Philips A19 LED ROI Payback Calculator

Universal ROI Calculator

Philips A-19 LED against
60-Watt Incandescent
calculate payback with
costs & interest

Please read:
ENSURE THAT REPLACEMENT HAS EQUIVALENT LIGHTING PERFORMANCE.
This calculator gives payback time, and both the annual and life-time cost & savings figures for energy, maintenance, and CO₂ production. It calculates Lighting Power Density from area of at least 50 square feet per fixture, and provides the maximum fixtures allowed from a target LPD.
This calculator will not perform properly if removed from this site. Updates and maintenance are performed on the web site.

This was preloaded with the Philips A19 details and 10% Financial Interest. Change any figures suitable for your application. See Philips Data Sheets

Label Label

Simple ROI is calculated on product lifetime using energy and maintenance repayment, with the industry standard [ (Payback – Investment) ÷ Investment ×100 ] formula.
Cost may be full direct if retrofit, or may be difference (Original - New) if complete new installation. Interest is added to the Investment and original equipment costs for calculating payback and ROI. Include ALL COSTs and verify calculations before implementing a solution. Check with your electric utility provider for rate structures related to Lighting Power Density (LPD/UPD). Site owner not responsible for errors, misapplications or oversights.

Start with the Tab key, or select an entry with mouse.
Step forward with Tab; fill in shaded cells as required.
Step back with Shift Tab.

Parameters for energy statistics: Label

Lighting Power Density Section

Enter Power Consumption & No. of Fixtures

Label

Label

LPD = Total Watts ÷ Total Square Feet

Original Watts

LED Watts

Quantity

Sq-Ft per Fixture = Label Total

Total Label kW

Enter Target LED LPD

Hour-Day-Week Notes:
• For Occ. sensors or dimming, use
average hours
• For photocell use nighttime hours
• Use decimal weeks if holidays
affect lighting (1 day = 0.14 wk)

× Daily use

Hours

This LPD combo allows Label LED fixtures.

× Weekly use

Days

Label

LPD Statistics W/Ft ²

Original LPD Label
– LED LPD Label
= Saved Label

× Yearly use

Weeks

× Power Cost

/ kWhr

Annual Energy Cost:

Original $Label

LED $Label

LPD Notes:
• Target LPD uses LED Watts and Quantity, and affects only the count below it.
• HID LPD = LED projection when = Watts.

Annual Savings =

$Label

LED Investment:

Full Cost for 1 Fixture Installed. ( costs - discounts ) =

LED Maintenance Interval: Years @ $ per Visit. [ Lifetime ÷ Interval × Cost × Quan.= $Label ]

( $Label × Label ) + $Label = $Label

+ FIXED JOB COSTS $

= $Label Investment Label

Subtract a rebate from FIXED JOB COSTS, or, enter negative (-)JOB COSTS if rebate only.

LED energy costs and reduced CO₂ production during LED lifetime:

LED Life Hours ÷ Label Hours/Year = Label Years Lifetime

CO₂ reductions *
Label Tons Less per year
Label Tons Less per lifetime

Years × $Label annual energy cost = $Label

Years × $Label annual energy savings = $Label (over original)

$Label invest. + $Label energy = $Label Project Cost

Original fixture lifetime maintenance and energy costs:

Original fixture life Hours ÷ Label Hours/Year = Label Years Lifetime

Years × $Label annual energy cost = $Label

Repair/Replacement Cost $ × Label = $Label

$Label Fixtures & Maint. + $Label energy = $Label Orig. Cost in LED Lifetime, replaced Label times.

Payback time and ROI with Amortized Cost + Interest: Label

% LabelLabel

Label

Payback

LED Investment ÷ Energy Savings

$Label ÷ $Label

= LabelLabel Years on energy alone

Investment ÷ ( Energy + Maint. Savings )

$Label ÷ $Label

= LabelLabel Years on energy & maint.

Simple ROI: (energy & maint. Payback – Investment ) ÷ Investment

= LabelLabel % ROI

RESTORE DEFAULT VALUES

^*US national average CO₂ emissions caused by various power generation capabilities, value provided by the US EPA.