Glossary
Phytodepuration
Closed cycle phytodepuration systems are installed at gas compressor stations for the comprehensive treatment of domestic wastewater produced onsite. These systems help to eliminate this type of discharge because wastewater is treated and completely absorbed by planted vegetation prior to the separation of solid sediments
Phytodepuration is a system that uses shrubs, plants and flowers instead of traditional purifying systems.
The effectiveness and functioning of the purification system essentially depends on the behaviour of the plants used. Plants have an elevated capacity to absorb and use certain elements, thus preventing the contamination of surface or subterranean water bodies; they also promote microorganisms in the soil that attack and destroy a good portion of organic pollutants.
To function properly plants need an environment that ensures adequate light, water, thermal insulation and the chemical elements needed for organic synthesis. Land is therefore an essential component of this environment as it supports and nourishes plants. In phytodepuration systems, natural habitats for cultivating plants are artificially reconstructed; pollutants are removed through complex biological and chemical-physical processes, an essential part of which is the synergy between plants and the microorganisms that flourish in their habitats.
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Amortisation and depreciation
The systematic allocation of the depreciable amount of an asset over its useful life. -
BAR
Unit of measurement for pressure
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Cash Flow
Cash and cash equivalents generated by an entity over a certain period of time. -
Cathode Protection
Method of protection against corrosion for pipelines -
Comprehensive income
Includes both net income for the period and changes in equity, which are recognised in equity in accordance with international accounting standards. -
Controllable fixed costs
Fixed operating costs of regulated activities. -
Core business revenue
Income from selling goods and/or providing services that are integral to the core business. -
Corporate Governance
Set of rules that monitor and direct the management and control of an entity. -
Derivatives
Financial instruments with a price/yield profile that derives from the price/yield parameters of other major instruments. -
Dividend
Payment to shareholders. -
Dividend payout
Ratio between the dividend and net profit for the period.
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EBIT
Difference, in a given period, between sales, services revenues, other revenue, operating costs, amortisation, depreciation and impairment losses. -
EBITDA
Used by Snam in its internal and external presentations. -
Energy efficiency
Energy efficiency policies -
Entry point (NN)
Each of the points or local group of physical points of the National Gas Pipeline Network at which gas is delivered by the User to the Transporter. -
Excise Duty
Indirect taxADDITIONAL LINKS
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Gas Day
Period of 24 consecutive hour -
Gas pipeline
Pipeline used for the transportation of natural gas -
Inch
Equal to 2.54 cm -
Injection phase
Period from 1 April to 31 October of the same year. -
Investments
Costs incurred for the acquisition of long-term assets where the useful life does not expire over one reporting period.
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Joule
Unit of energy.
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Liquefied Natural gas (LNG)
Natural gas, mainly consisting of liquefied cooled at - 161°C. -
Low environmental impact
Low environmental impact emissions -
Mining storage
Mining storage is necessary for technical and economic reasons in order to enable the optimum cultivation of Italy’s natural gas fields. -
Modulation storage
It aims to respond to changing hourly, daily and seasonal demands.
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National gas transportation Network (NPN)
The network comprises pipelines listed in article 2 of the Ministerial decree dated 22 December 2000 -
Natural Gas
Mixture of hydrocarbons, composed mainly of methane and with some small amounts of ethane, propane and higher hydrocarbons. -
Natural gas transportation network
The aggregate of gas pipelines, line plants, compression stations and infrastructure. -
Natural Transportation network
The pipelines, compression stations and other infrastructures -
Net financial debt
A valid indicator of the ability to meet financial obligations. -
Net financial expenses
A valid indicator of the ability to meet financial obligations. -
Net invested capital
Net investments made for operating reasons -
Net profit
EBIT minus the result from financial operations and income taxes. -
Network code
Set of rules -
Net working capital
Capital which is invested in short-term assets. -
Nominal Diamater (ND)
The ND is conventionally measured in mm -
Non-current Asset
Items in the balance sheet -
Operating Cost
Costs incurred to carry out the entity’s core business.
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Phytodepuration
Closed cycle phytodepuration systems fot the treatment of domestic wastewater at gas compressor stations
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Redelivery Point
Physical point or local group of physical points on the network. -
Regasification Code
Document which sets out the rules and processes characteristic of the natural gas regasification service. -
Regasification LNG
Industrial Process applied to LNG -
Regasification Tariffs
Unit prices applied for regasification. -
Regional transportation network (RTN)
Gas pipelines with the function to move and distribute gas in demarcated local areas. -
Regulatory Asset Base (RAB)
Value of net invested capital for regulatory purposes. -
Regulatory period of Natural gas storage
Period of time (usually four years). -
Regulatory period of Natural gas transportation and regasification
Period of time (usually four years). -
Regulatory time lag
The delay of tariff remuneration with respect to the investments made and started during the year. -
Sector coupling
The European Commission identifies sector coupling as a strategy that provides more flexibility to the energy system in order for decarbonisation to be achieved in the most cost-effective way (DG ENER (2018) Request for services no. ENER/B2/2018-260 - Potentials of sector coupling for the EU natural gas sector - Assessing regulatory barriers). -
Shareholders’ equity
Total resources contributed by shareholders, plus retained profits and minus losses. -
Standard Cubic Metre
Unit of measurement of volume (sm3) used for gas -
Strategic storage
Strategic storage aims to compensate for a lack of or reduction in imported supplies, or for crises in the gas system. -
Superior calorific power (SCP)
The quantity of energy produced by the complete combustion of a unit of natural gas under certain conditions
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Take or pay
Clause included in natural gas supply contracts, according to which the buyer is required to pay, either wholly or partially, the contractual price of a minimum quantity of gas shown in the contract, even in the case that it not take the gas -
Thermal year of Natural gas storage
Period of timeADDITIONAL LINKS -
Thermal year of Natural gas transportation and regasification
A period of timeADDITIONAL LINKS -
Transportation capacity
The maximum quantity of gas which can be injected into the system (or withdrawn from it) during the course of a gas day. -
Transportation Tariffs
Unit prices applied for transporting and dispatching natural gas. -
User
The user of the gas system.
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Virtual trading point (PSV)
Virtual point located between the entry and exit points of the national pipeline network -
Watt
Unit of energy. -
Withdrawal phase
Period from 1 November of one year to 31 March of the following year.
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05 August 2016 - 16:41 CEST