Climate change

The indicator provides a representation of the trend of the average monthly temperatures recorded in the provincial capital city / region during 2021, compared with that of the average monthly temperatures calculated for the same locations over the thirty-year period 1961-1990. During 2021 there was a general increase in average monthly temperatures compared to the reference period, with exceedances of the reference values on average for 8 months and in particular in the summer and winter months. It is mainly the cities of the North where the temperature increases assume significant values in species in the months of February and December. It should be noted that in the months of April and October the temperature values, in most of the capitals, were on average lower than in the reference period.

The indicator measures the primary energy, expressed in MJ, required to produce one kWh of electricity, or more precisely, it reflects the efficiency of converting primary energy from fossil fuel sources into electricity for final consumption. Available data highlight a reduction in specific energy consumption related to electricity production of 18.4% for gross production and 20% for net production between 1996 and 2022. The long-term trend of the indicator therefore shows an improvement in the electricity generation efficiency of the thermoelectric power plants.

The efficiency indicator, calculated for the years from 1990 to 2020, represents carbon dioxide emissions per unit of value added in the manufacturing and construction sectors in Italy. The substantial reduction in emission intensity over the years (-48% between 1990 and 2020) indicates an improvement in the level of efficiency achieved by the Italian manufacturing and construction industry.

The carbon dioxide (CO₂) emission intensity related to energy use in the Italian chemical industry is analysed in relation to the sector's value added. In 2020, the indicator increased by 1.7% compared to 2019, although it decreased by 61.5% relative to 1990. The data, covering the period 1990–2020, are reported annually to the European Commission as part of the greenhouse gas emission monitoring mechanism and in implementation of the Kyoto Protocol.

The carbon dioxide (CO₂) emission intensity related to energy use in the non-metallic mineral processing industry in Italy is presented here, analyzed with reference both to the sector’s value added and to cement production. CO₂ emissions from energy processes in this industry decreased in absolute terms by 50.8% from 1990 to 2020. Over the same period, emission intensity per million euros of value added fell by 27.5%. These indicators, developed for the 1990–2020 period, are reported annually to the European Commission as part of the EU’s greenhouse gas emissions monitoring mechanism and for the implementation of the Kyoto Protocol during commitment periods.

This section presents the carbon dioxide (CO₂) emission intensity related to energy use in the paper and printing industry in Italy, analyzed both in relation to value added and to production volume. In 2020, compared to the previous year, emission intensity per unit of production decreased by 2.2%, while intensity per unit of value added increased by 2.7%. In terms of long-term trends since 1990, the indicator—calculated both by value added and production—shows a general increase. This indicator, covering the period 1990–2020, is reported annually to the European Commission as part of the EU greenhouse gas emissions monitoring mechanism and the implementation of the Kyoto Protocol.

This section presents the carbon dioxide emission intensity in the steel industry in Italy, analyzed with respect to both the sector's value added and steel production. Over the period from 1990 to 2020, a decrease of 74.3% in value added and 60.4% in steel production is recorded. These indicators, developed for the period 1990-2020, are communicated annually to the European Commission as part of the Community's greenhouse gas monitoring mechanism and for the implementation of the Kyoto Protocol during the commitment periods. CO2 emissions from the steel industry decreased by 68.3% from 1990 to 2020. In 2020, emissions decreased by 18.55% compared to the previous year.

Regional Climate Change Adaptation Strategies and Plans are the primary tools available to regional authorities to address the impacts of climate change and implement actions aimed at reducing territorial vulnerabilities. In Italy, the number of adopted regional strategies and plans remains very limited. Despite the absence of a binding regulatory framework and a national programmatic reference context, there are ongoing initiatives, projects, and climate vulnerability studies that are expected to lead toward the formal adoption of first Adaptation Strategies and subsequently Climate Change Adaptation Plans. The challenge posed by climate change urgently requires the definition and implementation of concrete actions to enhance territorial resilience.

