| Pay Back Calculation - A
Case study for New Installation. |
| |
|
|
|
|
| Pay Back Period in Months. |
6.38
|
| The input Current of the 100 Tube lights with Conventional
Chokes = 0.41A X 100 |
41A
|
| The input Current of the 100 Tube lights with eChoke electronic
Chokes= 0.13A X 100 |
13A
|
| Typical energy saving Calculations using an eChoke electronic
ballast in comparision |
| with Magnetic Choke Running for
24 Hours a day. Number of Tube lights 100 |
| |
|
|
|
|
| Sr. No. |
PARTICULARS |
BASIS |
MAGNETIC
CHOKE |
ELECTRONIC
CHOKE |
| A |
BALLAST COST |
|
|
|
| 1 |
ELECTRONIC BALLAST QTY. |
100
|
|
|
| 2 |
ELECTRONIC BALLAST @ OF Rs. |
375
|
|
37,500.00
|
| 3 |
MAGNETIC BALLAST QTY. |
100
|
|
|
| 4 |
MAGNETIC BALLAST @ OF Rs. |
180
|
18,000.00
|
|
| |
(Inclusive of Starter & Capacitor) |
|
|
|
| |
(Standard Philips / Compton
Chokes) |
|
|
|
| |
|
|
|
|
| B |
CONSUMPTION CALCULATION |
|
|
|
| 1 |
CONSUMPTION PER ONE TUBE LIGHT
(W) |
|
45.00W
|
28.00W
|
| 2 |
NO. OF TUBE LIGHTS |
100
|
4,500.00W
|
2,800.00W
|
| 3 |
KWH FOR A DAY WITH HOURS PER DAY |
12
|
54.000
|
33.600
|
| 4 |
COST OF UNIT CONMSUMPTION AT RS. |
5
|
270.00
|
168.00
|
| 5 |
CONSUMPTION COST FOR A MONTH WITH
DAYS |
30
|
8,100.00
|
5,040.00
|
| |
|
|
|
|
| C |
COST SAVING CALCULATIONS |
|
|
|
| 1 |
MONTHLY INCREMENTAL
SAVINGS |
|
|
3,060.00
|
| 2 |
YEARLY SAVINGS |
|
|
36720.00
|
| |
|
|
|
|
| D |
PAY BACKCALCULATIONS
|
|
|
|
| 1 |
INITIAL INVESTMENT FOR BALLASTS |
|
18,000.00
|
37,500.00
|
| 2 |
ADDITIONAL INITIAL INVESTMENT |
|
|
19,500.00
|
| 3 |
TOTAL MONTHLY SAVINGS |
|
|
3,060.00
|
| 4 |
PAY BACK PERIOD IN MONTHS |
|
|
6.38
|
| |
|
|
|
|
| NOTE: AVERAGE MAGNETIC CONSUMPTION
IS ASSUMED 45 W. |
| ALL MEASUREMENTS AT 240V. 50hz. |
| MORE ENERGY
CAN BE SAVED IN A.C. DUE TO LESS HEAT LOAD ON A.C. |
