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Renewable Energy Opportunities with Infrastructure Projects
Tony Amis Business Development Director
June 2015
© GI Energy
Contents
• The GI Energy Journey
• Ground Sourced Heat Pumps
• Geothermal solutions
• Energy Foundations & Opportunities In the UK
• Benefits of Using Energy Foundations
• Case Study – Crossrail
• What are the issues Installing loops into Foundations
• Good Design practice
© Geothermal International
The Journey to GI Energy
Monday, 27 July 2015 3
GI Energy Today
Monday, 27 July 2015 © GI Energy 4
Controls Solar
PowerCorrection
GSHPASHP
Biomass
CHP
Demand Reduction
Our Unique Skills & Experience allow us to Deliver Bespoke Solutions via a
Diverse Technology Portfolio
Bringing the Elements Together as a Coherent Whole increases benefits
Commitment to an on-going energy partnership for the long-term
GI Renewable Energy Solution
Monday, 27 July 2015 © GI Energy 5
GI ENERGYSupply & Management
GSHP’s
Solar PV
Other (process)
CHP
Solar Thermal
Boilers
Chillers
ELECTRICAL POWER
HIGH GRADE HEATING
COOLING
LOW GRADE HEATING
TOP UP & OR BACK UP10% - 200%+
Waste Heat
Recovery
20
-30
% R
en
ew
able
En
erg
y Lo
w C
arb
on
So
luti
on
Aim Long Term System Optimisation
Maximising CO2 & Run Cost Savings
Thermal Storage
Free Cooling
Co
nve
nti
on
al
PRE HEATING
Our Skills for Your Benefit
Monday, 27 July 2015 © GI Energy 6
Initial Consultation
Survey,Feasibility
Study,Proposal
Detailed Engineering
System Installation,
Integration & Commissioning
Remote Energy
Monitoring & Responsive
Control
Providing Sustainable Energy
Funded SolutionEnergy Efficiency Pays for Implementation & Maintenance
Understanding Your Unique Commercial & Sustainability Objectives
In House Experienced Team Works Closely with Client Team to Deliver Best
In Class, Integrated Solution
Whole Life Maintenance
& Product Warranty
Constantly Working to Maximise Performance in Partnership with Client
Team
Initial Consultation
Survey,Feasibility
Study,Proposal
Detailed Engineering
System Installation,
Integration & Commissioning
Remote Energy
Monitoring & Responsive
Control
Providing Sustainable Energy
Funded SolutionEnergy Efficiency Pays for Implementation & Maintenance
Understanding Your Unique Commercial & Sustainability Objectives
In House Experienced Team Works Closely with Client Team to Deliver Best
In Class, Integrated Solution
Whole Life Maintenance
& Product Warranty
Constantly Working to Maximise Performance in Partnership with Client
Team
Initial Consultation
Survey,Feasibility
Study,Proposal
Detailed Engineering
System Installation,
Integration & Commissioning
Remote Energy
Monitoring & Responsive
Control
Providing Sustainable Energy
Funded SolutionEnergy Efficiency Pays for Implementation & Maintenance
Understanding Your Unique Commercial & Sustainability Objectives
In House Experienced Team Works Closely with Client Team to Deliver Best
In Class, Integrated Solution
Whole Life Maintenance
& Product Warranty
Constantly Working to Maximise Performance in Partnership with Client
Team
Primary circuit options for GSHP systems
Systems can be combined to give optimal solution
Open Loop System
Closed Loop Systems
Ground Sourced Heat Pump (GSHP) Principle
TrinityHaus colloquium
Geothermal heat
flow
(0.06 W/m2)
Solar /atmospheric energy
(10’s -100’s W/m2)
Ground Temperature 10o -12o
Pass a fluid through a constant 12o
temperature ground:
− A cooler fluid will increase in temperature, (used for heating)
− A warmer fluid will decrease in temperature (used for cooling)
The magnitude of this temperature differential is around 3o-5o
Need to maintain this differential for gshp system viability
Designed to be maintained with seasonal heating and cooling cycles
TrinityHaus colloquium
Ground sourced heat pump system
HEAT
PUMP
Compressor
Expansion valve
Pump
Pump
SOURCE CIRCUIT
(Geothermal piles)
SECONDARY CIRCUIT
(Building)
Cool
Warm
Hot
Warm
Co
ol W
