Water – a top priority for Tarong Power Station

Current weather conditions are placing an increased reliance on the diminishing water catchments across Australia. These water catchments store water for use by various parts of the local community including drinking water for residents, irrigation and Electricity generation.

Stanwell recently announced water sustainability is a top priority for its Tarong Power stations located within the South Burnett region.

Water is an essential necessity for thermal power stations to make electricity. The water is used for steam production and cooling.

Tarong power station consisting of 4 X 350MW thermal units and a 443MW supercritical unit. These units obtain their water from two sources, the primary source is Lake Boondooma and secondary from a pipeline using water from Lake Wivenhoe or recycled water produced under the Western Corridor Recycled Water Scheme.

Stanwell corporation is focusing on mitigating the impact on the South Burnett community by reducing the usage of water from Lake Boondooma to ensure the South Burnett community have access to drinking water. Initial initiatives used at the power station to reduce the reliance on Lake Boondooma water include the use of recycled water from the ash dam and stormwater.

Tarong Power Station have access to water from Lake Wivenhoe if Lake Boondooma drops below 34%, currently the Lake Boondooma’s level is 22.95% as of the (Source: SEQWater 2020). Lake Wivenhoe water also comes at an added cost. Water is currently the highest operating cost for Tarong Power Station.

An alternative to using Lake Wivenhoe water is the use of purified recycled water from the Western Corridor Recycled Water Scheme. The scheme is not currently in operation, however when operating and supplying water to Tarong Power Station it will add significantly to the costs of generation.

Tarong Power Station first used purified recycled water from the Western Corridor Recycled Water Scheme in June 2008 following a similar water supply limitation brought on by the 2008 drought.

As a result, the increasing marginal cost to generation caused by the higher water cost, Tarong Power Station may change its operation and reduce generation or dispatch its units at higher prices. Under either scenario this may increase the cost of wholesale energy in Queensland.

If you have any questions regarding this article or the electricity market in general, call Edge on 07 3905 9220 or 1800 334 336.

Semi-scheduled and Intermittent Non-scheduled Generators urged to advise of De-ratings

A new market notice within the National Electricity Market (NEM) posted by the Australian Energy Market Operator (AEMO), one we have not see before was issued to all market participants on the 23/12/19. The market notice requested and served as a reminder for all semi-scheduled and intermittent non-scheduled generators to ensure they update their market availability bids, update their SCADA Local Limit or, if unavailable, advise AEMO control room to implement a quick constraint to the reduced available capacity level; and update intermittent generation availability in the EMMS Portal to reflect reduced plant availability as is required under the National Electricity Rules (NER), per NER 3.7B(b).limits.

This was an interesting constraint for AEMO to issue as it was due to extreme heatwave conditions across the south east coast of Australia, and as with most generating plant, under extreme heat, some form of derating on its physical capacity and output can occur. On the 23/12/19 AEMO’s weather service provider was forecasting extreme high ambient temperatures across all NEM regions, hence AEMO’s market notice to these participants to remind semi-scheduled and intermittent non-scheduled generators to advise AEMO of any reduction in available capacity caused by temperature derating.

Particularly interesting is that the often “set and forget” approach to renewable generators such as solar and wind generators, as classified by AEMO as semi-scheduled generation is being watched with greater scrutiny, particularly after the events of 2016 in SA where a state wide blackout was triggered by a severe weather, damaging more than 20 towers, downing major transmission lines, and with multiple wind farms currently shouldering some of the blame for the state going black due to the wind farms switching off when the transmission lines went down.

Semi-scheduled: A generating system with intermittent output (like a wind or solar farm), and an aggregate nameplate capacity of 30 MW or more is normally classified as a semi-scheduled generator unless AEMO approves its classification as a scheduled generating unit or a non-scheduled generating unit. AEMO can limit a semi-scheduled generator’s output in response to network constraints, but at other times the generator can supply up to its maximum registered capacity (AEMO 2014).

If you have any questions regarding this article or the electricity market in general, call Edge on 07 3905 9220 or 1800 334 336.

Gas power stations for Victoria and Queensland

The federal government recently announced an agreement to underwrite new gas turbines in Victoria and Queensland to provide relief from expected high peak prices. The operation of these assets, below the usual short run marginal cost of current open cycle gas turbines (QLD – $106 / MWh – AEMO 2019) will potentially limit the likelihood of high prices or price volatility over the morning and evening peaks resulting in reduced average spot outcomes.

Under the new generation underwriting plan, which was proposed by the ACCC, the government will assure an amount of the electricity generated will be purchased for a set period into the future.

