It was a key element of the deal Washington made with Pyongyang to provide North Korea with fuel for electric powerplants until two large civilian nuclear stations are completed.
From the Bush White House, they're talking about large-scale technology: oil and gas, nuclearpowerplants and clean coal research, which will cost billions of dollars and will take years.
The production of modern wind turbines, solar panels and nuclearpowerplants are extremely energy-intensive enterprises, and are by and large powered by the burning of fossil fuels.