arm
System is reversible allowing for both heating and cooling
OOC Heating load 965,841kWhth 42% of Building Requirement
OOC Cooling Load 557,536kWhtc 100% of Building Requirement
Hot
6o
30o
50o
10o
Heat
Exchange
r
Heat
Exchange
r
CHP Improvements when integrated with GSHP’s
Monday, 27 July 2015 © GI Energy
5% FLUE LOSSES
30% ELECTRICITY50% HEAT
5% INTERNAL LOSSES
Waste heat Capture
Surplus Heat Storage
Energy Piles /Boreholes
GSHP
10% FLUE LOSSES
• Offices
• Hotels
• Individual Homes
• Apartment Buildings
• Supermarkets
• Residential Developments
• Schools
• Hospitals
• Manufacturing
• Sports Centers
• Agriculture
• Government Buildings
• Stately Homes
• Railway Stations
Geothermal has Been successfully applied to:
Vertical Loop Under Buildings
B&Q Superstore, New Malden
• System:
• Vertical, Closed Loop
• Beneath the Building
• Size:
• 549kW Cooling
• 659kW Heating
• Collector type:
• 120 boreholes
• Depth 100m
• Completed:
• 2008
Energy Piles®
Slide 15
Benefits of using EnergyPiles ® / Energy Walls®
Piles have dual functionality – structural and as energy source
One of the cheapest sources of ground energy
Relatively low extra over cost to use the piles (depends on technique)
Minimal impact on piling program
Provides a Stable & Sustainable renewable energy • Advantage for BREEAM / LEED buildings
• Reduces CO2 emissions to the atmosphere.
• UK Energy foundations saving circa 7,000T /annum
52 Energy Pile Installations In the UK
Monday, 27 July 2015 © GI Energy 16
Geothermal Loops Have Now Been Installed Successfully In All Foundation Types
Small / large diameter bored piles –
Westminster Academy / One New Change/ US Embassy
Piles under bentonite or dry bore – Bankside London
CFA piles - Canterbury University/ Belfast Police station
Driven Cast In-situ piles. North Kent Police Station
Driven Precast Piles – Balmore Glasgow & Bristol
Diaphragm walls - Bulgari Hotel Knightsbridge / Crossrail Stations
Installing the Loops
Loop Reeler
CFA Piles, Hauser Forum Cambridge
• Pile design – Mott MacDonald
• Pile Contractor – Bachy
• Loop design / build – GIL
• CFA piles (600mm dia) 149 No up to 25m depth
• Loops - 4 pipes x 40mm dia
• Pushed with 1 x 40mm bar
• Heating - 188kW
• Cooling - 117kW
Plunging used 40mm bar + 4 pipes (2 loops)
Trimming Cage and header pipes
Westminster Academy
• System:• EnergyPiles™
• Size:• 331kW Heating• 120kW Cooling
• Collector type:• 260 No Rotary bored Piles depth
15 -20m
• Completed• 2008
Energy Piles & Closed loop
Energy Piles & Dry Coolers
North Kent Police PFI
• System:
• Energy Piles, Closed Loop & Dry Cooler
• Size:
• 550kW Heating
• 1,350kW Cooling
• Collector type:
• 250 Piles to 23m
• 80 Bores to 100m
• Operational Since 2008
Energy Piles & Open loop
One New Change, London
• System:
• Piles & Open Loop
• Size:
• 1,638kW Heating
• 1,742kW Cooling
• Collector type:
• 219 Energy Piles
• Open Loop Wells
• Operational 2010
ONC Cage Design
© Geothermal International
Three sections of reinforcement cages to join One continuous length of geothermal loop inside each pile Loops filled with water and pressurised for installation
© Geothermal International
One New Change, London
ONC Energy Pile – Loop Installation
© Geothermal International
One New Change- Headering Work
© Geothermal International
Completed Plant Room
Computer driven
according to various
scenarios
One New Change Performance
Monday, 27 July 2015 © GI Energy 31
kWh
100,000 kWh
200,000 kWh
300,000 kWh
400,000 kWh
500,000 kWh
600,000 kWh
Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12 Oct-12 Nov-12 Dec-12
Energy exchanged with RCL
Heating Energy delivered
Cooling Energy Delivered
Electricity consumed by HP
Global annual efficiency of the GSHP system (*) 4.1
Annual CO2 savings (tons) 294
Annual financial savings (£) £62,374
Note: (*) Consumption of Heat pumps only; excludes all the pumps and auxiliary ancillaries. pumps only; excludes all the pumps and auxiliary ancillaries.
