Fourth Quarter 2019 Update

Fourth Quarter 2019 Update

  • • GAS-TESS business case driven by value not efficiency

  • • GAS-TESS pilot lessons being used for commercial Mark II model

  • • Aurora Solar Energy Project in Port Augusta will be clean power station with TESS-GRID

  • • Technology development focus on scaling silicon storage to meet needs of new projects

  • • Cash position $3.9m at end quarter and circa $2m R&D refund in process

1414 Degrees is pleased to provide its December 2019 quarterly update.

The quarter saw the maturing of your Company’s strategy of obtaining commercial pilot sites for its devices. As many shareholders would be aware, the industrial scale of the Company’s storage devices means we need to trial them in operating plants that can use both heat and electricity outputs:

  • • GAS-TESS: SA Water provided us with the opportunity to trial our prototype GAS-TESS unit at its Glenelg Wastewater Treatment Plant (WWTP), allowing us to determine the operating specifications, and perhaps even more importantly, providing the basis to design and demonstrate a commercial product that can be sold with confidence into the very large wastewater utility market.
  • • TESS-GRID: To fulfil our prospectus objective of grid scale storage, we acquired the Aurora Project near Port Augusta and two other solar projects in NSW through the purchase of Solar Reserve’s Australian subsidiary, now renamed SiliconAurora Pty Ltd.
  • • TESS-STEAM: In December we delivered the technical feasibility study for a TESS-STEAM pilot at the Stone & Wood brewery in northern New South Wales (originally intended for Pepe’s Ducks).

These projects are critical to your company realising the revenue potential of its technology worldwide. For example, considering the GAS-TESS as a replacement for gas engines used by global wastewater utilities suggests a market potential of billions of dollars. The market for the TESS-GRID is potentially even larger, as the worldwide energy market transitions to increasing amounts of intermittent renewable generation requiring energy storage for reliability.

The basis for this earnings potential, which will be demonstrated through the Aurora Project, is the large number of revenue sources available through its versatility of operation. For example, the TESS-GRID is largely unique in its ability to tap into both recurrent and opportunistic revenue sources, ranging from the sale of heat and electricity under PPA’s to current and future proposed grid stability payments. The latter include robust grid stability services that can only be supplied by turbine generators or synchronous condensers. However, in contrast to turbine generation, the condensers have no ability to provide recurrent income, indeed they are a passive cost of renewable generation.

The TESS-GRID will also be able to charge from the grid at high current flows sourced at times of excess generation – therefore low priced – and regenerate at high rates for longer periods than batteries, while also supplying heat to displace gas and reduce emissions. The Aurora Project will allow us to demonstrate and confirm our product’s potential to a global market.

SA Water Glenelg Wastewater Treatment Project

During the quarter the pilot GAS-TESS Mark 1 (Mk I) at the Glenelg WWTP provided important data and operating specifications to drive its business case. Importantly the lessons learnt from this unit are also being used to define the specifications for the production model of the GAS-TESS Mark II (Mk II). A planned series of capability upgrades commenced with installation and commissioning of a co-firing burner to increase the temperature delivered to the turbine. This new burner system is fully functional with first tests showing an increase in temperature of the gas stream consistent with engineering predictions. This will significantly increase both the power output and efficiency of the turbine. Testing has been suspended while our engineers and the manufacturer resolve a leak in the external heat exchanger. Further improvements of the Mk I are planned, however, some will be best implemented with the optimised Mk II device.

GAS-TESS Business Case: We are expecting that the business case will be ready in time for a midyear decision point for the Mk 1 device. We are progressing with the design of a larger Mk II device, optimised for the plant, for delivery within 12 months of order.

The current pilot device at the Glenelg plant was the result of an invitation from SA Water to trial a TESS at minimal cost to compare with gas engines. The focus is on how to deliver value from biogas, with the added benefit of timeshifting to increase the energy value inherent in the biogas.

We do not yet know the operating efficiency of the gas engines for direct comparison to the TESS in the context of the Glenelg WWTP. The rated electrical efficiency of the engines is not attainable because the biogas has low methane content compared to natural gas. The use of the gas engines is further complicated by the presence of hydrogen sulphide (H2S) and silicones (also known as siloxanes) in the gas. The H2S degrades the gas engine oils, while the silicones oxidise to abrasive silica, causing wear. By contrast, the TESS burners fully combust the biogas without moving parts or lubricants that could be contaminated, and so do not incur the high maintenance costs of the gas engines.

