Measurement and Verification (M&V)

Measurement and Verification (M&V): what it is 

Measurement and Verification (M&V) is a structured process that makes it possible to quantify, in an objective and reproducible way, the energy savings achieved by an energy efficiency intervention. In essence, it answers a precise question: has the implemented intervention produced the expected results?

The method is based on comparing the energy consumption recorded before the intervention - the so-called baseline - with that measured afterwards, taking into account all variables that may influence consumption: climatic conditions, operating hours, production levels, and changes in space usage.

The international methodological reference is the IPMVP - International Performance Measurement and Verification Protocol - developed by EVO (Efficiency Valuation Organization) and recognised in over 40 countries. In Italy, its use has become an operational requirement within several public incentive schemes.

Why M&V is important 

Without independent verification of savings, any energy efficiency intervention remains an estimate. M&V transforms estimates into certified data, with concrete impacts on multiple levels: 

• Access to incentives: Energy Efficiency Certificates (TEE), Transition 5.0 tax credits, and other national schemes require savings to be documented through IPMVP-compliant M&V.
• Energy Performance Contracts (EPC): in contracts between ESCo and client, M&V is the tool that certifies the achievement of contractual targets and legitimises payment.
• Credibility with stakeholders: it provides objective and verifiable data to financial institutions, investors, public bodies, and commercial partners.
• Continuous optimisation: data collected during monitoring make it possible to identify residual inefficiencies and improve energy strategies over time.
• Financial risk management: it reduces uncertainty related to efficiency investments by providing a solid basis for return-on-investment evaluations.

M&V in the Italian regulatory context 

In Italy, M&V is explicitly referenced in several regulatory and incentive frameworks.

Energy Efficiency Certificates

The White Certificates scheme, managed by GSE and regulated by MiTE, recognises energy savings achieved through interventions on industrial plants, buildings, and networks. The quantification of savings—a necessary condition for issuing TEE - must follow standardised methods that largely overlap with IPMVP options. In particular, for measured projects (analytical sheets), IPMVP compliance is an explicit requirement. 

Transition 5.0 

The Transition 5.0 Plan - introduced by Law Decree 19/2024 and operational since 2024 - provides tax credits for investments in Industry 4.0 capital goods combined with a certified reduction in energy consumption.

The reduction must be documented through a sworn technical report certifying the actual savings achieved. IPMVP-compliant M&V is the most robust technical tool for producing this documentation in a defensible way.

Legislative Decree 102/2014 and energy audits

The transposition of Directive 2012/27/EU introduced the obligation for large enterprises and energy-intensive companies to carry out energy audits. M&V integrates with this requirement: while the audit identifies savings opportunities, M&V verifies that subsequent interventions have actually delivered the expected savings. 

IPMVP options: which one to choose? 

The IPMVP protocol defines four methodological options, differentiated by level of accuracy, complexity, and cost. The choice depends on the type of intervention, the magnitude of expected savings, and the requirements of the applicable incentive scheme. 

The four options, described in EVO documents and referenced in Italy by FIRE, are: 

• Option A - Retrofit Isolation: Key Parameter Measurement: focuses on measuring key parameters that influence savings (e.g. motor power), while other less relevant parameters may be estimated based on engineering analysis. It is ideal when savings are easily estimable and interaction with the building is minimal. 
• Option B - Retrofit Isolation: All Parameter Measurement: involves continuous or periodic measurement of all significant parameters related to the energy efficiency measure (EEM). It provides higher accuracy than Option A but requires higher monitoring costs. 
• Option C - Whole Facility: savings are determined by analysing consumption data of the entire building or site (energy bills or main meters). It is ideal for interventions involving multiple systems or where system interaction is significant, comparing post-intervention consumption with baseline consumption (weather-adjusted).
• Option D - Calibrated Simulation: uses energy simulation models of building behaviour, calibrated with measured consumption data. It is often applied when no historical consumption data exist, for example in new constructions or in cases of major interventions that significantly alter the pre-existing energy profile.

The following table summarises the main characteristics of each option to facilitate selection during the design phase of the M&V plan.

Who M&V is for 

The M&V process is useful whenever it is necessary to demonstrate - not just estimate - energy savings. The main target groups are: 

• Industrial companies and plant owners: to monitor and certify savings from efficiency measures, including for access to TEE or Transition 5.0.
• ESCOs (Energy Service Companies): to demonstrate achievement of contractual targets in EPC contracts.
• Public bodies and public administration: to assess the effectiveness of energy efficiency investments in public buildings and infrastructure.
• Financial institutions and investors: to evaluate risk and expected return of energy efficiency projects.
• Energy consultants and professionals: to provide IPMVP-compliant M&V services within professional assignments or broader projects.

How the M&V process works

A well-structured M&V plan consists of distinct phases, which must be defined before implementing the measures - not afterwards. 

1. Definition of the M&V plan 

Before any intervention, the objectives of the verification, system boundaries, parameters to be measured, and the most appropriate IPMVP option are defined. This phase is critical: decisions taken here determine the reliability and cost of the entire M&V activity. 

2. Definition of the baseline 

Pre-intervention energy consumption data are collected, together with relevant adjustment variables (degree days, operating hours, production levels, etc.). The quality of the baseline is the factor that most influences the reliability of calculated savings. 

3. Implementation of measures 

The energy efficiency intervention is carried out. During this phase, monitoring and measurement systems foreseen in the plan are installed if necessary. 

4. Post-intervention monitoring and data collection 

For a defined period (reporting period), actual consumption data and adjustment variables are collected. Duration and monitoring frequency depend on the selected IPMVP option. 

5. Savings calculation 

Savings are calculated as the difference between the consumption that would have occurred without the intervention (adjusted baseline) and the consumption actually measured during the reporting period. Adjusting the baseline according to influencing variables is the core technical element of the calculation. 

6. Independent verification 

A certified PMVA (Performance Measurement and Verification Analyst) - a role recognised by EVO - verifies the accuracy of calculations, compliance with the M&V plan, and adherence to the IPMVP protocol. The independence of the verifier is a fundamental requirement for incentive schemes. 

7. Reporting of results 

Results are presented in a structured M&V report, documenting methodology, data, calculations, and conclusions in a transparent and verifiable way. This document is the reference for accessing incentives and for contractual reporting. 

Certimac M&V services 

Certimac’s Energy Area includes certified PMVA professionals qualified to carry out M&V activities in compliance with the IPMVP protocol. The approach is based on technical independence, calibrated instrumentation, and continuous updates on Italian and European regulations. 

The support provided covers the entire lifecycle of an M&V project: 

• Definition of the M&V plan: before the intervention, Certimac supports the selection of the most appropriate IPMVP option, definition of system boundaries, and design of the monitoring plan, ensuring compliance with applicable incentive requirements (TEE, Transition 5.0, EPC).
• Baseline data collection and analysis: acquisition and validation of historical consumption data, identification and qualification of adjustment variables, development of the baseline model.
• Post-intervention monitoring: installation or supervision of measurement systems, data collection and validation during the reporting period.
• Savings calculation and verification: rigorous application of the selected IPMVP method, with documented calculation of energy and emission savings.
• M&V reporting: preparation of documentation compliant with GSE, MiTE, and other implementing bodies, directly usable for accessing incentives or contractual reporting.

Who we work with 

Certimac acts as a strategic partner for companies that want to turn their energy efficiency projects into concrete and measurable economic benefits, with an approach based on independence, expertise, and impartiality.

Discover all Certimac services for energy efficiency. 

Contact our experts to understand how M&V can turn your interventions into certified savings and tangible incentives.
Fill in the form at the bottom of the page or write to energia@certimac.it.