Bulgari Hotel - First Energy Diaphragm Wall Project in UK
• System:
– Diaphragm Wall & Energy Piles®
• Size:
– 150kW Heating
– 150kW Cooling
• Collector type:
– 50 Energy Piles
– 150m Energy D. Wall
• On Site:– Commissioned 2012
Bulgari Hotel Knightsbridge / Crossrail Station Box Schematic
© Geothermal International
Crossrail Stations London
• System:
– Diaphragm Wall & Energy Piles®
• Size:
– 150kW-300kW Heating
– 150kW-300kW Cooling
• Collector type:
– Energy Piles
– Energy D. Wall
• On Site:– Farringdon Street
– Tottenham Court Road
– Bond street
– Fisher Street
– Paddington
Anticipated CO2 Savings at Crossrail
Contract
Heating
peak power
Cooling
peak power
CO2
Savings
(T/Annum)
(kW) (kW)
Paddington Integrated 420 240 200
Bond St WTH 186 186 28
Bond St ETH 340 340 49
TCR West 160 160 21
TCR East 75 75 9
Fisher St 60 60 10
Liverpool St – Blomfield 150 80 11
Liverpool St – Moorgate 70 25 14
Farringdon West 120 120 16
Farringdon East 90 90 12
Totals 1,671 1,376 370
Crossrail and Geothermal
Slide 36
Crossrail - Bond Street Station
Eastern Ticket Hall
Western Ticket Hall
Bond St ETH Elevation
Thermal piles
Ground Level
30m
Bond St ETH
GI Energy Design
57 Thermal pile
1.8m diameter
67m deep
6 loops per pile
30m Effective
length due to deep
cut off
Bond St ETH
Thermal piles at base of shaft
Access tunnels
Bond St WTH
1.2m D-Wall
44m deep
29 panels
2 loops /panel
GI Energy Design
14 Thermal piles
2.5m diameter
20m deep
6 loops per pile
Pre-installation Quality Control & Testing
Crossrail – WTH – Loop fixing
Diaphragm wall loops on outside of panel
Thermal loops prefixed on
inside of reinforcement
Lifting the Diaphragm Wall Cage
Installing the Loops
Installing the Loops
Installing the second cage
Fixing the loops to the cage
© Geothermal International
Fixing & Testing
Trimming and Protecting
Pre-concrete Pressure Test
Concreting the Diaphragm Wall
Headering Works
© Geothermal International
Crossrail Bond Street WTH - Capping beams with loops
Loops at central collection
point
Loops collecting up inside the
capping beam
Headering Up
Edge Of slab
Monday, 27 July 2015 © GI Energy 55
Plant Room
Monday, 27 July 2015 © GI Energy 56
Main flow returns to piles in Plant roomManifold
Plant Room
Monday, 27 July 2015 © GI Energy 57
Circulation Pumps
Header Pipework
Plate Frame Heat Exchanger
Slide 58
Completed Plant Room
Controls
© Geothermal International
www.geothermalint.co.uk
Telephone: +44 (0)24 7667 3131
One New Change Geothermal System Schematic
Schematic Only
SIZE Authored / Approved DWG NO REV
A3 CD / CD Schematic Only 1
SCALE NTS 22nd
June 2007 SHEET 1 OF 1
Dry Cooler
1,115kW Capacity
Retail Condenser Circuit
TTarget = 20oC, Tmax = 40
oC
Office LTHW Circuit
TFlow = 50oC
Open Loop Well Pair
CFS & Partners Responsibility
13 Number Heat Pumps
in N + 1 Configuration
GI Responsibility
Typical Proposed Crossrail Arrangement
Heat Pump Capable of Providing
Simultaneous Heating & Cooling
Fan Coil Unit
7°CM
M
35
-50
°C
Cooling to CrossrailStation
Heating to OSD
Δtmax 6°C
Δtm
ax5
°C
Energy Piles & Wall
Limit of Geothermal Responsibility
Control Centre
Building Requirements
Monitor Record Loop Temperatures
Ensure CrossrailAsset Protection
Opportunities For Crossrail Are Identical For HS2 NLE & Thames Tideway
1km of Diaphragm Wall or Piles - 40m deep could provide..
