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Hornsdale Power Reserve
Hornsdale Power Reserve is a 150 MW (194 MWh) grid-connected energy storage system owned by Neoen co-located with the Hornsdale Wind Farm in the Mid North region of South Australia, also owned by Neoen. The original installation in 2017 was the largest lithium-ion battery in the world at 100 MW / 129 MWh. It was expanded in 2020 to 194 MWh at 150 MW. Despite the expansion, it lost that title in August 2020 to the Gateway Energy Storage in California, USA. In Australia the large Victorian Big Battery ( 300 MW / 450 MWh ) began operations in December 2021. During 2017 Tesla, Inc. won the contract and built the Hornsdale Power Reserve, for a capital cost of A$90 million, leading to the colloquial Tesla big battery name. In November 2019, Neoen confirmed that it was increasing capacity by a further 50MW/64.5MWh to a combined 193.5 MWh. The increased storage capacity was installed by March 23, 2020, and the increased power became operational in early Septe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Storage System
Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential, electricity, elevated temperature, latent heat and kinetic. Energy storage involves converting energy from forms that are difficult to store to more conveniently or economically storable forms. Some technologies provide short-term energy storage, while others can endure for much longer. Bulk energy storage is currently dominated by hydroelectric dams, both conventional as well as pumped. Grid energy storage is a collection of methods used for energy storage on a large scale within an electrical power grid. Common examples of energy storage are the rechargeable battery, which stores chemical energy readily convertible to electricity to operate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery (electricity)
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons. When a battery is connected to an external electric load, those negatively charged electrons flow through the circuit and reach the positive terminal, thus causing a redox reaction by attracting positively charged ions, or cations. Thus, higher energy reactants are converted to lower energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curtailment (electricity)
In the electric power industry, curtailment is an involuntary reduction of the electric generator output ("dispatch down") made to maintain the grid stability (for example, for the grid balancing). While curtailment is a standard technique that had been applied throughout the history of electric power production, in the 21st century it became an economic issue for the owners of wind and solar generators. These variable renewable energy plants, due to the absence of an expendable resource (like fuel), have quite low marginal cost of the electricity production, so curtailment affects the economics of the project in a much more significant way than in the case of conventional units. Curtailment is a loss of potentially useful energy, and may impact power purchase agreements. However, using all available energy may require costly methods such as building new power lines or storage, becoming more expensive than letting surplus power go unused. Examples After ERCOT built a new t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arbitrage
Arbitrage (, ) is the practice of taking advantage of a difference in prices in two or more marketsstriking a combination of matching deals to capitalize on the difference, the profit being the difference between the market prices at which the unit is traded. Arbitrage has the effect of causing prices of the same or very similar assets in different markets to converge. When used by academics in economics, an arbitrage is a transaction that involves no negative cash flow at any probabilistic or temporal state and a positive cash flow in at least one state; in simple terms, it is the possibility of a risk-free profit after transaction costs. For example, an arbitrage opportunity is present when there is the possibility to instantaneously buy something for a low price and sell it for a higher price. In principle and in academic use, an arbitrage is risk-free; in common use, as in statistical arbitrage, it may refer to ''expected'' profit, though losses may occur, and in practic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Futurism
Futurism ( ) was an Art movement, artistic and social movement that originated in Italy, and to a lesser extent in other countries, in the early 20th century. It emphasized dynamism, speed, technology, youth, violence, and objects such as the car, the airplane, and the industrial city. Its key figures included Italian artists Filippo Tommaso Marinetti, Umberto Boccioni, Carlo Carrà, Fortunato Depero, Gino Severini, Giacomo Balla, and Luigi Russolo. Italian Futurism glorified modernity and, according to its doctrine, "aimed to liberate Italy from the weight of its past." Important Futurist works included Marinetti's 1909 ''Manifesto of Futurism'', Boccioni's 1913 sculpture ''Unique Forms of Continuity in Space'', Balla's 1913–1914 painting ''Abstract Speed + Sound'', and Russolo's ''The Art of Noises'' (1913). Although Futurism was largely an Italian phenomenon, parallel movements emerged in Russia, where some Russian Futurism , Russian Futurists would later go on to found gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Response
