At any one time, the earth intercepts approximately 180 106 gw. When the amount of energy generated by a gridconnected pv system exceeds the customers loads, excess energy is exported to the utility, turning the customers electric meter backward. Kinetic, potential, thermal, chemical, electromagnetic etc. Nuclear, biomass and hydroelectric make up most of the rest. An introduction to energy lecture 1 video due to technical issues lecture 1 has a lower soundpicture quality than the rest of videos.
A student notes outline is also available for this lecture. But even west of the cascades, the oregons willamette valley receives as much solar energy annually as the u. The solar energy is the energy obtained by capturing heat and light from the sun. Solar photovoltaic pv systems an overview figure 1. At present we still depend a lot on fossil fuels and other kinds of nonrenewable energy. The department of energy has been charged with orchestrating the wholesale modernization of our nations electrical grid. Questions on the solar system funnily turn up in both geography and science. Sustainable energy science and engineering center solar. In this project we use the solar energy for generation of. This is the value of what we call the solar constant, although though there is some variation due to earths elliptical orbit. Energy production 85% of energy is generated using fossil fuels. It is available directly as solar isolation and indirectly as wind energy. Energy storagebatteriesfuel cells hydrogen economy.
This webinar provides an overview of how residential and commercial solar projects are financed and the various roles that state and local governments can play to support the deployment of solar within their jurisdictions. Alternative sour ces of energy an introduction to fuel cells by e. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Lecture notes on renewable energy sources subject code. The method of obtaining electricity from sunlight is referred to as the photovoltaic method. Sun sends out energy in the form of electromagnetic radiation. Ppt introduction to solar energy powerpoint presentation. The suns energy, for all practical purposes, is certainly in exhaustible. Solar energy is the most abundant stream of energy. The northwests highest solar potential is east of the cascades. Can solar energy be recycled solar energy used in agriculture solar energy information.
Present status, solar cells, cell technologies, characteristics of pv systems, equivalent circuit, array design, building integrated pv system, its components, sizing and economics. Wiley wind energy explained theory, design and application, 2nd edition. Solar system has 165 moons, one star, eight planets added uranus and neptune, eight asteroids and more than 100 kuiper belt objects more than 300 km in diameter, smaller asteroids, comets, and meteoroids 6. There is no known exception to this lawit is exact so far as we know. In some cases the electric utilities purchase renewable energy credits recs. Photovoltaic solar energy systems the solar resource. Despite the considerable distance between the sun and the earth, the amount of solar energy reaching the earth is substantial. Pros and cons of meeting energy needs by means other than. Options for harnessing solar energy thermal, catalysis, combined technologies, photovoltaic, and their respective current and projected costspotential, compared to traditional sources. This course introduces the technology that converts solar energy into electricity, heat and solar fuels with a main focus on electricity generation. Crops respond differently to both total and specific salts, some being more sensitive than others.
In one hour the earth receives more energy from the sun than the world consume in one year. I hope we dont have to wait til oil and coal run out before we. Solar energy is abundant, in exhaustible, clean, and cheap. Comments 1 the dynamic crust the earths interior and plate tectonics. These include wind energy, solar energy, biomass energy and geothermal energy.
The extensive use of renewable energy including solar energy needs more time for technology development. Lecture notes fundamentals of photovoltaics mechanical. We will begin with a quote from the feynman lectures on physics. For each lecture, the powerpoint file is available, along with a fullcolor 4slideperpage pdf version. In concert with its cutting edge research and energy policy programs, the offices newly. The background is a light color, so printing black and white or grayscale should go easy on the ink. Because of limited fossil fuel resources, increased demand, and environmental impacts alternative and renewable sources of energy are needed. One common configuration of a gridconnected ac photovoltaic system. A free powerpoint ppt presentation displayed as a flash slide show on id. There is a fact, or if you wish, a law, governing all natural phenomena that are known to date. Solar constant the energy density of solar radiation at earths distance from the sun 150,000,000 kilometers averages 61 joules per second per square meter. Lecture notes photovoltaic solar energy systems edgerton. Click on the topic of interest to go directly there, or scroll down through all of the topics. This can be divided into five regions in increasing order of wavelengths.
In this situation energy conservation ec is the critical needs in any countries. Oct 31, 2010 solar energy main drawbacks the initial cost is the main disadvantage of installing a solar energy system, largely because of the high cost of the semiconducting materials used in building one. Most commercially available solar cells are capable of producing electricity for at least twenty years without a significant decrease in efficiency. Moon, stars, mercury, venus, mars, jupiter, saturn, comets, and meteors. Photovoltaic pv devices are presented as advanced semiconductor devices that deliver electricity. Solar energy main drawbacks the initial cost is the main disadvantage of installing a solar energy system, largely because of the high cost of the semiconducting materials used in building one.
