energy saving for hotels iii

8/2/2019 Energy Saving for Hotels III

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Energy Saving for HotelsEnergy Saving for Hotels

‘ ‘Simply Good Business’ Simply Good Business’



About Contained Energy About Contained Energy

• Energy Architects: Providing BetterEnergy Architects: Providing Better

Energy SolutionsEnergy Solutions

• Renewable EnergyRenewable Energy

• Cleaner EnergyCleaner Energy

• Cheaper EnergyCheaper Energy

• Less EnergyLess Energy



About Contained Energy About Contained Energy

• Projects:Projects:

• Solar Thermal Hot Water Installation at Discovery Kartika Plaza (400 m2, 600-Solar Thermal Hot Water Installation at Discovery Kartika Plaza (400 m2, 600-700 kWh/day)700 kWh/day)

• Heat Pump Installations, Laundry Steam Generator and Steam SystemHeat Pump Installations, Laundry Steam Generator and Steam SystemRenovation for Sofitel Seminyak HotelRenovation for Sofitel Seminyak Hotel

• Heat Pump Installation for Sofitel VillasHeat Pump Installation for Sofitel Villas

• Heat Pump Installations and Laundry Steam Generator for Aston Benoa (inHeat Pump Installations and Laundry Steam Generator for Aston Benoa (inprogress)progress)

• Complete energy/water systems for remote resortsComplete energy/water systems for remote resorts

• 100 kW solar systems for 18 clinics and schools on 12 Micronesia Islands100 kW solar systems for 18 clinics and schools on 12 Micronesia Islands

• Numerous Solar/Wind Installations for schools, small houses, clinics in Aceh,Numerous Solar/Wind Installations for schools, small houses, clinics in Aceh, Yogya, Bangka, NTT Yogya, Bangka, NTT

• Solar Ice-Maker for Marathon Oil CSR ProjectSolar Ice-Maker for Marathon Oil CSR Project

• Security Lighting for Mines, FactoriesSecurity Lighting for Mines, Factories

• Solar Systems for Villas in Bali, including first 100% off-grid villa in BaliSolar Systems for Villas in Bali, including first 100% off-grid villa in Bali



OverviewOverview

• In General:In General: – Motivations for Energy SavingMotivations for Energy Saving – Measuring, monitoring, analyzing, communicatingMeasuring, monitoring, analyzing, communicating

• Energy Saving OpportunitiesEnergy Saving Opportunities – LightsLights – Rooms ACRooms AC – Refrigeration & ChillersRefrigeration & Chillers

– MotorsMotors – Hot waterHot water

• Solar Water HeatingSolar Water Heating

• Heat PumpsHeat Pumps

– TransportationTransportation



In General: MotivationsIn General: Motivations

• Motivations may vary:Motivations may vary: – Saving money?Saving money?

– Saving the planet?Saving the planet?

– Looking ‘green’?Looking ‘green’?

• Actually, the most valid motivation is ‘improving the Actually, the most valid motivation is ‘improving thebusiness’: research shows companies with good energybusiness’: research shows companies with good energypolicies simply do better overall, very much likepolicies simply do better overall, very much like

companies that have good HRD policies simply do better.companies that have good HRD policies simply do better.

• This is an important and universal truth!This is an imp

ortant and universal truth!



In General: ApproachesIn General: Approaches

• Energy saving is an attitude that pervades through ALLEnergy saving is an attitude that pervades through ALLlevels of operations and involves all levels of levels of operations and involves all levels of management, staff, guests, even suppliers, all the timemanagement, staff, guests, even suppliers, all the time

•There is no one-single-solution or magic wand. It involvesThere is no one-single-solution or magic wand. It involvesawareness, willingness, understanding, motivation,awareness, willingness, understanding, motivation,communication and rewardscommunication and rewards

• It pays to have a ‘champion’ of energy saving whoIt pays to have a ‘champion’ of energy saving whoconstantly motivates and reminds people, researchesconstantly motivates and reminds people, researches

opportunities and communicates results.opportunities and communicates results.

• Make it live: Measure and express in ‘Carbon EmissionsMake it live: Measure and express in ‘Carbon EmissionsPrevented’ or even ‘Trees Planted’ Prevented’ or even ‘Trees Planted’



In General: StartingIn General: Starting

• Energy saving starts withEnergy saving starts with

measuring and collectingmeasuring and collecting

data on current energydata on current energyusage and costs, tousage and costs, to

establish the base-lineestablish the base-line

against whichagainst which

improvements andimprovements andsavings are measured…savings are measured…

and maintained…and maintained…

Chillers

Room lights

Public area lights

Fridges

Kitchens

Pumps

Hot Water

Garden lights

Transportation



Some LiteratureSome Literature

• Guidebook on Energy Efficiency for Hotels in Indonesia (Pelangi)Guidebook on Energy Efficiency for Hotels in Indonesia (Pelangi)

