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ENERGYfor QueenslandANNUAL REPORT 2016/17

Our highlightsTABLE OF CONTENTSAbout this reportOur highlightsOur values1Here for Queensland2Energy portfolio3Chairman’s statement4Chief Executive Officer’s review6Performance indicators8Strategic direction9The year ahead12Innovative energy products16Flexible and competitive portfolio18Participate in renewable energy22Enablers24Corporate governance28Financial results36Directors’ report37Auditor’s independence declaration43Financial statements44Notes to the consolidated financial statements51Directors’ declaration105Independent auditor’s report106About this reportThis report provides an overview of the major initiativesand achievements of Stanwell Corporation Limited(Stanwell) as well as the business’ financial andnon-financial performance for the 12 months ended 30June 2017.Each year, we document the nature and scope of ourstrategies, objectives and actions in our Statement ofCorporate Intent, which represents our performanceagreement with our shareholding Ministers. Ourperformance against our 2016/17 Statement ofCorporate Intent is summarised on pages 16 to 27.Electronic versions of this and previous years’ annualreports are available online at www.stanwell.comBSTANWELL ANNUAL REPORT 2016/17 CHAPTER TITLEOur safest year yet with a45% reductionin the number of injuries, from 220 in2015/16 to 119 in 2016/17.More than20,000 GWhof electricity generated,providing a secure supply ofelectricity for Queenslanders –a record high generation level.

98.0% reliabilityfor the 2016/17 year,including a world-class reliability factorof 99.2% during summer, ensuringQueenslanders are provided with theelectricity they can depend on. 145.0minvested in our power stationsto ensure we operate as efficiently andas reliably as possible. 260.6mdividend paid to the peopleof Queensland.Commenced feasibility study intothe Burdekin hydro-electric projectwhich has the potential to power30,000 Queenslandhomes with clean energy.Successful return toservice of the MicaCreek Power Stationto provide electricity for the Dugald Riverzinc mine.Commenced work onreturning Swanbank EPower Station to serviceby 1 January 2018.Our valuesAt Stanwell, we are: Safe – Everyone is a safety leader. We seek toachieve Zero Harm Today in all our workplaces. Responsible – We are reliable, we are accountablefor our actions, we make a positive contribution toour community and we are here for the long term. Commercial – Every one of us contributes toStanwell’s financial stability and performancethrough our decisions and actions.STANWELL ANNUAL REPORT 2016/17 OUR HIGHLIGHTSSTANWELL ANNUAL REPORT 2016/17 CHAPTER TITLE11

Here forQueenslandWe are an energy business with a diversified portfolioof coal, hydro and gas-fired electricity generationfacilities throughout Queensland. We are a majorprovider of electricity to Queensland and the NationalElectricity Market.We own Meandu Mine which fuels the Tarong powerstations and we have access to competitively-pricedfuel, including a coal supply agreement with a majorAustralian mining company, which provides for thesharing of revenue from its coal exports.We are owned by the people of Queensland. Providinga secure, affordable and environmentally-sustainablesupply of energy for all Queenslanders is at the heartof everything we do.We are also reinvigorating investigations into theBurdekin hydro-electric power station in NorthQueensland, which would deliver additional renewableenergy to the National Electricity Market.ABOUT STANWELL ENERGYStanwell Energy is the retail brand of StanwellCorporation Limited.We sell electricity to large commercial and industrialcustomers in Queensland, New South Wales, Victoriaand the Australian Capital Territory.Our customers include some of Australia’s majorinfrastructure, resources and service companies.The success of Stanwell Energy is driven by our abilityto listen to our customers and tailor innovative andcompetitively priced products which are supportedby one of the mostdiverse and reliableelectricity generationportfolios in Australia.We are proud of ourreliable and proactivecustomer service andour high customerretention rate.As at 30 June 2017, we employed 650 people at our sitesand offices (30 June 2016: 694). In addition, through ourpartnerships and alliances with major suppliers, manymore people work on our sites.AFFORDABLEOur portfolio of low cost, efficient and reliablepower stations means we can offer longer termand competitively priced electricity contracts. Thisprovides our customers with certainty, reducing theirexposure to market price fluctuations and supportingcontinued economic growth in Queensland.Stanwell derives the majority of its revenue fromits contracts with large energy users and retailers,with on average, a smaller portion derived fromthe spot market.SECURE AND RELIABLEOur geographically dispersed portfolio of baseload andpeaking power stations, with a combined capacity ofmore than 4,000 MW can reliably provide up to one-thirdof Queensland’s peak electricity demand. During thesummer of 2016/17, when peak electricity demandreached a new record, our generation portfolio withinthe National Electricity Market achieved a world classreliability factor of more than 99 per cent.We continue to improve our asset performance and findthe most flexible and cost effective solutions to meetthe challenges of the new energy market.SUSTAINABLEWe are a proud generator of environmentallyresponsible energy. Through our portfolio of hydropower stations, we have the capacity to generatemore than 160 MW of electricity with no greenhousegas emissions.We also operate two of Australia’s most efficientcoal-fired power stations: the supercritical 443 MWTarong North Power Station and the sub-critical1,460 MW Stanwell Power Station.In the past year we have invested more than 145.0 million to ensure our sites operate as efficientlyas possible and meet statutory and environmentalcompliance requirements.2STANWELL ANNUAL REPORT 2016/17 HERE FOR QUEENSLANDHOW THE ELECTRICITY MARKET WORKSSpot marketStanwell bids its available generation into the NationalElectricity Market (NEM) – a wholesale market forthe supply and purchase of electricity managed bythe Australian Energy Market Operator (AEMO).Through this wholesale market, supply and demandare instantaneously matched in real-time through acentrally-coordinated dispatch process. Generators offerto supply the market with specific amounts of electricityat particular prices. Offers are submitted every fiveminutes of every day. Bids to produce electricity receivedby AEMO are stacked in ascending price order for eachdispatch period. Generators are then progressivelyscheduled into production to meet prevailing demand,starting with the least-cost generation option.The spot price is calculated on a half hour basis andis the average of the six, five-minute dispatch periods.This is the price all generators receive for productionduring this period.The participants in the spot market are generators,retailers and some large energy users.Contract marketParticipants in the NEM can manage the financial risksassociated with spot price volatility. This is achievedby using financial contracts that lock in a firm price forelectricity that will be produced or consumed at a giventime in the future. These contracts serve to substantiallyreduce the financial exposure of market participants andcontribute to spot market stability. They are known asderivatives, and include swaps or hedges, options andfutures contracts.The majority of Stanwell’s revenue is from these contractswith large energy users and retailers, with on average, asmaller portion derived from the spot market.

