Submitted:
01 August 2023
Posted:
02 August 2023
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Abstract
Keywords:
1. Introduction
2. Energy sufficiency approach
- Focussing on sufficiency only in terms of demand reduction takes attention away from the need to ensure adequate energy services for everyone (link to social wellbeing and equity);
- Pointing to specific, conscious individual decisions and actions to change lifestyle draws attention away from the unconscious, routine nature of many activities associated with energy consumption;
- Infrastructures of supply and demand, which greatly influence the possibilities (agency) open to individuals, may not receive enough attention if sufficiency is framed primarily in terms of lifestyle choices (risk of lock-in to high-consuming practices through design and construction of the built environment).
3. Methodology
4. Energy sufficiency policy instruments
- Reduction: The reduction strategy aims to aims to reduce energy service levels by influencing the intensity and duration of use (e.g., switching off lights, number of washing cycles per week, distance travelled by passengers or goods) or determining the size and nominal capacity of equipment and buildings whose use necessitates the consumption of energy (e.g., decreasing heated floor space, using a smaller car).
- Substitution: The substitution strategy aims to substitute certain energy-intensive services with less energy-intensive services, implying changes in social and behavioural practices. This for example includes shifting from individual motorized transport to public transport or cycling and walking.
- Sharing: The sharing strategy emphasizes collective resource use and cooperation, aiming to reduce individual energy demands by sharing goods (products or appliances) or buildings (from co-working spaces to shared laundering areas in collective housing). Examples include carpooling to reduce transportation energy consumption or sharing community spaces with energy-efficient appliances.
- minimized heating of unnecessary areas of the building and hours;
- appropriate sizing of dwellings and other structures, such as sizing dwellings to meet resident needs;
- reduced indoor temperature;
- sharing floor space and engaging in communal living.
5. Policy instruments for energy sufficiency policy intervention
- ECONOMIC - energy pricing instruments connect to both the environmental limits and energy poverty aspects of energy sufficiency. Electricity and natural gas transmission charges and energy tariffs in addition to excise taxes are the main economic instruments used to shape energy price policy. Depending on how these instruments are designed they support energy efficiency, substitution, as well as sufficiency. Transmission changes distribute costs evenly among energy users, but proportionally high transmission costs discourage energy savings and increase the energy costs for a household with low energy consumption thus increasing the effective price per kWh for those households. Since energy spending is generally very inelastic and is a significant share of income for less-prosperous households, energy taxes tend to be regressive [27]. Progressive energy prices would be a better instrument to stimulate sufficiency and energy conservation. They exist in several countries, e.g., South Africa and Latvia have introduced a ‘poverty tariff’, In South Africa first 50 kWh per month of free electricity [28], but in Latvia households with 3 and more children receive subsidized electricity for the first 200 kWh per month. Latvia also has introduced a progressive demand capacity charge for power connections above 16A. Currently, the main focus on tariff development is on time-of-use pricing, due to concerns about peak electricity demand and the integration of renewables into the electricity supply [13]. Thus more active citizen involvement in the energy market is expected and there is a clear need to encourage energy citizenship. Nevertheless, these price signals are not enough to realize the full potential of energy sufficiency as they are not addressing all the barriers related to the energy transition.
- INFRASTRUCTURE AND CHOICE ARCHITECTURES – energy infrastructure (e.g., buildings, transport networks, provisioning systems) in most cases is out of the direct control of individuals and can have an enormous influence on behavioral patterns. For example, urban planning to support car free living can be strong support for energy sufficiency. Many energy-sufficiency measures require no or very little infrastructure. This means they can be implemented quickly and require low investments. This frees up resources for investments in other energy transition initiatives, like public transportation networks. However, technologies and infrastructure can also be effectively used to support sufficiency action, e.g., thermostats in buildings help minimize indoor air temperature, investments in cycling and pedestrian infrastructure (bike lanes, repair, parking, etc.) and shared infrastructure (e.g., communal laundry facilities) help minimize fossil fuel and material use.
