Case Studies

Contact Energy Reduces Operator Alarm Load by 60% for Heterogenous Control Systems

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About the Company Contact Energy is the second-largest power producer in New Zealand, with 10 generation sites whose capacity exceeds 2 gigawatts. They include a mix of gas turbine, geothermal, hydroelectric and the trial incorporation of end-user installed photovoltaic into the grid. Challenge Contact's power generation facilities are a hybrid of older and newer technologies. Operator alarms were identified as a challenge and an opportunity for business improvement. Contact identified over 90,000 configured alarms with inconsistent approaches to their creation, definition, and use. Excessively high alarm rates, nuisance alarms and alarm floods at several facilities hindered operators' ability to respond to alarms effectively. Contact Energy Reduces Operator Alarm Load by 60% for Heterogenous Control Systems PAS PlantState Integrity ™ from Hexagon increases operator effectiveness, reduces operator fatigue Business Benefits: • Increased operator situation awareness • Reduced operator load and operator fatigue • Improved process uptime • Centrally managed multi-site platform • Site and enterprise performance reports and dashboards Case Study

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