Enviga Geothermal (Richard Palmer Chief Exec)

Presented on 13 April 2016
Presentation by:
Richard Palmer
Chief Executive
Cornhill House Group
Chief Executive
Enviga Geothermal
Presentation to:
Thrive for Business Energy Club
Thoughts
on a Changing World

© Emotion Energy Limited
2Cornhill House Group
©CornhillHouseGroupLimited2016
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Consortium?

Climate change
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OECD final energy consumption (International Energy Agency)
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UK final energy consumption (DECC)
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Renewable Heat Incentive tariffs have changed
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RHI non-domestic tariffs – up to 200 kW capacity
p/kWh
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Battersea Power Station redevelopment
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BOREHOLE THERMAL ENERGY STORAGE
CASE STUDY: KATRINEHOLM, SWEDEN
INDOOR
ICE RINK
Cooled Sep-May
OFFICES
Heated
Sep – May
OUTDOOR
ICE RINK
Cooled when air
is above 0°C
GYMNASIUM
Heated
Sep – May
OUTDOOR
SOCCER
Heated when
air is below 0°C
SWIMMING
POOL
Heated all year
round
SHARED
UNDERGOUND
THERMAL
ENERGY STORAGE
Community
cluster
©NeoEnergyLimited2016
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CASE STUDY: NYDALEN, NORWAY
UNIVERSITY
RESIDENTIAL
OFFICESHOTEL
SHARED BTES
ARRAYS
Energy profile: university
 180,000 m2 mixed usage development by
Avantor in the Nydalen district of Oslo
 ‘Community cluster’ sharing two BTES
arrays: 160 boreholes up to 260 metres
deep, accommodating differing daily
energy profiles
 6MW heating, 9MW cooling: 60-70% lower
external energy requirement than other
options
 Completed 2004; payback 4.1 years.
RESIDENTIAL
UNIVERSITY
HOTEL
OFFICES Energy profile: hotel
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 Housing development in south Stockholm,
with 500 apartments
 Second largest BTES installation in Sweden
 13 ‘energy centres’, each with 12
boreholes and 2 heat pumps: a total of 156
inclined boreholes, 230 m deep
 In operation since Feb 2011: electricity
consumption of 1.6 GWh/yr is a 70%
reduction from original usage.
CASE STUDY: LJUSKÄRRSBERGET, SWEDEN
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• Reducing business energy costs for the organisation through onsite electricity
generation, storage and energy management
Corporate energy management
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Weather info
Solar PV,
AD & Hydro
Battery storage
Energy consumersGrid supply
Energy charge/
discharge, isolation
from peak pricing
Power Purchase Agreement,
FiT tariff revenue,
stable & clean energy
Buy when price is low,
sell at peak demand
Energy
management
Onsite CHP
self-generation
Rooftop data
and grid data

Our
hybrid
approach
Biomass
Solar PV
Solar thermal Solar PV/T
EPCs
Voltage optimisation
LED lighting
ECO measures & air quality
Heat pumps & geothermal
Systems control
Energy storage
Fuel cells
Electricity purchasing
by the minute
Geospatial Information Systems
• Fully-funded
• Full Operations-&-Maintenance service
• Performance guarantee
• Carbon-free.
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• The screw pile was invented in 1833 by
Alexander Mitchell
• The first use of screw piles was in 1838 for the
Maplin Sands lighthouse in the Thames estuary
• Used for Portland breakwater in 1847 to create
world's largest man-made harbour
• From 1853 onwards, most of UK’s pleasure piers
were constructed using screw piles.
Screw piles
They are not new!
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Cornhill House Group©EnvigaGeothermalLimited2016

Screw piles
Modern screw piles
• Segmented pile system
• To carry tensile, compressive, and lateral loads
• Constructed of helical plates welded to thick-walled
circular hollow-section steel
• Galvanised as standard
• Design life of 120+ years is easily achievable
• Provide for axial loads from 75 to 500kN SWL.
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Screw piles
Key advantages
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The thermal solution
Screw pile foundations as a ground heat exchanger
The sun delivers 20 x more heat per square metre per year than is used
heating a modern building, but at the wrong time. So can this be captured
economically?
Yes, but how do we store this heat?
Our answer is – Underground Thermal Energy Storage (UTES)…
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Ground energy as a heat source
Annual temperature profile of the ground heat source
• Extract solar energy stored in the
ground
• High temperature stability makes the
ground a good heat source
• 1 metre deep: 5-17°C depending on
the time of year
• > 6 metres deep: 8-12°C depending
on the time of year
• Heat extraction rates vary with soil
type:
• Dry gravels / sand – poor conductor
• Wet soils / bedrock – good conductor.
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Ground source heat pump
CO2 savings from heat pumps
• Ground source provides > 25% reduction in CO2 emissions when compared with gas
central heating
• Ground source heat should be a fundamental part of energy-efficient construction, but
the high capital outlay required for the ground collectors has resulted in a slow uptake
in the UK market
• The marginal cost of adapting the foundations of a building (which are always
required), by utilising screw piles as ground collectors as well as foundations, is small.
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Thermo Screw Pile™
The principle
Thermo head connector
6m x 89mm CHS steel shaft
capable of loads up to 200kN SWL
Inlet / outlet tubes
Mounting / driving
steel plate
Helix configuration
Steel end
Annulus
Inlet tube
Purpose-built rig with collapsible mast can
install up to 60 Thermo Screw Piles™ per day.
Remote & GPS control options for precision
installation: using a BIM model the piles
become the setting out for the building.
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The Thermo Screw Pile™ is protected
by UK and international patents
©EnvigaGeothermalLimited2016

