Something New

Six months--how they go by in a flash! Well, I may have taken a break from blogging, but the world is still moving. Happily, today's news indicates we're moving a step forward into the 21st century. The EPA just released NEW proposed rules for carbon limits for NEW power plants. This is good news. These rules would make it extremely difficult to get a new coal-fired plant approved, due to the amount of CO2 released from the burning of coal. Natural gas facilities, and of course renewables (wind, solar, etc) would have a much easier time passing the standards. The new rule caps CO2 emissions at 1100 lbs of CO2 emitted for each megawatt hour of electricity produced.

Why pick on coal? Simply put: coal is responsible for more CO2 emissions than other sources. In 2012, coal fired plants accounted for 18% of the energy consumed nationwide, but were responsible for 31% of energy related carbon emissions.

Anyone who watches television has seen ads for "clean coal technology." (Also known as Carbon Capture and Sequestration, or CCS). Unfortunately, CCS is an idea that hasn't really left the drawing board--yet. The problem with capturing and storing CO2 on a large scale is that it is currently unfeasible for two major reasons. First, from a logistical standpoint we lack the infrastructure to capture, transport, and store, significant amounts of CO2. Further, the energy required to do so negates most of the energy generated in the first place. It makes little economic sense.

Could that change in the future? Certainly. A few new coal-fired plants are being built in the U.S. and Canada that may be able to capitalize on technological advances. Interestingly the coal industry that promotes clean coal technology is fighting the new EPA rules--because even the coal industry cannot say if these new plants will actually be successful.

The EPA is doing what it can to limit the amount of CO2 entering the atmosphere, and it is going after one of the biggest sources of CO2 with these new regulations. The next step will be tightening the regulations on existing power plants, especially the handful of oldest, dirtiest plants that are responsible for such a disproportionate amount of the CO2 emitted in the US.