By making available the almost unlimited energy stored in prehistoric plant matter, coal enabled the industrial age – and it still does. Coal today generates more electricity worldwide than any other energy source, helping to drive economic growth in major emerging markets. And yet, continued reliance on this ancient rock carries a high price in smog and greenhouse gases.

We use coal because it is cheap: cheap to scrape from the ground, cheap to move, cheap to burn in power plants with inadequate environmental controls. In this book, Mark Thurber explains how coal producers, users, financiers, and technology exporters drive this supply chain, while fragmented environmental movements battle for full incorporation of environmental costs into the global calculus of coal. Delving into the politics of energy versus the environment at local, national, and international levels, Thurber paints a vivid picture of the multi-faceted challenges associated with continued coal production and use in the twenty-first century.

Coal has been the world's fastest-growing energy source in absolute terms for over a decade. Coal also emits more CO2 than any other fossil fuel and contributes to serious air pollution problems in many regions of the world. If we hope to satisfy the demand for affordable energy in emerging economies while protecting the environment, we need to develop a keen understanding of the market that supplies coal. This book offers an in-depth analysis of the key producers and consumers that will most influence coal production, transport, and use in the future. By exploring how countries such as China, India, Indonesia, Australia, and South Africa have developed their respective coal industries -- and how these industries link together through the international coal trade -- experts shed light on how the global coal market may evolve, and the economic and environmental implications. This book is the most comprehensive treatment of these topics to date and will appeal to a wide readership, including scholars and practitioners working on energy economics and policy.

Abstract

We compare the cost of generating electricity with coal and wind in Chile’s Central Interconnected System (SIC). Our estimates include the cost of marginal damages caused by coal plant emissions.

On average, we estimate that the levelized cost of coal, including externalities, is $84/MWh. It is efficient to abate emissions of air pollutants (SO_x, NO_x and PM_2.5) but not of CO₂. Then the cost wrought by environmental externalities equals $23/MWh, or 27% of total cost. Depending on the price of coal, the levelized cost of coal may vary between $72 and $99/MWh.

The levelized cost of wind is $144/MWh with capacity factors of 24%. This cost includes the cost of backup capacity to maintain acceptable loss of load probability (LOLP), which equals $13/MWh or 9% of total cost. The levelized cost of wind varies between $107/MWh with capacity factors of 35% to $217/MWh with capacity factors of 15%.

We conclude that wind is competitive only when it achieves capacity factors around 35% and coal prices are very high. So far the average annual capacity factor achieved by existing wind farms in Chile has been less than 20%, which suggests why wind has developed only slowly.