Gas monetisation timeline and options
LCK is evaluating several options for the monetisation of the LCEP gas resource. The first step of this process is to de-risk the project through a pilot programme in 2017. This would be followed by full field or commercial development with the potential for first gas in 2019 or 2020. In addition to the economic, geo-technical and environmental de-risking, we expect over the course of 2017 LCK will need to attract capital to fund both the 2017 pilot programme and full field development.
Exhibit 2: Gas monetisation timeline
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Source: Leigh Creek Energy
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Pre-commercial demonstration in 2017
LCK acquired 18.3 line kilometres of new 2D seismic in early 2016 in order to aid specific site selection for the ISG pre-commercial gas demonstration facility. Drilling has begun for the pilot and three to four months of baseline studies remain. Key objectives include receiving required permitting approvals, successful and safe commissioning and operation within agreed environmental parameters. From an operational perspective, further analysis of ISG gasifier geo-technical parameters, product consistency and quality will aid in the definition of above-ground gas processing requirements. Successful gas demonstration should enable LCK to upgrade an element of its contingent gas resource to reserves according to reserve auditor MHA. LCK expects that this will constitute the majority of its 2C resource.
Demonstration key parameters include:
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A single well pair and the single ignition of one gasifier.
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The duration of the test is expected to be between 30 days and 60 days with around 30 days of ‘full capacity’ gasification.
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LCK expects the cost of the pilot programme to be c A$16m gross, including A$2m for site investigation, A$10m for production wells and surface facilities and A$2m for monitoring wells plus c A$2m for operating costs.
Funding for the upcoming pilot test is yet to be formalised; however, LCK has the option of raising equity capital, farming-down or the use of a short-term debt instrument.
Exhibit 3: Leigh Creek appraisal site location
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Source: Edison Investment Research
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Full field development: Current concepts
From a technical perspective, full field development will be a replication of the demonstration programme described above on a much larger scale (up to 30 well pairs at the outset) and with required process facilities in order to provide pipeline specification gas for either power generation (syngas) or wholesale gas (methane).
For the purposes of our modelling, we use the parameters below for the valuation of LCEP full field development. These parameters are based on industry benchmarks and company guidance.
Exhibit 4: Full field development – key assumptions
Cost well pair (A$m) – 368 wells over field life |
2 |
Life of well pair oxygen blown (years) |
4 |
Life of well pair air blown (years) |
7 |
Gas production air blown (PJ/a) |
1.1 |
Gas production oxygen blown (PJ/a) |
2.2 |
Gas to power conversion (MW/PJ) |
11 |
Opex – Total cost of syngas, air blown (A$/GJ) |
1.0 |
Opex – Total cost of methane, oxygen blown (A$/GJ) |
3.0 |
Source: Edison Investment Research, Leigh Creek Energy
As discussed in the gas offtake options section of this note, LCK has the option of monetising syngas through sale for power generation or with additional upstream facilities as pipeline methane. In our base case, we assume gas is sold for both power generation (450MW plant) and piped export.
Exhibit 5: Utility and pipeline – key assumptions
Power plant cost (A$/kW nominal capacity) |
1,970 |
Power plant O&M costs (US$/kWh-year)* |
13 |
Pipeline cost (A$m/km)* |
1.3 |
Power plant owner IRR (%) |
8.0 |
Pipeline owner IRR (%) |
8.0 |
Syngas sales price (A$/GJ) |
4.48 |
Methane sales price (A$/GJ) |
9 |
LCEP power purchase price (A$/MWh) |
23 |
Power plant cost (A$/kW nominal capacity) |
Power plant O&M costs (US$/kWh-year)* |
Pipeline cost (A$m/km)* |
Power plant owner IRR (%) |
Pipeline owner IRR (%) |
Syngas sales price (A$/GJ) |
Methane sales price (A$/GJ) |
LCEP power purchase price (A$/MWh) |
1,970 |
13 |
1.3 |
8.0 |
8.0 |
4.48 |
9 |
23 |
Source: Edison Investment Research. Note: *Based on US norms (EIA).
Capital costs assumed for the upstream and power component of LCEP are provided below. These are based on industry norms and LCK company guidance.
Exhibit 6: Project capital costs
Gas monetisation routes |
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Power peak (PJ/a) |
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32 |
Gas export peak (PJ/a) |
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80 |
Power costs |
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Stage 1: 150MW power plant (A$m) |
335 |
Stage 2/3: 300MW + CC (A$m) |
650 |
Stage 1 compressors, treatment (A$m) |
60 |
Stage 1 other (A$m) |
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15 |
Stage 2 compressors, treatment (A$m) |
40 |
Stage 2 other (A$m) |
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15 |
Methane gas export capital cost |
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Air separation unit (A$m) |
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500 |
Gas treatment (A$m) |
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800 |
Methanator (A$m) |
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300 |
Other (A$m) |
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100 |
Conversion efficiency (syngas to methane), % |
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90% |
Source: Edison Investment Research, Leigh Creek Energy
Development risks and uncertainties
While geological risk is viewed as low given the well-defined LCEP coal resource, we see technical/commercial risks around permitting and the ability to extract gas commercially. These risks are hard to quantify due to the limited number of commercial ISG analogues. In our valuation we have assigned a 20% commercial chance of success for the project in order to quantify risk, however we flag that this is subjective and that a materially higher or lower risk would have a material impact on company valuation. Other than technical risk, we see commercial/partner risk around the provision of a power generation utility and gas pipeline by third parties. Power generation is essential for the operation of LCEP. We also include environmental risk in our assessment of risk as we have seen bans on UCG activity in the State of Queensland and a ban on fracking (not required for UCG) in Victoria and a ban being discussed in the Northern Territory.
