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Savings Calculator

Savings Calculator

Lamp running costs comparison halogen cfl led combined Oct 2011.xls

LAMP USAGE INFORMATION

WEEKDAYS

WEEKENDS

ACCUMULATIVE SAVING CALCULATIONS PER YEAR

COST OF RUNNING HALOGEN LAMPS

COST OF RUNNING CFL LAMPS

COST OF RUNNING LED LAMPS

COST SAVING HALOGEN TO CFL LAMPS

COST SAVING HALOGEN TO LED LAMPS

COST SAVING CFL TO LED LAMPS

HOURLY USAGE PER DAY

Hours / Week

ACTIVE WEEKS PER YEAR

Total Hours / Year

NUMBER OF LAMPS

(Max 1000)

COST OF ELECTRICITY pence/kwh

CFL

LED

RUNNING COSTS

HALOGEN/INCANDESCENT

POWER CONSUMPTION

(w)

LAMP LIFE

Hrs

REPLACEMENT LAMP COST

INITIAL COST OF LAMPS

ANNUAL ENERGY COST

LAMP REPLACEMENT EVERY

Years

NOTE FOR MAINTAINED AREAS ADDITIONAL COSTS SHOULD BE INCLUDED FOR SERVICING BY PROFESSIONAL PERSONNEL. TYPICALLY AN ELECTRICIAN WILL CHARGE £30.00-£50.00 FOR THE FIRST HOUR OF ANY VISIT AND £25.00-£35.00 PER HOUR THEREAFTER. THIS WILL VARY ACCORDING TO YOUR INDIVIDUAL SERVICE CONTRACT AND GEOGRAPHICAL LOCATION.