Renewable Energy System Failure Investigation

Deconstructing Failure:
Securing the Future of Renewable Energy

A Solar Park

Delivering Certainty for BESS, Solar, and Wind Systems

As investment in renewable energy grows, so does the complexity and financial exposure of system failures. Battery storage fires, solar park faults, and wind turbine breakdowns can cause multi-million-dollar losses with contested, multi-party liability. Mission Critical Forensics provides expert, evidence-based investigations into failures across all three asset classes — determining the precise root cause and delivering the technical clarity needed for insurance claims, subrogation recovery, and loss prevention.

Our Expertise in Renewable Energy Systems:

I. Battery Energy Storage Systems (BESS)

We investigate complex failures within Battery Energy Storage Systems (BESS) across the full spectrum of loss types — from confined thermal events in a single battery module, to facility-level fires and explosions that destroy an entire installation.

Systems and failure types:

  • Battery module and rack fires
  • BESS explosions
  • Battery Management System failures
  • Electrical protection and power conversion equipment failures
  • Total loss and partial loss events at utility-scale, commercial, and industrial BESS installations
  • Installation, commissioning, and design compliance — reviewed against NFPA 855, UL 9540A, IEC 62619, and CSA C22.1

Investigating a BESS fire, explosion, or thermal event?

BESS fire investigation is a distinct forensic discipline. We provide dedicated specialist investigation services for battery storage fires and thermal runaway events.

→ Learn more: BESS Fire & Explosion Investigation

II. Solar Power Failures

Our experience includes root cause analysis of failures across commercial and utility-scale solar parks — from rooftop C&I (commercial and industrial) systems to large ground-mounted arrays. Solar PV (photovoltaic) failures span a wide range of loss types: sudden, high-consequence events such as inverter fires and DC arc faults, and progressive failures such as systematic module degradation or string circuit deterioration that surface only when output losses trigger a claim. We investigate the full system — from individual PV modules through to the medium-voltage grid connection.

System and failure types we investigate:

  • PV module failures

  • DC electrical system failures 

  • Inverter and power electronics failures

  • Medium-voltage transformer and switchgear failures

  • Racking and structural failures

  • Lightning and surge damage

III. Wind Turbine Failures

We provide forensic investigation of wind turbine failures across both mechanical and electrical systems. Wind turbines are among the most demanding assets to investigate — operating under high cyclic loads in remote environments, with complex multi-vendor supply chains that make liability attribution contentious. Whether the loss involves a catastrophic gearbox seizure, a nacelle fire, or a blade structural failure, our investigations reconstruct the precise sequence of events and identify the system and component at the origin of the loss.

System and failure types we investigate:

  • Drivetrain failures

  • Blade failures 

  • Generator and power converter failures

  • Nacelle fires

  • Tower and foundation events

  • Control and SCADA system failures

All complex loss investigations are led by our Principal Engineer, Alicia Yan P.Eng.

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