Ostreopsis cf. ovata is a potentially toxic benthic microalga, currently present in most Italian coastal regions with blooms that can lead to human intoxication phenomena and toxic effects on benthic marine organisms (states of distress or mortality). The continuous expansion along the Italian coasts of Ostreopsis cf. ovata, of its blooms and the associated health, environmental and economic issues, has led to the establishment of a monitoring surveillance program of the microalga starting from 2007. This activity is carried out annually in the summer season by the Regional Environmental Agencies (ARPA). The data so far provided by the ARPA, collected and processed by ISPRA, have clarified the distribution and trend of blooms at national and regional level. To date, the microalga has been detected at least once in the monitoring campaigns carried out so far in 12 out of 15 coastal regions. In 2023, Ostreopsis cf. ovata is present in 12 coastal regions, that is in 145/221 stations (68.7%), while it is absent in all samples taken along the coasts of Emilia-Romagna, Molise and Veneto.

The indicator describes the amount and distribution of total precipitation in Italy. In 2023, the annual cumulative precipitation in Italy was approximately 4% lower than the average value calculated over the 1991–2020 reference period.

The indicator illustrates electricity consumption in the tourism sector, identified by the ATECO category "Accommodation and Food Service Activities". In 2023, this sector accounted for 4.2% of total electricity consumption in Italy. When considering only accommodation activities—such as hotels, campsites, and other short-term lodging facilities—this share drops to 1.5%. In 2023, within the "accommodation" subcategory, 83.8% of electricity consumption was attributable to "hotels and similar establishments".

In 2022, the contribution of cogeneration plants to total electricity production amounted to 37.1%, while the share of cogeneration in gross thermoelectric generation reached 53.1%.

The indicator illustrates the national economy’s dependence on imports of various energy sources to meet its energy requirements. A reduction in the share of oil and an increase in the share of renewable energy sources contribute to a decrease in national energy dependency. Since 2007, a downward trend has been observed, with energy dependency falling from a peak of 85.5% in 2006 to a low of 75.1% in 2020. In 2021, the dependency rate rose to 76.9%, and continued to increase in 2022, reaching 78.7%.

An economic system operates through energy inputs. The total energy consumption of resident units indicates the amount of energy used by economic activities and households for production and consumption activities, distinguishing energy uses from non-energy uses.

In 2021, the total energy consumption in Italy amounted to 7.05 exajoules, a 17.1% reduction compared to 2008. The total consumption is almost entirely for energy uses. In 2021, over two-thirds of the total energy use is attributable to productive activities. Among these, the top six activities for energy use (slightly more than half of total use) contribute to nearly 7% of Italy's Gross Domestic Product. 31% of the total energy use is due to household consumption (mainly heating/cooling and transport).

ISPRA also estimates the internal energy footprint, which allows the analysis of energy uses from the perspective of final domestic demand, highlighting the direct and indirect energy amounts embedded in the goods and services offered on the domestic market by Italian production chains.

The phenomenon of forest fires analyzed based on data collected from 1970 to 2023 by the State Forestry Corps, now CUFA (Carabinieri Forestry, Environmental and Agri-food Unit Command), shows a fluctuating trend, with peak years (1993, 2007, 2017, 2021) alternating with years of decline (2013, 2014, 2018). The presence of fires within Protected Areas is high, with exceptionally large burned areas recorded in certain years, such as 2021 and 2022, when 26,507 hectares and 11,101 hectares were affected by fire, respectively.

The incidence of intentional fires is very high, accounting for approximately half of all recorded events and exceeding 60% in some years (2012, 2014, 2015, 2016, 2020).

The indicator measures the energy consumed by end users and the total energy consumed by the country. Since 1990, there has been a general upward trend in the energy available for final consumption, reaching a peak in 2005. This was followed by a reversal, with consumption declining to a minimum in 2014. From then until 2018, a recovery in final consumption was observed, followed by a decrease in 2019 and a sharp drop in 2020 due to the lockdown of economic activities aimed at containing the spread of the SARS-CoV-2 pandemic. Consumption then rebounded in 2021, before declining again in 2022. In 2022, the energy available for final consumption—calculated according to the methodology adopted by Eurostat—amounted to 112.0 Mtoe, a 6.9% decrease compared to 2021.

Final electricity consumption grew steadily from 1990 to 2008, then declined due to the economic crisis. From 2015, consumption resumed growth until stabilizing in 2017. Following the SARS-CoV-2 pandemic, 2020 consumption dropped by 5.7% compared to the previous year, with a rebound of 6.2% in 2021. In 2022, consumption decreased by 1.8% compared to 2021, settling at 24.7 Mtep (million tonnes of oil equivalent). The industrial sector's share of consumption fell from 51.7% in 1990 to 38.9% in 2022, while the civil sector (residential and tertiary) increased from 43.2% to 55.6%. The agriculture and fisheries sector remained nearly constant at around 2%, and the transport sector, despite fluctuations, stayed stable at 3.1%.

