Solar Energy Essay

3148 words - 13 pages

Concentrating Solar Power: Energy from Mirrors
Mirror mirror on the wall, what's the greatest energy source of all? The sun. Enough energy from the sun falls on the Earth everyday to power our homes and businesses for almost 30 years. Yet we've only just begun to tap its potential. You may have heard about solar electric power to light homes or solar thermal power used to heat water, but did you know there is such a thing as solar thermal-electric power? Electric utility companies are using mirrors to concentrate heat from the sun to produce environmentally friendly electricity for cities, especially in the southwestern United States.

DOE/GO-102001-1147 FS 128 March 2001

The ...view middle of the document...

No recommendation or endorsement of any product or service is implied if mentioned by EREC.
Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 20% postconsumer waste

Photo by Hugh Reilly, Sandia National Laboratories/PIX02186

sume no fuel other than sunlight. About the only impact concentrating solar power plants have on the environment is land use. Although the amount of land a concentrating solar power plant occupies is larger than that of a fossil fuel plant, both types of plants use about the same amount of land because fossil fuel plants use additional land for mining and exploration as well as road building to reach the mines. Other benefits of concentrating solar power plants include low operating costs, and the ability to produce power during high-demand energy periods and to help increase our energy security—our country's independence from foreign oil imports. Because they store energy, they can operate in cloudy weather and after sunset. When combined with fossil fuels as a hybrid system, they can operate around the clock regardless of weather. Concentrating solar power plants also create two and a half times as many skilled jobs as traditional plants.

cations, ranging from remote power systems as small as a few kilowatts (kW) up to grid-connected applications of 200-350 megawatts (MW) or more. A concentrating solar power system that produces 350 MW of electricity displaces the energy equivalent of 2.3 million barrels of oil.

Concentrator Receiver

Individual trough systems currently can generate about 80 MW of electricity.

Fig. 1 A parabolic trough

Types of Systems
Unlike solar (photovoltaic) cells, which use light to produce electricity, concentrating solar power systems generate electricity with heat. Concentrating solar collectors use mirrors and lenses to concentrate and focus sunlight onto a thermal receiver, similar to a boiler tube. The receiver absorbs and converts sunlight into heat. The heat is then transported to a steam generator or engine where it is converted into electricity. There are three main types of concentrating solar power systems: parabolic troughs, dish/engine systems, and centralreceiver systems. These technologies can be used to generate electricity for a variety of appli-

Trough Systems
These solar collectors use mirrored parabolic troughs to focus the sun's energy to a fluid-carrying receiver tube located at the focal point of a parabolically curved trough reflector (see Fig.1 above). The energy from the sun sent to the tube heats oil flowing through the tube, and the heat energy is then used to generate electricity in a conventional steam generator. Many troughs placed in parallel rows are called a "collector field." The troughs in the field are all aligned along a northsouth axis so they can track the sun from east to west during the day, ensuring that the sun is continuously focused on the receiver pipes. Individual trough systems...

Other Essays Like Solar Energy

Solar Energy in Spain Essay

3461 words - 14 pages Solar Energy In Spain Inigo Ramos Marbella International University Centre Abstract This study explains the meaning and different types of solar energy, beginning with–Solar thermal power plants, Photovoltaics in the context of Spain, mentioning different projects undertaken in different parts of the country. It also analyses diversified policies, legal framework and the support given by the governments with the establishment of solar

Solar Energy India Essay

798 words - 4 pages EXECUTIVE SUMMARY STRATEGY IN SOLAR ENERGY – MAHINDRA EPC Group 4 E023 Mayank Dugar E032 Pavan Kunjoor E050 Nithish S E051 Shaik Safik E052 Nithin Sandhyala E065 Pranav Venuturumilli E067 Dhruv Mehta INTRODUCTION Mahindra EPC is the Engineering Procurement & Construction arm of the Mahindra group committed to provide world class solutions to its customers. Mahindra EPC Services Pvt Ltd is a portfolio company under Mahindra

Solar Energy Potential Assessment Using Gis

2110 words - 9 pages Energy Education Science and Technology 2007 Volume(issue) 18(2): 101-114 Solar energy potential assessment using GIS T. V. Ramachandra Centre for Ecological Sciences, Indian Institute of Science Centre for Application of Science and Technology to Rural Areas (ASTRA), Indian Institute of Science, Bangalore 560 012, India Received 07 December 2006; accepted 15 December 2006 Abstract Renewable energy resources are those having a cycling

