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BY Jennifer Willenbrock
Driven by the urgent need to transition towards sustainable, reliable and efficient energy systems, Europe’s energy landscape continues to undergo major transformation. With significant investments pouring into emerging technologies such as green hydrogen, advanced nuclear solutions and carbon capture, investors and stakeholders are keen to see these technologies deliver on their promises. However, as with any innovation, these technologies carry inherent risks — making technical due diligence essential for evaluating feasibility, scalability and long-term viability.
Among the many emerging energy solutions, energy storage technologies — particularly battery energy storage systems (BESS) — have garnered increasing attention due to their role in stabilising power grids, integrating renewables and enhancing energy security.
Investors and policymakers are also exploring multiple innovative energy solutions to meet the growing demand for clean and efficient power. These technologies include green hydrogen, advanced nuclear technologies, and carbon capture, utilisation and storage (CCUS). Each offers potential but also presents technical and financial challenges that require careful evaluation. Among these, energy storage systems stand out as one of the most immediate and commercially viable options for supporting renewable integration and improving grid reliability.
Renewable energy sources such as solar and wind are intermittent by nature, generating electricity only when the sun is shining or the wind is blowing. This variability poses challenges for grid stability, making energy storage systems critical for balancing supply and demand. Energy storage solutions, including lithium-ion BESS, flow batteries and alternative storage technologies, provide a means to store excess energy and deploy it when needed.
BESS implementation has emerged as the leading solution for large-scale energy storage due to its efficiency, modularity and declining costs. However, despite their advantages, BESS projects require thorough technical due diligence to address key challenges such as battery degradation, thermal management, fire safety and system integration.
While BESS projects offer numerous benefits, improper deployment or inadequate assessments can lead to underperformance, safety risks and financial losses. Effective technical due diligence for BESS should encompass:
On a recent BESS project, technical due diligence supported the evaluation of a multi-site portfolio by identifying design life considerations, maintenance strategies and thermal management risks before construction began. By highlighting these technical and operational factors early, the team helped inform investment decisions and contributed to the broader adoption of energy storage solutions.
Integrating engineering and consulting knowledge and experience provides a holistic evaluation of energy projects by:
As energy technologies continue to evolve, investors, developers and policymakers must prioritize technical due diligence to navigate uncertainties and unlock the full potential of emerging solutions.
The energy transition is accelerating quickly, with emerging technologies offering new opportunities for sustainable power generation and storage. Still, careful evaluations are necessary to be ready for inevitable challenges. With technical due diligence — focused on technology performance, safety, grid integration, supply chain risks and life cycle costs — these innovations will not only be promising on paper but also offering viable, real-world opportunities.
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