Therefore, the performance of the GAS-TESS should not be measured against the CHP efficiency of the gas engines, but by its ability to timeshift the value of the biogas and reduce operating and maintenance costs compared to engines. The average electricity price profile on the National Electricity Market (NEM) means that the ability to timeshift electricity generation can result in a substantial uplift in value compared to continuous output from engines without energy storage.

I believe this point is not well understood by commentators who focus only on efficiency when comparing our devices to batteries or gas engines. These devices and the TESS have advantages and disadvantages that go beyond just their efficiency as machines. They must be compared in terms of their value in transforming input fuel to output energy. It should be noted that this value is dependent on the operational situation and the timing of energy imports and exports to the electricity market or behind the meter considerations. The graphs below illustrate this principle. Illustration available at https://1414degrees.com.au/gas-tess-illustration/ 

A further complication is that SA Water’s current gas engines are fully integrated into the WWTP whereas the TESS is not. The Glenelg WWTP has also recently installed solar PV generation, further complicating the value calculation – the biogas must be burnt even while the solar PV is generating, and the GAS-TESS will do this and store the energy for regeneration when the sun sets. These considerations explain why the business case is a complicated exercise and how, even though the electrical efficiency of the TESS (like any storage) is less than direct generation in engines, the TESS can generate more revenue. I hope this clarifies that the preparation of the business case must take into account many matters, not the least being maintenance cost. On these considerations we estimate that our business case will be very competitive.

Aurora Solar Energy Project

Your Company acquired the Aurora Solar Energy Project through the acquisition of Solar Reserve Australia II Pty Ltd (renamed to SiliconAurora Pty Ltd) in December. It is approved for a 150MW concentrated solar plant (CSP) plus 70 MW of solar PV. As stage 1, 1414 Degrees is planning to progress with 70MW of Solar PV and then proposes a lower risk staged development of up to 400 MW of solar PV charging several GWh of TESS-GRID modules distributed on the transmission grid. This TESS-GRID storage could also be charged from third party solar and wind farms under PPA, or through electricity purchased on the NEM at times of low demand. Our analysts have been undertaking financial modelling showing positive earnings from multiple sources including network stability revenues, adjusted for current and future trends in the NEM.

The pairing of solar PV generation with 1414 Degrees’ TESS-GRID is a new clean Silicon Power Plant technology offering increased reliability through firmed electricity and heat supply that can be distributed through the network. The ability to timeshift the power supply will mitigate future issues with margin loss factors (MLFs) that are affecting investment in solar projects. The TESS-GRID can also generate revenues from grid stability services in support of new solar PV projects.

1414 Degrees appointed Marie Pavlik as CEO of its subsidiary company, SiliconAurora Pty Ltd, to deliver the Aurora Solar Energy Project. Marie has been working closely with our Business Development Manager, Maretta Layton, meeting with key stakeholders in Port Augusta, including the Council and community.

The Aurora Project is positioned in the “Iron Triangle” industrial area as shown in the illustration below. Over the past two years, our business development team has been contacted by industries seeking to replace gas consumption with emissions free heat from our TESS-GRID. This Project will facilitate our ability to generate recurrent revenue from long term heat contracts with these customers. While there is currently no direct value in emissions reduction in Australia, industries are becoming increasingly aware of the need to address emissions reduction, and we expect that this will lead to new value streams from carbon offsets and air quality measures in the future. We also expect that regulators will move toward providing a charge for storage as a service for grid reliability and security, replacing very substantial government subsidies for construction of pumped hydro and batteries. This will encourage investment in lower cost and environmentally responsible grid stability solutions, such as the TESS-GRID.

Stone & Wood brewery project

During the quarter a feasibility study was prepared and sent to the Stone & Wood brewery management. The study recommended replacing the current LPG heat supply with a TESS-STEAM generating steam into the existing accumulator. Electricity generation would follow in a later stage. Although the efficiency of the device is high, the pricing structure for electricity supply in the New South Wales Government’s distribution grid is not conducive to timeshifting of renewable generation, because the utility charges by the amount of electricity transmitted rather than a connection charge based on the maximum as, for example, is the case in South Australia. Our business development team have contacted the utility to seek an arrangement that encourages offpeak energy storage. This demonstrates the complexity of current business cases based on geographical location, both within Australia and globally for all storage technologies. As part of the transition to renewables, and the recognised need for storage, we expect such market mechanisms will evolve.

