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The SEAS Trading ontology

The Seas Trading Ontology defines concepts and relations to describe ownership, trading, bilateral contracts and market licenses:

  • players own systems and trade commodities, which have a price;
  • bilateral electricity contracts are connections between electricity traders at which they exchange electricity;
  • electricity markets are connections between electricity traders at which they exchange electricity, using a market license;
  • electricity markets can be cleared, and balanced;
  • evaluations can have a traded volume validity context

Classes

AncillaryService

Label: Ancillary Service

IRI: https://w3id.org/seas/AncillaryService

Ancillary services are the specialty services and functions provided by the electric grid that facilitate and support the continuous flow of electricity so that supply will continually meet demand (source: Wikipedia).

These include black start capability (the ability to restart a grid following a blackout); frequency response (to maintain system frequency with automatic and very fast responses); fast reserve (which can provide additional energy when needed); the provision of reactive power and various other services. (source: Entso-e)

Balancing

Label: Balancing

IRI: https://w3id.org/seas/Balancing

Balancing refers to the procedure in which a Balance responsible party acts to ensure that demand is equal to supply after markets have closed, in and near real time (source: Entso-e).

BalancingExecution

Label: Balancing Execution

IRI: https://w3id.org/seas/BalancingExecution

The execution of some balancing procedure on a market.

Clearing

Label: Clearing

IRI: https://w3id.org/seas/Clearing

In economics, market clearing is the procedure by which, in an economic market, the supply of whatever is traded is equated to the demand, so that there is no leftover supply or demand (source: Wikipedia).

ClearingExecution

Label: Clearing Execution

IRI: https://w3id.org/seas/ClearingExecution

A procedure executed by some player. The execution of some clearing procedure on an electricity market.

Commodity

Label: Commodity

IRI: https://w3id.org/seas/Commodity

In economics, a commodity is a marketable item produced to satisfy wants or needs. Often the item is fungible. Economic commodities comprise goods and services (source: Wikipedia).

For instance, the electric energy outgoing of a certain connection point can be a commodity, and have a price:

[] seas:outgoingElectricEnergy  [
  a seas:ElectricEnergyProperty ;
  seas:price [ 
    a seas:Price ;
    seas:evaluation [ 
      a seas:Evaluation ;
      seas:evaluatedValue "200 €"^^xsd:ucum ;
      seas:hasTradedVolumeContext "12 €/MWh"^^xsd:ucum
    ]
  ]
]

ElectricityBilateralContract

Label: Electricity Bilateral Contract

IRI: https://w3id.org/seas/ElectricityBilateralContract

An electricity bilateral contract is both a connection between electricity players, and a contract. It only connects electricity traders.

It is linked to some player that validates each trade.

ElectricityMarketLicense

Label: Electricity Market License

IRI: https://w3id.org/seas/ElectricityMarketLicense

An Electricity Market License is a connection point between a player and a market.

Good

Label: Good

IRI: https://w3id.org/seas/Good

In economics, a good is a material that satisfies human wants and provides utility, for example, to a consumer making a purchase while getting an enough-satisfying product. A common distinction is made between ‘goods’ that are tangible property, and services, which are non-physical (source: Wikipedia).

LoadShifting

Label: Load Shifting

IRI: https://w3id.org/seas/LoadShifting

Load Shifting is the procedure of balancing the supply of electricity on the network with the electrical load by adjusting or controlling the load rather than the power station output. (source:Wikipedia) .

LoadShiftingExecution

Label: Load Shifting Execution

IRI: https://w3id.org/seas/LoadShiftingExecution

The execution of some Load Shifting procedure on a market.

NegativeLoadShifting

Label: Negative Load Shifting

IRI: https://w3id.org/seas/NegativeLoadShifting

Negative Load Shifting is a Load Shifting which occurs when the load is less than the initial request.

NegativeLoadShiftingExecution

Label: Negative Load Shifting Execution

IRI: https://w3id.org/seas/NegativeLoadShiftingExecution

The execution of some Negative Load Shifting procedure on a market.