In 2023, Italy experienced one of the hottest years in the last 150 years, second only to 2022. The average and maximum temperatures reached new records with October recording temperatures more than 3°C higher than the 1991-2021 average, marking the highest value since 1961. During the summer, intense heatwaves affected the country, with record temperatures of 48.2°C recorded on July 24 in Jerzu and Lotzorai in Sardinia, and 41.2°C in Rome in early August. Drought continued to be a significant problem, with Northern and Central Italy experiencing severe drought conditions in the first four months of the year, which later eased. However, in the last three months of the year, Sicily and parts of Ionian Calabria suffered from extreme drought with a significant precipitation deficit.
Extreme weather events affected several regions, causing severe damage. In May, Emilia-Romagna was devastated by two exceptional rainfall events, leading to flooding, landslides, and 17 fatalities. On November 2, heavy thunderstorms in Tuscany caused flooding and 8 deaths, with exceptional rainfall recorded in the provinces of Pisa, Livorno, Pistoia, and Prato.
In summary, 2023 was characterized by record temperatures, persistent drought, and extreme weather events that had a significant impact on various italian regions.

The indicator provides an assessment of the trend of water volumes measured in bedside sections of some of the main Italian watercourses compared to the year and the previous decade. For 2021 it was possible to represent the data of scope for 6 sections of closure of as many waterways of national importance (Po, Arno, Adige, Bacchiglione, Serchio and Tiber). In 2021, the annual volumes drained in the measurement sections showed significant increases compared to 2020, with increases of between 6% and 25%, with the exception of the sections on the Adige and the Po.

The indicator evaluates the demand for freight transport (also in relation to economic growth) and the evolution over time of modal split. The transport demand is increasingly met by road freight transport, which continues to dominate other transport modes in terms of growth and modal share (approximately 62% in 2023).

This indicator describes trends in cold extremes across Italy, specifically quantifying the number of frost days, defined as days with daily minimum air temperature less than or equal to 0°C. In 2023, a reduction of approximately 10 frost days was observed compared to the 1991–2020 climatological baseline.

The indicator is calculated for a limited sample of Alpine glaciers and represents the algebraic sum of ice mass gained through snowfall accumulation and mass lost through melting during the ablation period. Glacier mass balance data provide a fundamental measure for assessing the "health status" of glaciers.

Analysis of data from 1995 to 2023 shows that, for the glaciers considered collectively, the cumulative mass balance exhibits significant losses, ranging from nearly 25 meters water equivalent for the Basòdino glacier to over 50 meters water equivalent for the Caresèr glacier, corresponding to an average annual mass loss exceeding one meter water equivalent.

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 25.1% from 1990 to 2022.

The indicator represents, over the period 1990-2022, the trend of greenhouse gas emissions in Italy per capita and relative to GDP. A decrease is observed for both, accentuated by the growth of the population and GDP, which highlights a decoupling between drivers and pressures.

The indicator represents the historical series of national greenhouse gas emissions from 1990 to 2022, broken down by sector. The data analysis shows a significant reduction in emissions in 2022 compared to 1990 (-21%), which can be explained by the economic recession that has slowed consumption in recent years, as well as by an increased use of renewable energy, leading to a reduction in CO2 emissions from the energy sector (-20% compared to 1990).

The indicator represents projections of national greenhouse gas emissions up to 2040, based on the current policies scenario as of 31/12/2022, including those implemented under the National Recovery and Resilience Plan (NRRP), as well as the additional policies and measures scenario defined in the Integrated National Energy and Climate Plan (INECP). The scenarios are calculated starting from the most recent consolidated historical data for 2022, and reflect the expected evolution of key macroeconomic drivers as reported to the European Commission. The projected reductions in total greenhouse gas emissions (including LULUCF) by 2030, compared to 1990 levels, are estimated at -38% under the current policies scenario and -49% under the additional measures scenario.

The indicator describes greenhouse gas (GHG) emissions (CH₄, N₂O, CO₂) released into the atmosphere by the agricultural sector, mainly due to livestock management and fertilizer use. It allows for the assessment of the sector’s contribution to total national emissions and the achievement of emission reduction targets.

