This session will provide a unique opportunity for participants to listen first-hand to end users' perspectives and their experiences using natural refrigerants, and learn about the technical aspects of these installations from the vendors themselves.

2. The Greenest Grocer:
First R290 Water Loop Store in
the Philippines
by
Royal Duty Free Shops, Inc.
&
Cold Front Technologies Asia, Inc.

3. Emilio Gonzalez La’O
President & CEO

4. RDFS NEW STORE SET UP
SHOWCASE QTY TOTAL LENGTH
FREOR MULTI DECK CHILLER 3.75M 6
26.88MFREOR MULTI DECK CHILLER 2.50M 1
FREOR MULTI DECK CHILLER 1.88M 1
FREOR SERVE OVER CHILLER 3.75M 4
21.26M
FREOR SERVE OVER CHILLER 2.50M 1
FREOR SERVE OVER CHILLER 1.88M 1
FREOR SERVE OVER CHILLER OC 90 1
FREOR SELF SERVICE CHILLER 1.88M 1
FREOR GLASS DOOR FREEZER 3.90M 1 3.90M
AHT ISLAND FREEZER 2.10M 20
51.25M
AHT ISLAND FREEZER 1.85M 5

5. RDFS NEW STORE LAY OUT
➢Project Start: Aug. 15
➢Project End: Dec. 15
➢Phase 1: Island Freezers
➢Phase 2: Refrigeration Showcase

6. ENERGY CONSUMPTION COMPARISON:
REFRIGERATION SYSTEMS
* Based on FX rate of PHP 53.00 = USD 1.00
REFRIGERATION SYSTEM
ENERGY
CONSUMPTION/DAY
(KWHR/24 HRS)
RATE
(PHP/KWHR)
MONTHLY COST
(CONSUMPTION/DAY
x RATE x 30 DAYS)
YEARLY COST
(MONTHLY COST x 12 MONTHS)
R290 WATER LOOP 727.59 10 PHP 218,277.89
PHP 2,619,334.66
USD 49,421.41*
R404A PLUG-IN 909.49 10 PHP 272,847.36
PHP 3,274,168.32
USD 61,776.76
R404A REMOTE 1,158.35 10 PHP 347,504.52
PHP 4,170,054.24
USD 78,680.27

7. ENERGY CONSUMPTION COMPARISON:
ADDITIONAL HEAT LOAD ON AC
* Assumed at 12.0 EER for inverter type aircon. Formula: EER = BTU/(WATTS/HR)
REFRIGERATION SYSTEM
HEAT REJECTION (KW)
ACU EER*
ADDITIONAL HEAT LOAD IN STORE
CONDENSING
CAPACITY (KW)
BTU WATTS/HR
OPERATION
/24 HRS
KWHR/DAY
R290 WATER LOOP 0.00 0.00 12 0.00 16 0.00
R404A PLUG-IN 85.2 290,702.40 12 24,225.20 16 387.60
REFRIGERATION SYSTEM
ENERGY
CONSUMPTION/DAY
(KWHR/24 HRS)
RATE
(PHP/KWHR)
MONTHLY COST
(CONSUMPTION/DAY
x RATE x 30 DAYS)
YEARLY COST
(MONTHLY COST x 12 MONTHS)
R290 WATER LOOP 0.00 10 PHP 0.00
PHP 0.00
USD 0.00**
R404A PLUG-IN 387.60 10 PHP 116,280.96
PHP 1,395,371.52
USD 26,327.76**
** Based on FX rate of PHP 53.00 = USD 1.00

8. TOTAL ENERGY CONSUMPTION
AND ENERGY SAVINGS
REFRIGERATION
SYSTEM
TOTAL ENERGY
CONSUMPTION*
SAVINGS WITH
R290 WATER LOOP
ANNUAL
ENERGY COST
ANNUAL SAVINGS WITH
R290 WATER LOOP
R290
WATER LOOP
261,932.40 kWh
PHP 2,619,344.66
USD 49,421.41**
R404A
PLUG-IN
466,952.83 kWh 205,020.43 kWh
PHP 4,669,539.84
USD 88,104.53
PHP 2,050,205.18
USD 38,683.12
R404A
REMOTE
416,970.00 kWh 155,037.60 kWh
PHP 4,170,054.24
USD 78,680.27
PHP 1,550,719.58
USD 29,258.86 37.19%
43.91%
** Based on FX rate of PHP 53.00 = USD 1.00
* Refrigeration and AC Heat Load Combined

