Essay Disadvantages Of Renewable Energy

BIOFUEL ADVANCES AND ITS APPLICATION - A REVIEW

Abstract

1. INTRODUCTION

Our main energy sources for human activity are fossil and mineral fuels, nuclear sources. They are harmful to environment because they cause ozone layer depletion, global warning and ecological devastation. Actual energy production can be considered a harmful both in pollution and environmental impact since the industrial revolution in the 18th century. Around 80% of CO2 emissions in the world are originated by the energy sector. Clean power generation processes are from renewable energy sources like solar, wind, geothermal, tidal etc. The energy production alternatives are limited because of high cost and implications on the environment. This makes these processes unsuitable. [1] Renewable energy is energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy replaces conventional fuels in four distinct areas: electricity generation, air and water heating/cooling, motor fuels, and rural

Advantage of many renewable energy sources are lack of emission of greenhouse gas and other emissions while comparing with fossil fuel combustion. Most of the renewable sources do not emit carbon dioxide and do not produce more waste. A renewable energy system converts the energy found in sunlight, wind, falling‐water, sea waves, geothermal heat, or biomass. They are converted into a form, which we can use such as heat or electricity. Most of renewable energy comes directly or indirectly from sources that can never be exhausted, and therefore they are called renewable. Most of the world’s energy sources are derived from sources like fossil fuels such as coal, oil, and natural gases. These fuels are termed nonrenewable energy sources. Various types of renewable energy