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Energy sufficiency policy : an evolution of energy efficiency policy or radically new approaches?
(2015)
In the last four decades, energy efficiency increased significantly in OECD countries. However, only during the most recent years, total energy consumption started to decrease a little, and much more slowly than energy efficiency potentials would suggest. Energy sufficiency has therefore gained new attention as a way to limit and reduce total energy consumption of a household or a country overall.
The project "Energiesuffizienz" funded by the German ministry for research has examined what energy sufficiency actually is, and what householders, household members but also manufacturers and local authorities could do to make electricity use in the home more sufficient. The focus of this paper is the policy part of the project - the first comprehensive analysis of an energy sufficiency policy.
The objective is to find out how policy can support market actors in using the energy sufficiency options identified. As for energy efficiency policy, it starts with the gathering of potential sufficiency actions and the analysis of the relevant barriers all market actors face, to derive recommendations for which policy instruments need to be combined to an effective policy package, and which other pre-conditions have to be met. Energy efficiency and energy sufficiency should not be seen as opposed to each other but work in the same direction - saving energy. Therefore, some instruments of the energy sufficiency policy package may be the same as for energy efficiency - such as energy taxation, and linear or progressive energy prices. Some may simply adapt technology-specific energy efficiency policy instruments. Examples are progressive appliance efficiency standards, standards based on absolute consumption, or providing energy advice. However, sufficiency may also require radical new approaches particularly to mitigate the drivers of non-sufficiency. They may range from promotion of completely different services for food and clothes cleaning, to instruments for limiting average dwelling floor area per person, or to a cap-and-trade system for the total electricity sales of a supplier to its customers, instead of an energy efficiency obligation. The paper presents these and other elements of an integrated energy sufficiency policy package resulting from this analysis.
Energy efficiency of a range of domestic appliances covered by the labelling and ecodesign directives has improved significantly over the last 15 years. However, the power consumption of the German residential sector has remained relatively constant over this period. Besides other factors, such as decreasing average household size, the main reasons for this development were the increases of the types, features, size, equipment stock and usage times of appliances and devices in private households.
The project "Energy Sufficiency - strategies and instruments for a technical, systemic and cultural transformation towards sustainable restriction of energy demand in the field of construction and everyday life" investigates how the complementation of energy efficiency with energy sufficiency could lead to more user adequate domestic products and product-service systems and thereby result in an absolute reduction of power consumption.
In this project, energy sufficiency is defined as a strategy to reduce energy consumption by three approaches:
1. Quantitative reduction of sizes, features, usage times of devices etc.
2. Substitution of technical equipment in households by e.g.urban services.
3. Adjustment of technical services delivered by appliances toutility needed and desired by users.
The energy saving effects of an application of these approaches were modelled for different types of households and the energy saving potentials of energy sufficiency quantified. Innovative approaches for user adequate products and services were developed in open innovation workshops by the Design Thinking method. The paper summarizes some of the intermediate results of theoretical and transdisciplinary investigations of the project that runs until May 31, 2016. Furthermore, a first set of design criteria for user adequate appliances enabling energy sufficiency are developed based on these results. The paper concludes with suggestions for the future development of energy labelling and ecodesign derived from the design criteria and supplemented by examples of existing requirements according to the voluntary environmental label "Blauer Engel".