Technology

The imminent requirement to deploy large TESS units for the two proposed commercial pilot projects, in addition to the GAS-TESS at Glenelg, has provided further impetus to our core technology team developing larger scale silicon energy storage solutions. To protect our IP, we do not comment in detail on the nature of these exciting initiatives, but they include containment of molten silicon phase change materials (PCMs) in combustion environments from 1000°C to 1500°C, supported by advanced research laboratories in Europe. The scalable storage solution will facilitate higher electrical efficiency and heat output, suitable for both the biogas and the electrically charged versions. The aim is to achieve a rated electrical efficiency of up to 44% from a co-generation turbine system, substantially increasing the competitive position of our CHP solutions.

Finance

During the quarter the Company reviewed its R&D tax structuring with KPMG prior to lodging its FY19 tax return. This review resulted in a decision to recognise R&D assets for tax purposes and consequently depreciate assets over life of the projects. This will change the timing of claims with a likely revision to prior year tax returns and the deferral of some rebates into future years, but is not expected to have a material effect on the total amount of rebates paid to the Company over the project life.

Your company has sufficient cash reserves at present as it awaits payment of its FY19 rebate from the tax office. The magnitude of our tax rebates underscores the fact that our capital requirement on an annual basis is 43% less than the cash expended. Nevertheless, the one-off purchase of the SolarReserve assets depleted cash reserves and working capital is required to advance the Aurora Project to financing and prepare the GAS-TESS business case for decision mid-year. It is therefore appropriate to review the financial outlook for the company.

Capital requirements:

The GAS-TESS project has been funded in partnership with the SA Government Renewable Technology Fund grants scheme with a final grant remittance expected. As part of the business case modelling, our operations team is evaluating the relative merits of expending an additional $1m to substantially upgrade the capability of the current device or preserving capital toward building the optimised Mark II model.

The financial plan for the Aurora Solar Energy Project includes $110 million of loan funding allocated by the federal government for the Port Augusta based CSP project. Our case is that the modularity of the TESS-GRID, and its ability to charge from grid as an alternative power source, provides more reliability and flexibility than the CSP alternative. Moreover, our revised development plan calls for less upfront capital and performance risk compared to the CSP because capital funding is spread over several stages of generation and TESS storage construction. The first stage includes a TESS-GRID pilot to provide confidence for investment in the following stages.

Earnings outlook:

GAS-TESS earnings outlook: Management are confident that the company faces a large uplift in value from the commercialisation of its products. According to the World Biogas Association investment in the Australian global biogas industry was estimated at $3.5 – $5 billion in the five years to 2020. We expect the GAS-TESS to demonstrate commercial readiness early in the next financial year through the sale of the current unit and/or an optimised Mark II version, thereby opening a potential billions of dollars a year global market over coming decades.

TESS-GRID earnings outlook: The TESS-GRID is aimed at a potentially larger worldwide market than the GAS-TESS, as intermittent renewable generation grows and emissions reduction measures include the substantial gas heat market. Further, our technology is likely to be recognised as preferable when the less desirable aspects of current grid stability technologies start to be realised, for example, the environmental costs of mining increasing quantities of battery components and disposal of vast numbers of exhausted batteries. We expect to deploy the TESS-GRID in infrastructure-funded vehicles supported by revenue from heat and electricity sales with additional revenues from grid stability services. SiliconAurora Pty Ltd is the first of these special purpose vehicles (SPVs), and we are working on the business case to present to institutions and shareholders who wish to directly participate in this income stream. The intention is for 1414 Degrees to own the projects through the SPVs, which will be financed by underlying investment vehicles. Solar Reserve used this scheme, registering a financing subsidiary we will rename SiliconAurora Finco.

We are working hard to realise value for shareholders and I look forward to reporting further progress.

