Product Overview

Summary: This Solar Hot Water Installation Safe Operating Procedure provides a clear, step-by-step framework for safely installing solar hot water systems in Australian workplaces and residential sites. It helps businesses control electrical, working-at-heights, and plumbing hazards while delivering consistent, compliant installations that meet WHS and Australian Standards requirements.

Solar hot water systems combine roofing work, plumbing, and electrical connections, creating a complex risk profile that must be tightly controlled. This Safe Operating Procedure sets out a structured, repeatable method for planning, installing, testing, and commissioning solar hot water systems in line with Australian WHS legislation and industry best practice. It guides workers from pre-start inspections and site risk assessments through to safe access to roofs, isolation of services, installation of collectors and tanks, connection of pipework and electrical components, and final commissioning.

For businesses, this SOP reduces reliance on informal “on the tools” knowledge and replaces it with a documented, auditable process that supports due diligence under WHS laws. It addresses common pain points such as inconsistent installation quality, unsafe ladder and roof practices, inadequate fall protection, poor management of hot work and hot surfaces, and incomplete system testing. By implementing this procedure, organisations can improve worker safety, minimise rework and call-backs, and demonstrate compliance to clients, regulators, and insurers across the Australian solar and plumbing sectors.

Key Benefits

• Ensure safe, consistent solar hot water installations that align with Australian WHS obligations.
• Reduce risk of falls from height, electrical shock, burns, and manual handling injuries during installation.
• Standardise installation quality across teams and subcontractors, reducing defects and call-backs.
• Streamline training and onboarding for new installers with a clear, step-by-step procedure.
• Demonstrate compliance with relevant Australian Standards and Codes of Practice in the event of audits or incidents.

Who is this for?

• Solar Installers
• Plumbers and Gasfitters
• Electricians
• Rooftop Solar Technicians
• Site Supervisors
• WHS Managers
• Construction Project Managers
• Small Business Owners in Solar and Plumbing Services

Hazards Addressed

• Falls from height when working on roofs or ladders
• Slips and trips on roof surfaces, scaffolds, and work areas
• Electrical shock or arc flash from connection to mains power or controllers
• Burns from hot water, hot pipes, and collector surfaces
• Manual handling injuries from lifting and positioning tanks, collectors, and cylinders
• Structural failure or collapse due to incorrect mounting or roof load assessment
• Exposure to UV radiation and heat stress during outdoor work
• Use of power tools and cutting equipment on roofs and in confined areas
• Leaks and water damage from improperly installed pipework or valves
• Contact with asbestos-containing materials in older roof structures

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Abbreviations
• 3.0 Applicable Legislation, Standards and Codes of Practice
• 4.0 Roles, Responsibilities and Competency Requirements
• 5.0 Required Licences, Permits and Authorisations
• 6.0 Tools, Equipment and Materials
• 7.0 Personal Protective Equipment (PPE) Requirements
• 8.0 Pre-Start Planning and Site Risk Assessment
• 9.0 Roof Access, Edge Protection and Fall Prevention Controls
• 10.0 Isolation of Services (Water, Gas, Electrical)
• 11.0 Handling, Lifting and Positioning of Tanks and Collectors
• 12.0 Installation of Roof Mounting Systems and Structural Checks
• 13.0 Plumbing Connections, Pipework, Valves and Insulation
• 14.0 Electrical Connections, Controllers and Sensors
• 15.0 System Filling, Pressure Testing and Leak Checks
• 16.0 Commissioning, Functional Testing and Performance Verification
• 17.0 Hot Work, Hot Surfaces and Burn Prevention Controls
• 18.0 Environmental Management (Water Discharge, Waste and Recycling)
• 19.0 Housekeeping and Demobilisation of Site
• 20.0 Emergency Procedures (Falls, Electrical Incidents, Burns and Leaks)
• 21.0 Documentation, Handover to Client and Warranty Requirements
• 22.0 Training, Competency and Refresher Requirements
• 23.0 Monitoring, Review and Continuous Improvement of the SOP

Legislation & References

• Work Health and Safety Act 2011 (Cth) and equivalent state and territory WHS Acts
• Work Health and Safety Regulations 2011 and state/territory equivalents
• Safe Work Australia – Code of Practice: Managing the Risk of Falls at Workplaces
• Safe Work Australia – Code of Practice: Managing Electrical Risks in the Workplace
• Safe Work Australia – Code of Practice: Construction Work
• AS/NZS 3500 Plumbing and drainage series (including AS/NZS 3500.4: Heated water services)
• AS/NZS 3000: Electrical installations (Wiring Rules)
• AS/NZS 2712: Solar and heat pump water heaters – Design and construction
• AS/NZS 5149 series: Refrigerating systems and heat pumps – Safety and environmental requirements (where heat pump components are integrated)
• AS/NZS 1891 series: Industrial fall-arrest systems and devices
• AS/NZS 4024 series: Safety of machinery (for applicable powered equipment and tools)