Apparently the German government (one of the coalition parties is ironically the Green party) is now clearing the way to fire up the coal power plants again in order to save natural gas for the winter.
For whatever reason, they cannot seem to get their nuclear power plants up again, so barring that option, coal is a reasonable policy option. Apparently opening up more solar and wind farms wasn’t on the docket.
However, there are considerable logistical issues to solve. Perhaps the internet has caused most people to think that you can start and stop things with a switch. Physical markets take a much longer time to start and stop than most think.
Let’s take some basic facts from the EIA and run some simple math.
It takes 1.12 pounds of coal to generate a kilowatt-hour of energy. This is the energy equivalent of one kilowatt of power during an hour. Most standard microwaves, when running, consume 1.2 kilowatts. Most hot water kettles use 1.5 kilowatts.
If you wanted that kilowatt of power for an entire day, you need 26.88 pounds of coal.
If you wanted that kilowatt of power for an entire year, you need 9,811 pounds of coal. To give some perspective of what 9,811 pounds is, think of three Toyota Corollas with a couple average-sized passengers each.
A kilowatt is not a large amount of power in the grand scheme of things. Power plants run into the hundreds of megawatts of capacity. Viewing the coal power map of Germany, say they wanted to re-start a 800 megawatt plant. This would replace 52 billion cubic feet (yearly) of natural gas. How much is 52 billion cubic feet? It is about the amount of natural gas that can be carried by 10 large LNG tankers.
An 800 megawatt coal plant would require the daily consumption of 21,500,000 pounds of coal and yearly consumption of 7,840,000,000 pounds of coal. These numbers, when written out wholly, are a bit ridiculous, so we say 10,700 tons and 3.92 million tons, respectively.
Over land, coal is typically shipped by rail. A coal rail car carries 116 tons of coal. Thus, your typical 800 megawatt coal plant needs approximately 92 rail cars of coal to operate, daily.
Needless to say, this is a gigantic amount of mass for one coal power plant. You need specialized machinery and the people with the appropriate training to haul it out of the ground, transport it, and get it into a boiler furnace.
When you tell an entire industry for over a decade that they are no longer needed, competent managers will operate the business on a run-down mode. Capital investment is minimal, and worker training programs are halted. Unions tend to prefer seniority, so younger people in the business go elsewhere. Know-how gets lost and things start to atrophy.
Now the message is “get started, but after you’re done bridging the gap while we solve the problem with our LNG capacity issues we’re going to shut you down again after a few years”, it is hardly confidence-inspiring. Nobody will want to invest time and energy into the industry unless if there is a huge financial incentive to compensate for the blade that is still over the necks of the coal mining industry.
There will still be a huge lack of capital, both monetary and knowledge, to ramp up an operation to produce 7,840,000,000 pounds of coal yearly in the name of saving natural gas. An entire industry cannot be turned on and off like a light switch.
The result is that the domestic price of coal will skyrocket.