When it comes to reducing energy consumption and fighting climate change, a classical economic problem occurs, that of free riding. Free riding happens when those who benefit from consumption of certain goods or services do not take the full cost and consume excessively of that good. When it comes to fossil fuel use, we are all free riders: we all benefit from stable atmospheric CO2 concentrations, but rarely pay to maintain this stability (e.g. when emitting CO2 from heating and transport using fossil fuels). As individuals, we ask “why should I pay more for an electric car when my neighbour drives a diesel or SUV?” Companies, when asked to pay to offset emissions, fear loss of competitivity and threaten relocation and job cuts. Environment ministers may advocate high-level action but industry ministers counter that they are not affordable.
Another important barrier of many energy projects is the so-called rebound effect. “Buy a more fuel-efficient car, drive more1”. This is a significant consequence of projects about energy efficiency (EE), often underestimated. It characterises the negative relationship between technology and consumption2; technological improvements in EE induce increase in demand and therefore production, and consequently energy consumption.
Free riding and rebound effect critically undermine the Paris Agreement3, which seeks to limit global warming increase to 1.5°C, and EC policies that aim at reducing energy consumption. Large and attractive opportunities exist to reduce energy consumption through change of users’ behaviour.
Several economic approaches and business models (regulation, taxes, quotas and ETS) have been implemented to date. Despite all these we are unable to reach the objective of energy reduction. Even if existing country commitments are all met, global temperature is forecasted to rise by 2.6-3.1°C4. The risk for humanity due to climate change remains high, and the consequences expensive. Time is getting short to find the appropriate approaches that will allow to rapidly overturn this trend. The October 2018 IPCC report is calling for a radical change.
Can we really incentivize voluntary actions to change energy behaviour addressing the barriers that restrict long- term adoption, with a dedicated currency, an economic tool never tested so far ?