Environmental Consequences Of Hydroelectric Power

The article “Down go the dams” by Jane C.Marks aim to provide an informative view on the current pending issue on Dams. The article starts out my mentioning the important nature of dams in our society. For example, Jane C.Marks states that today about 800,000 dams operate worldwide as well as the fact that most were built in the past century, primarily after World War II. Furthermore, the author lays down informative facts about dams such as the fact that dams control flooding and their reservoirs provide a reliable supply of water for irrigation, drinking and recreation which are all very important to society. In an economic standpoint, although it is very high maintenance dams provide jobs for people. The

The Impact of Hydropower Dams on California's Populations of Anadromous Fish: What can be done to mitigate the Dams Effects and Restore California's Watersheds.

Hydro-electric schemes usually rely on the construction of dams which can have significant effects on river flows, water quality, flora and fauna

The thirst for water has lead individuals and organizations to build dams across rivers at an alarming rate. During the early 1900s dams were being built so fast it was no longer big news when a dam was completed. These structures provided controlled irrigation water and hydroelectric power to the communities not only close to the reservoirs and dams, but also provided irrigation water and hydroelectric power to communities many miles away from the river. Negatively blocking the flow of the river has impacted fish ecosystems, increased evaporation of water, and flooded intricately important landscapes. These negative impacts, it can be argued, affect the humans living downstream or within the flood plain of the dam site. Dams

Hydroelectric dams as energy sources have many advantages; they provide a renewable energy source, it can take the place of fossil fuel usages, and while being built dams can significantly help jobs in the development industry (Perlman). However, these dams are extremely costly, not just economically but environmentally and socially as well. These costs can be demonstrated by looking at the consequences of other dams. Three Gorges in China: release of methane gases, deforestation, water pollution, ecosystem disruption. Glen Canyon Dam: sedimentation, endangerment and extinction of species endemic to the area, poor water quality, crippling of ecosystems downstream—and these are just the environmental impacts! All of these

Dam projects can serve many purposes. They compensate for varying amounts of water that nature may send down a river at a given time, or they may serve as a resource to generate hydropower for the local population. The construction of these complicated feats of engineering is an expensive, time consuming task. For whatever reason a dam is built, it will almost always pay for itself in the energy it produces or

Furthermore, generating hydroelectricity does not produce any kinds of greenhouse gases or smog emissions. Finding the balance between an efficient energy source that does not produce any greenhouse gases are crucial, especially in this day and time, where climate change is prominently becoming a large issue not just in Canada but all over the world. Between 1990 and 2013 Canada’s increase in emissions were caused by fossil fuels. Fortunately, there was a slight reduction from 2005 to 2013 and that was from the public electricity sector, for example, by using hydroelectric stations. If canada increased the percentage in which the hydroelectric stations supplied energy to, Canada could potentially cut down on greenhouse gas emissions and smog.

The economic and environmental issue surrounding Hydroelectric is because it is very expensive and damages ecosystems. (Campus France)

INTRODUCTION: Water assets building is growing massively today. Dams have the most vital part in using water assets. They were developed taxing year before increasing present data about hydrology and hydro mechanics. All through the historical backdrop of the world, dams have been utilized effectively as a part of gathering, putting away and overseeing water expected to manage human advancement. Dams have a lot of positive and negative impacts on the earth. Their advantages like controlling stream administration, subsequently forestalling surges, getting local and water system water from put away water and creating vitality from hydro control. While dam give noteworthy advantage to our general public, their effect on the encompassing incorporates resettlement and migration, financial effect, natural concerns, sedimentation issue, security angles and so on. Notwithstanding their vital social and natural advantages, it is vital to minimize the negative impacts of the hoover dam on the earth with respect to feasible advancement.

Its powers most of the building like homes, hospitals, schools, factories and etc. Hydroelectricity comes in a human cost. The huge damn that required for hydroelectric energy projects create a reservoir that floods an entire valley. Like homes, communities, and towns that may have to relocate as a dam construction begins. However, the projects to make a hydroelectric power generator has forced more than millions of people to relocate. Lifestyles were disputed. We don’t have to burn fuels to cause pollution… pollution free. Hydroelectric developments don’t generate toxic by-products. With an average lifetime of 50 to 100 years, hydroelectricity developments are a long term. It can easily be upgraded to incorporate more recent technologies and have very low operating and maintenance cost. Dams are designed to last decades and so can so contribute to the generation of electricity for many years and decades. Hydroelectricity is the cheapest way to provide energy. Once a dam is constructed, electricity can be produced at a constant rate. Large dams can be useful for flood control. It’s a clean energy source. It does not produce green house gases. When a hydroelectricity water storage dam is built, the water can be used as drinking water and also a recreational purpose such as fishing and boating. Dams saves and reserves water so that it is not wasted into oceans and seas. Controllable source of

The United States is the second largest producer of greenhouse gases in the world, and yet is doing very little to fix this startling statistic (Dennis). The US’ reliance upon outdated energy sources continues to harm both the environment and the economy by producing millions of tonnes of pollution every year and costing the government billions of dollars (“Fact Sheet: Clean Power Plan”). Fossil fuels have been the main energy sources in America since the industrial revolution, and it is time to make a change. Renewable energy is energy harnessed from sources like the sun, wind, or water, and has little to no negative effects on the environment (“Renewable Energy Technology Basics”). The United States needs to integrate and increase the use of these types of energy across the country, as well as implement positive environmental policies, to prevent further pollution of the earth and combat the effects of climate change.

Hydroelectric power plant is one of the major power plants all over the world in order to create electricity. It is also one of the best renewable energy sources on the planet earth. In ranking, Canada is the third largest country to produce hydroelectricity power. The efficiency of this power source is 90% and this is very impressive as the percentage of efficiency is very high. Hydro power plants generate 24% of the world’s electricity. More than 1 billion people are associated with hydro power plants as they use the power supply from hydro power plants.

All of these projects are designed to have low environ- mental impacts and be sustainable and easy to maintain. Since they are mini-hydro projects, large head heights (and thus large dams) are not required [9]. Most of these 6 turbine projects favor weirs over dams which cause much less damage to both the river and the surround- ing wildlife and fish population. An example of one of these small, low impact dams can be seen in FIG. 1. The design of these system also includes many failsafes to help aid in environmental protection. Like many small hydro plants, CRELUZ’s projects include fish passes and flood controls [6].

Over the years, the unequivocal increase in the Earth’s climate has been an issue concerning environmentalists and other scientists. With overwhelming evidence pointing to environmentally damaging human behavior as the culprit for the Earth’s rising temperature, a search for cleaner and renewable energy sources creates a vastly growing alternative energy industry. One of the most widely used forms of renewable energy is hydroelectricity. Like the name implies, hydroelectricity refers to the generation of electricity through use of hydropower. In particular, the gravitational energy of falling, flowing, or spinning water can be transferred to electric energy through Newton’s Law of Conservation of Energy (i.e. energy cannot be created or destroyed, but can be transferred from one form to another).9 This renewable energy source has grown in popularity vastly over time since the industrial revolution, and now accounts for nearly 15 percent of the Earth’s total electricity generation.9 The benefits hydroelectricity speak for themselves; hydroelectricity yields no direct waste, has a relatively low costs and expenses, and releases considerably less carbon dioxide emissions than the burning of fossil fuels. However, some recent studies have suggested that the vast benefits of hydroelectricity do not outweigh the damaging effects on the surrounding ecosystem.

Large dam construction cost and installation of equipment, and the usually great time required for completion of the project