scholarly journals Renewable Energy Zones in Australia's National Electricity Market

2021 ◽  
pp. 105446
Author(s):  
Paul Simshauser
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
National Electricity Market

Hydro Tasmania – Renewable Energy Drivers, Action and Plans

2005 ◽  
Vol 16 (5) ◽  
pp. 803-813
Author(s):  
Roger Gill ◽  
Harry Andrews
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Wind Farm ◽  
Environmental Science ◽  
Small Hydropower ◽  
Wind Generators ◽  
Hydropower Plants ◽  
Island State ◽  
National Electricity Market ◽  
Wind Resource

In Tasmania, the island state of Australia, the generator, Hydro Tasmania, is pushing technical, environmental and business boundaries in its plans to integrate a relatively high proportion (up to 20 percent) of large wind generators into its current complex mix of large and small hydropower plants. Its plans include projects to increase the efficiency of its older hydropower equipment as it prepares to supply much needed peaking capacity to the market in southern Australia via the groundbreaking Basslink undersea cable, which is due for completion in November 2005. Taken as a package these developments are creating a globally significant reference site for renewable energy systems. The paper will describe what is happening, and more importantly what is underpinning the developments, including: the harnessing of Tasmania's world-class wind resource, where recently constructed 1.75 MW wind turbines are achieving capacity factors of over 45 percent – some of the best productivity in the world today; the application of leading environmental science measures to ensure the sustainability of both the new wind farm developments and the transformation of the hydropower system to meet peak capacity demands; the relevance of the existing large hydropower storages that can operate in synergy with the wind resource; the contribution of Australia's renewable energy certificate scheme, which is effectively doubling the value of new renewable energy developments compared with existing generation sources; the application of the latest technology in hydropower turbines, combined with power system expertise from the world's leading manufacturers, to increase the efficiency of older hydropower generators, thereby more effectively harnessing the existing environmental footprint; and the transformation of Hydro Tasmania's business into a significant supplier and trader of premium value peak energy into the sophisticated Australian National Electricity Market.

scholarly journals An Overview of System Strength Challenges in Australia’s National Electricity Market Grid

Electronics ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 224
Author(s):  
Li Yu ◽  
Ke Meng ◽  
Wang Zhang ◽  
Yuchen Zhang
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Energy Transition ◽  
System Stability ◽  
Grid Connection ◽  
Electricity System ◽  
National Electricity Market ◽  
High Level ◽  
Engineering Practices ◽  
Comprehensive Reference

The national electricity market (NEM) of Australia is reforming via the rapid uptake of variable renewable energy (VRE) integration concurrent with the retirement of conventional synchronous generation. System strength has emerged as a prominent challenge and constraint to power system stability and ongoing grid connection of VRE such as solar and wind. In order to facilitate decarbonization pathways, Australia is the first country to evolve system strength and inertia frameworks and assessment methods to accommodate energy transition barriers, and other parts of the world are now beginning to follow the same approach. With the evolvement of the system strength framework as a new trending strategy to break the transition barriers raised by renewable energy project development and grid connection studies, this paper provides a high-level overview of system strength, covering such fundamental principles as its definition, attributes, and manifestations, as well as industry commentary, cutting-edge technologies and works currently underway for the delivery of a secure and reliable electricity system with the rapid integration of inverter-based resources (IBRs) in the NEM grid. The intent of this study is to provide a comprehensive reference on the engineering practices of the system strength challenge along with complementary technical, regulatory, and industry perspectives.

Energy Justice and Energy Transition in Australia

2020 ◽  
pp. 178-200
Author(s):  
Lee Godden
Keyword(s):  
Renewable Energy ◽  
Electricity Markets ◽  
Electricity Market ◽  
Fossil Fuels ◽  
National Policy ◽  
Energy Transition ◽  
Indigenous Communities ◽  
Price Impacts ◽  
National Electricity Market ◽  
Energy Justice

Australia is in energy transition despite a national policy supportive of fossil fuels. Regional and remote areas, however, remain dependent on fossil fuels, including diesel. Renewable energy is becoming accessible for some regional communities, due to renewable energy incentives. This chapter considers the energy transition in Australia through the energy justice lens. It analyses the distribution of benefits and burdens of energy activities upon remote Indigenous communities, and examines energy price impacts and consumer protection reforms in liberalized electricity markets in the south. The analysis examines how social justice needs to inform the energy transition, also recognising that energy injustice cannot be separated from other social ills, such as poverty and discrimination based on factors including class, race, gender, or indigeneity. It concludes that there are significant protections emerging for energy consumers in the national electricity market, but an inequitable distribution of energy benefits and burdens in remote Aboriginal communities.

