The Azimuth Project
Commercial

Commercial carbon reduction measures

In descending order of effectiveness:

Table 9: League Table of the Most Cost Effective Measures for the Commercial Sector Central business case £/TCO2

1 Vending Machines Energy management : -233.67

2 Photocopiers – Energy Management : -233.67

3 Computers – Energy Management : -233.67

4 Monitors – Energy Management : -233.67

5 Printers – Energy Management : -233.67

6 Office Equipment – Most energy efficient monitor pc only : -209.41

7 Lights – Turn off Lights for an extra hour : -194.08

8 Lights – Sunrise-Sunset Timers : -193.90

9 Lights – Basic Timer : -193.78

10 Heating – More efficient air conditioning : -193.73

11 Office Equipment – Most energy efficient Monitor : -192.18

12 Lights – Light Detectors : -188.92

13 Stairwell Timer : -180.65

14 Heating – Programmable Thermostats High : -159.50

15 Heating – Optimising Start Times : -158.88

16 Heating – Reducing Room Temperature : -158.32

17 Most energy efficient fridge : -156.83

18 Heating – Thermostatic Radiator Valves Fully Installed : -140.77

19 Compressed air : -136.45

20 Most energy efficient freezer : -108.99

21 Presence Detector : -104.92

22 Most energy efficient fridge-freezer : -67.84

23 Heating – most energy efficient boiler : -60.22

24 Most energy efficient flat roof insulation : -59.58

25 Air Source Heat Pump with RHI : -22.62

26 Biomass boilers with RHI : -19.33

27 Most energy efficient cavity wall insulation : -10.54

28 Most energy efficient pitched roof insulation : -10.27

29 Most energy efficient external wall insulation : 10.48

30 Lights – Metal Halide Floods : 19.92

31 Lights – IRC Tungsten-Halogen – Spots : 23.05

32 Ground Source Heat Pump with RHI : 56.95

33 Lights- Most energy efficient Replacement 26mm : 154.45

34 Solar water heating with RHI : 173.30

35 Motor – 4 Pole Motor – EFF1 replace 4 Pole : 192.51

36 Lights – High frequency ballast : 194.73

37 Lights- Most energy efficient Replacement Tungsten : 521.57

38 Variable Speed Drives : 687.98

39 Most energy efficient double glazing : : 691.05

40 Most energy efficient double glazing (replace double) : 2918.71

Table 10: League Table of the Most Carbon Effective Measures for the Commercial Sector Central business case KTCO2

1 Heating – most energy efficient boiler : 139.21

2 Heating –Programmable Thermostats High : 131.44

3 Biomass boilers with RHI : 114.04

4 Air Source Heat Pump with RHI : 94.65

5 Ground Source Heat Pump with RHI : 93.83

6 Heating – Reducing Room Temperature : 80.38

7 Most energy efficient double glazing : 47.21

8 Heating – Optimising Start Times : 45.14

9 Lights – Basic Timer : 32.14

10 Heating – More efficient air conditioning : 28.55

11 Heating – Thermostatic Radiator Valves Fully Installed : 24.93

12 Lights- Most energy efficient Replacement 26mm : 20.80

13 Lights – Turn off Lights for an extra hour : 17.48

14 Monitors – Energy Management : 15.00

15 Most energy efficient external wall insulation : 14.71

16 Most energy efficient flat roof insulation : 14.51

17 Lights – High frequency ballast : 13.87

18 Solar water heating with RHI : 12.60

19 Most energy efficient cavity wall insulation : 10.55

20 Most energy efficient pitched roof insulation : 9.63

21 Presence Detector : 9.36

22 Computers – Energy Management : 6.40

23 Variable Speed Drives : 5.96

24 Stairwell Timer : 5.94

25 Lights- Most energy efficient Replacement Tungsten : 4.93

26 Office Equipment – Most energy efficient monitor PC only : 4.56

27 Lights – IRC Tungsten-Halogen – Spots : 4.06

28 Most energy efficient freezer : 3.89

29 Lights – Sunrise-Sunset Timers : 3.41

30 Lights – Light Detectors : 3.39

31 Most energy efficient double glazing (replace double) : 2.98

32 Compressed air : 2.38

33 Printers – Energy Management : 1.67

34 Lights – Metal Halide Floods : 1.64

35 Most energy efficient fridge : 1.27

36 Photocopiers – Energy Management : 0.93

37 Vending Machines Energy management : 0.35

38 Motor – 4 Pole Motor – EFF1 replace 4 Pole : 0.30

39 Most energy efficient fridge-freezer : 0.12

40 Office Equipment – Most energy efficient monitor : 0.06