Go to Main Content

Selling the business case

The business case should sell your project by providing enough detail that people will feel confident about approving the project if it gets put to a vote.

The business case should enable the executive committee to:

  • Proceed with the recommendation
  • Obtain additional quotations if required
  • Brief a contractor or specialist consultant
  • Seek expert technical support

Below is a template business case document that you can use as a guide.

Business case template 600.6 KB

What should you include?

Below is an overview of what should be included a professional and compelling business case.

Description of the project

  • Overview of the project, for example: To replace the existing pool pump with a new, energy efficient, variable-speed model
  • List code requirements to demonstrate an understanding of relevant legislation, for example, a hot water supply system must comply with: Section 8 of AS/NZS 3500.4:2003 Heated Water Services, or clause 3.38 of AS/NZS 3500.5:2000
  • Provide an option for an energy audit or ‘base building assessment’ to be carried out first, and specify who might do this


Product specifications

  • Suggest a few different options if assets need to be purchased, but be clear about your preferred or recommend option
  • Outline a process that would help people to evaluate the most appropriate technology if they need to decide


Cost estimate

  • Include a cost estimate and breakdown
  • Include the costs for procurement, labour, consultants, and measurement
  • Provide two or three quotes by suppliers or installers in the appendix of your business case
  • Suggest a procurement process if the project requires the purchase of new assets for common property


Calculate the potential saving including:

  • Energy cost savings
  • Other savings
  • Total savings


Estimate the payback period

  • State the current costs and potential for savings
  • State the potential return on investment (ROI)
  • Costs associated with: procurement, labour, consultants, and measurement should be included in the ROI


Source of funding

  • Suggest a source of funding, for example, the ordinary building sinking fund, a fund raised by a special levy, a bank loan
  • Clarify whether the project is eligible for any government rebates or financial incentives


Implementation and impact

  • List all the tasks that would be completed in order to implement the change/s
  • List the potential disruptions for residents living in the apartment building
  • Outline the timeline for the project and suggest a start date if possible
  • Suggest a process for the executive committee to elect appropriate people to manage the project from here, or form a sub-committee
  • Clarify whether further assistance from an expert should be sought, and under what circumstances


Create a measurement and verification plan that states:

  • What to measure and how to measure it
  • The periods of measurement
  • Adjustments to be made for things like occupancy, units of production, temperature



  • Main assumptions, input data, supporting calculations, specialist reports, data logging and quotes should be included in an appendix