The Victorian generator will be located at Dandenong, south-east from Melbourne’s CBD and the Queensland asset will be located near Gatton, 90km west of Brisbane.

The 132MW Queensland generator is proposed by Quinbrook Infrastructure Partners, while the 220MW Victorian asset is proposed by the APA group.

Mr Taylor (Minister for Energy and Emissions Reduction) has previously said the government had been “hard-nosed” with these projects and each of them would have to prove commercially viable and benefit the jurisdiction in which they were going to operate.

Both projects are expected to commence construction next year once private sector finance has been secured.

If you would like to know more, please contact Edge on 07 3905 9220.

Can A Capacity Market Secure Supply

On the 12th September COAG Energy Council met and discussed the approach of the Energy Security Board is proposing to resolve the long-term solution to the NEMs security of supply assumed issues in an increasing variable renewable energy grid.

One possible future scenario that has been considered and offered for market feedback was implementing a Capacity Market. Incentivising existing generation to not mothball early and give new assets return certainty encouraging investment. In a standard model it would provide payments to build new, extend the life of generation assets or possibly to those able to reduce their demand, providing they guarantee capacity to the system at periods of stress.

The idea behind using a Capacity Market is to ensure security of supply to the grid at the cheapest cost to consumers with increased renewables in the system; especially wind which creates greater uncertainty. A generator who can provide the capacity certainty or a user who has the ability to turn down their demand, offers these flexibilities to the system operator in auctions up to 4 years in advance. Payments are made by end users to these providers to “guarantee” access to this facility over periods of high system stress. This payment is made regardless of the capacity being required or not.

There is no real case that on a high renewable grid a capacity market is required to provide security of supply. In the UK following the introduction of the Capacity Market (pre its suspension) there have been no new assets built. It was designed to incentivise investment in new Gas plants which have not emerged and existing plant in the scheme have already curtailed hours.  This leaves many to question its merit.  

How this is received by stakeholders in Australia is yet to be seen, however it is assumed that the discussion around security of supply post 2025 has only just begun with the workstreams being run across the regulator agencies and organisations.

If you would like to know more about a Capacity Market, please contact Edge Energy Services on 07 3905 9220 or 1800 334 336.

Queensland Government direction to Stanwell lifted

The CEO of Stanwell was quoted yesterday in Reneweconomy.com.au stating that “bidding direction ended on 30 June 2019” in reference to the direction given to Stanwell form the Queensland Government in May 2017 to lower wholesale prices.

Spot prices have been soft since 1 July 2019 across the NEM and there is currently no evidence to suggest that Stanwell (and CS Energy) have immediately reacted to the lift of the direction.

When the direction was first given by the Queensland Government in 2017 to Stanwell, energy prices materially came down and generally speaking have been less volatile. Key assets such as Swanbank E and Wivenhoe have been utilised by Stanwell and CS Energy to stop prices spikes above $300.00/MWh.

There is now the potential for Stanwell and CS Energy to utilise their large generation portfolios to potentially increase earnings through higher energy prices. 

If you would like to know more about the potential impact that the lifting of the direction may have on Australian energy prices, please contact Edge Energy Services on 07 3905 9220 or 1800 334 336.

LNP Inertia Continues

In a surprise outcome the LNP maintained leadership over the weekend noting that it remains unknown whether or not the LNP will form a majority government. Energy and climate were at the heart of this election with Labor putting forward material initiatives that would increase investment in renewable energy generation (increased funding to the CEFC) and reduce emissions through the extension of the safeguard mechanism, amongst a number of other initiatives. The LNP are less ambitious and maintain the emissions reduction target of 26-28% below 2005 levels by 2030. The LNP will extend the Climate Solutions Fund by providing additional funding to the Emissions Reduction Fund which is the reverse auction of ACCU’s managed by the Clean Energy Regulator.

In terms of energy generation and transmission the LNP has pledged support for Snowy Hydro 2.0, the Underwriting New Generation Investment program and Marinus Link (Interconnector between TAS and VIC, part of the Battery of the Nation plan).

The futures markets (energy and environmental certificates) had priced in a Labor victory. The result over the weekend may put upward pressure on forward prices (energy & Enviro) as there will be less new renewable generation invested in over the coming years. That being said, state based renewable energy targets remain in place as per the following:

QLD – 50% Renewable by 2030

NSW – No target

VIC – 25% by 2020 and 40% by 2025

SA – No target

Tas – 100% by 2022

The larger demand states are QLD, NSW and VIC who are still heavily reliant on coal powered generation. NSW is the only state of these three whereby there is no target. Given that QLD and VICs renewable energy targets remain in place there should not be a material decline in new renewable generation development in these regions. For NSW, at least for the time being, new renewable generation will be a function of price. Currently NSW prices are at a level whereby a solar or wind developer should be able to secure funding and a PPA.

