The funding phase of this EC co-funded project has finalised, however several tools continue to be used to good effect.

We wish to share these as well as several important points that we learnt throughout the project, click here for our Lessons Learned!


AMR: Automatic Meter Reading

AMR-systems are used for remote reading of energy meters at the prosumers. Depending on the intelligence in the remote meter such systems may also be used for various controls via the meter. DSOs in many European countries are in a process of exchanging existing manual read meters with AMR systems.

API: Application Programming Interface

A set of services exposed by a SW module and documented programmatically in order to enable programmers to access functionalities of the SW module itself without dealing with its internal details. GreenCom develops open API to be used both internally (i.e. to simplify extension and maintenance of the GreenCom platform) and externally (i.e. to facilitate integration with external stakeholders).

DG: Distributed Generation

Generation of electricity from small units located in different emplacements and connected to the low voltage grid. DG systems are accessible and controllable from the microgrid through their Gateways.

DS: Distributed Storage

Accumulation of electric energy in several autonomous storage units located in different emplacements.

DSO: Distribution System Operator

A stakeholder that manages and operates a network for energy distribution. It has the task to delivers electricity to end-users. The communication with DSO in GreenCom is made possible by exposing a specific interface from the MGA.

EV: Electrical Vehicle

A battery-powered vehicle which uses one or more electric motors for propulsion. Within GreenCom can be considered both as a load (when recharging) or an energy storage (when charged).

FW: Firmware

A fixed, usually rather small, program and/or data structures that is embedded in various electronic devices.

GUI: Graphical User Interface

A GUI is a type of user interface that allows users to interact with electronic devices with images rather than text commands.

GW: Gateway

A low-cost embedded PC, employed to bridge energy information produces by loads, storage and generating units with the MGM via a FAN segment.

HAN: Home Area Network

A network that connect smart objects (i.e. loads, storage and energy generation units) within the same spatially limited domain, typically employing low-cost, low-power communication technologies.

HW: Hardware

General term for (electronic) equipment that can be touched/held by hand.

IoT: Internet of Things

IoT refers to uniquely identifiable objects (things) and their virtual representations in an Internet-like structure. IoT can be defined as a global network infrastructure, linking physical and virtual objects through the exploitation of data capture and communication capabilities.

LinkSmart Middleware

A middleware developed within the Hydra EU project on Networked Embedded Systems, supporting inter-operation of heterogeneous physical devices in “Internet-of-Things” environments through service-oriented approaches.

M2M: Machine to Machine

Machine-to-machine (M2M) is a communication approach term that includes any technology that enables automated wired or wireless exchange of data between mechanical or electronic devices. Within GreenCom M2M communication approaches and standards are used to support inter-operation of loads, generation and storage units with GWs.


Small-scale versions of the centralized electricity distribution system. In GreenCom it includes local energy generation, energy storage, and loads monitored and controlled by a single MGM through gateways. In GreenCom a set of microgrids are managed by a single MGA that exchanges control signals and information from service provider, with many MGMs.

OO: Object-Oriented

OO is a programming paradigm using "objects" – data structures consisting of data fields and methods together with their interactions – to design applications and computer programs.

OWL: Web Ontology Language

Language for defining structured, Web-based ontologies. OWL is designed for use by applications that need to process the content of information instead of just presenting information to humans.

P2P: Peer-to-Peer

Computing or management approach where the workload is shared between a group of a cooperating entities, exchanging resources. 


A device or stakeholder which can act both as an energy consumer or producer of electricity/energy.

PVS: Photovoltaic System

A system that uses photovoltaic cells to directly convert sunlight into electricity. GreenCom considers primarily distributed PVS deployments, while massively concentrated deployments (i.e. solar farms), though still interesting for GreenCom, are covered in the large-scale Smart Grid domain.

RDF: Resource Description Framework

An XML type mark-up language, developed by the W3C to embed semantic information in web pages 

RES: Renewable Energy Source

An energy source that produce electricity from natural resources which can be naturally replenished such as sunlight, wind, rain, rivers, tides, geothermal heat, etc.

SAT: Site Acceptance Test

A test conducted at the installation site to determine if the requirements of a specification or contract are met.

SOA: Service oriented Architecture

SOA is a set of principles and methodologies for designing and developing software in the form of interoperable services. These services are well-defined business functionalities that are built as software components (discrete pieces of code and/or data structures) that can be reused for different purposes.

SOAP: Simple Object Access Protocol

SOAP is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks. It relies on Extensible Markup Language (XML) for its message format, and usually relies on other Application Layer protocols, most notably HTTP for message negotiation and transmission.

SW: Software

A conceptual entity which is a set of computer programs, procedures, and associated documentation concerned with the operation of a data processing system.

TSO: Transmission System Operator

An entity entrusted with the task of transporting energy in the form of electrical power (or gas) on a national or regional level, using a fixed infrastructure. GreenCom addresses communication with TSO systems by exposing a specific interface from the MGA.

UML: Unified Modelling Language

Standardized general-purpose modelling language in the field of object-oriented software engineering. The standard is managed, and was created, by the Object Management Group.

URI: Uniform Resource Identifier

The generic set of all names/addresses that are short strings that refer to resources (specified 1994; ratified as Internet Draft Standard 1998). Hyperlinks and ftp adresses are examples of URIs.

WSDL: Web Services Description Language

A formalistic way to describe interoperable web services.

WSN: Wireless Sensor Network

Low-rate, low power communication network allowing wireless connectivity among autonomous devices with limited computational and power resources; WSN are generally characterized by self-configuration and self-organization capabilities.

WTS: Wind Turbine Systems

A system that uses wind turbines to directly convert wind strength into electricity. GreenCom considers primarily distributed WTS deployments, while massively concentrated deployments (i.e. wind farms), though still interesting for GreenCom, are covered in the large-scale Smart Grid domain.