- INFORMATION - energy product labeling and energy sufficiency advice are the two main communication tools used to promote energy sufficiency. Lack of information and motivation could be important barriers to energy sufficiency action. Energy labeling is one of the cornerstones of the EU energy product policy. However, many academics propose switching to absolute measures (e.g., kWh/cycle rather than kWh/kg/cycle) and from linear to progressive standards [13,26] used in the labeling criteria, e.g., the current EU eco-label encourages larger washing machines (easier to achieve A+++) as it is easier for producers to reach higher energy efficiency standards per kg of closing washed, but could increase the total energy consumption as small households can not load them to full capacity. We also have to acknowledge the potential for energy sufficiency advice which are are even more acute now with high energy prices when people and companies are eager to save energy. However, sometimes energy savings are dependent on external infrastructures and services, e.g., policy workshops recognized the important role of thermostats to adjust heat indoor air temperature depending on the use of premises. Research also shows that personalized energy sufficiency advice can be much more effective than general information campaigns.
- REGULATION AND STANDARDS – this includes e.g., various measures implemented at the national level to promote sufficient energy use. These include national building codes that set guidelines for construction, territorial planning regulations that shape land use and urban planning, and regulations setting thermal and humidity set-points in buildings. Additionally, sufficiency regulations may involve setting urban speed limits to 30 km/h and mandating spaces within buildings for bicycles, wheelchairs, strollers, and line drying. These measures contribute to improving energy sufficiency, reducing GHG emissions, enhancing safety, and creating more sustainable and livable communities.
6. Sufficiency policy approach in mitigating energy price increase
6.1. Denmark
- Individual gas boiler;
- District heating areas with a gas share of more than 65 percent or areas based on combinations of electricity and gas with corresponding average price increases;
- Households with electric heating as the primary heat source (electricity panels and heat pumps) are experiencing a corresponding price increase.
6.2. Latvia
- The state will cover the costs of payments of the mandatory procurement component for electricity and electricity system services at a 100% rate. Around 860 000 clients (households, companies, governmental/municipal institutions) will benefit and the total costs of the measure are 84.7 million EUR (on average around 98 EUR per client for the 4-month period);
- For district heating tariffs up to 150 EUR/MWh, the state compensates 50% of the tariff that exceeds the established threshold – 68 EUR/MWh, and 90% of the tariff that exceeds 150 EUR/MWh. It is estimated that most district heating users will be affected by this measure (around 78 500), but the costs of the measure are around 7 million EUR.
-
The support for households with annual natural gas consumption for heating is differentiated:
- o
- For households with annual consumption between 21-500 m³ state compensation will be 0,03045 EUR/kWh;
- o
- For households with annual consumption above 500 m³ state compensation will be 0,02279 EUR/kWh.
- For families, support for each child is 50 EUR per month (covers 397 936 persons with a total budget of 80 million EUR) and 20 EUR per month for all seniors (553 000 people, 44 million EUR) as well as disabled people.
- Partial compensation for the increase in the price of electricity for households that use electricity for heating their homes. The compensation (50% of the electricity price, which exceeds 0.16 EUR/kWh) is applied to electricity consumption above 500 kWh, but not more than 2000 kWh.
- The aid for natural gas consumption above 221 kWh per month is set to 35 EUR/MWh.
- The reduction in the district heating service charge applicable to households is set to be 50% of the difference between the tariff and the median heat tariff of 68 EUR/MWh.
- The cost of pellets or briquettes would be compensated for 50% if costs exceeded EUR 300/tonne, but the sum for compensation would not exceed EUR 100/tonne.
- The increase in the cost of wood is compensated at 50% if costs exceeded 40 EUR/m3 but not more than 15 EUR/m3.
6.3. Lithuania
7. Discussion and Recommendations
- PROMOTION OF ENERGY-SUFFICIENT SERVICES (house & car-sharing, from product to service, communal laundry facilities, etc.) through public awareness, information, and motivation programs, but their establishment may also need financial incentive programs and/ or public investment.
-
LIMITING DWELLING FLOOR AREA PER PERSON:
- Different reasons behind (e.g., wealth, inelasticity) – need for different approaches;
- ECONOMIC - waive tax for the acquisition of real estate (or property tax), when moving to a smaller dwelling;
- INFRASTRUCTURE/CONSTRUCTION CODES – flexible apartments - comparably small, but completed by rooms for communal use (Munich);
- REGULATION - a centralized cap for new living space (very problematic to introduce).
- PRACTICE-ORIENTED POLICY - understanding that practices compete for resources (time, energy, and money). When formulating policies, it is essential to acknowledge this competition and consider how different practices may impact resource allocation and sustainability. This approach involves identifying barriers and incentives that influence the adoption of specific practices and designing policies to promote more sustainable and resource-efficient behaviors.
8. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
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