Renewable Technology
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The document discusses renewable energy technologies as alternatives to avoid catastrophic climate change. It outlines several renewable technologies including solar PV, wind power, hydro power, and biomass power. While these technologies have long term benefits over traditional methods, they also have some disadvantages. Solar PV requires batteries and inverters that increase costs. Wind and hydro power generation can vary depending on environmental conditions. Biomass power requires land and water usage, and emissions are produced during its generation. However, the document concludes that relying on renewable technologies, while addressing their shortcomings, is preferable to continuing traditional energy methods.
![Introduction :
Human beings have already realised that a serious damage has been caused to the global
environment. As our civilisation entirely depends up on it, this realisation can become a cause
of paralysing despair. In order to avoid the catastrophe, which will unfold on this planet in the
near future, man has started making dramatic changes. According to a report by BBC, the
majority of experts working on the climate crisis state that man still has time to avoid the worst
by adopting various alternatives. One of them is Renewable Energy. They also believe that
adoption of these alternatives can change mankinds fate.
As the name suggests, Renewable Technology means it is the technology which harvests
energy which will never get exhausted. e.g.] solar,geothermal, wind, hydroelectric, biomass,
tidal, etc. . Where as, fossil fuels and coal are non-renewable sources of energy.
The most commonly used are as follows :
Solar PV
Wind Power
Hydro Power
Biomass Power
The government organisations of various countries is encouraging their citizens to use these
technologies. They are also offering 鍖nancial incentives for the people who install these
facilities in their locality or properties. These technologies not only have advantages but also
disadvantages. There is a famous saying which will be appropriate in this context ;
Everything you want in the life has a price connected to it. Theres a price to pay if you want
to make things better, a price to pay just for leaving things as they are, a price for everything.
- - Harry Browne.(Writer, Politician, Investment analyst)
Before using these technologies, man should be aware of its disadvantages. In order to create
awareness and do my bit for the society, I have written this report. Referring to various case
studies, I carried out an independent research which is focused on the points such as;
environmental impact, costs involved and load balancing.](https://image.slidesharecdn.com/0d5c93e7-373e-433b-a4c3-1a0cbf2700fc-160211164227/85/Renewable-Technology-2-320.jpg)
![Dye synthesized solar-cells_-intro[1]](https://cdn.slidesharecdn.com/ss_thumbnails/dye-synthesizedsolarcells-intro1-171023044507-thumbnail.jpg?width=560&fit=bounds)
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Renewable Technology
- 1. ! RENEWABLE TECHNOLOGY (The only alternative to secure a better future!) Name : Shubham Kotkar ICWS i.d.: KOTSC1401 (688848) Subject : Environmental Awareness
- 2. Introduction : Human beings have already realised that a serious damage has been caused to the global environment. As our civilisation entirely depends up on it, this realisation can become a cause of paralysing despair. In order to avoid the catastrophe, which will unfold on this planet in the near future, man has started making dramatic changes. According to a report by BBC, the majority of experts working on the climate crisis state that man still has time to avoid the worst by adopting various alternatives. One of them is Renewable Energy. They also believe that adoption of these alternatives can change mankinds fate. As the name suggests, Renewable Technology means it is the technology which harvests energy which will never get exhausted. e.g.] solar,geothermal, wind, hydroelectric, biomass, tidal, etc. . Where as, fossil fuels and coal are non-renewable sources of energy. The most commonly used are as follows : Solar PV Wind Power Hydro Power Biomass Power The government organisations of various countries is encouraging their citizens to use these technologies. They are also offering 鍖nancial incentives for the people who install these facilities in their locality or properties. These technologies not only have advantages but also disadvantages. There is a famous saying which will be appropriate in this context ; Everything you want in the life has a price connected to it. Theres a price to pay if you want to make things better, a price to pay just for leaving things as they are, a price for everything. - - Harry Browne.(Writer, Politician, Investment analyst) Before using these technologies, man should be aware of its disadvantages. In order to create awareness and do my bit for the society, I have written this report. Referring to various case studies, I carried out an independent research which is focused on the points such as; environmental impact, costs involved and load balancing.