Since 1990, greenhouse gas emissions from the agricultural sector have shown a decreasing trend; however, further mitigation measures will be necessary to meet the targets established under the United Nations Framework Convention on Climate Change (UNFCCC), the Kyoto Protocol, and relevant European directives.

Specifically, Italy’s target for 2030 under the Effort Sharing Regulation (Regulation (EU) 2023/857) is a -43.7% reduction in total GHG emissions from agriculture, buildings, transport, waste, and industrial installations not covered by the EU Emissions Trading System (EU-ETS), compared to 2005 levels.

In 2022, GHG emissions from agriculture accounted for a relatively small share (11.2%) of total emissions from sectors covered by the Effort Sharing Regulation, while emissions from agriculture decreased by 12.2% compared to 2005.

The indicator evaluates the trend of greenhouse gas emissions from energy processes across different sectors, with the aim of reducing the impact of energy use on climate change. Greenhouse gas emissions from energy processes between 1990 and 2022 decreased by 20.7%, with varying trends across sectors. Emissions from the residential sector decreased by 7.5% compared to 1990, while emissions from transport increased by 6.7%. Over the same period, emissions from the energy industries sector decreased by 34.2%, and emissions from manufacturing industries showed a reduction of 40.6%. In 2021 and 2022, the end of the pandemic and the economic recovery led to an increase in greenhouse gas emissions from energy processes compared to 2020.

The indicator assesses greenhouse gas emissions from the transport sector to monitor progress towards national and international targets. In 2022, transport accounted for 26.6% of total greenhouse gas emissions in Italy. Between 1990 and 2019, transport emissions (excluding international transport/bunkers) increased by 4.1%. In 2020, a sharp decline (-18.6% compared to 2019) was observed, mainly due to mobility restrictions linked to the COVID-19 pandemic. Subsequently, emissions increased by 18.9% from 2020 to 2021. In 2022, a further estimated increase of 6.7% brought emissions back to pre-pandemic levels. Overall, emissions from the transport sector rose by 7.4% from 1990 to 2022. The national transport system faces multiple critical issues and remains far from achieving the ambitious 2030 and 2050 EU climate targets.

The indicator includes the emission allowances generated by installations covered by the EU Emissions Trading System (EU ETS), established under Directive 2003/87/EC, and the greenhouse gas emissions from all sectors not included in the ETS scope—namely small- and medium-scale industry, transport, residential and commercial buildings, agriculture, and waste. These are regulated under Decision No. 406/2009/EC (Effort Sharing Decision, ESD) up to 2020, and by the Effort Sharing Regulation (EU) 2018/842 (ESR) from 2021 onward. While non-ETS sector emissions in 2020 remained below the target threshold of 37 MtCO₂eq, in 2022 they exceeded the allowable limit by 5.5 MtCO₂eq, indicating a deviation from the reduction trajectory required to meet ESR targets.

The analysis of the contribution of different primary energy sources to gross inland energy consumption shows that the dominant role of petroleum products is declining, while natural gas (37.9% of the total in 2022) and renewable sources (19.0% of the total in 2022) are increasing. Greater diversification and the growing role of renewables have a positive impact on Italy’s energy self-sufficiency level, which remains among the lowest in industrialized countries.

The indicator provides an overview of the health status of common migratory passerine bird populations in Europe by assessing their resilience to climate change. Rising spring temperatures due to global warming trigger an earlier onset of vegetation growth which in turn leads to, an earlier peak in insect availability. If migratory birds do not adjust their arrival at breeding sites accordingly, they may struggle to find sufficient prey to feed their chicks. A failure to anticipate migration timing translates into lower resilience to climate change, ultimately threatening population survival.

This study examines the temporal variation in the arrival dates of migratory passerines at stopover sites used after crossing the Sahara and the Mediterranean Sea during their spring migration from Africa to European breeding grounds. Based on the analysis of migration timing for 10 bird species recorded at 26 ringing stations participating in ISPRA’s Piccole Isole Project over a 36-year period (1988–2023), the study found that 40% of the species exhibitmigration shifts that are too slow (advancing by only about one day every seven or more years) to effectively counteract the impacts of climate change. 