Generation assetsCoalGasHydroFuel assetsCoalEnergy portfolioGasWaterOfficeENERGY PORTFOLIOGeneration assetsFuel assetsCoalGasHydroCoalGasWaterOfficeCAIRNSGN HFTULLYCAIRNSGMOUNT ISAEN HFTULLYMACKAYDMOUNT TION ASSETSA. STANWELL POWER STATION, Central Queensland – 1,460 MW (coal)B. TARONG POWER STATIONS, Southern Queensland – 1,843 MW (coal)C. SWANBANK E POWER STATION, South East Queensland – 385 MW (gas)D. MACKAY GAS TURBINE , Central Queensland – 34 MW (diesel)E. MICA CREEK POWER STATION, North West Queensland – 218 MW (gas)F. KAREEYA HYDRO, Far North Queensland – 88 MW (hydro)G. BARRON GORGE HYDRO, Far North Queensland – 66 MW (hydro)H. KOOMBOOLOOMBA HYDRO, Far North Queensland – 7.3 MW (hydro)I. WIVENHOE SMALL HYDRO, South East Queensland – 4.3 MW (hydro)COAL ASSETSJ. MEANDU MINE , Southern Queensland – long-term coal supply to theTarong Power StationsK. KUNIOON COAL RESOURCE , Southern Queensland – potential futurefuel supply for the Tarong Power StationsL. CURRAGH NORTH MINE , Central Queensland – long-termagreement with Wesfarmers Curragh which provides low-cost coalto Stanwell Power Station, and a revenue stream for coal exportsM. MINERAL DEVELOPMENT LICENCE 306, Central Queensland –coal resource located near the Curragh North MineWATER ASSETSN. KOOMBOOLOOMBA DAM, Far North Queensland – captures waterfor use at Koombooloomba Hydro and Kareeya Hydro power stationsGAS ASSETSO. KOGAN NORTH JOINT VENTURE , South East Queensland – providesup to four petajoules per annum of gas to Swanbank E Power Stationvia the Roma to Brisbane Gas PipelineP. ROMA TO BRISBANE GAS PIPELINE – contracted capacity of 52terrajoules per dayQ. COMET RIDGE AGREEMENT, Central Queensland – option to securelong-term gas or to exit agreement for an agreed payment to Stanwellof 20 millionSTANWELL ANNUAL REPORT 2016/17 ENERGY PORTFOLIOSTANWELL ANNUAL REPORT 2016/17 CHAPTER TITLE33ROCKA

