plz give me full details abt GREEN POWER. ....etc

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with the exception of hydroelectric power, most sources of renewable energy”solar, wind, and tidal power”have a pretty significant limitation: the energy source is variable. The sun isn't always up, the wind doesn't always blow, and the tides come and go, all of which leaves those running the energy grid with the challenge of evening out the power supply. Fortunately, this isn't actually a new problem, and there are many options being pursued for storing power from renewable sources.

Power companies have always faced the proble ....etc

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Presented By
Leanne Jones and Gemma Mansell


What is HEP
HEP (Hydroelectric Power) is an environmentally friendly way to generate electricity.
How it works
A dam is built to trap water, usually in a valley where there is an existing lake.Water is allowed to flow through tunnels into the dam,to turn turbines and thus drive generators.Notice that the dam is much thicker at the bottom than at the top,because the pressure of the water increases with depth.
A picture of how it works
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IGCC POWER PLANTS A new technology to answer global warming

INTRODUCTION
Developing cost-effective carbon capture technology is one of the most important environmental challenges facing the utility industry in the 21st century
.The process offers options to eliminate greenhouse gases, produce hydrogen and liquid fuels.
. The potential for carbon dioxide sequestration makes IGCC technology even more appealing and environmentally responsible. . A more complex, but even more economical option.
. In this techno ....etc

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Please help me for presentation on this topic. ....etc

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Global Issues: Ozone Depletion, Global Warming and Acid Rain

Introduction

Air pollution is exerting increasing impact on the environment. Humans have been altering the chemistry of the atmosphere on a global scale. These changes may:
Modify the global climate
Threaten the health of human beings
Create many environmental problems such as
Acid rain
Depletion of ozone layer
Global warming
Seriously upset the global ecosystem

What is ozone depletion?

Ozone is a highly reactive gas comprising ....etc

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The design, construction and maintenance of buildings has a tremendous impact on our environment and our natural resources. The buildings all together use the one-third of all the energy consumed in the country and two-thirds of all electricity. So the challenges is to build them smart, so that they use a minimum of nonrenewable energy, produce a minimum of pollution and costs a minimum of energy, while increasing the comfort, health and safety of the people who live and work in them. Here comes green buildings which alienates the isolation of ....etc

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