The UK’s renewables build-out is accelerating, bringing larger offshore wind farms, deeper water installations, and more complex supply chains. But alongside the expansion, incident rates are quietly rising. A new assessment from DNV argues that the sector’s current safety model, rooted mainly in construction-focused rules, is insufficient for the operational risks emerging across offshore wind and future hydrogen-linked infrastructure.
Rising Complexity Exposes Safety Gaps
DNV’s Offshore Renewables Risk Management: A Pragmatic Safety Case study identifies a growing gap between the offshore renewables sector’s rapid scale-up and the frameworks used to manage major accident hazards. Despite no catastrophic event to date, incident volumes are increasing, and many mirror early-stage patterns previously seen in offshore oil and gas.
Hari Vamadevan, Senior Vice President and Regional Director for the UK and Ireland at DNV, noted that as projects increase in “number, scale and complexity,” accident and injury rates are also moving upward. He further highlighted that the interaction of increasingly sophisticated systems, high-capacity turbines, deep-water foundations, high-voltage transmission equipment, and marine logistics, creates new categories of risk that legacy regulation does not explicitly cover.
According to trade reports, the UK’s offshore industry is entering a phase where floating wind prototypes, HVDC connections, and autonomous marine operations introduce unfamiliar interfaces between mechanical, electrical, and digital systems. These interactions, Vamadevan emphasized, demand a structured approach to identifying and managing major accident hazards, an area where oil and gas regulation has decades of precedent.
Oil and Gas Safety Lessons Highlight the Regulatory Gap
The offshore oil and gas sector operates under stringent safety case regulations shaped by disasters such as Piper Alpha and Deepwater Horizon. Renewables, by contrast, are governed largely by the Construction (Design and Management) Regulations, which center on occupational safety but do not require operators to demonstrate control of major accident risks.
DNV’s study concludes that occupational-safety-first guidance is no longer sufficient. While many offshore wind operators apply voluntary risk controls, the absence of mandated safety cases leaves varying interpretations of what constitutes adequate oversight.
DNV’s Energy Transition Outlook Report UK 2025 forecasts offshore wind capacity climbing from roughly 14 GW today to 90 GW by 2050, including 10 GW dedicated to hydrogen production. Floating offshore wind, hostile to traditional fixed-foundation assumptions, will account for nearly a quarter of total capacity.
These shifts create new pressure points. Floating platforms introduce mooring-line failure risks; green hydrogen systems add high-energy process hazards; and large-scale maintenance operations rely increasingly on complex marine coordination. Oil and gas has long-established protocols for these issues, but their renewables counterparts must adapt them without simply copying frameworks built for fossil-fuel processing.
David Dimelow, Principal Engineer and the study’s lead author, said the goal is not to replicate oil and gas safety disciplines wholesale, but to create “a fit-for-purpose safety case approach” that renewables operators can use to consistently understand and mitigate major accident potential. While the work focuses on the UK, the method is readily transferable internationally.
The Missing Strategic Shift in Renewables
One overlooked factor that could shape the sector’s next phase is how insurance markets are recalibrating around large-scale renewables risk. According to recent industry reports, underwriters are tightening coverage terms for offshore wind due to rising claim frequencies and escalating repair costs, particularly for subsea cables and turbine components exposed to harsher marine conditions. As capacity additions accelerate, operators who can demonstrate rigorous, transparent major-accident risk governance will be better positioned to secure affordable coverage and avoid delays tied to insurer scrutiny.