Dr Kevin Moriarty

Executive Chairman

 

 

14D closes deal on Aurora Project

14D closes deal on Aurora Project

  • – Aurora Solar Energy Project near Port Augusta now fully owned by 1414 Degrees 
  • – SolarReserve Australia II Pty Ltd to be renamed SiliconAurora Pty Ltd 
  • – Capital servicing requirements to be staged with progressive generation and storage 
  • – Marie Pavlik appointed CEO of SiliconAurora

1414 Degrees (ASX:14D) “The Company” is pleased to announce it has completed the purchase of SolarReserve Australia II Pty Ltd, with the intention to rename it SiliconAurora Pty Ltd (“SiliconAurora”) with a new board.  

SiliconAurora owns the advanced Aurora Solar Energy Project (“Aurora Project”) near Port Augusta in South Australia and two early stage solar sites in New South Wales. 

The Company has been meeting with key stakeholders while progressing technical and economic modelling for the Aurora Project. 1414 Degrees’ Executive Chairman, Dr Kevin Moriarty said that its modelling showed positive revenues from using its TESS-GRID silicon storage technology with the proposed solar PV generation. “Our plan is to progressively increase the generation at the Aurora Project. This will limit capital servicing requirements while our technology is proved at increasing scale to more than 1,000 MWh.”   

1414 Degrees has appointed its Commercial Development Manager, Marie Pavlik, as CEO of SiliconAurora to drive the development of the Project. Marie will commence in January after finishing her senior role with ComAp, a global leader in generator controllers and demand management systems. Marie has been in the leadership team developing ComAp in the Asia Pacific Region for six years, after relocating from Prague where she served an additional eight years with the company. Marie brings extensive experience in renewable energy, market development and commercial growth. She has a Master of Business Administration, Master of Electrical Engineering and is a graduate of the Australian Institute of Company Directors.

“This is a key appointment for a milestone project for 1414 Degrees. We will demonstrate our grid scale thermal storage by systematically building a power station with firmed renewable generation,” Dr Kevin Moriarty said. 

1414 Degrees acquiring Aurora Project near Port Augusta

1414 Degrees acquiring Aurora Project near Port Augusta

  • – 14D acquiring SolarReserve Australia II Pty Ltd
  • – TESS-GRID to provide electricity firming services
  • – Refocus to 400MW solar farm with progressive storage capacity to several thousand MWh
  • – To be developed and financed in 14D subsidiary company

1414 Degrees (ASX:14D) is set to acquire SolarReserve Australia II Pty Ltd, which owns the Aurora Solar Energy Project near Port Augusta in South Australia and two solar sites in New South Wales.

The Aurora Solar Energy Project has SA Government development approval for a 70 MW solar PV farm and 150 MW of generation from a concentrated solar thermal plant (CST). South Australian company, 1414 Degrees proposes to use the site to pilot its world leading TESS-GRID technology. The electricity firming services will be developed to similar scale as the previous project.

“We will be using South Australian technology to create a large-scale, thermal energy storage plant near Port Augusta able to supply reliable power on demand to the national grid,” 1414 Degrees Executive Chairman Dr Kevin Moriarty said.

Government and stakeholder approvals will be sought to vary or submit a new development application to provide up to 400MW of solar PV together with the installation of the TESS-GRID technology. 1414 Degrees aims to progressively scale up the storage capacity to several thousand MWh. A TESS-GRID at this scale would be able to supply many hours of dispatchable electricity with spinning reserve from its turbines and a range of frequency control ancillary services (FCAS) to support grid stability.

1414 Degrees’ electrically charged TESS-GRID could also buy and store electricity generated by other renewable farms on the high voltage transmission network in the region, strengthening firming services and earnings from market arbitrage.


Image: 1414 Degrees concept for Aurora Solar Energy Project with TESS-GRID

Heat from the TESS-GRID can power Smartfarms, protected cropping greenhouses and industry, and 1414 Degrees is investigating production of hydrogen using the excess heat from its turbines. Progressing the development will create jobs during construction, then long term jobs for operators of the generation and storage plant and industries using the heat energy.

1414 Degrees Executive Chairman, Dr Kevin Moriarty said that the site had several clear advantages for the development of the TESS-GRID solution.

