renewable energy opportunities with infrastructure projects · pdf filerenewable energy...

Renewable Energy Opportunities

with Infrastructure Projects Tony Amis Tony Amis

Business Development Director

December 2014

© 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• Case Study – Crossrail

• What are the issues Installing loops into Foundations

• Good Design practice

© Geothermal International

The Journey to GI Energy

Wednesday, 03 December

20143

GI Energy Today

GSHPASHP CHP

Our Unique Skills & Experience allow

us to Deliver Bespoke Solutions via a

Diverse Technology Portfolio

Bringing the Elements Together as a


2014© GI Energy 4

Controls Solar

Power

CorrectionBiomassDemand

Reduction

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 ENERGY

Supply & Management

Solar PV

CHP

Solar Thermal

ELECTRICAL POWER

HIGH GRADE HEATING

Waste

Heat

Recovery

30

% R

en

ew

ab

le E

ne

rgy

Low

Ca

rbo

n S

olu

tio

nAim

Long Term System Optimisation

Maximising CO2 & Run Cost Savings


2014© GI Energy 5

GSHP’s

Other (process)

Boilers

Chillers

COOLING

LOW GRADE HEATING

TOP UP & OR BACK UP

10% - 200%+

Recovery

20

-30

% R

en

ew

ab

le E

ne

rgy

Low

Ca

rbo

n S

olu

tio

n

Thermal

Storage

Free

Cooling

Co

nv

en

tio

na

l

PRE HEATING

Our Skills for Your Benefit


2014© GI Energy 6

Primary circuit options for GSHP systems

Systems can be combined to give optimal solution

Open Loop SystemClosed Loop Systems

Ground Sourced Heat Pump (GSHP) Principle

� 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)

TrinityHaus colloquium

Geothermal heat flow(0.06 W/m2)

Solar /atmospheric energy(10’s -100’s W/m2)

Ground Temperature 10o -12o

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

Ground sourced heat pump system

HEAT

Compressor

Pump

SECONDARY CIRCUIT(Building)

Warm

HotHot

50o

10o

HeatExchanger

TrinityHaus colloquium

HEAT PUMP

Expansion valve

Pump

SOURCE CIRCUIT(Geothermal piles)

Cool

WarmWarm

Cool W

arm

System is reversible allowing for both heating and coolingOOC Heating load 965,841kWhth 42% of Building RequirementOOC Cooling Load 557,536kWhtc 100% of Building Requirement

6o

30oHeatExchanger

CHP Improvements when integrated with GSHP’s

5% FLUE LOSSES

5% INTERNAL

LOSSES

Waste heat

Capture

Energy Piles GSHP

10% FLUE LOSSES


2014© GI Energy

30% ELECTRICITY50% HEAT

Surplus Heat

Storage

Energy Piles

/BoreholesGSHP

• Offices

• Hotels

• Individual Homes

• Apartment Buildings

• Schools

• Hospitals

• Manufacturing

• Sports Centers

Geothermal has Been successfully applied to:

• Apartment Buildings

• Supermarkets

• Residential

Developments

• Sports Centers

• Agriculture

• Government Buildings

• Stately Homes

• Railway Stations

Vertical Loop Under Buildings

B&Q Superstore, New Malden

• System:

• Vertical, Closed Loop

• Beneath the Building

• Size:

• 549kW Cooling

• 659kW Heating• 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)

Slide 15

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


2014© 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 Plunging used 40mm bar + 4 pipes (2 loops)• 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• 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


2014© GI Energy 31

Bulgari Hotel - First Energy Diaphragm Wall Project in UK

• System:

– Diaphragm Wall & Energy Piles®

• Size:

– 150kW Heating

– 150kW Cooling– 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– 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

CO2Savings

(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 21TCR 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 HallEastern Ticket Hall

Western Ticket Hall

Bond St ETH Elevation

Ground Level

Thermal piles

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

Access tunnels

Thermal piles at base of shaft

Bond St WTH

GI Energy Design�14 Thermal piles� 2.5m diameter � 20m deep � 6 loops per pile� 1.2m D-Wall� 44m deep� 29 panels� 2 loops /panel

� 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 collecting up inside the capping beam

Loops at central collection point

Completed Plant Room

Controls

Slide 58

Dry Cooler1,115kW Capacity

Retail Condenser CircuitTTarget = 20oC, Tmax = 40oC

Office LTHW CircuitTFlow = 50oC

CFS & Partners Responsibility

13 Number Heat Pumps in N + 1 Configuration

GI Responsibility

Heat Pump Capable of

Providing

Simultaneous Heating

& Cooling

Fan

Coil

Unit7°C

M

M

35

-50

°C

Cooling to

Crossrail

Station

Heating

to OSD

Δtmax 6°C

Δtm

ax

5°C

Limit of Geothermal Responsibility


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

Open Loop Well Pair

Typical Proposed Crossrail Arrangement

Energy Piles

& Wall

Control

CentreBuilding

Requirements

Monitor Record

Loop Temperatures

Ensure Crossrail

Asset Protection

Opportunities For Crossrail Are Identical

For 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

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*


2014© GI Energy 61

Option 3: Install loops into

Tunnel Culvert

Option 2: Install loops behind

Tunnel segments

Crossrail Station Opportunities

Utilising redundant TAM’s

Settlement reducing grout

shafts at Crossrail stations

One Zone will deliver 60kW

of heating and cooling


2014© GI Energy 62

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.


2014© GI Energy 63

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


2014© 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

Through our controls & long term management we will be

looking to outperform on current assessed performance..

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 YearsWednesday, 03 December

2014© GI Energy 65

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)

Slide 66

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

GI Energy UK Headquarters

Contact - Tony Amis

[email protected]

Shillingwood House

Westwood Way

Westwood Business Park

contact

Westwood Business Park

Coventry

West midlands

CV4 8JZ

Mobile: +44 (0)7595 278 428Phone: +44 (0)2476 850 403

www.gienergy.net

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

renewable energy opportunities with infrastructure projects · pdf filerenewable energy...

Documents