Energy Saving for Hotels

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Energy Saving for Hotels

• Simply Good Business

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About Contained Energy

• Energy Architects Providing Better Energy
  Solutions
• Renewable Energy
• Cleaner Energy
• Cheaper Energy
• Less Energy

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About Contained Energy

• Projects
• Solar Thermal Hot Water Installation at Discovery
  Kartika Plaza (400 m2, 600-700 kWh/day)
• Heat Pump Installations, Laundry Steam Generator
  and Steam System Renovation for Sofitel Seminyak
  Hotel
• Heat Pump Installation for Sofitel Villas
• Heat Pump Installations and Laundry Steam
  Generator for Aston Benoa (in progress)
• Complete energy/water systems for remote resorts
• 100 kW solar systems for 18 clinics and schools
  on 12 Micronesia Islands
• Numerous Solar/Wind Installations for schools,
  small houses, clinics in Aceh, Yogya, Bangka, NTT
• Solar Ice-Maker for Marathon Oil CSR Project
• Security Lighting for Mines, Factories
• Solar Systems for Villas in Bali, including first
  100 off-grid villa in Bali

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Overview

• In General
• Motivations for Energy Saving
• Measuring, monitoring, analyzing, communicating
• Energy Saving Opportunities
• Lights
• Rooms AC
• Refrigeration Chillers
• Motors
• Hot water
• Solar Water Heating
• Heat Pumps
• Transportation

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In General Motivations

• Motivations may vary
• Saving money?
• Saving the planet?
• Looking green?
• Actually, the most valid motivation is improving
  the business research shows companies with good
  energy policies simply do better overall, very
  much like companies that have good HRD policies
  simply do better.
• This is an important and universal truth!

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In General Approaches

• Energy saving is an attitude that pervades
  through ALL levels of operations and involves all
  levels of management, staff, guests, even
  suppliers, all the time
• There is no one-single-solution or magic wand. It
  involves awareness, willingness, understanding,
  motivation, communication and rewards
• It pays to have a champion of energy saving who
  constantly motivates and reminds people,
  researches opportunities and communicates
  results.
• Make it live Measure and express in Carbon
  Emissions Prevented or even Trees Planted

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In General Starting

• Chillers
• Room lights
• Public area lights
• Fridges
• Kitchens
• Pumps
• Hot Water
• Garden lights
• Transportation

• Energy saving starts with measuring and
  collecting data on current energy usage and
  costs, to establish the base-line against which
  improvements and savings are measured and
  maintained

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Some Literature

• Guidebook on Energy Efficiency for Hotels in
  Indonesia (Pelangi)
• Saving Energy Dollars for Hotels (Canada)
• Boosting Restaurant Profits with Energy
  Efficiency (USA)
• Making permanent savings through Active Energy
  Efficiency (Schneider)

(available on request)
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Measuring and Monitoring

• Starts with a walk-through to design a formal
  audit
• Determine energy user groups
• Count lights, ACs motors, pumps, chillers,
  fridges, etc.
• Determine measuring points and monitoring methods
• Report and recommendations, INCLUDING
  communication strategies

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Measuring and Monitoring

• Good systems available with easy-to-install
  (wireless) sensors, linking to central
  dashboard

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Energy Saving Opportunities

• Lighting
• Room ACs
• Refrigeration
• Motors and Pumps
• Hot Water
• Transportation

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Saving Energy on Lighting

• LED Lights
• CFL Lights
• 50-80 Savings

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Saving Energy on Lighting
Saving Energy on normal fluorescent lights in
offices, kitchens, back-of-house Starts the
lights at full power, then dials back to
70 Can save up to 30
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Saving Energy on Lighting

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

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Room AC Controls

• Controls AC fan-coil based on occupancy of room
• Senses occupancy
• Senses open doors
• Wireless, installs in 20 minutes per room
• 25-40 savings possible
• No disruption of guest comfort
• Bit more sophisticated than Ving key card, but
  same principle

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Energy Eye AC Controls
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Energy Eye Energy Savings
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FB Refrigeration

• Refrigeration
• Variable Speed Compressors (inverter-type)
• Retrofit Motor Controllers
• Use food simulation thermostat
• Thermal Energy Storage to avoid peak hours, with
  Phase Change Materials (1 m3 of this materials
  can store 50 kWh cooling)
• Cases with 45 savings reported

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Thermal Energy Storage

• Stores cooling produced in off-peak hours for
  use during peak hours
• Small from room fridges to walk-in freezers
• Big From 45 to 500 TonHours cooling per module
  for chiller systems

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Motors for Pumps, Lifts, etc.

• Variable Speed (or Frequency) Drives adjust the
  amount of energy send to the motor according to
  the actual load
• Most suited for motors with variable loads
• 10-20 energy reductionspossible

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Hot Water Solar Heat

• FREE energy from the sun
• Return-on-Investment can be as low as 24 months

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Hot Water Heat Pumps

• Basically a reversed chiller, a Heat Pump
  harvests and concentrates heat from ambient
  air (or from water) into hot water
• 1 kWh electrical energy input produces 3-4 kWh
  thermal energy output PLUS 2-3 kWh of cooling,
  giving a COP of up to 7 if the cooling effect can
  be used.
• Return-on-Investment can be as low as 18 months

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Hot Water Heat Pumps
Heat Pumps are renewable energy machines and are
considered clean energy. They use electricity
but very little and they save a LOT of money on
dirty fuel Simple retrofits
HEAT PUMPS CAN ALSO EXTRACT HEAT FROM CHILLER
RETURN LINES OR COOLING TOWER CIRCUIT TO SAVE
ENERGY ON THE CHILLERS!
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Transportation

• Staff transportation counts
• Guest transportation counts
• Supplies transportation counts
• Think
• Bus Pooling (using recycled vegetable oil?)
• Electrical motor bikes (solar charged?)
• Electrical cars and busses (solar charged?)

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Notes

• Contained Energy is initiating a waste vegetable
  oil recycling program. We will collect your
  waste oil and either supply bio-diesel back, or
  pay you for the liters supplied. We will
  guarantee proper processing.
• We are also initiating a solar electric bike
  lease/purchase program, for your staff (-rewards)
  and for rental to your guests.

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A bit of perspective

• (4/26/2010) Beritabali.com reports that the
  provincial government of Bali will soon require
  tourism enterprises to draw at least 10 of their
  energy requirements from alternative sources.
  Included among alternative energy sources are
  solar power, wind power and water power.The new
  rules requiring tourism companies to source
  alternative power supplies will form part of a
  forthcoming decree by Bali's governor.The new
  regulations are expected to be introduced in 2011
  as part of Bali's commitment to create a "green
  island" that preserves and protects the
  environment.

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• If, or when, this transition will start taking
  place, applying 10 Renewable Energy will be much
  easier and less costly if energy usage is known,
  understood and minimized Be prepared!

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Summary

• Measure, monitor, audit, analyze.
• Many possibilities and opportunities to save
  energy, some with excellent return-on-investment
• Each hotel will be different and different
  solutions will apply
• Transitions HAVE to be made
• Talk to the Energy Architects..

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• Thank You
• Pieter de Vries
• Contained Energy Bali
• www.containedenergy.com
• info_at_containedenergy.com
• 0361 777161
• 0361 7805142