gi energy renewable energy opportunities with infrastructure projects june 2015

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


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


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


Survey,Feasibility

Study,Proposal




Remote Energy


Control







& Product Warranty


Team


Survey,Feasibility

Study,Proposal




Remote Energy


Control







& Product Warranty


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®

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


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


Three sections of reinforcement cages to join One continuous length of geothermal loop inside each pile Loops filled with water and pressurised for installation


One New Change, London

ONC Energy Pile – Loop Installation


One New Change- Headering Work


Completed Plant Room

Computer driven

according to various

scenarios

One New Change Performance


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


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 second cage

Fixing the loops to the cage


Fixing & Testing

Trimming and Protecting

Pre-concrete Pressure Test

Concreting the Diaphragm Wall

Headering Works


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


Plant Room


Main flow returns to piles in Plant roomManifold

Plant Room


Circulation Pumps

Header Pipework

Plate Frame Heat Exchanger

Completed Plant Room

Controls


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


Opportunities for Tunnels


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


Utilising redundant TAM’s Settlement reducing grout shafts at Crossrail stations

One Zone will deliver 60kW of heating and cooling

Old Common Crossrail Depot


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


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..

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…?


They have & do.

GI Energy UK Headquarters

Contact - Tony Amis

[email protected]

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


All contents of this presentation are copyright Geothermal International Limited. Reproduction is forbidden without specific permission of Geothermal International Limited.

gi energy renewable energy opportunities with infrastructure projects june 2015

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