PositiveLoadShifting

Label: Positive Load Shifting

IRI: https://w3id.org/seas/PositiveLoadShifting

Positive Load Shifting is a Load Shifting which occurs when the load is greater than the initial request.

PositiveLoadShiftingExecution

Label: Positive Load Shifting Execution

IRI: https://w3id.org/seas/PositiveLoadShiftingExecution

The execution of some Positive Load Shifting procedure on a market.

Service

Label: Service

IRI: https://w3id.org/seas/Service

In economics, a service is an economic activity where an immaterial exchange of value occurs. When a service such as labor is performed the buyer does not take exclusive ownership of that which is purchased, unless agreed upon by buyer and seller. The benefits of such a service, if priced, are held to be self-evident in the buyer’s willingness to pay for it (source: Wikipedia).

Object Properties

hasElectricityMarketLicense

Label: has electricity market license

IRI: https://w3id.org/seas/hasElectricityMarketLicense

Links an electricity player to its electricity market license.

hasTradedVolumeContext

Label: has traded volume context

IRI: https://w3id.org/seas/hasTradedVolumeContext

Links an evaluation to its traded volume validity context.

for instance .

<myConnectionPoint> seas:outgoingElectricEnergy <whatIGive> .

<whatIGive> seas:price <priceOfWhatIGive> .

<priceOfWhatIGive> seas:evaluation <evaluationOfThePriceOfWhatIGive> .

<evaluationOfThePriceOfWhatIGive> a seas:Evaluation ;
  seas:evaluatedValue "200 €"^^cdt:ucum ;
  seas:hasTradedVolumeContext "12 €/MWh"^^cdt:ucum .

This concept needs polishing … please ping me if necessary.

isOwnedBy

Label: is owned by

IRI: https://w3id.org/seas/isOwnedBy

Links a system to the one and only player that owns it.

isTradedBy

Label: is traded by

IRI: https://w3id.org/seas/isTradedBy

Links a commodity to the one and only player that trades it.

operatedBy

Label: operated by

IRI: https://w3id.org/seas/operatedBy

Links some connection to a player that regulates what’s happening through that connection.

owns

Label: owns

IRI: https://w3id.org/seas/owns

Links a player to a system it owns.

tax

Label: tax

IRI: https://w3id.org/seas/tax

Tax for the commodity, quantified as a percentage of something.

Functional sub properties of seas:tax must precise what that something is.

trades

Label: trades

IRI: https://w3id.org/seas/trades

Links a player to a commodity it trades.

tradesElectricityOn

Label: trades electricity on

IRI: https://w3id.org/seas/tradesElectricityOn

An Electricity Player can trade electricity on an Electricity Market.

For example,

<http://market.com/> a seas:ElectricityMarket .

<http://agregator.com> a seas:ElectricityTrader ;
  seas:tradesElectricityOn <http://market.com/> .

<http://otheragregator.com> a seas:ElectricityTrader ;
  seas:tradesElectricityOn <http://market.com/> .

These connections are qualified with class seas:ElectricityMarketLicense.

For example,

<http://agregator.com> seas:hasElectricityMarketLicense <http://market.com/license12> .
<http://otheragregator.com> seas:hasElectricityMarketLicense <http://market.com/license32> .

<http://market.com/> seas:connectsSystem <http://agregator.com> , <http://otheragregator.com> .
<http://market.com/> seas:connectsSystemAt <http://market.com/license12> , <http://market.com/license32> .

tradesElectricityWith

Label: trades electricity with

IRI: https://w3id.org/seas/tradesElectricityWith

An Electricity Player can trade electricity directly with another electricity player, through an electricity bilateral contract. They then exchange some of the commodities they trade.

These connections are qualified with class seas:ElectricityBilateralContract.

valueAddedTax

Label: value added tax

IRI: https://w3id.org/seas/valueAddedTax

A value-added tax (VAT), known in some countries as a goods and services tax (GST), is a type of general consumption tax that is collected incrementally, based on the value added, at each stage of production and is usually implemented as a destination-based tax, where the tax rate is based on the location of the customer (source: Wikipedia).

  The value added tax is quantified as a percentage of the nett price.