Energy Efficient Solutions CES Energy Group Overview

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1 Energy Efficient Solutions

2 Mission Statement To deliver high efficiency on-site power generation solutions, to supply energy efficient products/services and to provide substantial financial and CO 2 savings to our customers

3 Company Information HISTORY: Established in 1998, with operations in Ireland, Europe and Australia PEOPLE: Experienced management team, engineers, administration staff, and maintenance technicians IN-HOUSE DESIGN: Engineering design team; AutoCAD capabilities; PI cover INSTALL & COMMISSION: Fully trained team with M&E expertise to deliver solution from design to handover AFTER-SALES: 365/24/7 in-house control and monitoring systems QUALITY & ENVIRONMENTAL: Currently implementing systems for ISO Accreditation. Established relationships and OEM status with industry leading suppliers PROVEN: Over 10 years experience in delivery of complex projects in HVAC, CHP/Tri- Generation, and District Heating applications Social Responsibility: Power to Change Current focus is on Haiti & East Timor

Group Activity Middle East: Office in Jeddah to target the MENA region IRL: HVAC, CHP, Tri-Generation and on site Energy Systems for AIB, Boston Scientific, Citi, A&L Goodbody, Data Electronics JTI

4 Group Activity Middle East: Office in Jeddah to target the MENA region IRL: HVAC, CHP, Tri-Generation and on site Energy Systems for AIB, Boston Scientific, Citi, A&L Goodbody, Data Electronics JTI plc, Hilton Hotel, IBM. UK: CHP, District Heating, Cooling and on site Energy Systems: 2012 Olympics Sentrum Data Centres, INIS Stratford, Ardmore Oval Road, IBM, Australia: Offices in Sydney and Melbourne. Multiple On Site Energy Centres in large buildings, Mirvac, Sydney University, Corporate Express, Miller Street...

5 Overview CHP & Trigeneration Energy efficient products/solutions Our Partners

6 The CHP Process 100% Prime Energy Losses from Transmission and Conversion Usable Energy Efficiency Ratio 35% -65% -10% + 90% up to Local Cogeneration Plant

1/1 Uses for heat: Water @ up to 90 C for space heating or hot water demand Steam for

7 Gas Engine CHP Sizes from 100 kwe 4MWe Heat from engine cooling water ( 90 C) + heat from hot exhaust gases ( 400 C) harnessed Heat/Power Ratio 1.1/1 Uses for heat: up to 90 C for space heating or hot water demand Steam for Industrial Process Exhaust gas CO 2 generation Absorption Chilling Low temperature demand, i.e. for underfloor heating, swimming pool etc.

8 Natural Gas Fired CHP Unit Fully containerised, factory built and tested

9 Biomass CHP Biomass CHP is the use of a biomass fuel to simultaneously generate both electricity and useful heat in a renewable process

Biomass CHP CES Energy offers biomass CHP solutions for large industrial i sites Biomass fuel can be woodchip from forestry or energy crops (miscanthus, willow etc) System electrical outputs from 500

10 Biomass CHP CES Energy offers biomass CHP solutions for large industrial i sites Biomass fuel can be woodchip from forestry or energy crops (miscanthus, willow etc) System electrical outputs from 500 kw e 5 MW e Full heat recovery giving hot water/steam Heat:Power ratio > 3:1 CES Energy has established relationships with industry leading suppliers worldwide Biomass CHP solutions offer zero carbon alternative to conventional fuels (gas/oil etc)

11 What is Tri-generation? Tri-generation is the simultaneous generation of the 3 primary energy requirements for a building from a single fuel input. Electricity Heat Cooling This plant consists of these primary components: CHP plant Absorption chiller Distribution system Control system Heat dissipation equipment

12 Absorption Chiller Dual fired with diesel burner back-up Jacket Water In/Out Cooling Water Outlet Engine Exhaust Outlet Engine Exhaust Inlet Chilled Water Outlet Fuel Exhaust Chilled Water Inlet GAS Inlet (Auxiliary firing)

13 Why Tri-generation? Tri-Generation offers a use for waste heat on a site when there is no heat demand Below is a load profile of a typical commercial building showing high summer cooling demand Load (kw) ELECTRICAL CHILLING HEATING 0 jan feb mar apr may Month jun jul aug sep oct nov dec

14 Case Studies 101 Miller Street, Sydney y Plant Capacities Peak Electrical: 2,332kW Peak Cooling: 1,500kW Benefits to client Energy cost savings: 10% CO 2 saving: 10,000 tonnes p.a.

