VOLT GROUP LIMITED — Investor Presentation 2011

Sep 4, 2011

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An emerging green power utility�

Investor Presentation � September 2011�

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Company snapshot�

Australian Stock Exchan e - ERJ� g Issued Shares: ERJ� 700,508,267� Options: ERJO 64,737,700� (exercise price of $0.20 by 31/12/16) � (listed) 265,812,782� Options: ERJAO (exercise price of $0.03 by 30/6/15)� (unlisted) 29,066,675� Share Price: ERJ[1�] $0.023� Market Capitalisation (Undiluted) $16.1 M� Market Capitalisation (Diluted) $24.4 M�

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An emerging utility focused on providing recovered heat energy to multiple sectors, including mining and resources �

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Australian exclusive commercial rights for proven waste heat conversion technology – the “ Opcon Powerbox ”�

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Opcon Powerbox can produce up to 20% more power and lower CO2 emissions by ~15% without burning additional fuel

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1 Price at close on 2nd September 2011 �

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Progressive leadership team�

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Board�

Board
Hon Ian Campbell Non-Executive Chairman	17 years in Federal Parliament (including Minister for Environment & Heritage and responsible for climate change policy)
Greg Pennefather	Former CEO, Clarinet Australia; Former MD, Halcyon group;
Managing Director	Co-founder & inaugural CEO Request Broadband
Rolf Hasselström Non-Executive Director	Current Opcon CEO, provider of organic Rankine cycle Powerbox technology
Management
Peter Wassell	20 years in Senior Engineering roles in maintenance,
Chief Engineer	technical support and marketing
Geoffrey Reid CFO	Former Australasian Financial Controller MI-SWACO

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What we do

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1 2 3 4
Capture heat Generate Sell this Use this revenue
wasted as a 
 electricity using electricity back to to drive
by-product of the Opcon the customer� shareholder
industrial power Powerbox - value �
generation� without fuel or
creating
emissions or
capital costs to
the customer�
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Business model�

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Each 0.7 MW unit generates 6,000 MWh per year�

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Long term energy off-take agreements to deliver electricity from waste heat at a fixed price�

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Build, own and operate power generation capacity�

$25M zero coupon convertible bond facility to fund early installations� Longer term plan to use SPV to debt fund minimising shareholder dilution�

Per unit�

Per unit� Per MW� CAPEX (installed) $2.9M to $3.5M $4.1M to $5M Revenue� $1M to $1.2M per annum[1] $1.4M to $1.7M per annum[1] O eratin costs�[$160K to $195K per annum ][2�][$230K to $275K per annum ][2] p g Gross Margin 83% to 88%[3] 83% to 88%[3] (as % of Revenue)� IRR for project� 24% to 39%[3] 24% to 39%[3]

1 Based on electricity sale price of AUD$170-$200/MWh, off-grid diesel fuelled sites, assumes 97% uptime� 2 Project Operating includes maintenance 5% of Capex, insurance 0.5% of Capex� 3 5% yearly price increase, 3% inflation, 10 year project life�

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Power generation capacity target�

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Note: each unit has a generating capacity of 0.7 MW �

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Australiaʼs first Opcon Powerbox�

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Enerjiʼs Opcon Powerbox near completion �

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Enerjiʼs Opcon Powerbox – ready to load on the ship 17[th] August 2011 �

Installation timeline at Horizon Powerʼs Carnarvon Power Station�

March 2011�

• Project Scoping Study completed�

June 2011

• Construction of first two Powerboxes completed�

• Equipment orders placed by Enerji Limited�

July 2011�

• Powerbox testing complete�

August 2011

• Transportation from Sweden to Australia�

• Shipped on 18[th] August�

September to November 2011

• Powerbox arrives 29[th] September�

• Installation and commissioning�

• Estimated timeframe: 6-9 weeks�

December 2011

• First Invoice = Revenue�

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What is the Opcon Powerbox?�

Generates electric power using heat captured as a by-product of fossil fuel energy� Uses zero fuel and creates zero emissions� Generates power when and where it is needed� 6,000 MWh produced annually by each unit� Modular design – use multiple Powerboxes when required� Designed and manufactured in Sweden by Opcon �

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About Opcon�

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Opcon is an energy and environmental technology group that develops, produces and markets systems and products for eco-friendly, efficient and resource-effective use of energy. Opcon is over 100 years old and has activities in Sweden, China, Germany, the UK & Denmark. There are around 380 employees. The company’s shares are listed on Nasdaq OMX Stockholm.