Chairman’s statementOn behalf of the Board, I am pleased to reportanother successful year for Stanwell in 2016/17.The business achieved a strong financial result,returning a net profit after tax of 375.2 million(2015/16: 170.2 million) and paying a total dividendof 260.6 million (2015/16: 311.6 million). Stanwell’sdiverse revenue streams have continued to underpinits profitability.The total dividend payable excludes 100.0 million that has been retainedto investigate the potential togenerate hydro-electric power atthe Burdekin Falls Dam, as part ofthe State Government’s prioritiesto expand renewable generationcapacity in Queensland.Since the restructure of theQueensland Government ownedelectricity generators in July 2011,we have focused on ensuring ourplant achieves world class reliabilitystandards, optimising our hedgebooks, streamlining businessprocesses and right-sizing theworkforce to enable Stanwell toparticipate efficiently and effectivelyin all aspects of the NationalElectricity Market. Our commercialresults are also a reflection of thesuccess of these initiatives.THE MARKETCoal and gas-fired generationretiring as an increasing amount ofintermittent generation comes online;the need for expensive, short-termgeneration to fill supply gaps; andenergy policy uncertainty at anational level are driving highwholesale prices. Additionally,an extended period of very hightemperatures during summer ledto higher electricity demand inQueensland (which set a new peakdemand record) at a time when theavailability of supply from otherstates was limited.These conditions would historicallyprovide a clear signal for investmentin new baseload generation capacity;however potential investors remainreluctant to make long-terminvestments in a market where noclear policy parameters exist.4STANWELL ANNUAL REPORT 2016/17 CHAIRMAN’S STATEMENTBalancing the electricity markettrilemma of security, affordabilityand sustainability is now a centralfocus of Federal and Stategovernments, the market operatorand market participants. Recentpolicy announcements at a Stateand Federal level have sought tobalance the trilemma. However,these policies will take some timeto have a measurable impact onthe current market situation.OUR GOAL IS ZERO HARM TODAYOur firm commitment to the healthand safety of all our employees andcontractors remains a priority, andcontinues to underpin our approachto our business operations. We haveseen a 45 per cent reduction in thenumber of injuries, from 220 in2015/16 to 119 in 2016/17. While thispositive result is encouraging andreflects the commitment of ourpeople to achieving our goal of ZeroHarm Today, we recognise the needto remain vigilant and seek continualimprovement in this area to preventthe occurrence of workplace injuriesand occupational illnesses.ENSURING A LONG-TERMFUTURE FOR THE BUSINESSWith more than 4,000 MW of coal,hydro and gas generation capacitythroughout Queensland, Stanwell’sportfolio is substantial and diverse.Stanwell’s strategy seeks to leveragethese attributes to support theprovision of secure and reliableelectricity supply to allQueenslanders.

REVENUE 2016/17(B) 28.7%(C) 13.5%6.5%(E) 2.9%(F) 0.5%(D) 3.1%(A) 51.3%A. Sale of electricity – wholesaleB. Sale of electricity – retailC. Energy services revenueD. Gas salesE. Coal revenue sharing arrangementsF. OtherREVENUE 2015/16(B) 25.0%(C) 14.0%9.1%(E) 3.1%(F) 0.6%(D) 5.4%(A) 51.9%Our strategy seeks to: ensure our plant can flex to meetthe demand patterns of a marketwith a higher proportion ofrenewable energy; participate in renewable energy,through direct involvement withrenewable projects and via powerpurchase agreements withrenewable project proponents;and work with large customers andrenewable project proponentsto develop innovative energyproducts to meet the rapidlychanging needs of the market.During 2016/17, Stanwell madeimportant advances in all ofthese areas.We began the pre-feasibilitystudy for a hydro power stationon the Burdekin Dam in NorthQueensland. If the results of thispre-feasibility study are positiveStanwell is expecting to completethe business case by mid-2018 andproviding all development approvalsand agreements with landholdersare in place, construction of thehydro generation plant wouldcommence in 2020.We also initiated a program of workto ensure Stanwell is positioned tocontinue to provide baseloadelectricity in a market with a highproportion of intermittent generation.There are a range of areas we areexploring, one of which includesseeking an understanding of thefull capabilities of our generationassets, in terms of their operatingflexibility and their related fuel supplyrequirements. Stanwell is alsocontributing to discussions on theevolution of the National EnergyMarket and associated regulatoryframework across our industry.Stanwell continues to engage closelywith large users of electricity todesign long-term contracts whichprovide price certainty andaffordability. We are also workingclosely with large industrialcustomers to explore their long-termenergy requirements and togetherdevelop options (which in someinstances involve partnerships withrenewable energy proponents) tomeet those needs.ACKNOWLEDGMENTSI would also like to commend theefforts of our Chief Executive Officer,Richard Van Breda, his executiveleadership team and all Stanwell’semployees for their dedication andcommitment in delivering thestrong operational and financialperformance of the business.Technology and the associatedregulatory and market opportunitiesare moving rapidly, and marketparticipants will need to be agile torespond to them. With our proventrack record of successful businesstransformation, diverse portfolio andorganisational capability, Stanwell iswell positioned to respond to andprosper in, the energy market ofthe future.Dr Ralph CravenNon-executive ChairmanI would like to thank our shareholdingMinisters for their continuedsupport of Stanwell’s strategyand business operations.My fellow directors have beentremendous in their focus throughoutthe year, and I thank them fortheir support, advice and theexpertise they have provided inguiding Stanwell.STANWELL ANNUAL REPORT 2016/17 CHAIRMAN’S STATEMENT5

