2022-01-25-欧盟委员会-欧盟能源展望2050_346页_8mb

Summary of JRC Science for Policy Report: The POTEnCIA Central Scenario

Core Content

This report presents the POTEnCIA Central scenario, an energy outlook for the EU up to 2050, based on existing policies and technologies as of the end of 2017. It serves as a reference scenario against which other policy scenarios can be compared. The study uses the POTEnCIA model, a comprehensive and transparent energy system model developed by the European Commission's Joint Research Centre (JRC), to simulate the evolution of energy demand and supply across all EU Member States.

Main Findings

• Energy Intensity: The EU's gross inland energy consumption decreases by 13% between 2015 and 2050, despite a 68% increase in GDP, indicating a nearly halving of energy intensity.
• CO₂ Emissions:
  • 24% reduction by 2020 compared to 1990 levels.
  • 30% reduction by 2030.
  • 53% reduction by 2050.
• EU Targets:
  • The 40% GHG reduction target by 2030 is not met under the Central scenario.
  • The 20% reduction target by 2020 is expected to be achieved.
• Climate Neutrality by 2050: The Central scenario does not align with the EU's long-term vision of achieving climate neutrality by 2050, as CO₂ emissions in 2050 remain at 47% of 1990 levels.
• Power Generation:
  • By 2050, 83% of electricity generation is CO₂-free, with 72% from renewable sources.
  • Flexible storage (e.g., batteries) and load following capabilities (e.g., EV charging, hydrogen production) support the integration of intermittent renewables.
  • Power plants with CCS account for 8% of net electricity generation in 2050.
• Sector Coupling:
  • Electrification in end-use sectors leads to a 27.5% increase in electricity demand by 2050.
  • Electro-mobility accounts for 60% of the additional demand, with the rest from industrial electrification.
  • This enhanced sector coupling enables a decrease in carbon intensity in these sectors.

Key Assumptions and Policies

• The Central scenario assumes no new policies are introduced beyond 2017.
• It includes the ongoing impact of existing policies and technological progress.
• EU Emissions Trading System (ETS) plays a central role, with CO₂ allowance prices rising due to a declining cap.
• Renewable energy technologies (solar PV, wind) become more cost-competitive.
• Building efficiency and electric heating (e.g., heat pumps) significantly reduce thermal energy demand.
• Electric vehicles (EVs) and improved vehicle efficiency lead to energy savings in transport.

Economic and Investment Impacts

• Energy-related operating and maintenance (O&M) costs increase by 34% per unit of energy consumed by 2050.
• Relative to GDP, these costs decline by 2.4 percentage points, from 12.2% in 2015 to 9.8% in 2050.
• Total investment expenditure required for the period 2016–2050 is 72.5 trillion €, or 11.5% of cumulative GDP.
• Major investment areas include vehicles and electric appliances, which account for 68% of the total projected investment.

Structural Changes

• Industrial energy consumption increases by 6% over the coming decades despite a 60% GDP growth.
• CO₂ emissions in the industrial sector continue to decline due to electrification, distributed heat, and less carbon-intensive energy carriers.
• Carbon capture becomes economically viable in the 2030s, accelerating emission reductions.

Methodology

• POTEnCIA is a mathematical economic model that uses a hybrid partial equilibrium approach.
• It combines behavioural decisions with imperfect optimisation, using detailed techno-economic data.
• The model simulates the behaviour of representative agents (e.g., households, businesses) who aim to minimise costs or maximise benefits under constraints such as comfort, technology, and environmental considerations.
• Discrete choice modelling is used to represent investment decisions.
• Non-linear relationships capture resource scarcity, infrastructure usage, and technology dynamics.
• Equilibrium prices are determined with a one-year lag to reflect the delay in price signal transmission.

Policy Context and Development Process

• The Central scenario was developed through an interactive and transparent process involving JRC, other Commission services, and Member States' national experts.
• The JRC-IDEES database provides historical data (2000–2015) and serves as the key input to the POTEnCIA model.
• Two national experts' workshops were held in 2018 to refine the model and scenario assumptions.
• The model and database are publicly available via the JRC Research Collaboration Portal.

Conclusion

The Central scenario highlights the progress made by the EU in decarbonising its energy system through existing policies and technologies, but also reveals the need for additional measures to meet 2030 and 2050 climate and energy targets. It demonstrates that sector coupling and electrification are key drivers of carbon intensity reduction, but that current policies are insufficient to achieve climate neutrality by 2050. The study underscores the importance of model transparency, data consistency, and cross-sectoral collaboration in shaping effective energy and climate policies.