Before going on to do the calculation, you will need the following data to hand:
The percentage of each type of floor area for your building (see the Guide for details) The total floor area of your building in square metres Your annual electical consumption figure in kWh Your annual gas or oil consumption figure in kWh for the same 12 month period The Degree Days correction figure from this calculator: (note the result will appear in a new window) Year ending:   January February March April May June July August September October November December 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020   Region:   1 Thames Valley 2 South East 3 Southern 4 South West 5 Severn Valley 6 Midland 7 West Pennines 8 North West 9 Borders 10 North East 11 East Pennines 12 East Anglia 13 West Scotland 14 East Scotland 15 North East Scotland 16 Wales 17 Northern Ireland 18 North West Scotland Your weekly occupancy figure (in hours)
	If you now have all the data written down, proceed to the calculator...