Red Stack Vs. Green Stack

When analyzing the energy consumption of a country and determining how much each item contributes, it is helpful to utilize the Red Stack Vs. Green Stack technique. The red stack represents the summation of energy consumption. This stack is generally split up into energy consumption used for transportation, heating and cooling, lighting, information systems, food, and manufacturing. The green stack is a breakdown of sustainable energy production such as wind, solar, hydroelectric, etc. The purpose of putting these stacks next to each other is to answer the question, “Can we live on sustainable energy sources?” An example of how this completed breakdown will look is displayed below. Here David JC MacKay broke down energy consumption and sustainable energy for the UK. We will be going through and doing the same breakdown for Hong Kong, to see what the chances are of Hong Kong being able to run purely on sustainable energy sources.