15 Case Studies CES Energy Boston Scientific Solution Plant Capacities Peak Electrical: 1, kw Peak Heating: 1,260 kw CES Energy responsible for: Supply and Install of containerised CHP Solution Commissioning and start-up of 1no 1 MW e CHP engines All maintenance and operation of CHP

Case Studies CES Energy A&L Goodbody Solution Plant Capacities

1,272kW CES Energy responsible for: System redesign and

Commissioning and startup of 1no 445 kw th Absorption chiller

16 Case Studies CES Energy A&L Goodbody Solution Plant Capacities Peak Electrical: 1,006kW Peak Cooling: 445kW Peak Heating: 1,272kW CES Energy responsible for: System redesign and financing Commissioning and startup of 1no 1 MW e CHP engine Commissioning and startup of 1no 445 kw th Absorption chiller All maintenance and operation of Tri- Generation system ESCo type agreement signed 2004

17 Back-Office Site Monitoring CES Energy Site Status

18 Site Monitoring

19 Back-Office Control: P&ID

20 Weiss High Efficiency CRAC Units

21 ENERGY EFFICIENT COOLING OF DATA CENTERS

22 Environment aspects Approx data centers are located in Germany. The current consumption is 8,67 Terawatts per year, discharging 5,6 million tons CO 2. In 2010 the discharge will be 8,3 million tons. The worldwide CO 2-discharge of the data centers is approx. 62 million tons. (source: Sustainable Partner GmbH) Prognosis: The global l power demand d of all data centers worldwide raises up about 40 % until (source: Jonathan Koomey/IDC) Is IT the new climate killer?

Key figures Key figures for evaluation of the data center efficiency Power Usage Effectiveness PUE = TFP (Total Facility Power) IEP (IT Equipment Power) DCE = 1 PUE Site Infrastructure Energy

23 Key figures Key figures for evaluation of the data center efficiency Power Usage Effectiveness PUE = TFP (Total Facility Power) IEP (IT Equipment Power) DCE = 1 PUE Site Infrastructure Energy Efficiency Ratio Total Facility Power IT-PEW SI-EER = IT Equipment Power (IT-Production per embedded Watt) Data Center Energy Efficiency and Production Index (DC-EEP) DC-EEP = SI-EER x IT-PEW

24 Why is energy efficiency so important? Energy streams inside the data center POWER IN = HEAT OUT

25 Traditional airconditioning systems

26 deltaclima deltaclima DX-ESC 40%

27 High Efficiency, Innovative CRAC Units deltaclima Heat exchanger extensive Cu/Al-heat exchanger with hydrophyle y lamella coating Filter extensive cassette filter F5, installed directly on the cooler easy yfilter exchange from the front Condensate drain Inspection openings for cleaning of the condensate drain Aluminium vessel can be removed Interior view

28 Energy-saving airconditioning systems Common technology Raised floor assembly loss bad fans efficiency small distance to the housing (<1,5*D) high overpressure on pressure side Bare floor unused space additional deflection losses

29 Energy-saving g airconditioning systems New technology Extended coil surface Extended filter surface (+ΔA) (+ΔA) Reduced internal pressure losses (-Δp INT ) Reduced power consumption (-ΔP W ) Δ clima deltaclima Raised floor Bare floor

30 Efficiency in comparison with competitors lower energy consumption Spec. Cooling Capacity Fan power [kw/m²] [kw] higher cooling capacity lower space requirement

31 teleclima Energy-saving with DIRECT FREE COOLING DIN 4710, outside air temperatures (Kassel) - during approx hours per year <15 C -during approx hours per year <16 C - during approx hours per year <17 C (85 %) Requirements: Outside wall is positive No OXY REDUCT Bigger range of humidity (20 80 % r.h.) No outside installation is necessary: Chiller, condensers or piping system

32 Direct Free Cooling

33 Direct Free Cooling

34 Energy-saving airconditioning systems Energy-saving with DIRECT FREE COOLING Data center for automotive industry, Germany kw

35 Energy efficiency is important! energy consumption airconditioning datacenter MWh Weiss Teleclima NEDC2 MWh 1270 m² "Traditional Cooling" NEDC1 MWh 1270 m² Januarar Februar März April Mai Juni Juli August September Oktober Nove mber Dezember ,--/year ,--/year