• 500kW of Peak Heating (enough to heat over 50 Homes)
• 500kW of Peak Cooling
• Save 350 tonnes of CO2 per Annum
• Reduce Energy Bill by approx £90k per annum when compared against conventional systems
© Geothermal International
Opportunities for Tunnels
Monday, 27 July 2015 © GI Energy 61
Option 1: Install loops into Tunnel segments
Option 3: Install loops into Tunnel Culvert
Option 2: Install loops behind Tunnel segments
1km of tunnel cooling could provide...
• 30-40kW of peak heating• Save up to 2.5 tonnes of CO2 per annum • Reduce Energy bills by approx. £240 per annum
when compared against conventional systems • RHI income of £3,604 per annum*
Crossrail Station Opportunities
Monday, 27 July 2015 © GI Energy 62
Utilising redundant TAM’s Settlement reducing grout shafts at Crossrail stations
One Zone will deliver 60kW of heating and cooling
Old Common Crossrail Depot
Monday, 27 July 2015 © GI Energy 63
The contract between Transport For London and Bombardier covers the supply & delivery of 65 new 200m long trains in 2017 & maintained for 32 years at Old Oak Common.
GI Renewable Energy Solution - Crossrail Old Oak Common Depot
• GSHP System • 25no 150m deep boreholes
• 466no 15m deep energy piles under the building
• Will provide 936kWth heating and 566kWth cooling
• CHP System will provide top up 446kWth heating and 280kWe of electrical load
• 220m² Solar Thermal will add a further 140kWth of hot water load
• 1498m² Solar PV will provide a further 220kWe
Monday, 27 July 2015 © GI Energy 64
GI Renewable Energy Solution Highlights - Old Oak Common Depot
Based Upon Electrical, Heating and cooling profiles provided by Atkins
• 54% Heating and cooling will be provided from renewable technology
• 20% of electrical load generated on site from CHP / Solar PV
• 33% Renewable energy solution
Providing Demonstrated Savings Of.....
• Run cost savings £97,000 per annum when compared against conventional equipment
• Renewable Heat Incentive £193,628/ annum
• 530Tonnes of CO2 per annum
• Potential payback on investment < 10 YearsMonday, 27 July 2015 © GI Energy 65
Through our controls & long term management we will be looking to outperform on current assessed performance..
Slide 66
Benefits of using EnergyPiles ® / Energy Walls®
Piles have dual functionality – structural and as energy source
One of the cheapest sources of ground energy
Relatively low extra over cost to use the piles (depends on technique)
Minimal impact on piling program
Provides a Stable & Sustainable renewable energy • Advantage for BREEAM / LEED buildings
• Reduces CO2 emissions to the atmosphere.
• UK Energy foundations saving circa 7,000T /annum
Next Steps
Why wouldn’t you…?
Monday, 27 July 2015 © GI Energy 67
They have & do.
GI Energy UK Headquarters
Contact - Tony Amis
Shillingwood House
Westwood Way
Westwood Business Park
Coventry
West midlands
CV4 8JZ
Mobile: +44 (0)7595 278 428
Phone: +44 (0)2476 850 403
www.gienergy.net
contact
thank you
www.gienergy.net
Monday, 27 July 2015 © GI Energy 69
All contents of this presentation are copyright Geothermal International Limited. Reproduction is forbidden without specific permission of Geothermal International Limited.