Scenario Analysis of Cost-Effectiveness of Maintenance Strategies for Fixed Tidal Stream Turbines in the Atlantic Ocean

This paper has developed an operation and maintenance (O&M) model for projected 20 MW tidal stream farm case studies at two sites in the northeast Atlantic France EMEC’s Fall of Warness site UK. The annual energy production, number incidents, downtimes farms corrective planned (preventive) strategies are estimated using Monte Carlo simulations that vary weather windows, repair vessel availabilities, mean failure rates modelled by Weibull distributions. trade-offs between rates, time availability, O&M costs, income minus variable costs were analysed. For all scenarios, a 5-year strategy could considerably decrease 37% both increase net income. Based on detailed sensitivity analysis, study suggested simple decision-making method examines how variation rate changes spare-part would reduce effectiveness preventive strategy. work provides insights into most important parameters affect cost turbines their effect management. output will contribute to concerning strategies.