Flex EPC Power Acquisition: $4.4B AI Power Deal
The Flex EPC Power acquisition will give the data center infrastructure supplier a larger position in the power-conversion technologies required by high-density AI facilities. Flex has agreed to acquire EPC Power for $4.4 billion, adding grid-forming technology, rectification, DC-to-DC conversion capabilities, and a development path toward solid-state transformers as parts of the industry prepare for 800V DC architectures.
Flex announced the definitive agreement on September 3. The transaction is expected to close during the fourth quarter of 2026, subject to regulatory approvals and customary conditions. EPC Power would then join Flex’s Cloud and Power Infrastructure, or CPI, segment.
Flex plans to separate CPI into an independent publicly traded company during the first quarter of 2027. Both the acquisition and separation remain pending, so their final timing and structure could change.
Why Flex Is Paying $4.4 Billion
EPC Power develops power-conversion systems for data centers, energy storage, and grid applications. Flex said the company has more than 15GW of equipment deployed across 62 countries and expects annual U.S. manufacturing capacity to exceed 30GW during 2027.
Flex expects EPC Power to generate approximately $800 million in calendar 2026 revenue. It also forecasts roughly 40% organic revenue growth in 2027 and an EBITDA margin of about 30% that year. These are company projections rather than guaranteed results, but they explain part of the strategic and financial rationale behind the valuation.
The buyer is not simply adding another product line. Flex is attempting to strengthen an integrated infrastructure portfolio covering compute manufacturing, racks, cooling, power delivery, and energy systems. Power conversion sits at the center of that strategy because every increase in accelerator density creates consequences throughout the electrical chain.
Flex EPC Power Acquisition: Key Figures
| Measure | Announced position |
|---|---|
| Transaction value | $4.4 billion, subject to customary adjustments |
| Expected closing | Fourth quarter of 2026 |
| Installed equipment | More than 15GW across 62 countries |
| Expected U.S. capacity | More than 30GW annually in 2027 |
| Expected 2026 revenue | Approximately $800 million |
| Forecast 2027 growth | Approximately 40% organic revenue growth |
| Forecast 2027 EBITDA margin | Approximately 30% |
| Future business | Flex Cloud and Power Infrastructure |
800V DC Is the Larger Infrastructure Story
The strategic rationale extends beyond conventional energy-storage inverters. AI racks are moving toward power densities that make established data center electrical architectures increasingly difficult to scale. Delivering power at higher voltage reduces current for a given power level, potentially lowering conductor requirements and electrical losses.
EPC Power’s platform is being developed for next-generation 800V data center architectures, with capabilities spanning rectification and DC-to-DC conversion. Flex says the technology can operate between grid or onsite energy resources and modern GPU infrastructure, supporting grid stabilization, backup integration, and clean DC power.
The transition is not as simple as replacing one converter. Voltage architecture affects protection, isolation, grounding, connectors, busway, batteries, maintenance procedures, component clearances, controls, and worker safety. Operators must evaluate the whole system from utility connection to rack.
Our guide to data center UPS systems for AI power examines related resilience decisions. Higher-voltage DC may change where conversion occurs, but facilities will still require dependable ride-through, backup generation, isolation, and fault management.
Why Higher Voltage Can Help Dense AI Racks
Electrical power is the product of voltage and current. When voltage increases for a fixed power requirement, current falls. Lower current can reduce resistive losses and the amount of conductive material needed to deliver energy into dense equipment.
That becomes important when one rack requires hundreds of kilowatts and a cluster contains many racks. Conventional low-voltage distribution can demand large conductors, numerous parallel pathways, and substantial copper. Higher-voltage distribution can potentially simplify portions of that path and improve efficiency.
Benefits depend on execution. Conversion efficiency, redundancy, equipment cost, fault behavior, standardization, and serviceability determine whether a proposed design improves total cost and reliability. The theoretical electrical advantage must survive practical facility engineering.
The Data Center Supply Chain Is Converging
The acquisition shows suppliers trying to control more of the physical AI infrastructure stack. Flex already operates across compute manufacturing, power, and cooling. Adding EPC Power strengthens the electrical layer rather than leaving power conversion entirely to separate vendors.
AI campuses increasingly require power, cooling, racks, networking, and compute to be engineered as one system. A decision at the accelerator can affect busway, converters, transformers, cooling equipment, controls, and ultimately the utility connection.
Integrated supply may simplify interfaces, qualification, and delivery. However, customers should still evaluate interoperability, serviceability, component choice, and dependence on a single supplier. An integrated platform only creates value when it remains supportable throughout the facility lifecycle.