• Saving Energy Dollars for Hotels (Canada)Saving Energy Dollars for Hotels (Canada)

• Boosting Restaurant Profits with Energy Efficiency (USA)Boosting Restaurant Profits with Energy Efficiency (USA)

• Making permanent savings through Active Energy Efficiency (Schneider)Making permanent savings through Active Energy Efficiency (Schneider)

(available on request)



Measuring and MonitoringMeasuring and Monitoring

• Starts with a walk-through to ‘design’ a formalStarts with a walk-through to ‘design’ a formal

audit:audit:

– Determine energy user groupsDetermine energy user groups

– Count lights, AC’s motors, pumps, chillers, fridges, etc.Count lights, AC’s motors, pumps, chillers, fridges, etc.

– Determine measuring points and monitoring methodsDetermine measuring points and monitoring methods

– Report and recommendations, INCLUDINGReport and recommendations, INCLUDINGcommunication strategiescommunication strategies



Measuring and MonitoringMeasuring and Monitoring

• Good systems available with easy-to-Good systems available with easy-to-

install (wireless) sensors, linking to centralinstall (wireless) sensors, linking to central

‘dashboard’ ‘dashboard’



Energy Saving OpportunitiesEnergy Saving Opportunities

• LightingLighting

• Room AC’sRoom AC’s

• RefrigerationRefrigeration

• Motors and PumpsMotors and Pumps

•Hot WaterHot Water

• TransportationTransportation



Saving Energy on LightingSaving Energy on Lighting

• LED LightsLED Lights

• CFL LightsCFL Lights

• 50-80% Savings50-80% Savings



Saving Energy on LightingSaving Energy on LightingSaving Energy on ‘normal’ Saving Energy on ‘normal’ fluorescent lights in offices,fluorescent lights in offices,

kitchens, back-of-house…kitchens, back-of-house…

Starts the lights at fullStarts the lights at full

power, then ‘dials back’ topower, then ‘dials back’ to70%70%

Can save up to 30%Can save up to 30%



Saving Energy on LightingSaving Energy on Lighting

• Use energy-efficient “T5” fluorescent tubes in standard “T8” fixturesUse energy-efficient “T5” fluorescent tubes in standard “T8” fixtures• Saves up to 47%Saves up to 47%



Room AC ControlsRoom AC Controls

• Controls AC fan-coil based on occupancy of roomControls AC fan-coil based on occupancy of room

• Senses occupancySenses occupancy

• Senses open doorsSenses open doors• Wireless, installs in 20 minutes per roomWireless, installs in 20 minutes per room

• 25-40% savings possible25-40% savings possible

• No disruption of guest comfortNo disruption of guest comfort

• Bit more sophisticated than ‘Ving’ key card, butBit more sophisticated than ‘Ving’ key card, butsame principlesame principle



“ “Energy Eye” AC ControlsEnergy Eye” AC Controls



“ “Energy Eye” Energy SavingsEnergy Eye” Energy Savings



F&B RefrigerationF&B Refrigeration

• RefrigerationRefrigeration – Variable Speed Compressors (inverter-type) Variable Speed Compressors (inverter-type)

– Retrofit Motor ControllersRetrofit Motor Controllers – Use ‘food simulation’ thermostatUse ‘food simulation’ thermostat

– Thermal Energy Storage to avoid peak hours,Thermal Energy Storage to avoid peak hours,with Phase Change Materials (1 m3 of thiswith Phase Change Materials (1 m3 of this

materials can store 50 kWh ‘cooling’)materials can store 50 kWh ‘cooling’)

– Cases with 45% savings reportedCases with 45% savings reported



Thermal Energy StorageThermal Energy Storage

• Stores ‘cooling’ produced in off-peak hours forStores ‘cooling’ produced in off-peak hours foruse during peak hoursuse during peak hours

• Small: from room fridges to walk-in freezersSmall: from room fridges to walk-in freezers

• Big: From 45 to 500 “TonHours” cooling perBig: From 45 to 500 “TonHours” cooling permodule for chiller systemsmodule for chiller systems



Motors for Pumps, Lifts, etc.Motors for Pumps, Lifts, etc.

