Introduction to Renewable and Non-Renewable Sources
Discuss about the Sources of Renewable Energy Generation in South Australia.
There are both renewable and non-renewable sources of electricity generation in Southern Australia. A renewable source of energy depletion is the one that replenishes fast upon consumption; the supply does not deplete from consumption. On the other hand, a non-renewable source depletes with consumption since the replenish rate is low; this means that supply is limited. These sources contributes with varying proportion to electricity in the market. This paper shall determine both of these sources and also determine their proportion of contribution in the market. There is increase need for a shift to renewable sources of energy (Zahar, Peel & Godden, 2013).One of the most important renewable source of energy to be covered in this paper is the Lithium ion battery. The introduction of this storage of lithium ion Battery will have a positive impact on the supply for electricity in Australia. The paper will elaborate such changes and will discuss the need for the government to support this venture. The paper tells us that this supply will increase the proportion of contribution for the renewable sources in the future. We shall also identify the potential change in price of electricity in the market after the complete integration of this storage system.
Some of the South Australian sources of renewable energy generation includes solar and wind; the solar energy is obtained from the rooftops by the use of solar Photovoltaic (PV) systems (Sa.gov.au, 2017). These solar system are dependent on sunlight; the number of South Australian households who have installed the solar rooftop PVs are more than 200,000. The electricity produced through these systems is used by the households and the excess is sent to main electricity grid. The South Australian wind farms are dependent on wind and when wind is strong there is an increased generation of electricity for the customers.
Some of the South Australian sources of non-renewable energy generation includes natural gas and diesel. The main source on non-renewable source is the natural gas where approximately 60% of the total South Australian natural gas is used for electricity generation. The supply that is obtained from power stations that are fired by diesel is relatively small. The stations are small are mostly are in operation only during the period of peak demand for electricity.
Fig: Renewable and Non-renewable contribution to South Australian electricity
Sources of Renewable Energy Generation in Southern Australia
South Australian government had in plan a target to achieve a 50% contribution of energy from renewable sources in the future 2025 (Abc.net.au, 2017). However, the last contribution of this renewable source (wind and solar) was already beyond 50%. According to Wills (2017), Premier Jay Weatherill’s target of Australia achieving a 50% renewable energy by 2025 was achieved eight years earlier; the proportion of renewable source at April 2017 was 53% which left 47% to be obtained from non-renewable sources. However, the article presented by Parkinson (2017) noted that the contribution by renewable sources was 57% which left only 43$ to be obtained from non-renewable sources; this is the data that is presented in the pie chart above. The contribution of wind power to the 2015/16 states demand was approximately 38%; this contribution jumped in 2016 and a further jump in 2017. Snowtown and Hornsdale are the two wind farms that came on line to raise the contribution of wind power. Non0renewable sources of energy such as carbon, coal and oil were on an increased criticize due to the alarming degradation of the environment from their consumption. The goal of the Australian government is to lower the contribution of non-renewable sources to the minimum level possible and active a 100% supply of renewable energy in the future (Diesendorf, 2017).
The main aim of the building of South Australian world’s largest Lithium ion battery was for securing power (Scopelianos, Fedorowytsch & Garcia, 2017). The battery will be an all-time stabilizer of the power network and in case of a shortfall it will provide some backup power. This battery will raise the grid’s efficiency after completion as it will be the world’s largest storage of battery energy. Efficiency will also be raised because the periods of low cost of electricity production will be taken advantage of; during this period, there is high supply of electricity and thus the extra supply will be used in charging the battery (Musk, 2017). During the period of high costs of electricity production when electricity supply is low, the battery will be used in meeting the shortage. The bottom line of the implementation of the Lithium ion battery is that there will a stabilization of the power supply in South Australia. The state will be able to have a sufficient supply all the way and thus prices will also stabilize. The initial prices of Australian electricity has been so high and the development of the renewable sources in the current years have seen a fall in the prices. The high current prices are attributed to the raised costs of electricity transmission.
Sources of Non-Renewable Energy Generation in Southern Australia
Fig: South Australian electricity demand and supply
The initial equilibrium x is at quantity level Qa and sold at a price Pa. This initial price is higher because the insufficient storage of power is contributing to pressure on the inadequate supply of power. The supply laws accounts for higher prices whenever the quantity supplied is low and the demand remains higher. The lithium ion battery is expected to offer great help to the power storage issue; this will ensure that there will be a higher quantity to meet the South Australian energy power demand. The complete integration will therefore cause the supply curve to shift rightwards from Sa to Sb. a new equilibrium y will be created at the new supply level; this new equilibrium will be characterized by a lower price level and a higher quantity level. Consumers will therefore pay lower prices for power consumption and the pressure on South Australian energy prices will be lowered (Pham, 2017). The impact of the implementation of the Lithium ion battery will therefore be to lower consumer prices and raise energy supply.
