Energy Monitoring of the Building

1. Generic Principle Diagram

In order to monitor all energy and water flows of a building, the meters indicated in the diagram below must be provided:

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2. Principle Diagram with Climkit Equipment

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Technical Description

The indications below should be included as part of a call for tenders or during project planning.

1. Electricity Monitoring:

  • Main Meter: Electricity distribution is based on the model of grouping within the framework of self-consumption (RCP). Therefore, there is an official metering point at the building entrance equipped with its meter from the distribution system operator (DSO). A private meter is installed downstream of this to measure the energy drawn and fed back.
  • Individual Meters: Each apartment, shop, office, common areas, and other equipment such as lighting, heat pumps, 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 output of the photovoltaic (PV) inverter to measure the production of each PV installation. Note: If the total power of the installations exceeds 30 kVA, a DSO meter must also be installed on each output.
  • Characteristics of Private Meters: The private meters used must be of the DIN rail type, certified MID, and operate with the Modbus communication protocol via an RS485 data bus (product code: 30). For installations exceeding 80A, use indirect meters with current transformers (TI) sized according to the amperage of the outgoing line 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 an 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 a 5m or 10m extension if necessary (product code: 102010).
  • Installation and Identification of Meters: The meters are installed according to the manufacturer's specifications. Particular attention is required for indirect meters to ensure their correct operation. The meters are configured with a unique Modbus primary address (1 to 254). Provide a simplified metering diagram, inclusion of the meters on the Climkit portal, and precise labeling identifying each meter according to the measured entities (apartment numbers, identification of common areas, etc.) to facilitate management and billing.

2. Thermal and Water Monitoring:

  • Individual Consumption Measurement: All consumers (apartments, shops, offices…) are equipped with their own individual meters to measure their heating consumption, domestic hot water (DHW) usage, and cold water (CW) usage, and possibly cooling. Supplies of DHW and CW for common areas (such as laundry rooms, irrigation, etc.) are also equipped with meters.
  • Heat Meter at Heat Pump Outlet: Install a heat meter at the outlet of the heat pump (HP) to measure the total thermal energy produced. Note: If the HP has high and low-temperature outputs, install a meter on each output.
  • Heat Meter at DHW Tank Inlet: Install a heat meter at the inlet of the domestic hot water tank to measure the energy used for DHW production.
  • Cold Water Meter: A cold water meter must be installed on the building's water supply, downstream of the official meter from the supplier (local industrial services).
  • Technical Characteristics of Heat and Water Meters: The meters must be certified MID and equipped with a wired M-Bus communication module.
  • Meter Communication: The M-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 central unit.
  • Internet Connection: See Electricity Monitoring above
  • Installation and Identification: The meters must be commissioned by their supplier. Commissioning protocols identifying each meter according to the measured entities (apartment numbers, identification of common areas, etc.) will be provided to the project owner and Climkit for integration on the Climkit portal and configuration of meter reading via the Climkit gateway.

How Did We Do?

Optimization of self-consumption

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