Appendix B: Walk-Through Audits
1. General Information
Facility name and type: IGA Supermarket—Commercial
Address: Leeward Highway, Providenciales
Date: 11/16/10
Contact person Jeff Luker
Energy Source Primary energy use is electricity. Propane for bakery ovens.
2. Site Review
The IGA supermarket is the largest supermarket in Providenciales. The facility has undergone a number of energy upgrades since the current management has taken over operations of the facility.
Lighting—The lighting in the facility is primarily 2 lamp 32WT8 fixtures. There are some Par 20 & Par 30 incandescent fixtures that have been upgraded to LED. The warehouse area and exterior lighting consist of 400W and 250W metal halide lamps. Most of the display units contain T8 lamps. However, management staff is experimenting with LED lamps in two of the displays. Plans are being made to install motion controlled lighting in the coolers.
Air conditioning—Eight air conditioning units serve the store. The units are controlled by programmable thermostats.
Refrigeration—Nineteen condensing units are used in the store coolers and freezers. The units range from mid to high efficiency.
3. Energy saving recommendations
Based on a high level analysis the following are energy efficiency recommendations:
Retrofit the warehouse lighting with T5 high output fixtures. This will reduce energy and improve lighting quality in the space. Continue to explore LED lamp replacement options.
Install occupancy sensors for storage coolers/freezers and display cooler lighting.
Implement staff training and awareness programs. An ongoing training program should be in place to ensure that staff follow proper energy management practices.
1. General Information
Facility name and type: Grand Turk Cruise Centre—Commercial
Address: South Base, Grand Turk
Date: 11/12/10
Energy Source Primary energy use is electricity.
2. Site Review
The cruise centre contains multiple buildings and pools. The buildings consist of shops and a restaurant, which are separately metered. The remaining buildings include the office areas and
maintenance shops, storage and mechanical equipment. The cruise center is only operational when the cruise ships are in.
Lighting—Throughout the shops there is a variety of lighting used, most of which being CFLs. The office lighting is primarily 50W MR16 lamps. Shops, storage and some exterior areas had 2 lamp 40WT12 fixtures. The exterior lighting also consists of CFLs.
Air conditioning—Some of the larger shops have split system cooling units. The doors remain open during store working hours. A few of the stores have air curtains at the entrances to help keep the cooling in the building. Around the pool there are ten cabins, each equipped with a window air conditioning units. Cooling for the office space consists of a fan system in the ceiling space equipped with a cooling coil and condensing unit located on the roof. The office had non-programmable thermostats with the temperature set at 64°F.
Water heating—Electric domestic water heaters are used for hot water.
Building envelope—Buildings are not insulated.
Waste—There is a waste water treatment plant for irrigation use. There are a number of pumps associated with this system as well as well brine pumps. The pool pumps are equipped with variable frequency drives. There are two large pumps associated with the Flow Rider water ride. These are not operated very often.
3. Energy saving recommendations
Based on our analysis the following are energy efficiency recommendations:
Retrofit the MR16 halogen lamps with LED fixtures
Replace the remaining T12 lamps with T8 lamps. We recommend replacing the current T8 lamps with 25W T8 lamps and electronic ballasts. This will result in a slight light level reduction in the spaces served by these lights
Install occupancy sensors on switches in offices to control the lighting
Replace air conditioning condensing units with premium efficiency units
Install programmable thermostats in office area and set temperatures to a reasonable set-point such as 72°F
Consider Solar Hot Water Heating
Implement staff training and awareness program. An ongoing training program should be in place to ensure staff follow proper energy management practices such as turning off lights when not needed.
1. General Information
Facility name and type: NJS Francis Building—Commercial
Address: Pond Street, Grand Turk
Date: 11/12/10
Energy Source Primary energy use is electricity.
2. Site Review
Lighting—There are CFL pot-lights throughout the facility. Type 32WT8 lamps were installed in the storage areas and the basement with a few 40WT12 lamps mixed in.
Air conditioning—There are central air handling units providing ventilation and cooling for the facility. There are three units in total, one serving each floor. The basement unit only re-circulates and cools air in the basement.
