This document provides an overview of an energy performance contracting project undertaken by Dublin Port Company to upgrade the boiler house and ventilation controls at their Port Centre building. Key points: - The project involved installing new high-efficiency gas boilers and micro-CHP unit with buffer vessel for the boiler house, and installing BMS controls for the variable air volume boxes in offices. - The projects were delivered through an energy performance related payment model where contractors guaranteed 15% energy savings for the boiler upgrade and targets for the ventilation controls. - Measurement and verification found the projects significantly exceeded guaranteed savings, with the boiler upgrade achieving 26.7% savings and ventilation controls achieving 52.9% savings after 6 months.

1. Dublin Port CompanyDublin Port Company
LimitedLimited
Codema
Energy Performance Contracting
Information Seminar
October 2015
Ciarán Callan

2. PresentationPresentation
Overview of Dublin PortOverview of Dublin Port
Environmental and Sustainable credentialsEnvironmental and Sustainable credentials
Port Centre project with EPRPPort Centre project with EPRP

4. Dublin Port CompanyDublin Port Company
Limited company formed under TheLimited company formed under The
Harbours Act 1996 replacing the DublinHarbours Act 1996 replacing the Dublin
Port and Docks Board – 100 % shareholderPort and Docks Board – 100 % shareholder
is the Minister for Transportis the Minister for Transport
Trade facilitatorTrade facilitator
80% of Ireland’s GDP is exported- 43%80% of Ireland’s GDP is exported- 43%
through Dublin Portthrough Dublin Port

5. Growing with the EconomyGrowing with the Economy
 YTD Throughput (Sept)YTD Throughput (Sept)
 24.4 m tonnes up 5.8%24.4 m tonnes up 5.8%
 Trade cars 70,483 up 20.7%Trade cars 70,483 up 20.7%
 Tourists Vehicles 398,985Tourists Vehicles 398,985
up 10%up 10%
 Ferry passengers 1,254,000Ferry passengers 1,254,000
up 6.3%up 6.3%
 2015 Record year est 32.52015 Record year est 32.5
m tonnes +m tonnes +

6. Throughput by Mode (Tonnes)Throughput by Mode (Tonnes)
YTD %
RoRo 65
LoLo 18
Bulk Liquid 12
Bulk Solid 5

7. Dublin PortDublin Port

10. Dublin PortDublin Port

12. Environmental andEnvironmental and
Sustainable credentialsSustainable credentials
EcoPorts PERS since 2008EcoPorts PERS since 2008
C40 Ports commitment 2008C40 Ports commitment 2008
ISO 14001 since 2008ISO 14001 since 2008
Finalist SEAI 2011Energy awardsFinalist SEAI 2011Energy awards
ESPO Port Green Code major inputESPO Port Green Code major input
SEAI Partnership programmeSEAI Partnership programme
2015 SEAI BEC Communities2015 SEAI BEC Communities
Working towards ISO 50001Working towards ISO 50001

14. Port Centre ProjectPort Centre Project
Built 1981 4,400 m2Built 1981 4,400 m2

15. Port Centre ProjectPort Centre Project
Boiler House Refurbishment
The boiler house refurbishment involved the removal of 2 oil-fired combi-boilers, LTHW pumps and
pipework, MCC and controls panel and associated pneumatics.
The upgrade included the installation of 2 x 286 kW modulating and condensing gas-fired boilers; 4.5
kWe, 12.5 kWth microChp with condenser module and 1500 litre buffer vessel; LTHW pumps,
pipework, valves and commissioning sets with lagging; DHW calorifier; new MCC and controls panel;
extensive electricity, gas and heat metering; ancillary equipment.
Advanced control strategies were developed to maximise boiler efficiency using direct modulation
and weather compensation. Using advanced control also allowed for the CHP to be used as lead heat
generator, then charging the buffer vessels when there is no heat load, then discharging the buffer
vessel when the heating is first started in the morning, while avoiding charging of the buffer vessel
during the day. The CHP (and boilers if required) are used to maintain domestic hot water at
temperature when there is no space heating load, while avoiding wasteful cycling or heat loss into
the space heating circuits.

16. Port Centre ProjectPort Centre Project

17. Port Centre ProjectPort Centre Project
Ventilation Controls Retrofit
The ventilation controls retrofit included the removal of pneumatic controls for the Variable Air
Volume {VAV) boxes in offices, and installation of BMS control units and electro actuators on the
VAV boxes and room temperature sensors. Whereas before office temperature control was erratic,
each office is now monitored and controlled via the BMS, and the temperature control of the main
AHU can be harmonised with the requirements of the offices.

