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The Strategic Case for Hybrid AC/DC Power: Insights from ABB and BCG

Introduction

In a rapidly evolving landscape of energy technologies, the latest report from ABB and the Boston Consulting Group (BCG) emphasizes a pivotal shift toward hybrid AC/DC power systems. This change is primarily driven by the escalating demands for electricity generated through innovative technologies like Artificial Intelligence (AI), increased electrification, and the growth of renewable energy sources.

The Shift in Power Technology

The report, titled "The Strategic Case for Hybrid AC/DC Power: Shaping the Transition to the Next Electrical Architecture," underscores that both Alternating Current (AC) and Direct Current (DC) technologies will play essential roles in future power supply systems. The future does not entail choosing one over the other; rather, it advocates for a hybrid approach that leverages the strengths of both technologies. While AC systems will continue to form the backbone of most transmission and distribution networks, DC is expected to become increasingly significant, particularly in applications where energy sources and consumer technologies are inherently DC-based.

The Growing Influence of DC Technology

As technologies such as photovoltaics, batteries, electric vehicles, AI data centers, and various automation systems rely primarily on DC, there is compelling evidence that reducing the number of conversion steps between generation, storage, and consumption can optimize efficiency. This advancement not only enhances the capacity of existing grid connections but also simplifies the integration of renewable energy sources and storage systems.

The report highlights AI data centers as immediate drivers for the adoption of DC technology. Traditional electrical architectures are nearing their practical limits due to increasing power density requirements imposed by AI workloads. The establishment of an 800V DC distribution framework has been identified as a key architecture for next-generation AI infrastructure, which enables operators to maximize computing capacity within limited grid connections while improving energy efficiency.

Opportunities Beyond Data Centers

Interestingly, the transition to DC technology offers opportunities beyond data centers. Industries with high automation processes, commercial buildings, and potentially even residential architectures can benefit from DC systems or subsystems. By minimizing conversion losses and facilitating better integration of on-site renewable sources and storage technologies, these sectors can greatly improve operational efficiency.

Collaborative Efforts Needed for Advancement

Morten Wierod, the CEO of ABB, states, “In a world that will need more power while operating within the constraints of existing infrastructures, the broader adoption of DC systems demands enhanced collaboration among business leaders, policymakers, and technology stakeholders.” He notes that ABB has been instrumental for over 25 years in helping customers reduce conversion losses, boost power transmission efficiency, and mitigate power demand through DC solutions.

To achieve a broader application where economic arguments are most compelling, there is a need for harmonized standards and skilled professionals to support large-scale implementations of DC systems. He emphasizes that both AC and DC are crucial in developing a more efficient, resilient, and future-ready power grid.

Addressing Misunderstandings

The report also addresses long-held misconceptions that have hindered the adoption of DC systems, concluding that concerns regarding scale, safety, and cost-effectiveness reflect outdated assumptions not aligned with modern technology capabilities. Instead, inconsistent standards and a lack of specialized DC expertise are recognized as primary challenges that must be overcome to expedite its usage.

ABB's Leadership in DC Technology

ABB's commitment to exploring the energy-saving potential of DC systems is backed by substantial innovations, including their introduction of a DC-based shipboard power supply system that achieved fuel savings of up to 27%. In 2022, ABB launched the industry's first semiconductor circuit breaker for DC applications. With more than 700 DC-related patents, the company is now expanding the reach of DC distribution across various applications such as electric mobility, microgrids, and data centers. Furthermore, ABB is collaborating with industry partners to explore how DC distribution can support low-carbon aluminum production and green hydrogen generation.

Conclusion

The full report can be accessed online at ABB Hybrid AC/DC Power. As a global leader in electrification and automation, ABB continues to pave the way toward a more sustainable and resource-efficient future. Through the integration of engineering and digitalization expertise, ABB empowers industries to enhance performance and sustainability — an initiative they encapsulate with the phrase "Engineered to Outrun."

With a legacy spanning over 140 years and around 110,000 employees worldwide, ABB is publicly listed on both the SIX Swiss Exchange as 'ABBN' and the Nasdaq Stockholm as 'ABB'.

Contact Information

For further inquiries, journalists can reach out to ABB’s media contact at +41 43 317 71 11, or email them at [email protected] Investor Relations can be contacted at the same number or by emailing [email protected]

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