Introduction back to ToC
CELINE (Cross-sectorial integrated digital services Enabling energy Localized INnovation and community Empowerment) is a Horizon Europe research project (Grant Agreement No. 101160667) that develops a Digital Toolbox for households, energy communities and cooperative organisations to optimise energy management and support investment decisions around photovoltaic systems, battery storage, electric vehicles and heat pumps. The project validates its solutions across three European demonstration sites in Spain, Finland and Italy.
The CELINE Core Ontology supports the semantic layer of this toolbox. It is a thin orchestration profile -- not a standalone domain ontology -- that binds together existing standards into a coherent semantic target for the CELINE ecosystem:
- **PECO** (https://purl.org/peco) models the Energy Community structure, members, PODs and assets.
- **SAREF / SAREF4ENER** (ETSI) covers smart devices and energy assets.
- **SOSA/SSN** (W3C) covers sensor observations and measurements.
- **IEC CIM** (CIM100) provides the reference model for grid topology, aligned via skos:closeMatch.
Version 0.9 is a conformance fix and introduces no new terms:
- **CIM namespace**: The cim: prefix now binds to the IEC CIM100 namespace, http://iec.ch/TC57/CIM100#. It previously bound to https://ontology.tno.nl/IEC_CIM/ -- where TNO hosts a copy of CIM, not where CIM mints its terms -- so all seven skos:closeMatch alignments to CIM expanded to IRIs that do not exist. CIM is the one external vocabulary CELINE references on documentary rather than resolvable authority: IEC CIM is a paid standard and its namespace IRIs answer HTTP 403, so these alignments are checked against the published CIM100 class documentation.
- **GridOperator alignment**: celine:GridOperator moves from cim:Company, which exists in no CIM version, to cim:Organisation. Note cim:Operator is a control-room person, not the operating company.
Version 0.8 was a conformance fix and introduced no new terms:
- **SKOS top concepts**: The CommitmentMode, FlexibilityDirection, CostType and ConstraintType schemes now carry the skos:hasTopConcept assertions their SHACL shapes require. The concepts themselves already declared skos:inScheme and skos:topConceptOf, so only the scheme-side statement was missing. All four schemes are flat -- no skos:broader anywhere -- so every member is a top concept.
- **Language tags**: Labels, prefLabels, descriptions and comments in those four schemes gain the @en tag already used by the other nine.
Version 0.7 extended the ontology with:
- **hasDataset**: A new object property linking assets and connection points to external, self-describing datasources (DatasetReference). This is the operational counterpart to the SimulationRun-scoped usesDataset/producesDataset properties.
- **DatasetReference self-description**: Clarified that instances SHOULD declare conformance target (dct:conformsTo), format (dct:format), and access location (dcat:accessURL or dct:source) using DCAT/Dublin Core terms. DCAT prefix added (no owl:imports).
- **Implementation-neutral wording**: All references to specific external catalogue products have been replaced with generic wording ("an external catalogue") throughout the ontology.
Project website: https://www.celineproject.eu/
Source code and issues: https://github.com/celine-eu
Documentation: https://celine-eu.github.io/