Inertial response is a property of large synchronous generators, which contain large synchronous rotating masses, and which acts to overcome any immediate imbalance between power supply and demand for electric power systems, typically the electrical grid. Due to the ever existing power imbalance between mechanical power supply and electric power demand the rotational frequency of the rotating masses in all synchronous generators in the grid either speed up and thus absorb the extra power in case of an excess power supply, or slow down and provide additional power in case of an excess power demand. This response in case of a synchronous generator is built-in into the design and happens without any external intervention or coordination, providing the automatic generation control and the grid operator with valuable time (few seconds) to rebalance the system The grid frequency is the combined result of the detailed motions of all individual synchronous rotors in the grid, which are m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronverter
Synchronverters (also called virtual synchronous generators or virtual synchronous machines) are Power inverter, inverters which mimic synchronous generators (SG) to provide "synthetic inertia" for Ancillary services (electric power), ancillary services in electric power systems. Inertial response, Inertia is a property of standard Synchronous motor, synchronous generators associated with the rotating physical mass of the system spinning at a frequency proportional to the electricity being generated. Inertia has implications towards grid stability as work is required to alter the kinetic energy of the spinning physical mass and therefore opposes changes in grid frequency. Inverter-based generation inherently lacks this property as the waveform is being created artificially via power electronics. Background Standard inverters are very low inertia elements. During transient periods, which are mostly because of Low voltage ride through, faults or Load following power plant, sudden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gladstone Power Station
The NRG Gladstone Power Station is a power station at Callemondah, Gladstone, Queensland, Australia. It is Queensland's largest power station, with six coal powered steam turbines generating a maximum of 1,680 MW of electricity. Power from the station was first generated in 1976. This fossil fuel power plant draws seawater for cooling. Black coal is brought by rail from the Rolleston coal mine, west of Rockhampton. History Preliminary investigations into a new power station in Central Queensland began in 1968. The demand from expanding industry and the proximity to low cost coal were the major reasons for locating a large power station in the Gladstone area. The Gladstone Power Station was designed and constructed by the State Electricity Commission of Queensland. A 275 kV transmission line connecting the power station to South East Queensland was to be built as well. It initially consisted of four generating sets generating 275 MW each and was to cost A$198 million. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loy Yang Power Station
The Loy Yang Power Station is a brown coal-fired thermal power station located on the outskirts of the city of Traralgon, in south-eastern Victoria, Australia. It consists of two sections, known as Loy Yang A (4 units) and Loy Yang B (2 units). Both Loy Yang A and B are supplied by the Loy Yang brown coal mine. The Loy Yang power stations are located in the black coal rich Latrobe Valley, along with the Yallourn Power Station. If Loy Yang A and Loy Yang B are counted together, they are the largest power station in Australia, generating 3280 MW of power (however, if counted separately, the 2,880 MW Eraring Power Station is the largest). Loy Yang A & B are base load power stations, and together produced 23 TWh in 2024, or about 45% of Victoria's electricity requirements. Loy Yang also serves as the mainland connection point for the Basslink electricity interconnector cable which runs under Bass Strait, connecting it to the George Town sub-station in northern Tasmania. In 2024 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrek
Electrek is an American news website dedicated to electric transportation and sustainable energy Energy system, Energy is sustainability, sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs." Definitions of sustainable energy usually look at its effects on the e .... For a long time, Electrek was known for its overwhelmingly positive coverage of electric vehicles in general, and Tesla in particular. This highly favorable stance, which included the main authors disclosing ownership of Tesla stock, significant profits from Tesla referral programs, and personal ownership of Tesla vehicles, drew criticism from some automotive journalists. However, in recent years, a notable shift has occurred. The site, and particularly its editor-in-chief Fred Lambert, has become increasingly critical of Tesla, especially concerning the company's focus on Full Self-Driving (FSD), perceived missteps by Elon Musk, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolling Blackout
A rolling blackout, also referred to as rota or rotational load shedding, rota disconnection, feeder rotation, or a rotating outage, is an intentionally engineered electrical power shutdown in which electricity delivery is stopped for non-overlapping periods of time over different parts of the distribution region. Rolling blackouts are a last-resort measure used by an electric utility company to avoid a total blackout of the power system. Rolling blackouts are a measure of demand response if the demand for electricity exceeds the power supply capability of the network. Rolling blackouts may be localised to a specific part of the electricity network, or they may be more widespread and affect entire countries and continents. Rolling blackouts generally result from two causes: insufficient generation capacity or inadequate transmission infrastructure to deliver power to where it is needed. Rolling blackouts are also used as a response strategy to cope with reduced output beyond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
