Download: Calculation of the return on investment of an energy saving bulb (fluo or led)

Small Excel file (OpenOffice compatible) calculating the return on investment of an energy saving light bulb.

This file is a follow-up to this article: Electricity: return on investment and savings of a compact fluorescent bulb.

Flash version directly usable of this calculator

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Download file (a newsletter subscription may be required): Calculation of the return on investment of an energy saving bulb (fluorescent or led)

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