losses escalate rapidly, necessitating prohibitively thick copper busbars that complicate cooling airflow and structural floor loading. Moving to an 800V DC distribution architecture halves electrical current requirements for equivalent power delivery, dramatically lowering conductor mass and heat dissipation within the whitespace. Facilities teams and infrastructure architects can simplify internal layouts, consolidate multi-stage legacy uninterruptible power supply (UPS) chains, and capture critical efficiency gains. Modern digital infrastructure is grappling with an unprecedented power constraint where generation capacity, utility interconnection queues, and substation stability dictate compute deployment velocities. Public cloud providers and independent AI compute builders are increasingly standardizing on holistic grid-to-chip power designs. Rather than relying on separate utility transformers, standalone UPS banks, and localized power distribution units, next-generation facilities are converging around integrated medium-voltage DC topologies. Furthermore, the steep rise in synchronized inference bursts and massive distributed training runs introduces severe power volatility, making software-defined, grid-forming inverters essential to maintain campus grid stability without relying entirely on local utilities. For data center operators, cloud architects, and infrastructure engineers, the industry's shift toward 800V DC requires immediate technical realignment. Facility designers must evaluate upcoming build specifications to determine whether 480V AC distribution footprints can be replaced by centralized 800V DC busways to avoid stranding capacity in high-density halls. Site reliability and electrical engineering teams must also evaluate the integration of grid-forming inverters with on-site battery energy storage systems (BESS) to buffer millisecond-scale compute spikes that risk triggering utility penalties or substation trips. While deploying 800V DC introduces new protection schemes and specialized supply chain dependencies, the resulting reductions in balance-of-plant footprint and transmission losses make it an operational imperative for multi-megawatt AI deployments.