“The unregulated high-voltage transmission line to the OZ Minerals Carrapateena and Prominent Hill mines is being constructed along the boundary of the Aurora Solar Energy Project, and provision has been made for a substation at the existing Aurora site with direct connection to the Davenport substation in Port Augusta. Davenport is part of the major transmission networks to Eyre Peninsula, Adelaide and the new interconnector to New South Wales. This project is currently not impacted by marginal loss factors (MLF) that have constrained output from renewable farms in remoter parts of the national grid,” he said. “We will reopen negotiations with OzMinerals and ElectraNet as soon as the acquisition is complete” he added.

Dr Moriarty said that the Aurora Solar Energy Project will be developed and financed in the subsidiary company, and 1414 Degrees will control and manage the Project. “We’ve had a lot of interest from infrastructure and investment funds seeking to invest in the potential of our technology and this large solar farm will generate significant revenues while supporting the staged development of our large-scale energy storage technology. The advanced status of this project is expected to result in early revenues from energy sales. We will avoid high capital requirements by staging the development.” He said that the Company proposed to offer its more than 3,000 shareholders an entitlement to directly invest in units of the Aurora Solar Energy Project alongside the institutional funds.

The $2m acquisition will be funded by the Company’s cash reserves.

Fourth Quarter 2019 Update

Third Quarter 2019 Update

HIGHLIGHTS

  • – First operating results of GAS-TESS confirmed efficient biogas burning. Modifications underway to increase electrical output 
  • – Data for business case to replace Glenelg engines to be provided to SA Water by end 2019 
  • – Potential for early revenues from sale and trading of energy to facilitate TESS rollout  
  • – Scalable silicon storage technology under development with promising early results 
  • – Engineering reorganised to scale up silicon thermal storage technology and focus on efficiency  
  • – $7.7m cash at end quarter to be boosted by a substantial R&D rebate in November

 

1414 Degrees is pleased to provide its September 2019 quarterly update.  

 

Finance 

The Company’s cash balance remains strong because monthly outgoings have decreased following the commissioning of the GAS-TESS.  Over $1.5m has been advanced for a bespoke turbine, heat exchanger and storage components for the next TESS plant. Total assets are now more than $17m. The $7.7m cash balance at the end of the quarter is expected to be boosted with a substantial R&D rebate in November. 

 

GAS-TESS operations 

Following its successful commissioning, the GAS-TESS has been undergoing performance testing by our engineering team while delivering heat to the biological digestors and electricity to the site. The team reported first operational results in the quarter, showing near target combustion efficiency in burning biogas. This means the GAS-TESS is effective for disposing of the waste gas and has competitive advantages over reciprocating gas engines because it burns at a higher temperature, makes very little noise and should have reduced maintenance costs because the gas does not need pre-treatment. 

The engineering team are now modifying the prototype GAS-TESS to increase heat flow so the turbine operates at its maximum efficiency for longer duration. The aim is to provide operational data by the end of December so SA Water can model the business case for the GAS-TESS compared to its current engines, and our engineers can start on the design of an enhanced production model. 

In late October the device started operations under SA Water direction to test it in various scenarios, including integrating with the site solar PV and existing engines to contribute to SA Water’s target of zero net electricity cost.  

 

GAS-TESS taps a very large market 

There is an immense potential value stream from the market for our GAS-TESS, one that is fortunately independent of the vagaries of the electricity market or uncertainties in new technologies. Recently we hosted a delegation of Singaporean wastewater engineers who requested to inspect the GAS-TESS and they confirmed what we have been told by water utilities in Australia and overseas – the available reciprocating gas engines are costly for burning corrosive biogas. To consume all of the biogas generated by the Glenelg site per day would require TESS units of between 4 or 12 times the capacity of the current unit, depending on how the TESS is operated. Translating this to the global market indicates tens of thousands of GAS-TESS would be needed to replace all existing engines, before considering the many sewerage plants that do not tap their potential energy resource. 

 

Business development 

The feasibility study for TESS integration into the Stone and Wood brewery is expected to be completed by the end of the year. The current indications are that a system to fully replace LPG will need between 50 and 100 MWh of storage, potentially making it a suitable site for the TESSGRID test module as well as the first commercial pilot for an electrically charged TESS. 

Your Company’s analysts have been preparing the business case for wind and solar power purchase agreements (PPAs) to supply commercial and industrial customers with TESS based energy solutions.  