Refrigeration—The condensing units are all York brand with the exception of the unit in the server room which is Carrier. There are 4 - 12.5 ton (43.9 kW), 1 - 7.5 ton, and 1 - 2.5 ton (kW) of cooling capacity. All units have an estimated seasonal energy efficiency ratio of about 10-11.
Water heating—There is an electric, domestic, hot-water tank. The washroom fixtures have been upgraded to all low flow fixtures including the lavatory aerators with a flow rate of 0.5 gallons per minute.
Building envelope—NJS Francis building is a concrete structure with single glazed windows.
3. Energy saving recommendations
Based on our analysis the following are energy efficiency recommendations:
Replace the remaining T12 lamps with T8 lamps. We recommend considering to replace the current T8 lamps with 25W T8 lamps and electronic ballasts. This will result in a slight light level reduction in the spaces served by these lights
Replace air conditioning condensing units with premium efficiency units
Consider Solar Hot Water Heating
Install occupancy sensors on switches in offices to control the lighting
Staff training and awareness program. An ongoing training program should be in place to ensure staff follow proper energy management practices such as turning off lights when not needed.
1. General Information
Facility name and type: CEES Supermarket—Commercial
Address: Church Folly, Grand Turk
Date: 11/12/10
Energy Source Primary energy use is electricity.
2. Site Review
Lighting—The primary lighting in the facility is 4 lamp T5 high output fixtures. There are a few CFLs in the facility as well.
Air conditioning—There are three packaged Trane air handling units. These units are only turned on when needed. The air systems are controlled by programmable thermostats. The space is maintained around 76-78°F.
Refrigeration—There are 7 condensing units serving the store coolers and freezers. Two of these are not in use. The deli cooler is no longer used as well. The majority of the equipment is energy efficient.
Building envelope—The CEES supermarket is a new building, completed within the last 2 years. The building contains insulation in the walls and roof.
3. Energy saving recommendations
Based on our analysis, for further energy efficiency we recommend replacing refrigeration display units with more efficient models.
1. General Information
Facility name and type: Caicos Pride Seafood—Industrial
Address: South Caicos
Date: 11/15/10
Contact person Jim Baker
Energy Source Primary energy use is electricity.
2. Site Review
Lighting—Caicos Pride Seafood utilizes 40WT12 lamps throughout the facility. Exterior lighting is incandescent.
Air conditioning—In the main plant there are three Carrier fan coil units with condensers outside. These were installed in the past year and are fairly efficient units. There are two walk-in freezers. One is used full time while the other is only turned on as needed. Freezers are maintained at -5°F. The condensing unit is Larkin brand and is estimated to be a standard efficiency unit. There is an ice maker connected to a storage container that produces ice for the process. There is an additional refrigerated storage container that is used as needed.
Equipment—There are a few pumps for transferring water to the facility.
Building envelope—The building is not insulated except for the freezers and permanent shipping coolers. Entryways are equipped with plastic curtains including the freezers.
3. Energy saving recommendations
Based on our analysis the following are energy efficiency recommendations:
Retrofit the 40W T12 lamps and magnetic ballasts with 25W T8 lamps and electronic ballasts
Replace incandescent exterior lighting with CFLs
Air conditioning units could be replaced with premium high efficiency units with an EER of 11 or higher
Freezer condenser units should be replaced with premium efficiency units
Implement staff training and awareness program. An ongoing training program should be in place to ensure staff follow proper energy management practices such as reminders to turn off the lights.
1. General Information
Facility name and type: Provo Seafood—Industrial
Address: Five Cays, Providenciales
Date: 11/15/10
Contact person (name, phone,
email) Ernest Rigby
Energy Source Primary energy use is electricity.
2. Site Review
The facility is a small building. General operation takes place in the afternoons from noon to 5pm.
Lighting—Lighting is primarily 32WT8 lamps. Exterior lights are mercury vapor lamps.
Air conditioning—There are a few window units serving office spaces.
Refrigeration—The main cooling in the space consists of three condensing units in the back of the building. These units are older and fairly inefficient. They serve the coolers within the building.
Equipment—There is minimal process equipment.
