Energy Efficiency Audit for Renewable Systems Standard Operating Procedure

Product Overview

Summary: This Energy Efficiency Audit for Renewable Systems SOP provides a clear, repeatable framework for assessing the performance of solar, wind and other renewable installations across Australian workplaces. It helps businesses maximise output, cut energy costs, and demonstrate environmental leadership while aligning with relevant Australian standards and regulatory expectations.

This Standard Operating Procedure sets out a structured methodology for planning, conducting and reporting on energy efficiency audits for renewable energy systems in Australian workplaces. It covers grid-connected and off-grid solar PV, battery storage, small-scale wind, and hybrid systems commonly used in commercial, industrial, agricultural and local government settings. The SOP guides users through data collection, system inspection, performance benchmarking, loss analysis and identification of practical improvement opportunities tailored to Australian conditions, tariffs and regulatory requirements.

By implementing this SOP, organisations can move beyond ad-hoc checks and inconsistent reporting to a disciplined, evidence-based audit process. It supports informed investment decisions, optimised operation and maintenance strategies, and better integration of renewable assets with existing electrical infrastructure and demand profiles. The procedure is designed to be used internally by energy and facilities teams or by external consultants who need a defensible, transparent audit framework that can stand up to internal scrutiny, board reporting and stakeholder expectations around sustainability and emissions reduction.

Key Benefits

• Optimise renewable system performance by identifying efficiency losses, faults and configuration issues.
• Reduce operating costs through targeted improvements in energy use, tariff management and demand optimisation.
• Standardise audit practices across sites, ensuring consistent, high-quality reporting and benchmarking.
• Support compliance and due diligence for grants, certifications and investor or board reporting on sustainability performance.
• Prioritise capital and maintenance expenditure based on clear, data-driven recommendations and payback analysis.

Who is this for?

• Energy Managers
• Sustainability Managers
• Facilities Managers
• Operations Managers
• Asset Managers
• Engineering Managers
• Renewable Energy Project Managers
• Environmental, Social and Governance (ESG) Leads
• Maintenance Supervisors
• Consulting Energy Auditors

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Abbreviations
• 3.0 Roles and Responsibilities
• 4.0 Applicable Legislation, Standards and Guidelines
• 5.0 Audit Planning and Preparation
• 6.0 Data Collection Requirements (Energy, Tariffs, Weather and Load Profiles)
• 7.0 Site and System Overview (Technology, Capacity and Configuration)
• 8.0 System Performance Assessment and Benchmarking Methodology
• 9.0 Inspection of Renewable Assets (PV, Inverters, Batteries, Wind and Controls)
• 10.0 Energy Flow and Loss Analysis
• 11.0 Identification of Efficiency Opportunities and Optimisation Measures
• 12.0 Financial Evaluation (Cost-Benefit, Payback and Lifecycle Considerations)
• 13.0 Risk, Reliability and Resilience Considerations for Renewable Systems
• 14.0 Reporting Requirements and Standard Audit Template
• 15.0 Implementation, Monitoring and Review of Audit Recommendations
• 16.0 Recordkeeping and Document Control

Legislation & References

• AS/NZS 3598.1:2014 Energy audits – Commercial buildings
• AS/NZS 3598.2:2014 Energy audits – Industrial and related activities
• AS/NZS 4777.1:2016 Grid connection of energy systems via inverters – Installation requirements
• AS/NZS 5033:2021 Installation and safety requirements for photovoltaic (PV) arrays
• National Greenhouse and Energy Reporting (NGER) Act 2007 (Cth)
• Clean Energy Regulator guidelines for renewable energy systems and reporting
• ISO 50001:2018 Energy management systems – Requirements with guidance for use