Energy Monitoring System (EMS) and Energy Measurement

Groups: 
  • Design-Build Contracts
Category: 
  • Energy
  • Environment
  • Buildings

Basic

Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Motive

Experience shows that buildings use more energy than theoretically calculated. This can be a challenge and drive up costs.

Argument

In order to achieve better correspondence between theoretical energy needs and actual energy consumption, buildings should be designed for good energy management. This means a building must have components and systems for analysing energy data and monitoring energy use during operation.

Secondary meters for recording the consumption of different equipment and areas/zones are an important tool for minimising energy consumption in a building. These make it easier to see how energy is used in the building and what can be done to increase efficiency. This provides the basis for a good energy monitoring system (EMS), as well as a system for reporting and graphical presentation.

Requirement Specification: 

A system must be established for energy measurement and monitoring (EMS) that makes it possible to constantly monitor energy use in detail and identify deviations that rapidly affect the building's energy consumption.

The design must include a system for energy measurement and monitoring (EMS) that makes it possible to constantly monitor energy use in detail and identify deviations that rapidly affect the building's energy consumption. Contractors must document fulfilment of this requirement in the project.

Separate secondary meters connected to an energy measurement system must measure:

  • Heating (room and ventilation)
  • Hot water
  • Cooling (room and ventilation)
  • Fans and pumps (larger)
  • Lighting and smaller technical equipment
  • Other equipment that consumes a lot of energy if relevant

All measured data must be stored and used as a basis for identifying trends and calculating deviations from normal operation. It must be possible to regularly communicate the various systems' energy consumption to the building's users.

The design project must show that secondary meters fulfil the requirements; the associated system diagrams must be included for all meters, with a description of functions. You must also produce specifications for the energy measurement system and the requirements that have been set for the user interface and functions.

Information about the Requirement Specification: 

Energy monitoring means the systematic and periodic checking of energy consumption, where the energy consumption is assessed in relation to outdoor temperatures, in relation to produced goods. This must also be assessed in relation to the parameters that affect energy consumption such as indoor and outdoor temperatures, people density, internal loads/equipment, lights and air quality. It must be possible to quickly identify deviations that affect the building's energy consumption so that the amount of power used can be minimised.

TEK17 stipulates a requirement that blocks of flats and non-residential buildings must separately measure the energy used for heating and the energy used for tap water. Measuring energy use by multiple purposes and areas will increase the focus on energy consumption and make it easier to assess measures for reducing energy consumption more and the effects of these. A more detailed energy monitoring system must provide clear, reliable and up-to-date information, warn of abnormal operating conditions, and indirectly contribute to more aware energy consumption.

All types of energy delivered to a building area (local/leased zone/unit) must be measured, i.e. electricity, waterborne heating and cooling, or other forms of energy/fuel that are consumed.

 

Advanced

Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Motive

Experience shows that buildings use more energy than theoretically calculated. This can be a challenge and drive up costs.

Argument

In order to achieve better correspondence between theoretical energy needs and actual energy consumption, buildings should be designed for good energy management. This means a building must have components and systems for analysing energy data and monitoring energy use during operation.

Secondary meters for recording the consumption of different equipment and areas/zones are an important tool for minimising energy consumption in a building. These make it easier to see how energy is used in the building and what can be done to increase efficiency. This provides the basis for a good energy monitoring system (EMS), as well as a system for reporting and graphical presentation.

Requirement Specification: 

A system must be established for energy measurement and monitoring (EMS) that makes it possible to constantly monitor energy use in detail and identify deviations that rapidly affect the building's energy consumption.

The design must include a system for energy measurement and monitoring (EMS) that makes it possible to constantly monitor energy use in detail and identify deviations that rapidly affect the building's energy consumption. Contractors must document fulfilment of this requirement in the project.

Separate secondary meters connected to an energy measurement system must measure:

  • Heating (room and ventilation)
  • Hot water
  • Cooling (room and ventilation)
  • Fans and pumps (larger)
  • Lighting and smaller technical equipment
  • Other equipment that consumes a lot of energy if relevant

All measured data must be stored and used as a basis for identifying trends and calculating deviations from normal operation. It must be possible to regularly communicate the various systems' energy consumption to the building's users.

The design project must show that secondary meters fulfil the requirements; the associated system diagrams must be included for all meters, with a description of functions. You must also produce specifications for the energy measurement system and the requirements that have been set for the user interface and functions.

Additionally, you must design an accessible energy measurement system or secondary meters that measure the energy supply to all leased areas or, for buildings with only one tenant, each floor or any separate wings.

If the building has many different functions with different energy consumption profiles, there must be separate meters in zones with different functions.

Information about the Requirement Specification: 

Energy monitoring means the systematic and periodic checking of energy consumption, where the energy consumption is assessed in relation to outdoor temperatures, in relation to produced goods. This must also be assessed in relation to the parameters that affect energy consumption such as indoor and outdoor temperatures, people density, internal loads/equipment, lights and air quality. It must be possible to quickly identify deviations that affect the building's energy consumption so that the amount of power used can be minimised.

TEK17 stipulates a requirement that blocks of flats and non-residential buildings must separately measure the energy used for heating and the energy used for tap water. Measuring energy use by multiple purposes and areas will increase the focus on energy consumption and make it easier to assess measures for reducing energy consumption more and the effects of these. A more detailed energy monitoring system must provide clear, reliable and up-to-date information, warn of abnormal operating conditions, and indirectly contribute to more aware energy consumption.

All types of energy delivered to a building area (local/leased zone/unit) must be measured, i.e. electricity, waterborne heating and cooling, or other forms of energy/fuel that are consumed.

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Published: 08. Feb 2018, Last modified: 26. Sep 2018