Product Overview

Summary: This Standard Operating Procedure sets out a clear, repeatable process for designing safe, reliable and compliant hybrid renewable energy systems for Australian conditions. It guides your team from initial site assessment through to final design sign-off, ensuring every project meets technical, regulatory and commercial requirements.

Hybrid renewable systems – integrating technologies such as solar PV, wind, battery storage, diesel or gas generation and smart controls – are increasingly being deployed across Australia in remote communities, commercial facilities and industrial operations. Without a structured design process, organisations risk underperforming systems, grid compliance issues, unsafe configurations and costly rework. This Standard Operating Procedure provides a disciplined, step-by-step framework to plan, analyse, design and document hybrid renewable solutions that are technically robust, financially viable and aligned with client objectives.

The procedure standardises how your team approaches resource assessment, load profiling, technology selection, system sizing, grid connection, protection coordination and safety-by-design considerations. It embeds Australian standards, network service provider requirements and WHS obligations into the design workflow, so that safety and compliance are addressed upfront rather than after installation. By implementing this SOP, you create a consistent design methodology that supports quality assurance, accelerates approvals, and reduces design risk across your portfolio of hybrid renewable projects.

Key Benefits

• Standardise hybrid system design practices across projects, teams and locations.
• Reduce design errors and omissions that lead to rework, delays and cost overruns.
• Ensure designs align with Australian standards, DNSP requirements and WHS obligations from the outset.
• Improve system performance, reliability and lifecycle cost outcomes through consistent engineering analysis.
• Streamline client approvals and stakeholder engagement with clear, defensible design documentation.

Who is this for?

• Renewable Energy Engineers
• Electrical Engineers
• Sustainability Managers
• Energy Consultants
• Project Managers – Energy & Infrastructure
• Engineering Team Leaders
• Design & Drafting Coordinators
• Asset Managers in Utilities and Councils

Included Sections

• 1.0 Purpose, Scope and Application
• 2.0 Definitions, Abbreviations and System Types
• 3.0 Roles, Responsibilities and Competency Requirements
• 4.0 Applicable Standards, Codes, DNSP and WHS Requirements
• 5.0 Project Initiation and Design Inputs
• 6.0 Site Assessment and Resource Evaluation (Solar, Wind, Other)
• 7.0 Load Profiling and Demand Analysis
• 8.0 Technology Selection and System Architecture Options
• 9.0 System Sizing and Energy Modelling Methodology
• 10.0 Electrical Design: Single Line Diagrams, Protection and Earthing Concepts
• 11.0 Battery Storage and Backup Generation Design Considerations
• 12.0 Grid Connection, Export Limits and Network Compliance
• 13.0 Safety-in-Design and WHS Risk Considerations
• 14.0 Control Systems, Monitoring and Communications Design
• 15.0 Structural, Civil and Layout Design Interfaces
• 16.0 Environmental and Planning Considerations
• 17.0 Design Documentation Requirements and Drawing Standards
• 18.0 Design Review, Verification and Approval Process
• 19.0 Handover of Design Package and Records Management
• 20.0 Continuous Improvement and Lessons Learned

Legislation & References

• AS/NZS 3000: Electrical installations (Wiring Rules)
• AS/NZS 5033: Installation and safety requirements for photovoltaic (PV) arrays
• AS/NZS 4777.1: Grid connection of energy systems via inverters – Installation requirements
• AS/NZS 5139: Electrical installations – Safety of battery systems for use with power conversion equipment
• AS 2067: Substations and high voltage installations exceeding 1 kV a.c.
• National Construction Code (NCC) – Energy efficiency and building services interfaces
• Work Health and Safety Act 2011 (Cth) and model WHS Regulations – Duties relating to design of plant and structures
• Clean Energy Council guidelines for grid-connected and stand-alone power systems (where applicable)
• Relevant Distribution Network Service Provider (DNSP) technical rules and connection standards