Project Impact Assessment with M&V

This page provides information about the Project Impact Assessment with Measurement and Verification method (PIAM&V).

About this method

The Project Impact Assessment with Measurement and Verification (PIAM&V) method is based on internationally recognised measurement and verification principals to calculate energy savings. It allows 'equipment level' energy savings to be deemed for up to ten years, using persistence and confidence factors to discount initial certificate creation. In this method, the term ‘energy’ may refer to electricity, gas, or both.

Using the PIAM&V method

Method Guide

Method Guide: PIAM&V1.68MB PDF FileV3.1 November 2016
The Method Guide provides information required to conduct activities using this method of the ESS Rule. This version includes additional technical guidance.

Amendments to the ESS Rule took effect on 28 April 2017. The PIAM&V Method Guide is currently being updated to reflect these amendments and will be published shortly.

On 25 May 2017 the Scheme Administrator published information on acceptable approaches for the use of the PIAM&V Method, as follows:

  • documentation that must be developed and retained as a record for all implementations
  • approaches for the use of the sampling method (clause 7A.20 of the ESS Rule
  • approaches for the use of the computer simulation energy model type

Refer to the ESS Fact Sheet – Amendments to the PIAM&V Method for more information. These requirements apply from 25 May 2017 and will be included in the updated version of the PIAM&V Method Guide.

Template Nomination Form

The Energy Savings Scheme Rule of 2009 allows an original energy saver to nominate an Accredited Certificate Provider as the energy saver in relation to the implementation of a recognised energy saving activity at a particular site. Such a nomination must be in the form and manner approved by the Scheme Administrator. Templates for nomination forms can be found on the Templates page.

Measurement and Verification Professionals

Under clause 7A of the ESS Rule, M&V Professionals used by Accredited Certificate Providers to validate PIAM&V energy models must be approved by IPART.

To submit an application, a completed M&V Professional Application Form and any supporting information should be emailed to:

M&V Professionals may be approved in relation to specific implementations of a recognised energy saving activity, or have ‘general’ approval to operate as an M&V Professional for various Accredited Certificate Providers.  Details of people with general M&V Professional approval can be found here.

PIAM&V: Guide for M&V Professionals260.45KB PDF FileV1.2 November 2016
This guide provides information about how to apply to be approved as a Measurement & Verification Professional for the PIAM&V method.

PIAM&V: Application Form - M&V Professional282.01KB Word DocumentV1.3 January 2017
This form is to be completed by persons wishing to apply to be approved as a Measurement and Verification Professional for the PIAM&V Method.

PIAM&V: Template - M&V Professional Report258.91KB Word DocumentV1.0 September 2016
This template may be used by ACPs and M&V Professionals to document the explanatory reasoning.

Calculating Energy Savings

A PIAM&V tool and guide has been developed by the Office of Environment and Heritage (external link). The Tool is especially useful as it is structured in a way that matches the requirements of this complex method. Use of the Tool is recommended, but is not mandatory.

IPART will check the inputs, calculations and supporting evidence when the Tool is submitted, as part of an application for accreditation. The energy savings output from the Tool will ultimately be verified at audit.

You should refer to clause 7A and the associated tables of the ESS Rule to ensure that you understand how to calculate energy savings using the PIAM&V method.