Energy monitoring of the building

Aleksia Stravinskaite Updated by Aleksia Stravinskaite

1. Generic Principle Diagram

In order to monitor all energy and water flows in a building, you must provide the meters indicated in the diagrams below:

2. Principle diagram with Climkit equipment

Technical description

The information below should be used as part of a call for tender or when planning a project.

1. Electricity monitoring:

  • Main meter: Electricity distribution is based on the own consumption grouping (RCP) model. There is therefore an official counting point at the entrance to the building equipped with its distribution network manager (GRD) meter. A private meter is installed downstream with the latter in order to measure the energy withdrawn and delivered.
  • Individual meters: Each apartment, shops, office, common areas and other equipment such as lighting, heat pump, parking lots, electric charging stations and ventilation are equipped with their own private electricity meter.
  • Photovoltaic installations: A private electricity meter must be installed on each photovoltaic (PV) inverter feeder to measure the production of each PV installation. NB: If the total power of the installations exceeds 30 kVA, a GRD meter must also be installed on each feeder.
  • Characteristics of private meters: The private meters used must be DIN rail type, MID certified, and operate with the Modbus communication protocol via an RS485 data bus (product code: 30). For installations over 80A, use indirect meters with current transformers (CT) sized according to the amperage of the feeder to be measured (product code: 34).
  • Meter communication: The RS485 bus connects each meter in series from the Climkit gateway (product code: 1), installed in the electrical panel near the meters.
  • Internet connection: A 4G router (product code: 106) is installed and connected to the Climkit gateway via RJ45 Ethernet cable. If the 4G signal is insufficient in the electrical room, plan to relocate the 4G antenna or install an outdoor IP65 antenna (product code: 102030), using if necessary a 5m or 10m extension (product code: 102010).
  • Installation and identification of meters: The meters are installed according to the manufacturer's instructions. Particular attention is required for indirect meters to ensure their correct operation. Counters are configured with a unique Modbus primary address (1 to 254). Provide a simplified counting scheme, insertion of meters on the Climkit portal as well as precise labeling identifying each meter according to the name of the entities measured (apartment numbers, identification of common areas, etc.), to facilitate management and billing.

2. Thermal and water monitoring:

  • Measurement of individual consumption: All consumers (apartments, stores, offices, etc.) are equipped with their own individual meters to measure their consumption of heating, domestic hot water (DHW) and domestic cold water (EFS) and possibly cold. The ECS and EFS supplies to the common areas (such as laundry rooms, watering systems, etc.) are also all equipped with meters.
  • Heat meter at the heat pump outlet: Install a heat meter at the heat pump outlet (PAC) to measure all the thermal energy produced. NB: If the heat pump has a high and low temperature outlet, install a meter on each outlet.
  • Heat meter at the inlet of the DHW tank: install a heat meter at the inlet of the domestic hot water tank to measure the energy used for the production of DHW.
  • Cold water meter: A cold water meter must be installed on the building's water supply, downstream of the supplier's official meter (community industrial services).
  • Technical characteristics of heat and water meters: The meters must be MID certified and equipped with a wired M-Bus communication module.
  • Meter communication : The M-Bus bus is connected to an M-Bus-RS485 converter (product code: 182), which is itself connected to the Climkit gateway, eliminating the need for an M-Bus control panel.
  • Internet connection : See Electricity monitoring above
  • Installation and identification: The meters must be put into service by their supplier. Commissioning protocols identifying each meter according to the name of the entities measured (apartment numbers, identification of common areas, etc.) will be given to the project owner and to Climkit for integration into the Climkit portal and configuration. reading meters via the Climkit gateway.

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Optimization of self-consumption