What is cooling degree day in SAP EHS-CI - SAP Carbon Impact?

SAP Term: cooling degree day

• Component: EHS-CI

• Component Name: SAP Carbon Impact

• Description: A measure of how much in degrees, and for how long in days, outside air temperature was higher than a specific base temperature. Used for calculations relating to the energy consumption required to cool buildings. The warmer the outside air temperature, the more energy it takes to cool the building.

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• Key Concepts: 
  Cooling degree day (CDD) is a measure of how much energy is needed to cool a building or area over a certain period of time. It is calculated by subtracting the average daily temperature from a base temperature, usually 65°F (18°C). The result is then multiplied by the number of days in the period. CDD is used to estimate the amount of energy needed to cool a building or area, and can be used to compare energy usage between different locations.
  
  How to use it: 
  In SAP Carbon Impact, cooling degree day is used to calculate the energy needed for cooling in a given area. To calculate CDD, you need to know the average daily temperature and the base temperature. The base temperature is usually set at 65°F (18°C). Once you have these two values, you can subtract the average daily temperature from the base temperature and multiply the result by the number of days in the period. This will give you an estimate of how much energy is needed for cooling in that area.
  
  Tips & Tricks: 
  When calculating CDD, it’s important to use accurate data for both the average daily temperature and the base temperature. If either value is inaccurate, it could lead to inaccurate results. Additionally, it’s important to remember that CDD only measures energy needed for cooling, not heating.
  
  Related Information: 
  Cooling degree day is related to heating degree day (HDD), which measures how much energy is needed for heating in a given area. HDD is calculated in a similar way as CDD, but with a base temperature of 65°F (18°C) instead of the average daily temperature. Both CDD and HDD can be used to compare energy usage between different locations.