The document discusses two scenarios for providing electricity to a facility: Scenario 1 involves generating 100% of the facility's electricity needs from on-site gas generators. Scenario 2 uses both gas generators (52% of needs) and the existing electricity grid (48% of needs). Both scenarios would reduce the facility's energy costs compared to solely using the grid, with payback periods of 6 months for Scenario 1 and 10 months for Scenario 2. Scenario 1 would also provide greater reductions in the facility's carbon dioxide emissions.

1. 1
Ownership of Australia’s East Coast gas reserves (2013)
Source: Australian Government (2013)
Perry Street natural gas pipeline
Source: Bundaberg Regional Council (2014)
Australia’s gas supply/demand balance
Source: Australian Government (2012)

2. 2
Scenario 1
100% Gas
• 100 % supply (226 340kWh per year)
from gas generation, total removal
from the electricity grid.
Scenario 2
52%
Gas
48%
Electricity
Grid
• 52 % supply (117 618 kWh per year)
from gas generation, replacing Tariff 37
• 48 % supply (108 722 kWh per year)
from the electricity grid (Tariff 22).

3. 3
• Aggreko would supply all associated electricity generation infrastructure
Work outside of Aggreko Scope;
• Earth works for generator pad
• High Voltage Earth Grid
• Fencing around the compound
• High Voltage connection to BWEL switch room
• Natural gas pipeline extension and connection

4. 4
Feasibility of the project was determined by;
• Cost;
• Payback period;
• Energy efficiency;
• Life expectancy;
• Maintenance;
• Installation time;
• Environmental impact;
• Social impact; and
• Government grants;

5. 5
Scenario 1
Item Cost (over a 4 year period)
Gas Generators, Diesel,
Transformers etc.
30,000 per week (6,240,000 for 4
years)
Commissioning 28,000
Transport and Craneage to site 32,000
Transport and Craneage from
site
20,000
Decommissioning 20,000
Earth Works for Pad for
62,400
generators
Earth Grid and fencing 12,000
Gas Connection Unknown
HV connection to switch room 50,000
Diesel consumption Minimal – approximately 1000 for 4
years
Gas consumption 1,274,596 for 4 years (318,649 per
year)
Total 7,739,996 for 4 years
Per Year 1,934,999
Comparison of electricity cost per year
Electricity Grid Scenario 1 Scenario 2
$3,997,158 $1,934,999 $3,082,697
Scenario 2
Item Cost (over a 4 year period)
Gas Generators, Diesel,
Transformers etc.
20,000 per week (4,160,000 for 4
years)
Commissioning 20,000
Transport and Craneage to site 22,000
Transport and Craneage from
16,000
site
Decommissioning 15,000
Earth Works for Pad for
62,400
generators
Earth Grid and fencing 12,000
Gas Connection Unknown
HV connection to switch room 50,000
Diesel consumption 6,056
Gas consumption 920,212 for 4 years (230,053 per
year)
Electricity Consumption Tariff
22
7,047,112 for 4 years (1,761,778
per year)
Total 12,330,780 for 4 years
Per Year 3,082,697
Cost
Price Difference over 4 year period
compared to the electricity grid
Scenario 1: $8,248,636
Scenario 2: $3,657,852

6. Payback period
6
Comparison of electricity cost per year
Electricity Grid Scenario 1 Scenario 2
$3,997,158 $1,934,999 $3,082,697
• Scenario 1: 6 months
• Scenario 2: 10 months
Energy Efficiency
• No improvement in energy reduction
Life expectancy
• Contract period of 4 years
• Potential of 15 -20 years (feasibility influenced by gas prices)

7. Maintenance
• To be performed by Aggreko as part of the rental agreement
Installation Time
• Estimated at 10 weeks with additional scope of works
7

8. Current BWEL emissions from electricity consumption
8
Source: DomGas Alliance (2012)
Source: The Australian Climate Change Science Program (2014)
Resource Percentage CO2
Emissions
(kg/MJ)
BWEL amount
(814 824 MJ)
Coal 74% 0.288 173 655 kg of CO2
emissions
Gas 15% 0.069 8433 kg of CO2
emissions
Renewabl
es
8% 0.005 326 kg of CO2
emissions
Others 3% 0.078 1906 kg of CO2
emissions
Total CO2 Emissions of BWEL Facility
based on electricity consumption
184 320 kg of
CO2 emissions per
year
Environmental impact

9. • BWEL emissions from electricity consumption Scenario 1: 56 222 kg of CO2 emissions per year
9
BWEL emissions from electricity consumption Scenario 2
Resource Percentage CO2 Emissions
(kg/MJ)
BWEL amount at (391 400
MJ)
Coal 74% 0.288 83 415 kg of CO2 emissions
Gas 15% 0.069 4050 kg of CO2 emissions
Renewables 8% 0.005 156 kg of CO2 emissions
Others 3% 0.078 915 kg of CO2 emissions
Total CO2 Emissions of BWEL Facility based on electricity
consumption
88 536 kg of CO2 emissions
per year
• Scenario 1: emissions reduction of 128 098 kg of CO2 emissions per year
• Scenario 2: emissions reduction of 66 568 kg of CO2 emissions per year

10. Social impact
• Minimal
• Designated area for installation is within the BWEL boundary
• Noise output level of 73 dB from 15 metres away
Government grants
10
• Nil
• The Queensland Gas Scheme finished on 31 December 2013