scholarly journals On the Stability of Energy-Only Markets with Government-Initiated Contracts-for-Differences

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2566 ◽  
Author(s):  
Simshauser
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Consumer Welfare ◽  
Spot Market ◽  
Renewable Portfolio Standard ◽  
Market Outcomes ◽  
Investment Activity ◽  
Forward Contract ◽  
National Electricity Market ◽  
Plant Exit

Rising levels of variable renewable energy (VRE) in Australia’s National Electricity Market have been driven by a 20% renewable energy target by 2020. This certificated renewable portfolio standard has successfully driven new investment, allocated risk amongst buy- and sell-side market participants and met overall policy objectives. But a policy vacuum for achieving long-term CO2 emission targets post-2020 has led to sub-national and, potentially, national governments initiating contract-for-differences (CfDs) to drive further investment activity in new plant – with virtually no coordination between the jurisdictions. In a gross pool energy-only market setting, replacing on-market transactions between retailers and generators with off-market transactions between governments and generators may have unintended side-effects vis-à-vis market stability. In this article, an energy-only gross pool is modeled with rising levels of off-market government-initiated CfDs, with a specific focus on spot and forward contract market outcomes. Model results show that as VRE plant enters, coal plant exit, and on-market firm hedge contracts historically supplied by coal plant are progressively replaced by off-market CfDs. In the event, while a tractable equilibrium can be maintained in the spot market, shortages of “primary issuance” hedge contracts emerge in the forward market. Any shortage of hedge contract capacity is likely to raise forward contract price premiums above efficient levels, force price-elastic customers into accepting unwanted spot market exposures and may unintentionally foreclose non-integrated (2nd tier) energy retailers, all of which harms consumer welfare. A wide-ranging program of government CfDs may therefore not be compatible with an energy-only market design.

scholarly journals Analyzing Trade in Continuous Intra-Day Electricity Market: An Agent-Based Modeling Approach

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3860
Author(s):  
Priyanka Shinde ◽  
Ioannis Boukas ◽  
David Radu ◽  
Miguel Manuel de Manuel de Villena ◽  
Mikael Amelin
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Agent Based Modeling ◽  
Market Liquidity ◽  
Energy Sources ◽  
Modeling Framework ◽  
Agent Based

In recent years, the vast penetration of renewable energy sources has introduced a large degree of uncertainty into the power system, thus leading to increased trading activity in the continuous intra-day electricity market. In this paper, we propose an agent-based modeling framework to analyze the behavior and the interactions between renewable energy sources, consumers and thermal power plants in the European Continuous Intra-day (CID) market. Additionally, we propose a novel adaptive trading strategy that can be used by the agents that participate in CID market. The agents learn how to adapt their behavior according to the arrival of new information and how to react to changing market conditions by updating their willingness to trade. A comparative analysis was performed to study the behavior of agents when they adopt the proposed strategy as opposed to other benchmark strategies. The effects of unexpected outages and information asymmetry on the market evolution and the market liquidity were also investigated.

scholarly journals Transposition of European Guidelines for Energy Communities into Austrian Law: A Comparison and Discussion of Issues and Positive Aspects

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3922
Author(s):  
Bernadette Fina ◽  
Hubert Fechner
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Clean Energy ◽  
Detailed Comparison ◽  
Regulatory Framework ◽  
Policy Makers ◽  
European Guidelines ◽  
Subsequent Discussion ◽  
Grid Operators ◽  
Austrian Law

The Renewable Energy Directive and the Electricity Market Directive, both parts of the Clean Energy for all Europeans Package (issued in 2019), provide supranational rules for renewable energy communities and citizen energy communities. Since national transpositions need to be completed within two years, Austria has already drafted corresponding legislation. This article aims at providing a detailed comparison of the European guidelines and the transposition into Austrian law. The comparison not only shows how, and to what extent, the European guidelines are transposed into Austrian law, but also helps to identify loopholes and barriers. The subsequent discussion of these issues as well as positive aspects of the Austrian transposition may be advantageous for legislators and policy makers worldwide in their process of designing a coherent regulatory framework. It is concluded that experts from different areas (i.e., project developers, scientists concerned with energy communities, energy suppliers and grid operators) should be closely involved in the law-making process in order to introduce different perspectives so that a consistent and supportive regulatory framework for energy communities is created.

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