New Zealand mainly uses renewable energy sources and most of the New Zealand’s Electricity is generated from the hydro-electric stations and the rest of it is generated from both geothermal, wind power and thermal. Electricity demand has grown by an average of 2.1 per cent per year since 1974 and 0.6 per cent from 2005 to 2011. New Zealand has been called as one of the least energy efficient countries in comparison to the economic output against electricity consumption, despite being slightly above global average in the list of countries by energy intensity. The National Grid which is owned and operated by Trans power New Zealand is the high voltage transmission network of lines and substations connecting areas of generation with cities and towns across the whole nation.
Assets of the existing Trans power includes more than 11,000 route kilometers of transmission lines and these are about 25,000 towers and 16,000 poles, 174 substations together with about 2300 circuit breakers and 1000 power transformers. The majority of New Zealand’s electricity is generated from hydro-electric if from the stations established on the rivers and the lakes of the lower half of the South Island, and in reality most of the electricity demand is in the North Island and in particularly, the Auckland regions. There has always been a debate on whether or not the transmission lines are the best way to carry on in providing the power with this increasing demand. As the owner and operator of the National Grid, Tran’s power is planning up to $1.5 billion of new investment, and before this could be approved, it needs to assure that the Electricity Commission has no better way of doing the job.
The main purpose of the North Auckland and Northland (NAaN) Grid u...
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...es the combination of both but in consideration with the cost, efficiency and the location.
In New Zealand, technology is limited so other methods of generating power without the use of transmission lines are limited as well. Trans power New Zealand could further invest in implementing new ideas to provide a solution to the alternatives and may be they could come up with some new ways of generating and distributing the electricity but my idea is not limited as well, because the suggestions have confirmed the sustainability of configuration of the existing grid, even though the capacity needs to be increased over time as the grid flows should continue to be dominated by the large amounts of loads in the north island regions particularly the upper side and thus electricity will be continuously to flow predominantly from the renewable generation in the south regions.
Its most known process of generating electricity would be movement of air through wind turbines. Wind power has two parts, mechanical and electrical systems. Mechanical systems are low speed and are used for mechanical tasks such as pumping water or grinding grain. Electrical systems are high speed and are used to generate electricity to power homes or schools. Many people feel that wind farms full of turbines, are aesthetically unpleasing, but wind power is a clean energy source and does not generate greenhouse gas emissions. It is a very abundant resource throughout the United States. Wind power is simple, relatively cheap, and low maintenance (Sambu). Wind power is again, free and very abundant so no matter how much we use now, we will still obtain enough in the
As the global population increases exponentially, having passed six billion in 1999, the world population is expected to be 8.9 billion by the year 2050. The worlds energy consumption will increase by an estimated 54 percent by 2025. Energy demand in the industrialized world is projected to grow 1.2 percent per year. Energy is a critical component of sustained economic growth and improved standards of living. One of the major requirements for sustaining human progress is an adequate source of energy. As the world’s technological enhancements and standards of living improve, so too does their appetite for electricity.
point of view on this question, the answer would depend on the largest benefit of the two.
Outhred, H, 2006, What Role For Nuclear Power In The Australian Electricity Industry? AIE National Conference – Energy at the crossroads – November 2006 , Nuclear power in the Australian Electricity Industry, University of New South Wales.
A electric grid works as a power distribution system and carries electric powers through different power lines. Since grid cannot store any power anyplace within the system. We got several customers consuming megawatts of power at any moment. At that very same moment, we have got dozens of power plants manufacturing precisely the
Wind power has an expansive future according to experts. In the 1990's wind energy was the fastest growing source of electricity in the world. However, the majority of this growth has been in Europe. This is where government policies and high conventional energy costs favor the use of wind energy. The U.S. Department of energy recently announced that it hopes to power at least 5% of the nation's electricity with wind by 2020. The department also wants to increase federal use of wind energy to 5% by 2010.
President Obama stated in his 2011 State of the Union address that he envision in 2035, 80% of the nation’s energy will be met by clean energy sources. Without increased transmission capacity his vision will not be achieved. The function of the transmission line is to get the electricity produced from any source to the grid. Transmission construction is expensive. Prairie Wind Transmission has been approved to build 110 miles of transmission lines in Kansas at an estimated project cost of $2 mi...
Their key concerns would be low costs, space utilisations, operational costs in the long run (especially of owners as well), time for installation etc.
Since, these two technology are the world fastest electricity generators; therefore, they are rapidly starts to grow particularly in Australia due to the environmental benefits and economics. Australia has the highest average of solar radiation and best solar energy resource in the world, which is used by more than 2 million of households. In 2015, approximately 14.6% of renewable energy is provided for 6.7 million average homes. Furthermore, regarding to the Australia government statistics, 2.4% of solar energy generated electricity in 2015. Moreover, 58 million of PJ solar radiations are receives per years, which are approximately 10 000 times larger than its total energy consumption. Alternatively, Wind energy is known as the fastest growing renewable energy source for electricity, and the current share of Australian primary energy consumption is approximately 4%. Most of the winds resources are obtain from particularly in south-western, southern and south eastern margins. In 2015, Australia's wind farms produced about 33.7% of clean energy with the total out of 20% of renewable energy and supplied 4.9% of electricity during the year. The use of wind energy in Australia is to pump bore water such as in rural
According to Why Wind Works - Canadian Wind Energy Association (2017), "Canada wind energy is one of the quickest expanding major origins of new electricity". For example, in 2016, Canada’s wind generation grew by 702 MW spread among 21 new wind energy projects. Also in 2015, Canada installed capacity surpassed the 10,000 MW threshold, building the industry’s position as a mainstream source of cost-competitive and stable electricity
Electricity when viewed from an economic perspective is probably the most important man-made commodity of human race. Ever since its invention and commercial use in 18th century to this day, its contribution to progress, growth, innovation and development to mankind has been unequivocal. Electricity markets over the decades have always been regional, oligopolistic and vertically integrated. However, in the last few decades, power markets world-wide are being transformed from highly regulated Government controlled power markets into deregulated and competitive power markets. The traditional vertically integrated electric utility structures of yester-years have been replaced by a deregulated and competitive market scheme in many countries worldwide (Li et al., 2007; Weron, 2006, Girish et al., 2014).
South Africa wastes lots of money on non renewable energy sources in order to create electricity for example coal. The building of Wind Turbines, Hydroelectric power plants etc. Are costly, but once built are free as they use renewable energy sources. They do not contribute to global warming unlike nuclear power plant which is extremely bad for the air. There is also a risk of an accident such as the Chernobyl accident.
Furthermore per-unit cost of natural resources based good potentially will increase due to the increase in supply. For example Tasmania implemented an electricity generator program due to its shortage of electricity which uses wind turbines. The generated electricity then travels kilometers in cables costing hundreds of million dollars. However several years ago these actions were not necessary as cheap power could be obtained through hydro-electric schemes. Although today all rivers have been dammed resulting in other forms of power with higher costs to meet the growing population
The cheapest way to generate electricity, today, is hydropower. The reason for that is, once a dam has been constructed and equipment installed, the source of the energy is free. It is a fuel source that is renewable because of things like snow and rainfall. Engineers may control the water flow on demand.
Renewable energy in South Africa would have effects on our economy because coal demand is shrinking so soon coal mines will close down, new technology may have to be bought or built if the wind and sun energy sources will start to be used, wind farms and solar panel fields will be small whereas coal power stations take up a lot of space.