Heating degree days are a measure of how much (in degrees), and for how long (in days), the outside air temperature was below a certain level. (Broomley M., 2009)
Cooling degree days are a measure of how much (in degrees), and for how long (in days), the outside air temperature was above a certain level. They are commonly used in calculations relating to the energy consumption required to cool buildings. (Broomley M., 2009)
Base temperature used for the UK: 15.5°C.
Cooling degree days are a measure of how much (in degrees), and for how long (in days), the outside air temperature was above a certain level. They are commonly used in calculations relating to the energy consumption required to cool buildings. (Broomley M., 2009)
Base temperature used for the UK: 15.5°C.
REFERENCES
[1] BizEE, n.d. Degree Days.net - Custom Degree Day Data. [online] Available at: http://www.degreedays.net/ [Accessed: 1 February 2014]
[2] BizEE, n.d. Degree Days - Handle with care! [online] Available at: http://www.energylens.com/articles/degree-days#base-temperature-problem [Accessed: 1 February 2014]
[3] Martin B., 2009. Degree Days. Understanding heating and cooling degree days. [online] Available at: http://www.degreedays.net/introduction [Accessed: 1 February 2014]
[1] BizEE, n.d. Degree Days.net - Custom Degree Day Data. [online] Available at: http://www.degreedays.net/ [Accessed: 1 February 2014]
[2] BizEE, n.d. Degree Days - Handle with care! [online] Available at: http://www.energylens.com/articles/degree-days#base-temperature-problem [Accessed: 1 February 2014]
[3] Martin B., 2009. Degree Days. Understanding heating and cooling degree days. [online] Available at: http://www.degreedays.net/introduction [Accessed: 1 February 2014]