Product Overview

Summary: This Thermal Solar Plant Operational Guidance SOP sets out a clear, step‑by‑step framework for safely operating, monitoring and maintaining thermal solar generation assets in Australian conditions. It supports WHS compliance while maximising plant reliability, ensuring your teams can manage high‑temperature systems, pressurised circuits and integrated electrical infrastructure with confidence.

Thermal solar plants combine high‑temperature fluids, concentrated solar radiation, complex control systems and grid‑connected electrical equipment. Without a robust and consistent operating procedure, organisations are exposed to avoidable safety incidents, unplanned outages and compliance gaps under Australian WHS legislation. This SOP provides a structured operational blueprint that guides workers through plant start‑up, normal operation, load changes, shutdown and emergency responses, with a strong emphasis on hazard identification and control at each stage.

Developed for Australian renewable energy operations, this document translates WHS and technical requirements into practical, on‑the‑ground instructions that operators can follow in real time. It addresses the specific risks associated with concentrating solar power (CSP) and thermal storage systems, including molten salt or thermal oil circuits, steam generation, high‑pressure pipework, and live electrical systems. By standardising how the plant is run, monitored and maintained, the SOP helps businesses minimise thermal and mechanical stress on equipment, reduce the likelihood of leaks, fires and burns, and demonstrate due diligence to regulators, clients and insurers.

For organisations scaling up renewable assets or transitioning from traditional generation, this SOP also supports consistent training and competency development. It creates a shared operational language between control room staff, field technicians and management, enabling faster onboarding, clearer communication during abnormal events, and more reliable performance data for continuous improvement initiatives.

Key Benefits

• Ensure safe, consistent operation of thermal solar plant equipment across all shifts and teams.
• Reduce the risk of burns, fires, pressure releases and electrical incidents associated with high‑temperature, high‑energy systems.
• Demonstrate compliance with Australian WHS legislation, plant safety obligations and relevant Australian Standards.
• Standardise operator training, handovers and competency assessment for thermal solar plant personnel.
• Optimise plant reliability and asset life by controlling start‑up, ramp‑up and shutdown processes to minimise thermal and mechanical stress.

Who is this for?

• Plant Managers
• Operations Managers
• Control Room Operators
• Thermal Plant Technicians
• Mechanical Fitters
• Electrical and Instrumentation Technicians
• WHS Managers and Advisors
• Maintenance Supervisors
• Commissioning Engineers
• Renewable Energy Project Managers

Hazards Addressed

• Exposure to high‑temperature surfaces, fluids and steam leading to burns and scalds
• Failure or rupture of pressurised systems (steam lines, receivers, storage tanks, heat transfer circuits)
• Fire and explosion risks from thermal oils, insulation materials and electrical faults
• Glare and concentrated solar radiation exposure affecting eyesight and situational awareness
• Electrical shock and arc flash hazards from HV and LV switchgear, inverters and control systems
• Slips, trips and falls around pipe racks, platforms, cable trays and uneven outdoor terrain
• Confined space risks in tanks, pits, valve chambers and enclosed plant rooms
• Manual handling injuries during valve operation, panel cleaning, component replacement and maintenance activities
• Heat stress and dehydration for outdoor workers in high‑radiation, high‑ambient temperature conditions
• Chemical exposure from heat transfer fluids, water treatment chemicals and cleaning agents

Included Sections

• 1.0 Purpose, Scope and Application
• 2.0 Definitions and Plant Overview
• 3.0 Roles, Responsibilities and Authority Levels
• 4.0 Applicable Legislation, Standards and Site Requirements
• 5.0 Plant Description and Process Flow (Solar Field, Receiver, Heat Transfer System, Storage, Steam Cycle, Electrical Systems)
• 6.0 Hazard Identification and Risk Controls for Thermal Solar Operations
• 7.0 Required Competencies, Induction and Training Requirements
• 8.0 Personal Protective Equipment (PPE) and Safety Equipment
• 9.0 Pre‑Start Checks and Plant Readiness Verification
• 10.0 Normal Start‑Up Procedures (Cold, Warm and Hot Starts)
• 11.0 Solar Field Operation and Tracking System Guidance
• 12.0 Heat Transfer Fluid and Thermal Storage System Operation
• 13.0 Steam Generation, Turbine and Balance‑of‑Plant Operating Steps
• 14.0 Load Changes, Ramping and Grid Integration Procedures
• 15.0 Normal Shutdown and De‑energisation Procedures
• 16.0 Abnormal Conditions and Alarm Response Protocols
• 17.0 Emergency Procedures (Leaks, Fires, Loss of Containment, Power Failure, Extreme Weather)
• 18.0 Isolation, Lockout/Tagout and Permit‑to‑Work Requirements
• 19.0 Confined Space Entry and Working at Heights Controls
• 20.0 Environmental Management (Spills, Noise, Emissions and Waste)
• 21.0 Inspection, Monitoring and Routine Operational Checks
• 22.0 Maintenance Interface, Handover and Restart Requirements
• 23.0 Incident Reporting, Investigation and Corrective Actions
• 24.0 Documentation, Records and Control of Revisions
• 25.0 Continuous Improvement and Periodic Review of the SOP

Legislation & References

• Work Health and Safety Act 2011 (Cth) and equivalent state and territory WHS legislation
• Work Health and Safety Regulations 2011
• Safe Work Australia – Managing the Work Environment and Facilities Code of Practice
• Safe Work Australia – Managing Risks of Plant in the Workplace Code of Practice
• Safe Work Australia – Hazardous Manual Tasks Code of Practice
• Safe Work Australia – Confined Spaces Code of Practice
• AS/NZS 3000:2018 Electrical installations (Wiring Rules)
• AS 3873: Pressure equipment – Operation and maintenance
• AS/NZS 3788: Pressure equipment – In-service inspection
• AS 61508 / AS 61511 series: Functional safety of safety‑related systems (for safety‑instrumented systems and controls)
• AS/NZS ISO 45001:2018 Occupational health and safety management systems
• AS 1657: Fixed platforms, walkways, stairways and ladders – Design, construction and installation