Chief Executive Officer’s reviewThe unprecedented change within the energymarket continues. There is a need for clear andconsistent policy settings to facilitate this changeand this will require strong, forward-thinkingleadership – both politically and from withinthe industry.As a Government OwnedCorporation with a high performingand diverse portfolio of thermaland renewable generation assets,Stanwell is well-positioned tocontribute to a secure, affordableand sustainable energy sector forthe benefit of Queenslanders.Throughout the year, we havecontinued to focus on the reliabilityof our assets with the primaryobjective of providing security ofelectricity supply. As a result ofprudent investment in assetmanagement, and the expertiseand dedication of our operationsand trading teams, our plant wasable to operate efficiently and reliablyin response to the market. Duringthe 2016/17 summer, we achieveda world-class reliability factor ofmore than 99 per cent.Despite the significant change facingour business, our number one priorityremains the health, safety andwellbeing of our people.SAFETY PERFORMANCEOur unrelenting focus on safetyhas led to an improving trend inour safety performance across thebusiness. In 2016/17, we achieveda record low in the number andfrequency of serious injuries. Thiswas achieved during a period ofunprecedented activity at our sitesand was the result of the consistentand passionate focus on safety byall of our people.6One of our many measures of safetyperformance is Total RecordableInjury Frequency Rate (TRIFR). At theend of 2016/17 we recorded a TRIFRof 5.32. This is our lowest TRIFR onrecord and a significant reduction onthe previous year’s result of 10.11.While this result is pleasing andconfirms that we are focusing onthe right things, we can not affordto be complacent as we strive toachieve our goal of Zero Harm Today.The achievement of Zero Harm istransient, requiring a reset and newperspective every day in our questfor an injury free workplace.In the past 12 months, our emphasison safety has been expanded toinclude improving the physical andmental wellbeing of our people. Inthis regard, we offered a voluntarywellness program to all our people,which included access to healthchecks and body composition scans;and we have taken steps to tacklethe issue of domestic and familyviolence by partnering with WhiteRibbon. We were awarded aseven-star rating from the ServicesUnion for our efforts to providesupport to our people dealing withdomestic and family violence.FINANCIAL PERFORMANCEOn the back of our strong electricitymarket contract position, andeffective cost management and plantreliability initiatives, the businessdelivered a net profit after taxof 375.2 million in 2016/17. Thisenables the business to return a totaldividend to shareholders of 260.6million. The total dividend excludesthe retention of 100.0 million as anSTANWELL ANNUAL REPORT 2016/17 CHIEF EXECUTIVE OFFICER’S REVIEWinvestment towards the costof developing the BurdekinHydro-electric power plant,in keeping with the directionreceived from our shareholderson 13 June 2017.The National Electricity Market isa very competitive, highly regulatedmarket and wholesale prices in2016/17 reflect the outcomes ofchanging supply and demandbut also the uncertainty of energyand climate change policy.High wholesale electricity priceswere the result of a range of factors:the closure of large, baseload powerstations; increased electricitydemand in Queensland as a resultof extreme weather events andindustrial demand from the liquefiednatural gas projects; and gas supplyconstraints. In the first quarter of2017, the east coast of Australiaexperienced record hightemperatures increasing demandsignificantly. During February,Queensland experienced its highestmaximum electricity demand onrecord of 9,369 MW,well exceeding the record set in2016 of 9,097 MW.Importantly, we continued to havea strong focus on cost leadershipthroughout the year, and deliveredsignificant savings by reducingour operating costs and optimisingour capital expenditure. Thesettlement of the Wesfarmers’dispute ( 34.0 million) an

F. KAREEYA HYDRO, Far North Queensland – 88 MW (hydro) G. BARRON GORGE HYDRO, Far North Queensland – 66 MW (hydro) H. KOOMBOOLOOMBA HYDRO , Far North Queensland – 7.3 MW (hydro) I. WIVENHOE SMALL HYDRO, South East Queensland – 4.3 MW (hydro) COAL ASSETS J. MEANDU MINE, Southern Queensland

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