Solar Rooftop Systems Market in India

645 words - 3 pages 12th August 2016 – Navi Mumbai, India: Market Report on India present the latest report on “Solar Rooftop Systems Market in India”, The report provides the unbiased and detailed analysis of the on-going trends, opportunities/high growth areas, market drivers, which would help the stakeholders to decide. India's energy mix is witnessing significant changes due to the adoption of renewable sources of power. Although, share of renewable energy

Solar Panel Instillation

692 words - 3 pages kilowatt instillations. The measurement for the data is in kilowatts of energy per system. The test included two batches of 18, on from Martin Solar and one from Solar Power. The researchers compared the data with MegaStat using Descriptive Statistics and Hypothesis Test, Compare Two Independent Groups, Z-test. The researchers retained the null hypothesis of both tests using the alpha level of 0.05. The data showed that there was no difference

Hello Motto

4184 words - 17 pages Title: SOLAR ENERGY: “SUNLIGHT into USEFUL ELECTRICITY” >Introduction< In today's climate of growing energy needs and increasing environmental concern, alternatives to the use of non-renewable and polluting fossil fuels have to be investigated. One such alternative is solar energy. Solar energy is quite simply the energy produced directly by the sun and collected elsewhere, normally the Earth. The sun creates its energy through a

Harnessing Technology for the Future

809 words - 4 pages inexhaustible energy of the sun. Each hour, enough sunlight reaches Earth to meet the world’s energy needs for a year. To harvest this bounty, we need technology that efficiently converts the sun’s energy into forms we can use. Developing this technology is the purpose of the U.S. Department of Energy (DOE) Solar Energy Technologies Program. Powerful Goals, Powerful Technologies The Solar Energy Technologies Program is part of the DOE

Solar Power

1774 words - 8 pages Introduction Background Information Wind power and solar power are kinds of renewable energy. Wind farms were invented in New York in 1882 and it is connects with alternative current (AC) to convert to direct current (DC). According to Liu, Wang and Loh (2010, p. 746), wind turbines convert from AC to DC. It is around 20 meters high because there is a strong wind at the top which cause the rotors blade to move. Wind power are used in

Indian Renewable Energy Industry 2015 - Aarkstore

1127 words - 5 pages is playing an active role in promoting the adoption of renewable energy resources by offering various incentives, such as generation- based incentives (GBIs), capital and interest subsidies, viability gap funding, concessional finance, fiscal incentives etc. The National Solar Mission aims to promote the development and use of solar energy for power generation and other uses, with the ultimate objective of making solar energy compete with

How Does Your Energy Source Create Electricity?

693 words - 3 pages How does your energy source create electricity? 1. Photovoltaic (PV devices) or “solar cells” change sunlight directly into electricity. PV cells are grouped into panels that can be used in a wide range of applications from singe small cells that charge just calculator and watch batteries, to systems that power homes, to large power plants that cover numerous acres. What is its potential? Because convenient and affordable energy can help a

Project 1 Econ 545

935 words - 4 pages significant increase in volume over the next few years. According to SolarBuzz, a website dedicated to Solar Power and Energy, The solar PV industry has reached a critical tipping point, with end-market demand hitting record levels almost every quarter. This growth is being driven by leading module suppliers and project developers that returned to profitability during 2013, and which have now established highly-effective global sales and marketing

Related Papers

Solar Energy Essay

556 words - 3 pages Tammie Randolph Solar Energy In today’s climate of growing energy needs and increasing environmental concern, alternatives energy are been investigated. One such alternative is solar energy. Solar energy is quite simply the energy produced directly by the sun and collected elsewhere, normally the Earth. Due to the nature of solar energy, two components are required to have a functional solar energy generator. These two components are a

Solar Energy Essay

1292 words - 6 pages Solar Energy Technology Solar energy is a kind of renewable energy source, which depends on the sun's rays to generate heat and create electricity. As long as there is a sun shining on the earth, and the sun will never run out of energy; therefore, the solar energy always exist. Solar technology is not new. Its history spans from the 7th Century B.C. Greeks used passive solar which are direct solar gain and indirect solar gain to heat buildings

Solar Energy Essay

543 words - 3 pages Solar energy is the light and radiant heat from the Sun that influences Earth's climate and weather and sustains life. Solar power is the rate of solar energy at a point in time; it is sometimes used as a synonym for solar energy or more specifically to refer to electricity generated from solar radiation. Since ancient times solar energy has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar

Solar Energy Essay 1624 Words

1624 words - 7 pages EFB334 Environmental Economics and Policy Essay: Why is the uptake of solar energy so low? Solar Energy Introduction Solar energy is a vast and abundant resource in infinite supply however despite these appealing characteristics uptake of solar power has been low across all sectors. There are a wide variety of reasons as to why the uptake of solar energy has been so slow and this essay will analyse and discuss the relevant issues