18. Port Centre ProjectPort Centre Project

19. Port Centre ProjectPort Centre Project
Energy Performance Contracting Element
The project was delivered through an Energy Performance Related Payment (EPRP) model.
For the boiler house refurbishment the standard NEC3 Engineering & Construction Contract
was used but modified so that, the consultant and the main contractor each guaranteed
separately to the client that the project would achieve a 15% energy-efficiency
improvement in fossil fuel use. If this guarantee was not achieved, each would lose 7.5% of
their respective contract values. To avoid excessive impact of two retentions on the contractors
cash flow, on completion the retentions were combined into a single amount of 7.5% both pending
completion of all defects and measurement and verification of guaranteed savings. Once savings
were verified the retention fell to 2.5%, i.e. to cover the Works Retention only.
The ventilation controls retrofit involved a pain/gain share arrangement which was placed
through a standard Purchase Order arrangement – performance was measured by
evaluating electrical savings. If 100% of the target electrical kWh savings are achieved, the
parties receive 100% of their respective fees. For each 1% of additional savings, the
consultant and contractor receive a bonus of 0.5% of their fee, up to a maximum of 5%. For
each 1% savings falling short of target, the consultant and contractor incur a penalty of 0.5%
of their fee, up to a maximum of 5%.

20. Port Centre ProjecPort Centre Projectt
 A M&V plan including baseline energy data was preparedA M&V plan including baseline energy data was prepared
by the consultant PowerTherm Solutions (a Certifiedby the consultant PowerTherm Solutions (a Certified
M&V Professional) for both sections of the project.M&V Professional) for both sections of the project.
 M&V Plan and M&V Report – provided the means ofM&V Plan and M&V Report – provided the means of
ensuring savings materialised, taking due account ofensuring savings materialised, taking due account of
differences e.g. weather.differences e.g. weather.
 Payment Mechanism – retention until performancePayment Mechanism – retention until performance
demonstrated, 6 months of continual performancedemonstrated, 6 months of continual performance
 After several months it was demonstrated that savingsAfter several months it was demonstrated that savings
from both projects were substantially in excess of thefrom both projects were substantially in excess of the
guaranteed amount.guaranteed amount.
 Continue validation / C.I., the figures for 2014 prove thatContinue validation / C.I., the figures for 2014 prove that
the savings are ongoing and managed.the savings are ongoing and managed.
 Monthly reviews continuedMonthly reviews continued..

21. Port Centre ProjecPort Centre Projectt
 6 Month Measurement and Verification analysis6 Month Measurement and Verification analysis
Summary Jan / June 2013 Target saving
Baseline
kWh Actual kWh
Target
Saving
kWh
Actual
Saving
kWh
% saving
achieved
Value of
Saving €
surpassed
Savings
Ventilation Project 10.00% 39,062 18,388 3,906 20,674 52.93% € 3,190 € 2,587
Boiler Upgrade 15.00% 600,397 440,061 90,060 160,336 26.71% € 24,909 € 9,680
Total € 28,099 € 12,267

22. Project 2014 DeliverablesProject 2014 Deliverables
Project Deliverables € % kWh % CO2 (kg) %
Budget Estimate € 318,942
Actual € 303,972
Variance € 14,970
Baseline Year 2011 € 71,425 886,944 254,949
Year 2014 € 32,551 551,098 130,356
Reduction € 38,874 38% 335,846 54% 124,593 49%

23. Port Centre ProjectPort Centre Project

24. Port Centre ProjectPort Centre Project

25. Port Centre ProjectPort Centre Project

26. Challenges 1Challenges 1
 Occupied and working buildingOccupied and working building
 Procurement scheduleProcurement schedule
 Short time frame to complete works in line withShort time frame to complete works in line with
SEAI requirementsSEAI requirements
 SEAI Payment schedule very tight for monitoringSEAI Payment schedule very tight for monitoring
 Sufficient historical energy information.Sufficient historical energy information.
 Accurate measurement to validate resultsAccurate measurement to validate results

27. Challenges 2Challenges 2
 Optimisation of innovative CHP/Buffer controlsOptimisation of innovative CHP/Buffer controls
 Realistic / achievable TargetsRealistic / achievable Targets
 TimeTime

28. Hindsight 2020 vision!Hindsight 2020 vision!
 A gain share arrangement would also have beenA gain share arrangement would also have been
more appropriate for the Boilerhousemore appropriate for the Boilerhouse
refurbishment to provide a more sustainedrefurbishment to provide a more sustained
motivation to remain involved.motivation to remain involved.
 Would I do another EPRP ??Would I do another EPRP ??

29. Port Centre ProjectPort Centre Project
 Consultant - PowerTherm SolutionsConsultant - PowerTherm Solutions
 Mechanical Contractor - T. Bourke & Co.Mechanical Contractor - T. Bourke & Co.
 Controls Contractor – Standard Control SystemsControls Contractor – Standard Control Systems
 SEAISEAI

30. Boiler House PanelBoiler House Panel

31. CHP & Buffer VesselsCHP & Buffer Vessels

32. BoilersBoilers

34. Thank you