The encyclopedia · R&D & Science · Operational decision · 2023–2025
A wind-farm maintenance model predicts up to 50% lower operations and maintenance cost.
Researchers combined failure prediction with a maintenance-scheduling optimization to cut the biggest lifetime cost of an offshore wind farm.
EDF · University of Strathclyde · IDCORE
the move
Operations and maintenance are estimated at roughly 30% of an offshore wind farm's lifetime cost, so reducing them is key to making offshore wind cheaper and more deployable.
A three-stage data-driven framework applied to a UK offshore asset found power-converter failures most costly, predicted them with neural networks, and then built a maintenance-scheduling model that simultaneously minimizes repair cost and the revenue lost during downtime.
The work estimated a 42% reduction in maintenance cost from converter failures and predicted that the scheduling model could achieve up to 50% cost reductions versus the baseline; a parallel study found a 44% reduction in preventive-maintenance downtime losses.
why it works
- Offshore access cost and weather make timing dominate
- Downtime revenue loss is often bigger than the repair bill
- Failure prediction lets you fix things before they fail
- Measured: up to ~50% lower O&M cost versus baseline
what transfers
For maintenance the expensive decision is timing, not the cheapest job; coupling failure prediction with a model that accounts for access weather and lost production yields the big savings.
what came after
The framework points to a decision-support tool for offshore maintenance planning, with the same ideas applicable where access is scarce and a unit being offline is expensive, and the research was co-sponsored by EDF as part of the UK IDCORE programme.
references
- A framework for reducing O&M costs at offshore wind farms
- Enhanced Preventive Maintenance Scheduling through Long-Term Hindcast Data Analysis
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