Resources/ Calculators

Compare & Save

Current System

TOTAL # OF FIXTURES
X
enter the wattage of the present lights and the proposed LED system.
CURRENT TOTAL WATTS PER FIXTURES
X
# OPERATING HOURS PER DAY
X
number of days a year

7 days a week = 365
5 days a weeek = 260
6 days a week = 312

don't forget both areas. Led and current system
# OPERATING DAYS PER YEAR
X
This is the cost of energy in the client area. Usually between .04 to .54

don't forget to use the same number on current system and led ststem
USA KILOWATT NATIONAL AVERAGE RATE
=
ANNUAL ELECTRICAL COST BEFORE

LED SYSTEM

TOTAL # OF FIXTURES
X
NEW TOTAL WATTS PER FIXTURE
X
# OPERATING HOURS PER DAY
X
# OPERATING DAYS PER YEAR
X
USA KILOWATT NATIONAL AVERAGE RATE
=
ANNUAL ELECTRICAL COST AFTER

MAINTENANCE SAVINGS

TOTAL # OF LIGHTS
X (
this is the cost to change out the lamp presently installed. Lamp plus labor
COST PER LIGHT PLUS LABOR
X
WASTE MANAGEMENT COST PER LIGHTS PLUS LABOR
)+(
TOTAL # OF BALLASTS
X
This is the cost to replace the ballast. Parts and labor. We estimate about 10 %. Use 10 of the number
Example

37.00 ballast
25.00 labor
62.00 Total
devide by 10
6.20
TOTAL COST PER BALLAST PLUS LABOR BASED ON 10% BALLAST FAILURE
) =
TOTAL ANNUAL MAINTANENCE SAVINGS

SAVINGS Calculation

TOTAL ANNUAL ELECTRICAL SAVINGS
+
TOTAL ANNUAL MAINTANENCE SAVINGS
=
TOTAL ANNUAL SAVINGS
TOTAL ANNUAL SAVINGS
/
TOTAL # OF FIXTURES
=
TOTAL ANNUAL SAVINGS PER FIXTURE
TOTAL MONTHLY SAVINGS
TOTAL ANNUAL SAVINGS
TOTAL GROSS 5 YEAR SAVINGS
This is the cost of the product to your client plus the estimated labor to install
UNIT PRICE INCLUDING INSTALLATION
x
TOTAL # OF LIGHTS
=
PROJECT COST
ANNUAL HOURS BURNED ON ALL LIGHTS
TOTAL NET 5 YEARS SAVINGS (US$)
ROI (MONTHS) ENERGY AND MAINTENANCE
L70 OF LED LAMP LIFETIME
YEARLY CO2 REDUCTION (POUNDS)
LIFETIME SAVING MINUS COST
LAMPS WILL LAST MONTHS
LAMPS USAGE FREE RIDE, MONTHS ( LAST FOR HOW LONG AFTER PAID FOR)
SAVING PER LAMP PER YEAR ENERGY ONLY
SAVINGS PER LAMP LIFETIME
LIFETIME SAVING GROSS
ROI ENERGY ONLY ( MONTHS )