Turnkey delivery
Integration by partnering with experts in their field
Design partners
• Architectural
• BIM
• Energy
• Structural
An integrated approach unlocks our ability to maximise the efficiencies of the ‘build system’
and the performance of the renewable technologies within. Apart from speed of delivery,
offsite manufacture is the key to providing consistent energy-efficient air-tight buildings,
essential for the renewable technologies to achieve their expected levels of performance.
Renewables partners
• Hardware
• Pipework
• Connections
• Smart metering
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Substructure partners
• Foundations
• Groundworks
• Infrastructure
Superstructure partners
• Build systems
• Cladding systems
• Roofing

ecoLOGIC funding
Innovative funding for integrated renewable solutions
Teaming up with leaders in the renewable energy
sector and with manufacturers of energy-efficient,
offsite-constructed build systems provides truly
zero carbon solutions for large-scale
developments.
We utilise district heating design and innovative
technologies such as Underground Thermal
Energy Storage using the Thermo Screw Pile™
system in conjunction with the latest solar PV and
PV/T systems, both roof- and ground-mounted.
Once designed and costed, our partners ecoLOGIC
can arrange a funding package, providing for
CapEx-free or heavily-discounted supply,
installation and maintenance of the renewable
technologies for 20+ years – a TotEx solution.
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ecoLOGIC funding
The future of offsite housing and mixed-use developments
The district heating concept is especially
appropriate for using renewable energy in
mixed-use developments. Surplus heat and
electrical power generated by one type of
building can be redistributed to others with
different demands and timings, offering
substantial efficiency gains.
The ecoLOGIC funding mechanism not only
allows for zero carbon developments to be
cost-neutral when compared with less-
efficient more traditional forms of
construction, it can actually make it more
cost-effective.
This is because the Thermo Screw Pile™
system is paid for out of the renewables fund,
which means there is little or no foundation
cost to come out of the development fund.
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Consortium?

International scope
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£1 billion
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£12 billion
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   

• Our main partner is a US-based funds provider
• USD $3 billion available
• At least 70% of funds required, balance from co-funder
• 3- to 5-year period for loans
• 3% interest wrapped up within each loan.
Infrastructure funding
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• UK funds provider
– 20-year period for loans
– £250m+ matched funding is available today
• Swedish funds provider
– 5- to 20-year period for loans
– 2,000 MW already installed
• Our core proposition is a 20-year fully-funded renewable energy
proposal across all disciplines: foundation systems, geothermal,
solar thermal/PV, plus a range of demand-side measures …
• … combined with Home Heating Cost Reduction Obligation (HHCRO)
grant funding to address fuel poverty – 3 years / £5bn / 2m homes.
Funds providers for renewable energy projects
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Legal & General Homes
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• Recycled glass and carbon-fibred
sandwich panels to be used in the
construction of energy-efficient
buildings to a Passivhaus standard
– Low cost, especially appropriate for affordable
or subsidised construction programmes
– Designed to have no negative environmental impact, both from the house
design or any part of the manufacturing process
– Structurally able to withstand earthquakes and hurricanes
– Attractive, high-quality appearance
– Designed to meet mass production demand (3-bed house in 8 hours).
Innovative material for wall
or floor panels
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in partnership with…

Innovative material (continued)
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• Single-layer multi-purpose panels created from
85% recycled glass and 15% oil-based resin –
the surfaces act as the internal & external finish.
• Independent & regulatory tests show panels are:
– Glass beams & components 6 -7 times the yield
strength of structural steel
– Non-permeable (not affected even if core is
without a skin)
– 100% recyclable; no volatile organic content
– Tested to Canadian & American codes for storms
(flying debris); Class A fire rating and non-charring;
100% mould/germ growth resistant
– High sound resistance
– Screws & fixings can affix directly without split or break-out
– Long lifespan: 60-year warranty, non-degrading.
in partnership with…

• Newbuild & retrofit
Common themes…
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Project X: Collaborative project with NeoEnergy AB
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• More than 500,000 geothermal heating systems have been
installed in Sweden during the last 35 years. Project X
involves a complete review of the concept (installation,
system and parts) in order to make the techniques and
technology more widely applicable world-wide.
• Objective: more cost-effective GSHP (Ground Source Heat
Pump) solutions involving boreholes
– Drilling, borehole heat exchangers, heat pump, installation
• Target environmental benefits for borehole drilling:
– Practically silent
– 90% reduction in fuel consumption
– Environmentally friendly – only clean water, no dust
– Effective treatment of cuttings.

• Fuel poverty
• Utility obligations
• Government funding
• Life-cycle cost savings
• Lifestyle living.
Common themes (continued)
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• Age group: young-to-old
• Centralised billing
• Monitoring, metering, purchasing
• Fairness, social responsibility, CSR
• Culture, education, training.
Common themes (continued)
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• Contact details:
– Richard Palmer, Chief Executive, Cornhill House Group
Mobile 078 0165 7210, Email cornhill-house@btconnect.com
Conclusion
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Enviga Geothermal (Richard Palmer Chief Exec)

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