• Variable Speed (or Frequency) Drives Variable Speed (or Frequency) Drives

adjust the amount of energy send to theadjust the amount of energy send to the

motor according to the actual loadmotor according to the actual load• Most suited for motorsMost suited for motors

with variable loadswith variable loads

• 10-20% energy reductions10-20% energy reductionspossiblepossible



Hot Water: Solar HeatHot Water: Solar Heat

• FREE energy from the sunFREE energy from the sun

• Return-on-Investment can be as low as 24Return-on-Investment can be as low as 24monthsmonths



Hot Water: Heat PumpsHot Water: Heat Pumps

• Basically a ‘reversed’ chiller, a Heat PumpBasically a ‘reversed’ chiller, a Heat Pump

“harvests” and “concentrates” heat from ambient “harvests” and “concentrates” heat from ambient

air (or from water) into hot waterair (or from water) into hot water

• 1 kWh electrical energy input produces 3-4 kWh1 kWh electrical energy input produces 3-4 kWh

thermal energy output PLUS 2-3 kWh of cooling,thermal energy output PLUS 2-3 kWh of cooling,

giving a COP of up to 7 if the cooling effect cangiving a COP of up to 7 if the cooling effect can

be used.be used.• Return-on-Investment can be as low as 18Return-on-Investment can be as low as 18

monthsmonths



Hot Water: Heat PumpsHot Water: Heat PumpsHeat Pumps areHeat Pumps arerenewable energyrenewable energy

machines and aremachines and are

considered ‘clean’ energy.considered ‘clean’ energy.

They use electricity butThey use electricity butvery little and they save avery little and they save a

LOT of money on ‘dirty’ LOT of money on ‘dirty’

fuelfuel

Simple retrofitsSimple retrofits

HEAT PUMPS CAN ALSO EXTRACT HEAT FROM CHILLER HEAT PUMPS CAN ALSO EXTRACT HEAT FROM CHILLER

RETURN LINES OR COOLING TOWER CIRCUIT TO SAVERETURN LINES OR COOLING TOWER CIRCUIT TO SAVE

ENERGY ON THE CHILLERS!ENERGY ON THE CHILLERS!



TransportationTransportation

• Staff transportation countsStaff transportation counts

• Guest transportation countsGuest transportation counts

• Supplies transportation countsSupplies transportation counts

• Think:Think:

– Bus Pooling (using recycled vegetable oil?)Bus Pooling (using recycled vegetable oil?)

– Electrical motor bikes (solar charged?)Electrical motor bikes (solar charged?)

– Electrical cars and busses (solar charged?)Electrical cars and busses (solar charged?)



Notes:Notes:

• Contained Energy is initiating a ‘waste vegetableContained Energy is initiating a ‘waste vegetable

oil’ recycling program. We will collect your wasteoil’ recycling program. We will collect your waste

oil and either supply bio-diesel back, or pay youoil and either supply bio-diesel back, or pay you

for the liters supplied. We will guarantee properfor the liters supplied. We will guarantee proper

processing.processing.

• We are also initiating a ‘solar electric bike’ We are also initiating a ‘solar electric bike’ lease/purchase program, for your staff (-lease/purchase program, for your staff (-

rewards) and for rental to your guests.rewards) and for rental to your guests.



A bit of perspective: A bit of perspective:

• (4/26/2010) Beritabali.com reports that the provincial(4/26/2010) Beritabali.com reports that the provincialgovernment of Bali will soon require tourism enterprisesgovernment of Bali will soon require tourism enterprisesto draw at least 10% of their energy requirements fromto draw at least 10% of their energy requirements fromalternative sources. Included among alternative energyalternative sources. Included among alternative energy

sources are solar power, wind power and water power.sources are solar power, wind power and water power.

The new rules requiring tourism companies to sourceThe new rules requiring tourism companies to sourcealternative power supplies will form part of a forthcomingalternative power supplies will form part of a forthcomingdecree by Bali's governor.decree by Bali's governor.

The new regulations are expected to be introduced inThe new regulations are expected to be introduced in2011 as part of Bali's commitment to create a "green2011 as part of Bali's commitment to create a "greenisland" that preserves and protects the environment.island" that preserves and protects the environment.



• If, or when, this transition will start takingIf, or when, this transition will start taking

place, applying 10% Renewable Energyplace, applying 10% Renewable Energy

will be much easier and less costly if will be much easier and less costly if energy usage is known, understood andenergy usage is known, understood and

minimized…minimized…

Be prepared!Be prepared!



SummarySummary

• Measure, monitor, audit, analyze….Measure, monitor, audit, analyze….

• Many possibilities and opportunities toMany possibilities and opportunities to

save energy, some with excellent return-save energy, some with excellent return-on-investmenton-investment

• Each hotel will be different and differentEach hotel will be different and differentsolutions will applysolutions will apply

• Transitions HAVE to be madeTransitions HAVE to be made

• Talk to the ‘Energy Architects’…..Talk to the ‘Energy Architects’…..



Thank YouThank You

Pieter de VriesPieter de Vries

Contained Energy Baliontained Energy Bali

www.containedenergy.comwww.containedenergy.com

[email protected]@containedenergy.com 0361 7771610361 777161

0361 78051420361 7805142

http://www.containedenergy.com/


mailto:[email protected]





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