In addition to risk, we see several technical uncertainties that could have a material impact on project economics. We highlight key uncertainties below:
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We see uncertainty relating to the quantity and quality of gas that can be commercially recovered from LCEP. We note MHA has a tight range on P10-P90 gas resource, which is positive; however, we expect to have a better handle on resource range on completion of pilot test work in 2017.
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The optimal development concept is still to be determined. Options exist for monetising resource through power or pipeline methane.
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The cost of development of LCEP remains uncertain with estimates currently at the scoping stage.
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The gas offtake route is still to be determined.
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Realisable gas prices and electricity prices remain uncertain.
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The timing of project delivery and first syngas (planned for 2020) is uncertain.
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There is uncertainty about project uptime and ability to control operational costs and key considerations.
In our base case valuation, we use best estimates for these key parameters based on company guidance and publicly available data.
As described above, we model full field development to deliver first gas in 2020. We flag that this is contingent on LCK accessing finance for the construction of the LCEP as well as third-party construction of a gas power plant/pipeline to provide LCEP with the mid-stream and power components required to monetise the project’s gas resource. Key project components required for delivery of LCEP include:
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construction and commissioning of syngas-fired power plant and associated pipeline,
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permitting and drilling of required ISG well inventory and processing facilities, and
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construction of a methane export pipeline for connection to MAPS.
We note that both mid-stream and power components are likely to be reliant on LCK’s ability to attract project partners or third parties. In this regard, LCK has a signed a heads of agreement with Shanghai Electric Power Generation Group for the establishment of a joint venture power company in South Australia. In order to address the mid-stream, LCK signed a two-year heads of agreement with APA Pipelines in December 2015, to look at the development of conceptual plans for the interconnection of the LCEP with East Coast methane gas markets.
Full field development is likely to consist of three components, in our view, and this is the basis for our LCEP valuation.
1.
Stage 1 power: 16 PJ 150MW power project with first power in 2020, subject to power partner and upstream funding. LCK estimates that the power project will take 24 months to construct.
2.
Stage 2 power: Expansion to 32PJ and 450MW power. Combined cycle generation significantly increases generation efficiency.
3.
Methane export: 80PJ of methane export. Requires syngas to methane conversion facilities and gas pipeline infrastructure.
Exhibit 7: Full field development – assumed gas production and well count to 2035*
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Source: Edison Investment Research. Note: *Valuation based on exploitation of 2P resource base to 2045.
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Gas offtake/monetisation options
Syngas to power – incentivised by SA power prices
High power prices in South Australia (see next section) support the economics of gas to power projects within the state, and the management of LCK see power generation as a key component of the LCEP. In addition, power will be required to support the energy-intensive ISG process.
There are several routes by which gas to power may become part of the wider LCEP. As mentioned above, a heads of agreement with the Shanghai Electric Power Generation Group is considering joint development of a power station in South Australia through a JV company. The structure of this JV is unclear at this point in time, as is the scale of plant to be installed and LCK’s equity in the power generation component of the project. Given these uncertainties, and until we have further clarity on the JV structure, we assume LCK does not have direct equity in the power component of the project but instead benefits from a gas for power agreement whereby LCEP sells gas to the utility and purchases electricity at a discount to market price. We understand that LCK is looking to negotiate an equity position in the associated power project; conclusion of any such negotiations would lead us to update our assumptions.
For the purpose of our analysis, we assume the power provider generates an 8% IRR buying gas from and selling electricity to LCEP as well as into the grid. Typical utility returns in Australia range from 7-10%; however, we include perceived gas supply risks (an investor in the gas powered plant would have to have certainty of the quality and availability of gas supply over the life of plant in order to make the initial capital investment) in our overall project risking of 20%. We assume that a local power project (450MW – staged in 150MW increments) will support the energy needs of LCEP as well as sale of excess generation capacity into the regional grid. Under this scenario, LCEP benefits from power access as well as electricity prices below wholesale.
Exhibit 8: Utility power output and pricing assumptions
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Source: Edison Investment Research
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Methane to pipe – high-margin methane offtake
A further gas monetisation option for LCEP involves processing syngas to pipeline specification methane such that it can be sold in to the Moomba-Adelaide Pipeline (MAPS) 230km away or, alternatively, directly at the Moomba pipeline interconnection, 350km away. This option is likely to require higher upstream processing costs, both opex and capex, as an oxygen plant would be required to achieve pipeline specification methane. We currently assume that produced ISG methane is piped 230km and tied into MAPS.
Exhibit 9: LCEP power and gas monetisation options
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As can be seen in the graph below, in our base case we assume the bulk of gas produced is sold into the piped gas market, the remainder of gas produced being used for power generation providing power for the LCEP and for sale into the SA electricity grid. It is possible that LCK pursues a less capital-intensive, modular approach to full field development to reflect funding constraints. Under this scenario we would expect a slight deterioration in project economics relative to our base case, due to the deferral of gas production.
Exhibit 10: Gas monetisation by destination
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Source: Edison Investment Research
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