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Typical Office Usage - Demonstrating Cost & Carbon Savings
                       
Existing Installation:
Lamp Configuration Power (w) Quantity Hrs per day Days per week Weeks per year Annual Hours Annual Kwh CO2 (kg) Electricty cost (Kwh) Annual cost
4 x 600mm lamp 104 30 12 5 52 3120 9734.4 4336.480513 £0.120 £1,168.13
(inc control gear)
                    
MR16/GU10 Halogen  50 20 12 5 52 3120 3120 1389.8976 £0.120 £374.40
              5726.378114   £1,542.53
600mm MR16/GU10
 
Proposed Installation:
Lamp Configuration Power (w) Quantity Hrs per day Days per week Weeks per year Annual Hours Annual Kwh CO2 (kg) Electricty cost (Kwh) Annual cost
4 x 600mm LED lamp 40 30 12 5 52 3120 3744 1667.87712 £0.120 £449.28
MR16/GU10 LED Lamp 6 20 12 5 52 3120 374.4 166.787712 £0.120 £44.93
            Total: 1834.664833 Total (£): £494.21
600mm MR16/GU10
Total Saving (£): £1,048.32
% Saving over existing installation: 67.96%
Annual Carbon Emmissions Saved (CO2 Kg): 3891.713281
 

Carbon emission calculations are based on the Carbon Trusts recommendations 0.520kg/CO2 /Kwh of electricity produced.

All running costs are based upon average total circuit wattages of leading UK brands of control gear.

We can supply a more detailed analysis should a specific brand of control gear be requested.