The wind and sun are both free and almost infinite, and therefore each extra unit of energy generated is not only clean but also essentially free. With little downside to using more electricity when it is available, we’ll need to rethink energy efficiency. All those who want to see a cleaner, cheaper energy system will need to redefine “energy efficiency” to account for the importance of timing and location. Remember that using less electricity saves more money and emissions at some times of the day and in some places compared to others. Though it may be counter-intuitive, in times and places where renewable generation would otherwise be curtailed, it is actually desirable to use more electricity.
The Conversation 19th Jan 2018 read more »