“Building new coal-fired power plants is ill conceived,” said James E. Hansen, a leading climatologist at the NASA Goddard Institute for Space Studies. “Given our knowledge about what needs to be done to stabilize climate, this plan is like barging into a war without having a plan for how it should be conducted, even though information is available.

Image Italys Civitavecchia power plant is converting from oil to coal. Credit... Marco Di Lauro for The New York Times

“We need a moratorium on coal now,” he added, “with phase-out of existing plants over the next two decades.”

Coal’s Advantages

Enel and many other electricity companies say they have little choice but to build coal plants to replace aging infrastructure, particularly in countries like Italy and Germany that have banned the building of nuclear power plants. Fuel costs have risen 151 percent since 1996, and Italians pay the highest electricity costs in Europe.

In terms of cost and energy security, coal has all the advantages, its proponents argue. Coal reserves will last for 200 years, rather than 50 years for gas and oil. Coal is relatively cheap compared with oil and natural gas, although coal prices have tripled in the past few years. More important, dozens of countries export coal  there is not a coal cartel  so there is more room to negotiate prices.

“In order to get over oil, which is getting more and more expensive, our plan is to convert all oil plants to coal using clean-coal technologies,” said Gianfilippo Mancini, Enel’s chief of generation and energy management. “This will be the cleanest coal plant in Europe. We are hoping to prove that it will be possible to make sustainable and environmentally friendly use of coal.”

“Clean coal” is a term coined by the industry decades ago, referring to its efforts to reduce local pollution. Using new technology, clean coal plants sharply reduced the number of sooty particles spewed into the air, as well as gases like sulfur dioxide and nitrous oxide. The technology has minimal effect on carbon emissions.

In fact, the technology that the industry is counting on to reduce the carbon dioxide emissions that add to global warning  carbon capture and storage  is not now commercially available. No one knows if it is feasible on a large, cost-effective scale.