Opcon and related entities own approximately 15% of ERJ

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Enerji ’ s recovered energy solution�

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Opcon Powerbox Competitive Advantage� Uses a twin screw Axial Turbine expander instead of an axial fin and blade turbine� Operating Range Greater operating range and flexibility� Safety Margin Minimum Range Heat Shutdown

Axial Turbine Twin Screw

Operating Range Minimum Heat Shutdown 11�

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Customer case study�

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Capacity� Fuel� Cost� Maintenance� Emissions�
7 MW of Diesel Diesel Fuel use of 7MW Diesel
Generator 15.3 million Litres Diesel Fuel Costs Maintenance cost Generator
capacity produces per year at a cost of $15.3M per of $1.08M/ per produce
58.3 GWh/year of of $15.3M 
 year� annum [(3)] 40,000 tCO2
electricity [(1)] (price = $1/L)� annually [(4)�]
Diesel Fuel use Fuel and
6.3 MW of Diesel Diesel Generator
reduced to 13.8 Electricity Costs Reduced load
capacity used, load reduced to
million Litres per of $14.8M per reduces cost to
plus 0.7 MW from 6.3MW, reducing
year at a cost of year including $0.97M/ per
Powerbox . Total= $13.8M
 $1M to Enerji for annum [(3)] tCO2 to 36,000
58.3 GWh/year [(1)] . annually [(4)]
(price = $1/L)� electricity [(2)] .�
Electricity
Generation: 
 Fuel Savings:
 Fuel Cost Maintenance Emissions
7 MW capacity 1.5M litres Savings:� Savings: � Savings:
reduction in
with or without 4,000 tCO2
diesel fuel use� $640k pa [(5)] $108 K pa�
Powerbox
$750k pa
Current
Situation
Add one
Powerbox�
Benefit�
Customer
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(1) Assumes 95% uptime (2) Electricity sale price of $170 /MWh (3) Maintenance cost = $0.0185 /kWh (4) 2.62 kg of CO2 produced for each litre of diesel (5) With the reduction in the fuel tax rebate of $0.0621/l as of 1[st] July 2012�

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Rising fuel prices fuelling growth�

Average International Energy Agency Crude Oil Import Price (annual data)[(1)�]

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Dollars per barrel (USD)�
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Opcon Powerboxes offer a hedge against rising fuel prices – they do not use fuel and pricing can be locked in for the entire contract period.�

• (1) Source: International Energy Agency publication, “ World Energy Outlook 2008 ”

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Savings increase with rising fuel prices�

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10 years:
save
$8.7M
20 years:
save
5 years: $22.6M
15 years:
save
save
$3.8M
$15M
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Note: this slide uses the same assumptions as the customer case study. (1) fuel price increase based on forecast in IEA publication, “ World Energy Outlook 2008 ” (2) Fuel consumption reduces from 15.3 Million L/pa to 13.8 Million L/pa as Enerji provides 1 Powerbox unit of 0.7MW. (3) Diesel Fuel price at 2011 is $1/L (4) Enerji electricity price increase = 3% pa.�

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Massive target market�

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Enerjiʼs primary target is off-grid power stations that supply electricity to remote mine sites .� In WA alone there are 300 operating mines. �

We can sell direct to the mining company or via the Independent Power Producer (IPP).

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Map source: WA Department of State Development �

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Conclusion – The Enerji Advantage�

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A clean, efficient solution that is ready to be rolled out into the Australian market place� Customers are not required to invest any capital to capture this waste energy�

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Compelling commercial proposition to generate revenue and shareholder returns with or without a carbon price� Power generation using zero fuel and producing zero emissions�

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Contact details�

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10 Ord St, West Perth 6005� Phone +61 8 9268 3800� www.enerji.com.au

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Disclaimer�

This document is prepared as a presenter ’ s aid and support –not a standalone document. Best efforts have been taken to ensure the accuracy of information contained, at the time of preparation. �

In some instances forward targets and/or assumptions have been included –all such instances are indicative only and subject to alteration and/or cancellation as and when the management of Enerji Limited sees fit. �

All information contained here is general in nature. �

Potential investors are cautioned against using the content of this presentation, in isolation, for making investment decisions. �

Research and the counsel of a qualified financial adviser or accountant are strongly recommended to anyone considering investing in listed company securities, including Enerji Limited. �

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