Warwickshire County Council Building Energy Consumption Review April 2014 to March 2015 Report prepared by WCC Resources Group: Physical Assets / Construction Services / Energy Team http://www.warwickshire.gov.uk/energyperformance http://www.warwickshire.gov.uk/energyandwater Version History Date Document Document Revision Document Author / Reviser /. Version History Approver August to 1 Basis of report prepared Dr Jacky Lawrence, Energy December and sent out as draft for Manager; 2015 consultation. Adam Wilkinson / Rachael Blundell, Energy Data Analysts January 2016 2 Incorporated comments Dr Jacky Lawrence, Energy from Craig Roberts, Manager; Members and others. Adam Wilkinson / Rachael Blundell, Updated average energy Energy Data Analysts costs. Excluded street lighting etc. electricity from actual /budget costs table. Table of Contents Summary ........................................................................................................................ 5 Total Energy Consumption 2014/15 ................................................................................ 6 Electricity ..................................................................................................................... 6 Table 1 Electricity consumption data 14/15 ................................................................. 6 Gas .............................................................................................................................. 7 Table 2 Gas consumption data 14/15 .......................................................................... 7 Combined .................................................................................................................... 7 Table 3 Total consumption and carbon dioxide emissions for electricity and gas 14/15 .................................................................................................................................... 7 Carbon Dioxide Emissions Data 2014/15 ....................................................................... 8 Table 4 Year on year carbon dioxide emissions data 2008/09 to 2014/15 .................. 8 Carbon Dioxide Equivalents ........................................................................................ 9 Table 5 Carbon dioxide equivalents ............................................................................ 9 Emission Factors 2014/15 ........................................................................................... 9 Table 6 CRC Carbon dioxide emission factors 14/15 .................................................. 9 Yearly Comparisons of Carbon Dioxide Emissions – Schools + Non Schools ............ 9 Table 7 Schools and Non- schools CO2 emissions 2008 – 2015 ................................ 9 Tonnes of carbon dioxide per £million pounds of gross revenue expenditure .............. 10 Table 8 Carbon dioxide emissions per £million gross revenue expenditure 2010/11 to 2014/15 ..................................................................................................................... 10 Degree Day Data for Reporting Periods .................................................................... 10 Table 9 Degree Days in each CRC reporting year – Midland region 2010 - 2015 ..... 10 Figure 1 Graph showing the relationship between carbon dioxide emissions from gas consumption and heating degree day data from 2011/12 to 2014/15 ........................ 10 Electricity Overview ....................................................................................................... 11 Electricity Consumption per Unit of Floor Area (kWh/m2) (All Properties) ................. 11 Table 10 Electricity consumption per unit of floor area (kWh/m2) 2010 – 2015 ......... 11 Electricity Consumption per Unit of Floor Area (kWh/m2) (Schools) .......................... 11 Table 11 School electricity consumption per unit of floor area (kWh/m2) 2014 / 15 ... 11 Electricity Consumption per Unit of Floor Area (kWh/m2) (Non-Schools) .................. 11 Table 12 Non-Schools electricity consumption per unit of floor area (kWh/m2) 2014 / 15 .............................................................................................................................. 11 Electricity Cost per Unit of Floor Area (£/m2) (All Properties) .................................... 12 Table 13 Electricity cost per unit of floor area (£/m2) 2010 – 2015 ............................ 12 Electricity Cost per Unit of Floor Area (£/m2) (Schools) ............................................. 12 Table 14 School electricity cost per unit of floor area (£/m2) 2014 / 15 ..................... 12 Electricity Cost per Unit of Floor Area (£/m2) (Non-School) ....................................... 12 Table 15 Non-School electricity cost per unit of floor area (£/m2) 2014 / 15 .............. 12 Electricity Consumption per Pupil (kWh/Pupil) .......................................................... 13 Table 16 School electricity consumption per pupil (kWh/Pupil) 2010 – 2015 ............ 13 Electricity Cost per Pupil (£/Pupil) ............................................................................. 13 Table 17 School electricity cost per pupil (£/Pupil) 2010 – 2015 ............................... 13 Gas Overview ............................................................................................................... 14 Gas Consumption per Unit of Floor Area (kWh/m2) (All Properties) .......................... 14 Table 18 Gas Consumption per Unit of Floor Area (kWh/m2) 2010 – 2015 ............... 14 Gas Consumption per Unit of Floor Area (kWh/m2) (Schools) ................................... 14 Table 19 Schools gas consumption per unit of floor area (kWh/m2) 2010 – 2015 ..... 14 Gas Consumption per Unit of Floor Area (kWh/m2) (Non-Schools) ........................... 14 Table 20 Non-School gas consumption per unit of floor area (kWh/ m2) 2014/15 ..... 14 Gas Cost per Unit of Floor Area (£/m2) (All Properties) ............................................. 15 Table 21 Gas cost per unit of floor area (£/m2) 2010 to 2015 .................................... 15 2 Report prepared by WCC Resources Group: Physical Assets / Construction Services / Energy Team Gas Cost per Unit of Floor Area (£/m2) (Schools) ..................................................... 15 Table 22 Schools gas cost per unit of floor area (£/m2) 2014/15 ............................... 15 Gas Cost per Unit of Floor Area (£/m2) (Non-Schools) .............................................. 15 Table 23 Non-Schools gas cost per unit of floor area (£/m2) 2014/15 ....................... 15 Gas Consumption per Pupil (kWh/Pupil) ................................................................... 16 Table 24 School gas consumption per pupil (kWh/pupil) 2010 – 2015 ...................... 16 Gas Cost per Pupil (£/pupil) ...................................................................................... 16 Table 25 Schools gas cost per pupil (£/pupil) 2014/15 .............................................. 16 Year on Year Changes ................................................................................................. 17 Reasons for the Range of Values and Year on Year Changes in Energy Consumption and Cost .................................................................................................................... 17 WCC Finance Team Budget and Actual Energy Related Costs (from the ledger) 2014/15 ......................................................................................................................... 19 14/15 Actual Energy Costs ........................................................................................ 19 Table 26 Actual energy costs 14/15 .......................................................................... 19 14/15 Budgeted Energy Costs ................................................................................... 19 Table 27 Budgeted energy costs 14/15 ..................................................................... 19 Changes in Actual Energy Costs 11/12 to 14/15 ....................................................... 20 Table 28 Changes in actual energy costs 11/12 to 14/15 .......................................... 20 13/14 Actual Energy Costs .................................................................................... 20 Table 29 Actual energy costs 13/14 .......................................................................... 20 12/13 Actual Energy Costs .................................................................................... 20 Table 30 Actual energy costs 12/13 .......................................................................... 20 11/12 WCC Actual Energy Costs ........................................................................... 21 Table 31 Actual energy costs 11/12 .......................................................................... 21 Calculating Property Specific Energy Costs .................................................................. 22 Methodology .............................................................................................................. 22 Energy Web Pages ................................................................................................... 23 Energy and Water Efficiency Performance ............................................................ 23 Energy Policy ......................................................................................................... 23 School Energy Management .................................................................................