Energy consumption per m² (ATemp)
What is it?
The KPI can also be used to see the Normal year correction (NYC), also known as weather adjustment, involves a transformation of consumption data to account for variations in temperature and outdoor conditions. This adjustment makes it possible to compare consumption values between different years without unusual weather conditions affecting the calculations.
To carry out seasonal adjustment, data is retrieved from various weather stations, where values from SMHI, which has a network of weather stations across Sweden, are often integrated.
Atemp, or thermal reference area, is the specific floor area used as a basis for calculating the building's primary energy number. It essentially describes the surface of the floor plan that is heated and lies within the building's climate screen. There is no limitation of this surface with respect to the height of the space.
Atemp is defined as the sum of the internal surface of each floor, attic and basement where the temperature is maintained above 10 °C. This sum also includes the area occupied by internal walls, openings for stairs, shafts and the like. However, the area for garages located within the building, in residential buildings or other local buildings is not included.
The KPI thus looks at an energy use that is weighted according to the conditions that existed and divides the use by the property's total (heated) area in order to be able to compare time periods (years, quarters, months) against each other just as easy as properties and areas – since their size no longer matters. The unit is Wh/m2.
How is it calculated?
Energy consumption / Atemp = kWh/m2
(Energy consumption × correction factor) / Atemp = kWh/m2
* Includes only the usage during the specified time period.
Why is it important to follow?
It is important for a real estate company to follow up and analyze this for several reasons:
Efficiency assessment: By monitoring and evaluating the normal year-corrected energy consumption per Atemp, the property company can assess how efficiently energy is used within its buildings. This helps them identify potential areas where improvements can be made to reduce energy consumption and thereby lower operating costs.
Cost savings: By understanding the energy consumption per Atemp, the real estate company can identify buildings or areas that have high energy consumption. This can lead them to take specific measures to reduce energy consumption, which can result in significant cost savings in the long term.
Environmental impact: By reducing energy consumption per Atemp, the property company can reduce its environmental impact and contribute to reduced emissions of greenhouse gases. This is important in today's society where sustainability and environmental awareness are priority issues.
Customers' and tenants' expectations: Many customers and tenants are today aware of and interested in energy efficiency. By following up and reporting energy consumption per Atemp, the property company can meet these expectations and increase its attractiveness on the market.
Legal requirements and certifications: In some jurisdictions, there may be legal requirements or incentives for property companies to track and report energy consumption. In addition, certifications such as LEED or BREEAM may require property companies to measure and report energy consumption and efficiency.
By following up on this key figure, the property company can run more sustainable and profitable operations.
Created by Homepal
8/31/2023
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