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# Glossary

|                  |                                                                                                                                                        |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------|
| A-plan           | Aggregator-plan, used as Aggregator’s nomination                                                                                                       |
| AGR              | Aggregator. Role whose goal it is to maximize the value of flexibility, taking into account customer needs, economical optimization and grid capacity. |
| BRP              | Balance Responsible Party                                                                                                                              |
| C&I              | Commercial & Industry                                                                                                                                  |
| Common Reference | Information about the Energy grid and the involved parties, which needs to be unambiguously available to all participating parties.                    |
| Congestion Point | Point in de grid where the grid capacity is not always sufficient to distribute the requested amount of energy                                         |
| CRO              | Common Reference Operator                                                                                                                              |
| D-prognosis      | Prognosis regarding the Distribution of energy                                                                                                         |
| DNO              | Distribution Network Operator                                                                                                                          |
| DSO              | Distribution System Operator                                                                                                                           |
| E-program        | Energy Program – aggregated (daily) energy transactions of a BRP to be provided to the TSO                                                             |
| FlexOffer        | Flexibility Offer, response to a Flexibility Request or unsolicited                                                                                    |
| FlexOrder        | Flexibility Order, a response to a Flexibility Offer or direct                                                                                         |
| FlexRequest      | Flexibility Request                                                                                                                                    |
| Grid             | Network for the transport and distribution of energy                                                                                                   |
| ISP              | Imbalance Settlement Period                                                                                                                            |
| MBMA             | Measure Before Measure After (baseline methodology)                                                                                                    |
| MCM              | Market-based Coordination Mechanism (USEF)                                                                                                             |
| MDC              | Meter Data Company                                                                                                                                     |
| P&S              | Privacy & Security                                                                                                                                     |
| Prosumer         | A consumer which is capable of producing energy as well                                                                                                |
| Settlement       | Determining the energy production and consumption and used flexibility as preparation for the billing process.                                         |
| Supplier         | Has a contractual relationship with Prosumers to source, supply and invoice energy                                                                     |
| TSO              | Transmission System Operator                                                                                                                           |
| UFTP             | USEF Flex Trading Protocol                                                                                                                             |
| USEF             | Universal Smart Energy Framework                                                                                                                       |