We also expect to soon report modelling of cash flows from firming renewable energy using PPAs with financial hedging that can be replaced by physical hedging from storage as our TESS units are integrated into the NEM. 

We continue to receive worldwide expressions of interest in purchasing our devices, or heat and electricity energy solution packages. We assess these for early revenue potential. 

 

Technology and engineering 

Our Chief Operating Officer Dr Jordan Parham has created three technical teams to improve delivery on your Company’s objectives to commercialise scalable TESS solutions.  

The R&D team are focussed on technology to fully exploit silicon’s lower unit cost of energy storage to deliver large scale energy storage. They have been testing a new silicon containment technology to provide a solution for all scales and devices. A materials scientist will soon join the team to accelerate development and oversee our collaborative work with several Australian and international research organisations and suppliers. 

Our new Thermal Systems Engineering team will focus on optimising the system design and components to maximise the performance of the TESS system. They are fine tuning a complete energy model of the TESS to enable prediction and optimisation of equipment and storage configurations to suit customer requirements. This will mean we can design and build the most efficient configurations as we scale to TESS-GRID capacity. Business Development will use the Thermal Systems team for concept design and performance modelling. 

The Project Engineering team will focus on delivering successful projects, such as the remarkably successful, first of its kind GAS-TESS. They will perform the detailed engineering, project management and oversee construction to successfully integrate heat store technology and system designs into products that deliver value for customers. 

Business development will draw upon these resources as required to conduct feasibility studies, such as that for Stone and Wood, providing costing, timing and scope for integration.   

To assist this reorganisation, Matthew Johnson has resigned his part time position as Chief Technology Officer effective 25 October 2019. He continues to contribute seminal ideas as consultant and a major shareholder. 

 

Energy markets and commercial opportunities 

It is encouraging that Australian regulators are proposing changes that could recompense providers of firming power supply and storage such as provided by our technology. Without such changes, grid storage security will continue to require subsidies and grants. With such changes, an open market for firming and storage will attract investment in the most cost effective technologies. 1414 Degrees grid scale TESS is targeted at being the most effective storage technology, tapping a much wider energy market base than, for example, batteries or pumped hydro. 

Although a number of regulatory bodies have asked for submissions on ways to provide secure, lower cost electricity, they are yet to look beyond electricity demand and consider the impact of electrifying the much larger heat market. Changing emphasis to consider renewable electricity as a replacement for fossil fuels like gas could reduce the emphasis on decommissioning reliable coal generation to achieve carbon reduction 

Electrifying some of the heat energy market will enable more investment on existing network infrastructure while reducing the proportion of network charges paid by current electricity consumers because it could greatly enlarge the pool of electricity users.  

Of course, energy demand in advanced economies is so large that many technologies can coexist in providing future solutions, but large scale energy storage could also reduce the urgency to develop new hybrid energy technologies, such as the proposal to use renewable electricity to produce hydrogen by electrolysis, that could in turn be mixed with gas or exported. Hydrogen has advantages as a transportable energy source, but might be best used to power commercial transport, which consumes substantially more energy than the current global electricity market. 

Interestingly, 1414 Degrees TESS could more efficiently provide both energy storage and lower cost hydrogen production. The high temperature heat output from the turbines could power hydrogen production systems more efficiently than electrolysis-based systems and increase the overall efficiency of a TESS. The effect of such a combined energy output could reduce or eliminate our need to co-locate with process industries so we intend to progress this exciting possibility for our technology. 

Our immediate focus is on achieving sales of our vanguard GAS-TESS devices in the next twelve months and on developing recurrent revenues from energy sales and trading. 

 

Dr Kevin Moriarty  

Executive Chairman

14D Board Changes

14D Board Changes

1414 Degrees is pleased to advise that Mr Ian Little and Ms Penelope Bettison have been appointed as Directors of the Company. These appointments strengthen the Board at an important time in the Company’s development. The new Directors bring significant experience and expertise to the Board.