3. Energy saving recommendations
Based on a high level analysis the following are energy efficiency recommendations:
Retrofit the 32W T8 lamps with 25W T8 lamps
Replace incandescent exterior lighting with CFLs
Air conditioning units should be replaced with premium high efficiency units
Freezer condenser units should be replaced with premium efficiency units
Implement staff training and awareness program. An ongoing training program should be in place to ensure staff follow proper energy management practices such as reminders to turn off the lights.
1. General Information
Facility name and type: Beaches Resort—Hotel
Address: Lower Bight Rd., Providenciales
Date: 11/13/10
Contact person Neil Willis
Energy Source Primary energy use is electricity. Propane used for cooking.
Solar for domestic hot water.
2. Site Review
The Beaches Resort is the largest on Providenciales. It consists of three areas with a total of 620 rooms and multiple pools.
Lighting—Lighting throughout the facility undergoes constant upgrading. The rooms are equipped with CFLs, and there is a card reader that enables the lights when the card is inserted. The exterior lighting and restaurant/lobby areas have a mixture of LED and CFL lamps. Some of the back rooms still had T12 lamps with magnetic ballasts.
Air conditioning—Cooling for each of the three areas was provided through a central chiller plant. Each chiller plant was a high efficiency centrifugal chiller. Distribution pumps were equipped with variable frequency drives. The condenser water was cooled by circulating it through the ground well. Each room has an air conditioner with a cooling coil tied into the central cooling system.
Equipment—The facility contains its own RO plant. One of the plants was the original from when the resort was first constructed, and the other was new. Operations staff indicated the new unit used half the energy the old plant did. Pool pumps are equipped with VFDs. The pools are heated in the winter using heat recovered from the chiller. Domestic hot water comes from a central solar hot water heating plant.
Management system—The facility is controlled with a full Building Management System (BMS). The system currently monitors the electricity and water usage in which daily reports are produced and analyzed. It is being upgraded to monitor the gas usage as well. The system monitors the temperatures throughout all the common space and controls the schedule of the air handing equipment. In rooms, the air conditioner is controlled by a programmable thermostat. The programmable thermostat is equipped with an occupancy sensor. There are also door contacts on the patio and main entry doors that will disable the air conditioner if left open. To cool the condenser water, the three areas had HVAC.
Building envelope—Buildings are concrete structures with minimal to no insulation.
3. Energy saving recommendations
This facility is far ahead of most other facilities in the TCI when it comes to energy efficiency and energy management. Based on a high level analysis the following are energy efficiency
recommendations:
Continue lighting retrofit program. There is a corporate lighting program that has been changing out the lights in many areas to install CFLs and LEDs. Some focus could be put on retrofitting the T12 lamps with T8 lamps. We recommend these be replaced with 25W T8 lamps and electronic ballasts
Implement staff training and awareness program. An ongoing training program should be in place to ensure staff follow proper energy management practices.
1. General Information
Facility name and type: La Vista Azul Resort—Hotel
Address: Turtle Cove, Providenciales
Date: 11/09/10
Contact person Norman Chambers
Energy Source Primary energy use is electricity.
2. Site Review
La Vista Azul is a new resort that is still under some construction. It consists of approximately 79 suites and 16 retail units.
Lighting—Lighting within the room consists of incandescent bulbs, mainly 60W. The exterior lighting throughout the resort is CFLs.
Air conditioning—Each room has a small fan coil unit with cooling coil. Cooling equipment was considered standard efficiency equipment.
Water heater—Domestic hot water is provided through an instantaneous electric hot water heater.
Appliances—Each suite is equipped with a full sized refrigerator, dishwasher, stovetop oven,
microwave, television, and washer/dryer. The appliances and HVAC equipment are new. Appliances were not Energy Star rated appliances.
Equipment—There are a couple small pumps serving the pool.