The indicator describes the trend of intense heat events in Italy. A heat wave is defined as an event lasting at least 6 consecutive days during which the maximum temperature exceeds the 90th percentile of the daily maximum temperature distribution for the same period of the year over the 30-year climatological reference period. The indicator counts the number of days characterized by such heat waves in a given year. In 2023, an increase of approximately 29 heat wave days was observed compared to the average value calculated over the reference 30-year period (1991–2020).

This indicator measures the health impact of heatwaves on the elderly population (aged 65 and over) across 27 Italian cities included in the National Heatwave Health Prevention and Warning Plan. The plan is implemented by the National Centre for Disease Prevention and Control (CCM) of the Ministry of Health and coordinated by the Epidemiology Department of the Lazio Regional Health Service (DEP Lazio). The cities are equipped with Heat Health Watch Warning (HHWW) systems to provide forecasts and alerts.

The summer of 2023 (15 May – 15 September) was characterized by temperatures above the seasonal reference average. Despite these elevated temperatures, observed mortality in the elderly population remained generally within expected levels. Monthly impact assessments highlighted increases in mortality rates associated with heatwave episodes during July and August in several monitored urban areas.

This indicator provides critical information for monitoring climate-related health risks and supports adaptation strategies aimed at reducing adverse health effects of heatwaves on vulnerable population groups.

The indicator provides information about the major landslide events caused fatalities, injuries, evacuations, damage to buildings, cultural heritage, and primary linear communication infrastructure or service networks in the national territory in the past year. The major landslide events occurred in 2023 were 192, with 11 deaths, 24 injuries, and damage mainly to the road network and buildings.

The indicator describes the trend of mean temperature in Italy.
The increase in mean temperature recorded in Italy over the last thirty years has often exceeded the global average over land. In 2023, the mean temperature anomaly in Italy, relative to the 1991–2020 climatological baseline, was +1.14 °C—higher than the global land surface anomaly of +0.86 °C. In Italy, 2023 ranked as the second warmest year in the entire annual time series starting from 1961. Since 2000, temperature anomalies relative to the 1991–2020 baseline have consistently been positive, except for four years (2004, 2005, 2010, and 2013).

Ocean warming is causing a geographical and depth shift in marine species more sensitive to temperature changes. In temperate zones, such as the Mediterranean, this phenomenon results in a northward expansion of warm-affinity species. Consequently, the composition of marine communities changes, affecting commercial fishery landings.

The mean temperature of the catch (MTC), which is the average inferred temperature preference of the exploited species weighted by their annual landings, is an index that has been used for evaluating the effect of sea warming on fisheries catches and marine ecosystems (Cheung et al., 2013).

Adriatic Sea (FAO Division 37.2.1): The mean temperature of the catch increased from 19.2°C (1987–1996 average) to 20.1°C (2012–2022 average), with a significant annual increase of 0.03°C.

Ionian Sea – Central Mediterranean (FAO Division 37.2.2): The mean temperature of the catch increased from 20.3°C (1987–1996 average) to 22.3°C (2012–2022 average), with a significant annual increase of 0.07°C.

Sardinian Sea – Western Mediterranean (FAO Division 37.1.3): The mean temperature of the catch increased from 20.5°C (1987–1996 average) to 22.5°C (2012–2022 average), with a significant annual increase of 0.07°C.

The indicator provides an estimate of the input and removal of nitrogen and phosphorus in coastal environments where aquaculture activities take place. Specifically, fish farming contributes to the release of these nutrients, while mussel farming facilitates their removal.

The balance between the nutrient input from farmed fish and the nutrient removal by bivalve shellfish allows for a regional-level assessment of the net quantitative contribution of aquaculture to trophic processes along the Italian coastline.

At the national level, in 2020, estimates of the nitrogen and phosphorus balance from intensive fish farming and mussel farming showed a reduction compared to 2019. This decrease was due to:

• A decline in nutrient input resulting from lower fish production

• A decrease in nutrient removal due to the reduction in mussel production

  At the regional level, in Veneto, Emilia-Romagna, Abruzzo, Molise, and Marche, the removal of nitrogen and phosphorus by mussels exceeded the input from farmed fish.

The indicator measures passenger transport demand (according to different modes) and compares its trend with that of economic growth and population. Transport demand is increasingly met by individual road transport (passenger cars and motorcycles), which, due to its growth and modal share (approximately 81% in 2023), remains dominant compared to other transport modes.