If you would like to know more about the potential impact that our LNP government may have on Australian energy prices, please contact Edge Energy Services on 07 3905 9220 or 1800 334 336.

Clean Energy Regulator confirms 2019 RRP and STP

On 12 March 2019, the Clean Energy Regulator (CER) has confirmed the 2019 renewable power percentage (RPP) and small-scale technology percentage (STP) has been set by legislative amendment.

The 2019 RRP has been set at 18.6% and the 2019 STP has been set at 21.73%.

As explained by the CER, the RRP and STP set the annual statutory demand for large-scale generation certificates and small-scale technology certificates in the Renewable Energy Target.

If you have any questions regarding the 2019 RRP or STP or any other matter relating to energy, please contact Edge Energy Services on 07 3905 9220 or 1800 334 336.

Update from COAG Energy Council meeting

The COAG Energy Council met today for their 21st meeting. On the agenda was AEMO addressing their work in preparing the grid for summer, bringing down electricity costs and ensuring long term grid reliability and security.

AEMO highlighted the priority of work being undertaken to ensure that there is enough dispatchable generation in the NEM and integration of renewable and distributed energy resources. The Ministers agreed to a work program for the ESB to develop advice on a long term, fit for purpose market framework to support reliability that could apply from the mid-2020s. There was very little detail on this framework, however Edge will look to discover more.

Reliability

Ministers agreed to the final draft bill which gives effect to the Retail Reliability Obligation. The final package of rules will be brought to Council for approval in the first half of 2019, with a target commencement date of 1 July 2019.

Transmission upgrades

Ministers agreed on an approach to deliver the Group 1 transmission network projects. Group 1 projects include:

• Increasing transfer capacity between New South Wales, Queensland, and Victoria by 170-460 MW;

• Reducing congestion for existing and committed renewable energy developments in western and north-western Victoria; and

• Remedy system strength in South Australia.

In the Base plan, these initial transmission developments for Group 1 are costed at between $450 million and $650 million, and the assets will continue to benefit consumers well beyond the 20-year ISP forecast period. More cost benefit analysis work is to be conducted on Group 2 and 3 projects.

If you have any questions regarding this article or the electricity market in general, call Edge on 07 3905 9220 or 1800 334 336.

Ergon Retail offer ‘EasyPay Rewards’ to help alleviate rising costs in energy

On Tuesday 24 October, Queensland Treasurer Curtis Pitt and Energy Minister Mark Baily announced a new suite of measures to create electricity savings for Queenslanders under the Palaszczuk Government’s Affordable Energy Plan.

One of the initiatives announced will be the removal of Ergon’s non-reversion policy.  The non-reversion policy prevented customers who transferred away from Ergon Retail from returning.  The Government believes that removing this policy will give customers in regional Queensland more choice when selecting a retailer.  Not only will regional customers be able to shop around, but they will now have the ability to test the water and return to Ergon Retail should they wish to do so.  Coupled with this announcement, Ergon Retail are now offering ‘EasyPay Rewards’ whereby regional customers could earn discounts of up to $75 for residential households and $120 for small businesses every year.

Other initiatives under the Affordable Energy Plan included:

  • Rebates of up to $300 to purchase an energy efficient fridge, washing machines or air conditioner, providing bill savings of up to $50 a year for an energy efficient washing machine or fridge or $135 a year for an air conditioner. Up to 100,000 Queensland households are expected to take up the offer.
  • An Asset Ownership Dividend of $50 a year for every household bill over the next two years, starting from January 2018 and evident on bills from the second quarter of 2018.
  • Another 4000 regional households can save up to $200 through the expansion of the Energy Savvy program.
  • Support for primary producers by delivering an additional 200 energy audits to agricultural customers through an expanded Energy Savers Plus program in partnership with the Queensland Farmers’ Federation, as well as providing a 50% co-contribution (up to $20,000) to implement audit recommendations.
  • Support for Queensland jobs and industry by providing energy audits for large customers including manufacturers, with a 50% co-contribution to implement recommendations (up to $250,000 per customer). This is expected to deliver savings of 10% to 40% for large industrial customers.
  • No-interest loans to help those Queenslanders who don’t have access to the upfront capital required to invest in solar and battery technologies to help reduce their bills and be part of a clean energy future. Queenslanders will be able to apply from March 2018, with savings of up to $700 per year expected for those who take up solar.

 

The initiatives are planned to be available from 1 January 2018, with calls for applications for Ergon’s EasyPay Rewards open now.