Why Battery Safety Will Define the Next Decade of Energy Storage

Battery energy storage safety and bankability are becoming defining priorities for the European storage market. At Balkan Battery Day 2026, one message stood out clearly from the keynote address delivered by An Yang, Director of Huawei Digital Power Southeast Europe: the future of battery energy storage will not be defined purely by scale, but by trust, safety and long-term reliability.

As battery storage deployment accelerates across Europe, particularly in Southeast Europe, the industry is entering a more mature phase. The conversation is no longer centred only on megawatts installed or project pipeline announcements. Increasingly, developers, investors, insurers and grid operators are asking tougher questions about operational resilience, lifecycle performance and risk management.

Huawei Digital Power, a Gold Sponsor of the event, used the Athens gathering to underline how these issues are becoming central to the future economics of energy storage.

Safety Is Becoming a Financial Issue

One of the strongest themes throughout the presentation was battery safety.

According to An Yang, Huawei has made safety and quality its top priority since entering the battery energy storage sector. That focus reflects a wider shift taking place globally.

As battery systems become larger and more deeply integrated into national grids, safety incidents can have consequences far beyond equipment damage. Thermal runaway events, system failures or fire incidents can influence insurance costs, financing conditions, permitting approvals and public acceptance of large-scale storage projects.

In practical terms, safety is increasingly becoming a bankability issue.

Huawei described how its approach extends beyond battery cells themselves and includes component standards, supplier selection, installation practices, maintenance procedures and long-term system monitoring. This systems-based approach is becoming increasingly important as asset owners seek technologies capable of delivering stable performance over 10 to 15 year operating periods.

Energy Storage Is Becoming Critical Infrastructure

The European battery sector is evolving from rapid market expansion into critical infrastructure development. That transition is changing expectations placed on technology providers.

Battery projects are no longer viewed simply as standalone energy assets designed for short-term trading opportunities. They are becoming essential infrastructure for balancing renewable generation, supporting grid stability and enabling national decarbonisation targets.

As a result, project developers and investors are paying greater attention to lifecycle durability, operational data, cybersecurity, grid integration capability and service support.

Huawei highlighted its substantial investment in research and development, noting that more than half of its workforce is focused on R&D and that over 20 percent of annual turnover is reinvested into innovation. The company also emphasised its growing European footprint, including research centres dedicated to grid simulation and energy technologies.

Grid-Forming BESS Could Reshape Southeast Europe

Another important point raised during the keynote was the role of grid-forming battery energy storage systems.

As renewable penetration increases, electricity networks face growing stability challenges. Traditional fossil fuel generation has historically provided inertia and frequency stability. Solar and wind generation, while essential for decarbonisation, do not naturally provide those same stabilising functions.

Grid-forming battery systems aim to bridge that gap.

Unlike conventional storage systems that simply respond to grid conditions, grid-forming technologies can actively support voltage and frequency stability, strengthening overall grid resilience. Huawei identified grid-forming BESS and smart microgrid technologies as key components of its digital power strategy.

This could become particularly relevant for Southeast Europe, where renewable deployment is accelerating rapidly while parts of the transmission infrastructure still require significant modernisation.

Bankability Is Becoming the Industry’s Key Differentiator

Toward the end of the keynote, Huawei referenced its position in Bloomberg’s bankability survey rankings. While often viewed as a corporate metric, bankability is becoming one of the most important competitive differentiators in the energy storage market.

Large-scale battery projects require substantial capital investment, and financiers are becoming increasingly selective about technology providers. Developers need partners capable of demonstrating not only technical performance, but also operational consistency, service capability and long-term financial stability.

The next phase of market growth will favour suppliers capable of combining advanced technology with strong safety credentials, proven operational data and the ability to support projects throughout their full lifecycle.

That was ultimately the core message from Huawei Digital Power’s address in Athens: success in battery energy storage will depend not only on deploying more capacity, but on building systems that can earn confidence over decades of operation.