GREENHOUSE GAS EMISSION INTENSITY FROM ENERGY CONSUMPTION

Update date
Authors

Antonio Caputo

Abstract

The indicator is based on the ratio between atmospheric greenhouse gas emissions and final energy consumption by sector. The average value of emission intensities shows a difference between sectors related to the varying adoption of renewable sources. Overall, the emission intensity for final uses has decreased by 28.1% from 1990 to 2023.

Description

The indicator is based on the ratio between atmospheric greenhouse gas emissions and final energy consumption by sector.

Purpose

The indicator illustrates greenhouse gas emissions per unit of energy consumed and addresses the need to reduce the carbon content in final energy uses.

 
 
Policy relevance and utility for users
It is of national scope or applicable to environmental issues at the regional level but of national significance.
It is able to describe the trend without necessarily providing an evaluation of it.
It is simple and easy to interpret.
It is sensitive to changes occurring in the environment and/or human activities
It provides a representative overview of environmental conditions, environmental pressures, and societal responses.
It provides a basis for international comparisons
Analytical soundness
Be based on international standards and international consensus about its validity;
Be theoretically well founded in technical and scientific terms
Presents reliability and validity of measurement and data collection methods
Temporal comparability
Spatial comparability
Measurability (data)
Adequately documented and of known quality
Updated at regular intervals in accordance with reliable procedures
Readily available or made available at a reasonable cost/benefit ratio
An “adequate” spatial coverage
An “appropriate” temporal coverage
Main regulatory references and objectives

Although no binding limits are established by current legislation, the indicator falls within the framework defined by the so-called European Roadmap for “a competitive low-carbon economy in 2050” (Communication (2011)112), particularly with regard to energy efficiency aspects and the targets outlined in Communication (2011)109 “Energy Efficiency Plan 2011”.

DPSIR
Driving force
Response
Indicator type
Efficiency (C)
References

ISPRA, Atmospheric Emissions Inventory, https://emissioni.sina.isprambiente.it/inventario-nazionale/

MASE, National Energy Balance, various years, https://dgsaie.mise.gov.it/bilancio-energetico-nazionale 

 

Limitations

The relevance of the indicator decreases when moving from the national to the local level, due to the spatial heterogeneity in the distribution of energy production and consumption across the national territory.

Data source

ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development)
EUROSTAT (Statistical Office of the European Communities)
MSE (Ministry of Economic Development)
Terna – National Electricity Transmission Grid Operator S.p.A.

Data collection frequency
Yearly
Data availabilty

ISPRA, National Inventory Document 2024 – Italian Greenhouse Gas Inventory 1990-2022, https://emissioni.sina.isprambiente.it/inventario-nazionale/

MASE, National Energy Balance, various years, https://dgsaie.mise.gov.it/bilancio-energetico-nazionale 

Spatial coverage

National

Time coverage

1990-2023

Core SET
SDGs Indicators
SDG goals
Goal 7: Affordable and clean energy
Processing methodology

The indicator is developed by ISPRA based on emission data from energy-related processes estimated by ISPRA, and on sectoral energy consumption data collected by the Ministry of Economic Development. The sectoral energy consumption data are consistent with the emission data. Specifically, emissions from energy industries are attributed to the transformation sector, while emissions from the residential and tertiary sectors include emissions from agriculture and fisheries. Emission intensity is calculated as the ratio between emissions and energy consumption for the respective sectors. For the purpose of calculating this indicator, the total includes transformation sector consumption and excludes non-energy uses and bunkering. The indicator is developed at the national level.

Update frequency
Year
Data quality

The indicator is developed by ISPRA based on emission data from energy-related processes estimated by ISPRA, and on energy consumption data by economic sector collected by the Ministry of Economic Development. The sectoral energy consumption data are consistent with the emission estimates. The data are technically and scientifically robust, straightforward and easy to interpret, regularly updated, and provide a sound basis for international comparisons.

Status
Medium
Trend
Positive
State assessment/description

In 2023, the emission intensity was 2.25 tCO₂eq/toe (Table 1). Specifically: energy industries reported an emission intensity of 2.8 tCO₂eq/toe; the manufacturing industry recorded a value of 2.16 tCO₂eq/toe. The transport sector showed a value of 2.9 tCO₂eq/toe, while the civil sector, together with agriculture and fisheries, registered a value of 1.46 tCO₂eq/toe.

Trend assessment/description

Over the period considered (1990–2023), there is a clear and steady decline in total energy consumption, although emission intensity shows varying values and trends across different sectors (Table 1 and Figure 1). In particular, in 2023, energy industries recorded a 41.8% decrease in emission intensity compared to 1990, dropping from 4.82 tCO₂eq/toe to 2.80 tCO₂eq/toe. The manufacturing industry showed a 20.2% reduction. In the transport sector, the emission intensity was 2.90 tCO₂eq/toe, corresponding to a 8.2% decrease from 1990. The civil sector, together with agriculture and fisheries, registered a 30.4% reduction compared to 1990. Overall, the emission intensity for the considered energy consumption was 2.25 tCO₂eq/toe, representing a 28.1% decrease from 1990.

Comments

The average emission intensity values by sector show a marked difference, reflecting the varying penetration of renewable energy sources across sectors. All sectors exhibit a reduction in emission intensity; however, the transport sector shows the smallest decrease.

Data