The government of Australia may play an important part of developing the renewable energy industry. This could be by an increased investment in this industry through an increased level of funding. Weatherill (2017) noted that South Australian government announced in March 2017 a plan to make the sate more self-reliant by taking charge of its energy security in the future. The major reason why the government is concerned with the energy industry and thus need to impose policy measure is because the South Australian state faced statewide blackout on September 2016 and has been constantly facing widespread load shedding (Harmsen & McMahon, 2017). There is therefore an increased need to achieve a stable power supply at all costs. There is a planned $500 million for expanding the Australian energy industry, the government can allocate a significant amount of money to the building of the Lithium ion battery as it would contribute to the increased provision of renewable power which is the government’s future goals. Dunn (2017) noted that the government already has in place $150 million set aside for renewable energy; it could add an extra spending to make this sum sufficient to complete the construction of this battery. It is stated that the projects costs would rise by $50 million if this project is not completed on the stated schedule.
South Australian Government's Target for Renewable Energy
The government should ensure that this project is completed on time by funding the project significantly. It could also ensure that the costs of building the battery is lowered by lowering the taxation rate for the low materials used in the building of this battery. The government should ensure that signing of the grid interconnection agreement is done as soon as possible to enable Tesla to complete the project before summer. The proposers of this project had planned to complete it before 1st Decembers 2017. The major argument behind the increased government funding is to ensure that the government will have complete ownership of this battery in order to be able to stabilize prices easily. Private ownership would cost the government extra spending since at time it would be required to subsidize the supply coming from the battery for supply to be made at a lower price. Therefore it can be concluded that fiscal policy of increased government spending would be the essential policy to support this venture.
Abc.net.au. (2017). SA has already reached its 2025 renewable energy target. ABC News. Retrieved 5 October 2017, from https://www.abc.net.au/news/2017-04-10/south-australia-renewable-energy-target-reached-early/8429722.
Diesendorf, M. (2017). How South Australia can function reliably while moving to 100% renewable power. The Conversation. Retrieved 6 October 2017, from https://theconversation.com/how-south-australia-can-function-reliably-while-moving-to-100-renewable-power-73199.
Dunn, M. (2017). Everything you need to know about Tesla’s battery in South Australia. NewsComAu. Retrieved 6 October 2017, from https://www.news.com.au/technology/innovation/inventions/everything-you-need-to-know-about-teslas-battery-in-south-australia/news-story/a989f74cfccb8a1211de83f5becc60ed.
Harmsen, N., & McMahon, A. (2017). Tesla to supply world's biggest battery for SA, but what is it and how will it work? ABC News. Retrieved 6 October 2017, from https://www.abc.net.au/news/2017-07-07/what-is-tesla-big-sa-battery-and-how-will-it-work/8688992.
Weatherill, J. (2017). Tesla to pair world’s largest lithium ion battery with Neoen wind farm in SA. Premier.sa.gov.au. Retrieved 6 October 2017, from https://www.premier.sa.gov.au/index.php/jay-weatherill-news-releases/7736-tesla-to-pair-world-s-largest-lithium-ion-battery-with-neoen-wind-farm-in-sa.
Musk, E. (2017). Tesla to build world's biggest lithium ion battery in South Australia. The Guardian. Retrieved 6 October 2017, from https://www.theguardian.com/australia-news/2017/jul/07/tesla-to-build-worlds-biggest-lithium-ion-battery-in-south-australia.
Parkinson, G. (2017). South Australia already at 57% wind and solar in 2016/17. RenewEconomy. Retrieved 5 October 2017, from https://reneweconomy.com.au/south-australia-already-57-wind-solar-201617/.
Pham, S. (2017). Elon Musk promises world's biggest lithium ion battery to Australia. CNNMoney. Retrieved 6 October 2017, from https://money.cnn.com/2017/07/07/technology/tesla-elon-musk-australia-world-biggest-lithium-ion-battery/index.html.
Sa.gov.au. (2017). SA's electricity supply and market. Sa.gov.au. Retrieved 5 October 2017, from https://www.sa.gov.au/topics/energy-and-environment/energy-supply/sas-electricity-supply-and-market.
Scopelianos, S., Fedorowytsch, T., & Garcia, S. (2017). Elon Musk's Tesla to build world's biggest lithium ion battery to secure power for South Australia. Abc.net.au. Retrieved 6 October 2017, from https://www.abc.net.au/news/2017-07-07/sa-to-get-worlds-biggest-lithium-ion-battery/8687268.
Wills, D. (2017). Renewable energy passes 50 per cent target. Adelaidenow.com.au. Retrieved 5 October 2017, from https://www.adelaidenow.com.au/news/south-australia/sa-power-crisis-renewable-energy-production-in-sa-at-50-per-cent-eight-years-ahead-of-schedule/news-story/2e3a6fcb3c40a0ca61b25eba87206d68.
Zahar, A., Peel, J. & Godden, L. (2013). Australian climate law in global context. Cambridge, England: Cambridge University Press.
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