100 numbers of fused 60-Watt incandescent light bulbs (ILB) are replaced by same numbers of 12 Watt CFL instead of new ILB. Calculate the following for 4000 hours of operation per year. • The annual reduction in electricity costs if R 4 per kWh is the energy charge and Rs. 250 per kVA per month is the demand charge. • The simple payback period if the ILB costs R 10 and the CFL costs R 100 (assume life of ILB and CFL as 1000 hours and 4000 hours respectively).

100 numbers of fused 60-Watt incandescent light bulbs (ILB) are replaced by same numbers of 12 Watt CFL instead of new ILB. Calculate the following for 4000 hours of operation per year. • The annual reduction in electricity costs if R 4 per kWh is the energy charge and Rs. 250 per kVA per month is the demand charge. • The simple payback period if the ILB costs R 10 and the CFL costs R 100 (assume life of ILB and CFL as 1000 hours and 4000 hours respectively).

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Subject : Power electronics
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