36 Kältetechnik Physikalische Vorteile der Multi-Kompressortechnik Verdampfer Kondensator Kälteleistungsstufen: 0% - 50% - 80% - 100%

37 Reference Data: Room: 24 C - 50% RH Outside air Temperature: 35 C Condensation Temperature: 50 C Compressor 1 Compressor 2 Compressor 3 Total Cooling Input Cooling Input Cooling Input Cooling Input Capacity power Capacity power Capacity power Capacity power COP kw kw kw kw kw kw kw kw kw/kw 1 st Stage (50%) 27,2 3, ,2 3,7 7,4 2 nd Stage (80%) 21,4 4,5 21,4 4, ,8 9 4,8 3 rd Stage (100%) 17,7 5,2 17,7 5,2 17,7 5, ,6 3,4

38 Kältetechnik Carnot Cycle P 3 2 Tc P 3 I Tc I 2 I 4 Te 1 H Te 4 I I 1 I H T c Kondensationstemperatur [ C] T e Verdampfungstemperatur [ C]

39 Kältetechnik A Verdampfer B Verdampfer X X Kondensator Kondensator Kondensationstemperatur COP A B Verdampfungstemperatur

40 Mechanical cooling systems

41 Standard Chillers R22 Phase Out, may represent a opportunity Typically 6 to 8 these chillers have a COP=1.4 to Newer chillers operating on R134a will be operating with a COP of 3.2 to 3.6

42 Chiller Replacement Proposal Typical 1000kw chiller Chiller Capacity COP Run Hours kwh Cost Per kwh Running Cost Existing ,800 New Chiller ,125 Chiller Mech, Elec & Site Works Finance Years Capital Cost 103, , ,524 Energy Savings 180,675 Reactive Maintenance 7,000 Maintenance 5,000 Total - 118,151

43 Free Cooling Chillers Indirect free cooling Twin or triple compressor technique Design with maximum free cooling capacity Small floor space due to double heat exchangers

44 Free Cooling Chillers To maximise the efficiency of these chillers they are best operated at flow and return Temperatures of 8 C and 14 C From Met Eireann Data the Temperature in Dublin is at or below 6 C C for 24% of the year (Free Cooling) The etemperature peatuein Dublin is sato or below beo 12 C C for 67% of the year (Part Cooling)

45 Free Cooling Chillers Chiller Capacity COP Run Hours kwh Cost Per kwh Running Cost Existing ,800 Free Cooling 24% Part Cooling 43% ,020 Electrical Cooling 33% ,477 Saving 310,303 Chiller Mech, Elec & Site Works Finance Years Capital Cost 134, , , Energy Savings 310,303 Reactive Maintenance 7,000 Maintenance 5,000 Total - 237,422

46 Dry Coolers The same effect of the Free Cooling Chillers can be achieved on existing installations by installing a Dry cooler in parallel with the chiller The dry coolers work on the same principal of cooling the return fluid temperature to the flow temperature or as close to it as possible A bypass valve allows the fluid to flow directly into the chiller when the ambient temperature will not aid cooling The plant will however take up space which may not be available

47 Dry Coolers Free or part cooling when ambient air below 12 C 14 C 8 C

CES Energy Partners CES Energy has formed alliances with a number of strategic partners Worldwide turnover of 20 billion and over 400,000 employees Turnover of 1 billion and over 1,000 professionals

48 CES Energy Partners CES Energy has formed alliances with a number of strategic partners Worldwide turnover of 20 billion and over 400,000 employees Turnover of 1 billion and over 1,000 professionals skilled in all aspects of project execution and delivery. Responsible for the construction and commissioning of circa 2,000MW power stations in Ireland and UK State owned company, owns 7% of the land cover of Ireland Turnover 250m, over 1,200 employees Top 50 ASX listed company involved in gas and oil exploration and production, power generation and energy retailing 140-year history, Almost 4000 employees and more than 3 million customers in Australia, New Zealand and the Pacific German/Austrian market leader in district heating solutions, manufacturing base in East Germany

49 THANK YOU

Gas Power Systems Energy Efficient CHP Solutions for Commercial and Large-scale Residential Buildings

Gas Power Systems Energy Efficient CHP Solutions for Commercial and Large-scale Residential Buildings Los Angeles, 2009 March 10 John Ferraro Building Stefan Kohler - MTU Onsite Energy GmbH Page 2 / 3/16/2009