In 2022, 1.1 million tons of special waste were sent for incineration, of which approximately 699,000 tons (63% of the total) were non-hazardous and over 409,000 tons (37% of the total) were hazardous. The total number of plants that received special waste is 70, 27 of which are primarily authorized for the treatment of municipal waste. The majority of these plants are located in the North (43), with 7 in the Center and 20 in the South. In line with the distribution of the incineration plant fleet, the majority of special waste is treated in plants located in the North (83.9% of the total, over 929,000 tons), followed by the Southern regions with 13.8% (over 153,000 tons) and the Central regions with 2.3% (25,000 tons). 

The indicator measures the quantity of special waste treated in production plants across the country, used either partially or entirely as a substitute for traditional fuels. In 2022, more than 1.8 million tons of special waste were recovered in co-incineration plants. Compared to 2021, the quantities of energy recovered are substantially stable, showing a slight decrease of about 1,000 tons (-0.1%). The regional distribution shows that the majority of special waste, 75.4% of the total, is recovered in the Northern regions, followed by the Central regions with 12.8% and the Southern regions with 11.8%. 

The ratio of final energy consumption to total energy consumption measures the overall efficiency of converting energy from primary sources. The difference between these two values corresponds to losses in conversion processes (such as electricity generation and oil refining), internal consumption of power plants, and distribution losses. From 1990 to 2022, the average ratio in our country (70.6%) has been higher than the European average (62.6%). In recent years, a significant increase in the ratio has been observed.

In 2020, the share of energy from renewable sources in Italy reached 20.4% of gross final energy consumption, exceeding the national target of 17% set for 2020. In 2021, the share decreased to 18.9%, and in 2022 it slightly rose to 19.1%, recording an increase of 0.2 percentage points compared to the previous year.

The indicator describes the trend in extreme heat events in Italy, specifically representing the number of days with a maximum daily air temperature exceeding 25 °C. In 2023, an increase of approximately 19 summer days was observed compared to the climatological average for the 1991–2020 reference period.

Comparison within the European Union highlights that Italy's primary and final energy intensity remains below the European average. This is largely due to historical lack of domestic primary energy sources, —which has fostered energy-saving behaviours, efficient infrastructure, and a relatively low energy-intensive production structure—as well as a high level of energy taxation (which has raised end-user energy prices above those in other countries), lower per capita income, and a relatively mild climate. Based on a ranking of countries by increasing primary energy intensity, Italy ranks 7th among European nations.

This indicator concerns atmospheric emissions of greenhouse gases (GHGs) that influence climate balance. In 2022, energy processes accounted for: 95.8% of carbon dioxide (CO₂) emissions, 14.1% of methane (CH₄) emissions, 25.6% of nitrous oxide (N₂O) emissions. Energy processes did not contribute to fluorinated gas emissions. Overall, energy-related activities contributed to 81.8% of total GHG emissions. From 1995 to 2022, GHG emissions from energy processes closely mirrored energy consumption trends until 2004. Afterward, a decoupling emerged, becoming more pronounced in recent years due to: GDP contraction, replacement of high-carbon fuels with natural gas, increased renewable energy share in electricity generation and industry. In 2022, energy-related emissions rose by 1.7% compared with 2021.

The indicator describes the trend in extreme heat events in Italy, specifically representing the number of days with a minimum daily air temperature exceeding 20 °C. In 2023, an increase of approximately 14 tropical nights was observed compared to the climatological average for the 1991–2020 reference period.

The indicator describes the trend in extreme heat events in Italy, specifically representing the number of days with a daily maximum air temperature exceeding 35 °C. In 2023, an increase of approximately 7 extremely hot days was observed compared to the climatological average for the 1991–2020 reference period.

White Certificates, also known as “Energy Efficiency Titles” (EET) were introduced by Ministerial Decree of 24 April 2001 to promote the implementation of energy efficiency measures in end-use sectors to meet national energy savings targets for obligated parties. TEE are tradable securities that certify energy savings achieved in energy end-use through the implementation of specific interventions to increase energy efficiency. Each certificate represents a saving equivalent to one tonne of oil equivalent (toe). The White Certificates (WC) mechanism has been gradually modified over the years, in line with legislative developments. In the 2006-2023 period, additional primary energy savings equal to approximately 29.3 Mtoe were certified and 58.5 million energy efficiency certificates were recognised.