Exergy and Power Plants

By Andy May Key question: Can renewables ever replace fossil fuels and nuclear? Understanding the value of renewables, vis-à-vis fossil fuels and nuclear power, requires that we consider that all energy is not equal in value. In fact, the quantity we call energy can be misleading and many experts prefer the quantity called “exergy,” which…

The G-20 Drops Climate Change From Communique

Opposition from the United States, Saudi Arabia and others has forced Germany to drop a reference to financing programs to combat climate change from the draft communique at a G20 finance and central bankers meeting. A G20 official taking part in the meeting said on Friday that efforts by the German G20 presidency to keep…