In the third edition of solar energy, you will learn to design a complete photovoltaic system. Comments 1 energy in earth processes comments 1 measuring the earth. Solar electric system design, operation and installation. Scribd is the worlds largest social reading and publishing site. The other form of obtaining solar energy is through thermal technologies, which give two forms of energy tapping methods. Find materials for this course in the pages linked along the left. This is the value of what we call the solar constant, although though there is. Sustainable energy science and engineering center a solar chimney power plant has a high chimney tower, with a height of up to m, and this is surrounded by a large collector roof, up to m in diameter, that consists of glass or resistive plastic supported on a framework see artists impression. In addition, specific ions, such as chloride, sodium, boron and others may have a toxic effect on plants at certain levels. Solar energy engineering, jui sheng hsieh, prenticehall, 1986. You can find a few questions on the solar system in many competitive recruitment exams like railways rrb, ssc cgl, sbi po, sbi clerk, ibps clerk, and ibps po.
Conversely, the customer can draw needed power from the utility when energy from the pv system is insufficient to power the buildings loads. Thermodynamics fundamentals for energy conversion systems. An array of solar cells converts solar energy into a usable amount of direct current dc electricity. There are two main types of solar power systems, namely, solar thermal systems that trap heat to warm up. I hope we dont have to wait til oil and coal run out before we tackle that. Lecture note 4 solar thermal heat utilization lecture note 5 solar thermal power plants lecture note 6 photovoltaic power generation lecture note 7 wind power generation th lecture note 8 renewable energy generation in power systemth lecture note 9 impact of renewable energy on frequency control and reliabilityth lecture note 10 frequency. Sustainable energy science and engineering center energy conversion concerned with the transformation of energy from sources such as fossil fuel and radiation from sun into conveniently used forms such as electrical energy, propulsive energy, heating and cooling. For each energy source, including solar, wind, and biomass, potential applications are given and the challenges in using each resource are explained. Energy as this book is on solar energy, it is good to start the discussion with some general thoughts on energy. Please refer to official course syllabus and schedule. Fossil fuels fossil fuel energy is derived from the stability of the product molecules of combustion co2 and h2o relative to the hydrocarbon and o2. Types of collectors, collection systems, efficiency calculations, applications.
Gg 140 lecture 34 renewable energy open yale courses. Alternative sources of energy an introduction to fuel cells. Chapter 6 the solar system university of texas at austin. To many students, exciting projects like this are what solar energy is all about. Merewether abstract fuel cells are important future sources of electrical power and could contribute to a reduction in the amount of petro leum imported by the united states. This lecture includes a section discussing the importance of energy conservation and energy efficiency. Here are some of the lecture notes presented in the class. The cost of solar energy is also high compared to nonrenewable utilitysupplied electricity. Electric utilities in some local areas offer cash incentives some electric utilities offer cash rebates for solar installations. Ultraviolet c or uvc range, which spans a range of 100 to 280 nm. Irrigation water management more difficult for plants to uptake water.
Its potential is 178 billion mw, which is about 20,000 times the world. Solar energy is tenuous, undependable, and expensive beyond practicality. Wind energy ppt free download as powerpoint presentation. They are electrochemi cal devices similar to a battery and consist of a container, an.
An overview lecture note 2 fundamental of renewable energy supply lecture note 3 utilization of passive solar technology lecture note 4 solar thermal heat utilization lecture note 5 solar thermal power plants lecture note 6 photovoltaic power generation lecture note 7 wind power generation th. Some states such as arizona have a specific carveout for solar energy. Of course, we have to justify why solar electricity can. This presentation will introduce you to the entire field of solar energy. Solar energy notes and links archives sunwind solar car. Solar system gk notes in pdf our little corner of the universe is called the solar system. These turbines ideally need to be located in areas where there is strong wind and low atmospheric turbulence. Energy is one of the most important resources to sustain our lives. Table of contents solar energy 1 energy from the sun 1 early solar energy commercial adaption 3 applications of solar technology 3 architecture and urban planning 4. A first course in renewable energy iap 2009 massachusetts institute of technology instructor mohammadreza alam phd course description this is an engineering introduction to renewable energy technologies and potentials. Heading this effort is the office of electricity delivery and energy reliability. Energy from wind is acquired through the use of large wind turbines.