Grid-Forming Technology Adds Another Dimension
EPC Power also brings grid-forming capabilities. This matters as data centers combine utility supply with batteries, renewable generation, and behind-the-meter resources. Large AI loads can change rapidly, forcing operators to manage power quality, voltage, frequency, and grid interaction alongside capacity.
Grid-following power electronics normally synchronize with an established electrical waveform. Grid-forming systems can help establish and regulate voltage and frequency within an electrical network. That capability can support stable operation in microgrids or systems containing multiple energy sources.
Power electronics capable of coordinating those resources may become more important as campuses adopt AI data center microgrids and hybrid onsite generation. The value will depend on controls integration, protection design, operating modes, and rigorous commissioning.
Solid-State Transformers Could Reshape Conversion
Flex also points to a development path toward solid-state transformers. Unlike conventional transformers that primarily use magnetic components at grid frequency, solid-state designs incorporate power electronics to convert and control electricity more actively.
Potential advantages include smaller equipment, finer voltage control, bidirectional power flow, and tighter integration with DC distribution, batteries, and renewable energy. These systems could reduce conversion stages or allow power architecture to respond more dynamically to facility conditions.
Solid-state transformers remain an emerging data center technology. Cost, efficiency, reliability, cooling, semiconductor availability, protection coordination, and standards will influence adoption. Operators should distinguish a product roadmap from proven deployment at hyperscale.
The Planned CPI Separation Matters
After the acquisition closes, EPC Power is expected to become part of Flex’s CPI segment. Flex intends to separate that business into an independent listed company in the first quarter of 2027, subject to market conditions and other requirements.
The planned company would focus on data center power, cooling, and integrated infrastructure. Separating it could give investors a more direct exposure to AI infrastructure growth and provide the business with its own capital-allocation strategy.
Execution risk remains. Flex must close and integrate a large acquisition while preparing a corporate separation. Customers should monitor leadership, product-roadmap continuity, warranties, service obligations, supply agreements, and support arrangements through the transition.
What Data Center Leaders Should Evaluate
- Architecture: where rectification and DC conversion occur between the grid and rack.
- Efficiency: losses across every conversion stage under realistic loads.
- Resilience: behavior during utility failures, faults, and maintenance.
- Protection: isolation, grounding, interruption, and arc-flash implications.
- Integration: coordination with batteries, generators, renewables, and controls.
- Standards: interoperability across racks, busways, connectors, and vendors.
- Serviceability: safe maintenance without excessive downtime or specialist dependency.
- Roadmap: compatibility with future GPU racks and facility expansions.
Operators should model several alternatives rather than assuming 800V DC is automatically superior. A sound comparison includes capital cost, conversion efficiency, conductor requirements, usable floor space, redundancy, maintenance, equipment lead time, and expected rack density.
What Happens Next
The acquisition requires regulatory approval and is expected to close in the fourth quarter of 2026. Flex must then integrate EPC Power into CPI while progressing the planned separation during the first quarter of 2027.
Industry leaders should distinguish broad direction from individual vendor forecasts. Momentum behind higher-voltage DC is increasing, but implementation depends on accelerator roadmaps, rack designs, safety requirements, standards, facility architecture, and the economics of replacing established AC systems.
Key indicators will include regulatory progress, manufacturing expansion, product qualification, customer commitments, 800V deployments, and development milestones for solid-state transformers. Flex’s revenue and margin expectations should also be evaluated against actual results as they become available.
Frequently Asked Questions
How much is Flex paying for EPC Power?
Flex has agreed to acquire EPC Power at a value of $4.4 billion, subject to customary adjustments.
When is the acquisition expected to close?
The companies expect closing during the fourth quarter of 2026, subject to regulatory approvals and customary conditions.
Why does 800V DC matter for AI data centers?
Higher voltage can reduce current for a given power level, potentially lowering conductor requirements and electrical losses as rack densities increase.
Will EPC Power remain part of Flex?
EPC Power is expected to join Flex’s CPI segment. Flex plans to separate CPI into an independent publicly traded company in early 2027.
Conclusion
The Flex EPC Power acquisition is another sign that the AI infrastructure race extends far beyond GPUs. Delivering hundreds of kilowatts into a rack requires changes throughout the electrical chain, turning power conversion into a strategic part of compute architecture.
The deal gives Flex technology spanning grid interaction, energy storage, rectification, DC conversion, and a potential route toward solid-state transformers. It also adds integration and corporate-execution risks that customers should monitor.
For data center leaders, 800V DC should be watched as more than a component specification. It could change how future AI facilities are designed from the grid connection to the rack, but adoption will depend on safety, standards, reliability, serviceability, and proven economics.