ABB and BCG make strategic case for hybrid AC/DC power grids
ABB and Boston Consulting Group (BCG) have published a joint report arguing that direct current (DC) technology is no longer a niche solution but a strategically necessary component of future electrical systems. The report, titled The Strategic Case for Hybrid AC/DC Power: Shaping the Transition to the Next Electrical Architecture, contends that the fastest-growing energy loads and sources, including solar photovoltaic arrays, batteries, electric vehicles and AI data centres, are inherently DC-based, making a hybrid alternating current (AC) and DC architecture the logical direction for grid and facility design.
The report stops short of declaring DC a replacement for AC. Instead, it frames the two as complementary: AC will remain the backbone of transmission and regional distribution networks, while DC is better suited to facilities where power is generated, stored and consumed without the conversion losses that come with repeated AC-to-DC and DC-to-AC switching.
The data-centre driver
ABB and BCG identify AI data centres as the most immediate commercial catalyst for DC adoption. As AI workloads push power density higher, the report finds that 800-volt DC (800 VDC) distribution is emerging as the defining architecture for next-generation AI infrastructure. The argument is that a native DC distribution system allows operators to extract more compute capacity from a constrained grid connection, without expanding the physical connection itself.
ABB chief executive Morten Wierod said that enabling broader DC adoption requires "common technologies, harmonised standards, and the workforce capabilities to support implementation at scale." The company has held more than 700 DC-related patents and says it has supplied DC-based onboard power systems for vessels that achieved fuel savings of up to 27 per cent. Those figures are reported from ABB's own promotional materials and have not been independently verified.
Beyond data centres, the report points to automation-intensive manufacturing, commercial buildings and microgrids as near-term opportunities. ABB also notes it is exploring DC distribution for low-carbon aluminium production and green-hydrogen generation, though no specific projects or partners are named.
Standards and skills: the real barriers
The report's most practically useful finding for investors and procurement leads is its reframing of the barriers to DC adoption. It argues that historical concerns around safety and economics increasingly reflect outdated assumptions about the technology, and that the primary obstacles are now fragmented standards across jurisdictions and a shortage of engineers with DC-specific skills.
This matters commercially. A lack of harmonised standards raises integration costs and procurement risk for project developers; a skills gap lengthens project timelines. Both constraints add to the cost of capital for DC-centric infrastructure projects, even where the underlying technology economics are favourable.
The grid-technology market context is worth noting. Interest in DC distribution has been growing for several years, supported by the falling cost of power electronics and the explosion of inverter-based renewable generation, which already produces DC that must be converted to AC for transmission. High-voltage direct current (HVDC) transmission has been used for decades for long-distance and subsea links; the report's focus is the shorter-range, facility-level case, which is less established commercially and where the standards landscape is more fragmented.
Market and policy read-across
No new capital commitment, partnership, or product launch accompanies this report. It is a positioning document, and readers should assess it accordingly. ABB has a clear commercial interest in accelerating DC adoption across its electrification and automation product lines. BCG's co-authorship lends third-party credibility but does not constitute independent verification of the efficiency and cost claims.
For policymakers, the report's call for harmonised DC standards has read-across to grid modernisation agendas in the EU and UK, where regulators are grappling with how to integrate growing volumes of distributed generation and storage. For investors, the more actionable signal is the identification of 800 VDC data-centre architecture as a near-term scaling opportunity, which points to demand for DC switchgear, protection equipment and power electronics in the data-centre supply chain over the next two to three years.