3. Energy saving recommendations
Although the equipment is new the following are energy efficiency recommendations:
Install CFLs in the rooms. (Management staff indicated plans of this)
There are two possibilities for the cooling equipment. The first is to install more efficient
condensing units although savings will be minimal. The second is to install a central cooling plant to serve all of the rooms. This plant would be significantly more efficient, however, this would require significant capital investment
Install Energy Star rated appliances
Energy management initiatives should be put in place engaging staff. There are a number of appliances in each suite, and the suites were set to maintain 78 deg F, even when unoccupied. We suggest the breakers to each room be shut off when they are unoccupied. When a guest is scheduled to be in that room, turn on the breaker in advance of their arrival.
1. General Information
Facility name and type: Gansevoort Resort—Hotel
Address: Grace Bay Beach, Providenciales
Date: 11/13/10
Contact person Bruce Maclaren
Energy Source Primary energy use is electricity. Propane used for cooking
2. Site Review
Gansevoort is a new resort, only a year and a half old. It consists of 52 condo style suites and 7 hotel rooms.
Lighting—Lighting throughout the facility primarily consists of MR16 50W halogen lamps. These can be found in the restaurant and rooms (approximately 22 in a 1 bedroom suite). There are pot lights throughout lobby and restaurant that utilize 40W incandescent lamps on dimmer switches. Lighting in these areas are on a timer and are turned off during the day. There are some LED accent lighting in the lobby and the hallway. Lighting for the suites are CFLs, where every second bulb was removed because the space was over lit. The office area was lit by T8 lamps and a mixture of efficient and inefficient lighting. Lighting in the basement is on all day and consists of T8 fluorescent bulbs. There are card readers in the rooms that disable the lighting when removed.
Air conditioning—Cooling for the facility is provided by a separate split system condensing unit for each suite and space. They are Daikin multi-split inverter units which are designed to provide cooling to multiple fan units in each room. Each room has small fan coil units complete with a fan section and a cooling coil tied in to the split system dedicated to that room. This system is rated with a seasonal energy efficiency ratio of about 13 (COP 3.2) and is considered an efficient unit. There are door sensors that disable the fan if the door is open. Thermostats are programmable, however, they are adjusted to settings to overcool the room. There are problems with the control systems for turning the AC on and off.
Equipment—Pool jet pumps are equipped with VFDs. Consideration is being given to installing a heater for the pool to heat it in the winter.
Water heater—Domestic hot water is provided by an electric hot water tank installed in each suite.
Management System—There is no central Building Management System (BMS). All areas are individually controlled with their own thermostats. Timers are used throughout the facility to control various lighting and HVAC systems.
Building envelope—Buildings are concrete structures with no insulation. Windows are single pane.
3. Energy saving recommendations
Based on a high level analysis the following are energy efficiency recommendations:
Retrofit the 32W T8 lamps with 25W T8 lamps and electronic ballasts.
Retrofit the MR16 halogen lamps with LED fixtures
Air conditioning units can be replaced with a central chiller plant using a centrifugal chiller. The efficiency of this type of system can be double to triple the current air conditioning efficiency. This retrofit requires a major capital expenditure. The chiller plant should be installed in an enclosure and be equipped with a VFD
Consider Solar Hot Water Heating for all domestic hot water use
Solar hot water can be used to preheat laundry water
Replace room thermostats with programmable thermostats complete with occupancy sensor
Implement staff training and awareness program. An ongoing training program should be in place to ensure staff follow proper energy management practices.
1. General Information
Facility name and type: Club Med—Hotel
Address: Grace Bay, Providenciales
Date: 11/13/10
Contact person Francisco (Maintenance Manager)
Energy Source Primary energy use is electricity. Propane used for cooking.
2. Site Review
Club Med is the oldest resort in Providenciales. It maintains a total of 292 rooms. The facility has received its green globe certification.
Lighting—Lighting throughout the facility is a mixture of efficient and inefficient lighting. In the lobby and common areas there are LEDs, CFLs, 40W T12 lamps and 50W MR16 halogen lamps. The rooms are equipped with incandescent bulbs. There is a card reader in the rooms that disables the lighting if the card is removed. Some of the back rooms have T12 lamps with magnetic ballasts.
Air Conditioning—Cooling for the facility is provided by a central chiller plant. The chiller plant is an air cooled chiller that has been sized for twice the capacity that exists. It is currently only operating one of the two compressors. Distribution pumps were equipped with variable frequency drives. Each room