- 3. Figure 1 : Information referred from case study done by Dr.Rob Bryant.
- 4. Figure 2. : Solar panels (Photovoltaic)" ! Environmental Impact : Todays competitive market offers various types of PV panels. Each panel has a different harmful component. But the most common are ; crystalline silicon, sulphur hexa鍖uoride, other chemicals which are used to clean the silicon and cells. Silicon is one of the major components of most of the solar PV panels. Its manufacturing process involves harmful toxic chemicals. According to a study conducted by (http://info.cat.org), if the chemicals are not regulated and controlled carefully, they may cause damage to the environment.! Costs involved : Solar panels are very expensive and in order to keep the supply continuos, they require batteries and inverters which increase the price considerably.! Load balancing : Solar PV does not function in the absence of the sun. It means they will not generate electricity at night and during cloudy and rainy weather. Disadvantages : 1.) Solar PV (Photovoltaic) :
- 5. Figure 3. : Windmills." Windmills are one of the major technologies used to harness wind power. It is on of the cleanest ways to generate electricity as it does not release any kind of harmful toxics or gasses. But it has some disadvantages and they are as follows : ! Environmental impact : Land consumption is a major issue during installation of windmills. Even if the windmills don't occupy the whole land, they need to be placed 5 to 10 meters apart. (according to case study done by http://www.ucsusa.org) It also impacts on the local wild life. The main reason behind people debating on this topic is visual and acoustic impacts.! Costs involved : The windmills are very expensive. Long distribution/transmission lines and large amount of land requirement increases the costs considerably.! Load balancing : Windmills are dependant on very particular landscape. As there are variations in the intensity of the wind, the generation of electricity is not consistent. ! ! ! ! ! ! ! ! ! 2.) Wind Power :
- 6. Figure 4. : An image of Hoover Dam (Hydroelectric project), Nevada, USA." Environmental Impact : ! i. Destruction of forest, agricultural land, wild life habitat and scenic land.! ii. Anaerobic decay of plant in the region where it is 鍖ooded will result in production of methane.! iii. Restriction for the natural downstream 鍖ow of soil and nutrients.! iv. Barrier for migrating 鍖sh.! v. Release of signi鍖cant amount of CO2 during the construction of dam.! vi. Global warming emissions are produced during the installation and dismantling on the hydroelectric power plant. ! Cost involved : ! i. Construction of dam is very expensive as it includes acquisition of land, cost of motors, construction cost and in some cases demolition costs. ! Load Balancing : ! 3.) Hydro Power :
- 7. i. Some rivers are unpredictable, as they can change their beds. Some times the weather patterns change. This can result in potential halt of the hydroelectric project.! Figure 5. : An Animated image of a biomass power plant." Environmental Impact : ! i. Biomass power plants require approximately the same amount of water for cooling as coal power plants. (according to http://www.ucsusa.org) ! ii. The air quality is compromised during the generation of electricity in the power plant. ! iii. Signi鍖cant amount of land is consumed in order to store or grow a type of energy crop.! iv. Growing, harvesting, transporting and burning the feedstock results in global warming emissions.! ! ! ! ! 4.) Biomass Power :
- 8. After doing an extensive research, I have concluded that even if man starts relying completely on these renewable technologies, global warming is not going to stop. These technologies have certain drawbacks but, most of the drawbacks are short term and the bene鍖ts are long term. Hence I prefer renewable technologies over the traditional methods. ! ! ! ! http://www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/environmental- impacts-wind-power.html! http://www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/environmental- impacts-hydroelectric-power.html ! http://info.cat.org.uk/questions/pv/what-environmental-impact-photovoltaic-pv-solar-panels! Dwan Stover. (2011). The myth of renewable energy. retrieved November 22, 2011, http:// thebulletin.org/myth-renewable-energy! Dr. Rob Brynt. (2013). Renewable Technology. retrieved March 20, 2014, http://learning.icws- uk.co.uk/moodle/course/view.php?id=36! ! ! ! ! ! ! Conclusion : References :
- 9. Task 2