 

Mr Little was until recently the Chief Executive Officer of the Petrosys Group, a global software company providing services to the oil and gas industry. He started work with Arthur Young & Co as a Chartered Accountant in New Zealand in the late 1970’s. He then moved to the oil industry, initially in Indonesia, and eventually with Shell, where he worked for over a decade in Australia, London and in the Pacific Region. He became involved with the natural gas sector when he was invited by Victoria’s Treasurer, Alan Stockdale in 1993 to initiate gas industry reform, including the privatisation of the State-owned Gas & Fuel Corporation. Ian was formerly the CFO for GPU GasNet in Victoria, before joining Envestra as Chief Financial Officer in 2000, and becoming Managing Director in 2003. Envestra Ltd grew to become an ASX200 company and was eventually sold in a contested takeover in 2014 for $2.5 billion.

 

Ms Bettison has 20 years’ experience in marketing and business management and is the Company’s Head of Corporate Services. She founded and was a Director and Brand Strategist at Pitstop Marketing, investing in an early seed round and consulting to 1414 Degrees to prepare it for its initial public offering. She sold her interest in Pitstop Marketing to accept an executive role with the Company in 2017, guiding the corporate development and people and culture. Her experience spans a wide range of industries including financial services, engineering, education, government, business events and tourism. Penelope has a Bachelor of Business, is a Graduate of the Australian Institute of Company Directors, a Fellow of the Australian Marketing Institute and is an accredited Certified Practising Marketer.

 

Non-Executive Director Mr Robert Shepherd has advised the Company that he will retire from the Board at the 2019 AGM, and not seek re-election. Mr Shepherd is a founding investor and Director. The Company wishes to express its sincere gratitude to Robert for his significant contribution to the Company.

GAS-TESS Pilot Project Update

GAS-TESS Pilot Project Update

  • – GAS-TESS up and running after scheduled shutdown to assess O&M requirements
  • – O&M a key factor in business case for wastewater treatment utilities
  • – Improvements to be fast-tracked to provide SA Water with key data for evaluating business case
  • – Proposed review of revenue settlement due to delays in export approval to NEM 

Operational status

The GAS-TESS was recently shut-down to install additional instrumentation and inspect it internally. This demonstrated that the unit was in good condition. An estimate for operation and maintenance (O&M) costs can now be prepared, these being a key factor for utilities evaluating biogas burning equipment over their lifetime. The GAS-TESS is now back online supplying electricity and heat to the wastewater treatment plant (WWTP). Our engineers will continue test runs to refine operating characteristics and anticipate working with the Glenelg WWTP operators to evaluate the benefits of the TESS integrated with the plant systems from late September.

Commercial arrangements under the settlement agreement are underway but SA Water has advised there may be a long delay to obtain approval to export electricity to the grid. The addition of solar generation at the same time as the GAS-TESS and the current, interim network restrictions have imposed operational constraints on the site and hence GAS-TESS, so the company proposes to review the settlement agreement with SA Water.

Current performance status

A wide range of tests have been conducted to characterise the actual GAS-TESS performance compared to original design calculations and predictions. Analysis of the GAS-TESS performance is most readily obtained from simultaneous operations of the burners using biogas at the same time as energy is produced by the turbine, as this provides steady state conditions for simpler comparison with mass and energy balance calculations.

Under this regime, the combustion system burning the biogas is operating at 82.7% efficiency, almost at design specification, and some modifications to operational procedures are expected to improve performance. As expected, in this first testing phase of configuration the device is delivering only 39.8% CHP efficiency because the turbine is operating at half its potential efficiency. This is due to a number of factors but primarily caused by low heat transfer through the heat store to the energy recovery system (ERS). This results in a lower ERS gas outlet temperature and energy content, ultimately resulting in a turbine inlet temperature well below optimum.

Next Steps

As planned, the Company will upgrade the storage to increase heat transfer once the overall systems are validated. The project agreement provides for two years of operational tests, and we intend to upgrade the GAS-TESS performance in several stages.

However, the business case for the GAS-TESS is not driven just by return trip efficiency because the biogas is a by-product of a WWTP operation that must be burnt on a continuous basis whereas the heat and electricity loads of a plant and electricity export value are variable. This is one reason that SA Water proposed a GAS-TESS device – to time shift the energy supply to maximise the value of the biogas, something that the engines cannot provide. The second reason is to minimise O&M costs.

Following the positive internal inspection, some enhancements will now be fast-tracked, where possible, to provide SA Water with key performance and O&M data for evaluating the performance of the TESS compared to engines. Other performance enhancements will be rescheduled for inclusion in the design of the next version of the technology.