9. ANNUAL MAINTENANCE
COST COMPARISON
REFRIGERATION
SYSTEM
NUMBER
OF UNITS
MAINTENANCE OIL CHANGE TOTAL COST
R290 WATER LOOP 17 PHP 132,000.00 PHP 0.00
PHP 132,000.00
USD 2,490.56*
R404A PLUG-IN 22 PHP 126,000.00 PHP 0.00
PHP 126,000.00
USD 2,377.36
R404A REMOTE 17 PHP 168,000.00 PHP 110,000.00
PHP 278,000.00
USD 5,245.28
* Based on FX rate of PHP 53.00 = USD 1.00

10. REFRIGERANT CHARGE AND
COST COMPARISON
REFRIGERATION
SYSTEM
REFRIGERANT
TOTAL SYSTEM
CHARGE
(KG)
COST PERCENT
DIFFERENCE
TO R290
PRICE PER KG
(PHP)
TOTAL ACCUMULATED
(PHP)
WATER LOOP R290 9.05 kg 450
PHP 4,072.50
USD 76.84
PLUG IN R404A 43.75 kg 500
PHP 21,875.00
USD 412.74
437.14%
REMOTE R404A 91.00 kg 500
PHP 45,500.00
USD 858.49
1,017.25%

11. TOTAL OPERATING COST COMPARISONANNUAL COST (PHP)
0,00
1.250.000,00
2.500.000,00
3.750.000,00
5.000.000,00
2751334,6556
4448054,24
4795539,8395
SYSTEM: PLUG INR404A SYSTEM: REMOTE RACKR404A SYSTEM: WATERLOOPR290
74% more than R290 water loop
62% more than R290 water loop
USD 90,481.88*
USD 51,911.97
USD 83,925.55
* Based on FX rate of PHP 53.00 = USD 1.00

12. GWP & ODP DATA:
EXISTING LAYOUT (R404A PLUG-IN)
SYSTEM: PLUG IN REFRIGERANT ODP* GWP**
SHOWCASE QTY LENGTH TYPE KG
MULTI DECK 2.50M 10
26.88M
R404A 24.00 0 94,128.00
MULTI DECK 1.88M 1 R404A 1.70 0 6,667.40
SERVE OVER CASE 3.75M 4
21.26M
R404A 4.40 0 17,256.80
SERVE OVER CASE 2.50M 1 R404A 1.00 0 3,922.00
SERVE OVER CASE 1.88M 1 R404A 0.90 0 3,529.80
SERVE OVER CASE OC 90 1 R404A 0.70 0 2,745.40
SELF SERVICE CASE 1.88M 1 R404A 0.90 0 3,529.80
GLASS DOOR FREEZER 1.88M 2 3.76M R404A 4.00 0 15,688.00
AHT ISLAND FREEZER 2.10M*** 20
51.25M
R404A 5.00 0 19,610.00
AHT ISLAND FREEZER 1.85M*** 5 R404A 1.15 0 4,510.30
TOTAL 43.75 171,587.50
* ODP (Ozone Depletion Potential) R404a=0/kg R290=0/kg
** GWP (Global Warming Potential) R404a=3922/kg R290=3/kg
*** Not included in the water loop system

13. GWP & ODP DATA:
NEW LAYOUT (R290 WATER LOOP)
SYSTEM: WATER LOOP REFRIGERANT ODP* GWP**
SHOWCASE QTY LENGTH TYPE KG
MULTI DECK CHILLER 3.75M 6
26.88M
R290 2.70 0 8.10
MULTI DECK CHILLER 2.50M 1 R290 0.45 0 1.35
MULTI DECK CHILLER 1.88M 1 R290 0.30 0 0.90
SERVE OVER CHILLER 3.75M 4
21.26M
R290 1.20 0 3.60
SERVE OVER CHILLER 2.50M 1 R290 0.30 0 0.90
SERVE OVER CHILLER 1.88M 1 R290 0.30 0 0.90
SERVE OVER CHILLER OC 90 1 R290 0.60 0 1.80
SELF SERVICE CHILLER 1.88M 1 R290 0.30 0 0.90
GLASS DOOR FREEZER 3.90M 1 3.90M R290 0.45 0 1.35
AHT ISLAND FREEZER 2.10M*** 20
51.25M
R290 2.00 0 6.00
AHT ISLAND FREEZER 1.85M*** 5 R290 0.45 0 1.35
TOTAL 9.05 27.15
* ODP (Ozone Depletion Potential) R404a=0/kg R290=0/kg
** GWP (Global Warming Potential) R404a=3922/kg R290=3/kg
*** Not included in the water loop system

14. PHASE 1 COMPLETED