Belgium

Key facts

Belgium is 18% electrified. [1]

Belgium consistently produces and transmits roughly 80 TWh of electricity annually, mainly from nuclear and renewables. [2]

Belgium imports 14 TWh of electricity a year. [3]

  • The Belgian electricity to price gas ratio for industry is 3.1 and households is around 4. [4]
The Belgian electricity mix is split between
  • Nuclear
  • Wind
  • Natural Gas
  • Solar PV
  • Biofuels
  • Coal
  • Other

Current state of electrification

Residential buildings in Belgium

Buildings

Sources [5]

  • Buildings represent a big share of the Belgian electricity consumption:
    • 21.5% of the electricity consumption for residential
    • 27.6% for commercial and public services
  • Belgium counts 250 000-300 000 installed heat pumps [6]
  • Space heating remains heavily dominated by fossil natural gas and heating oil networks, keeping overall household electrification locked in.

Industry

Sources [7]

  • Total Industrial Demand: ~37.3 TWh – 45% of the Belgian electricity consumption.
  • The most electricity intensive sectors are:
    • Chemicals & Petrochemicals: ~5.0 to 5.7 TWh 34-38% of the industrial electricity consumption. Represents the largest natural gas and electricity consumer hub (located primarily around the Port of Antwerp). [8]
    • Food, beverage and tobacco: ~1.7 to 2.1 TWh 12% to 14% of the industrial electricity consumption
    • Iron, steel and non ferrous metals: ~2.8 to 3.4 TWh 20-22% of the industrial electricity consumption
Industry — from the design
Transport — from the design

Transport

Sources [9]

  • Transport represents 3.5% of the Belgian electricity consumption. The statistics for Belgian vehicles all come from Statbel for 2025 [10]
  • Approximately 487 406 passenger cars (+ 83 329 year on year) – representing 7.94% of the 6.136.034 cars on Belgian roads
  • 11 861 light commercial vehicles (+ 2 293 year on year) -– representing 1.48% of the roughly 800,000 light commercial vehicles on the Belgian roads
  • 568 electric trucks registered in 2026 (+ 59 year on year) – 0.28% of the roughly 200,000 trucks on Belgian roads
  • 1112 electric buses registered in 2026 (+91 year on year) – 6.55% of the 16 966 buses on Belgian roads
  • 97 158 light vehicles (+ 2 835 year on year) – 17.58% of the 552.27 light vehicles on Belgian roads

Grid and flexibility

Transmission & Distribution

On the generation side, the country continues to rapidly deploy solar PV and expand its North Sea offshore wind capacity, though the European Commission’s early 2026 assessment of Belgium’s updated National Energy and Climate Plan (NECP) notes that more ambition is still needed to close implementation gaps in renewable heating and energy efficiency.
This surge in variable renewables, combined with the rapid electrification of industrial processes, heat pumps, and heavy-duty transport, has triggered localised grid congestion at the interfaces between the transmission grid (Elia) and distribution networks (Fluvius in Flanders, ORES/RESA in Wallonia). [11]
In response, Flanders has actively restricted traditional “always-on” grid connections; for new or upgraded connections exceeding 100 kVA in congested “orange zones,” operators now mandate flexible connection contracts that allow for grid-directed curtailment. [12]

Storage

To bridge the gap while physical grid reinforcements are built, Belgium is pivoting heavily toward battery storage and demand-side flexibility.
Simultaneously, the regulatory landscape is shifting to incentivise active participation: initiatives like Flanders’ Fall-back Flex framework allow developers to bypass connection queues by bidding localised flexibility, while pilot projects like FastTrack aFRR on LV are testing how low-voltage users (including smart domestic heat pumps and EV chargers) can provide automated balancing services directly to the transmission grid. [13]
Pumped hydro storage: 1 164 MW. The Coo-Trois-Ponts pumped-storage hydroelectric power station in Liège (operated by ENGIE Electrabel) serves as Belgium’s main large-scale, long-duration energy storage asset. [14]

BESS: ENGIE’s Vilvoorde BESS (200 MW / 800 MWh), one of the largest operational battery parks in Europe. Ruien (25 MW operational, with a 100 MW expansion underway), Kallo (100 MW / 400 MWh), and Drogenbos (80 MW / 320 MWh). [15] [16]

Smart meters

Out of Belgium’s approximately 5.3 million total electricity delivery points, around 50% to 55% are currently equipped with a smart/digital electricity meter. [17]
Flanders: 2.2-2.4 million smart meters, 80% covering
Wallonia: 250 000-350 000, 10-15% covering
Brussels: 100 000-120 000, 15% covering

Support schemes

Electric Vehicles (EVs)
Corporate Tax Deductibility [18]

100% tax-deductible for all zero-emission corporate vehicles ordered before January 1, 2027 (Fossil fuel and plug-in hybrid vehicles have been reduced to 0% corporate deductibility).

Benefit-in-Kind (BiK) Advantage [19]

Electric company cars maintain the lowest possible calculation rate (fixed at 4%), minimising personal income tax for employees using a corporate vehicle.

Regional Road Taxes (BIV) [20]
  • Brussels & Wallonia: Drastically reduced registration tax (BIV) locked at the absolute statutory minimum (~€61 to €74).
  • Flanders: fully electric vehicles (BEVs) are 100% exempt from both the Registration Tax (Belasting op Inverkeerstelling – BIV) and the Annual Road Tax (Jaarlijkse Verkeersbelasting).
Home Charging Reimbursement [21]

Companies can reimburse employees for electricity used to charge company cars at home completely tax-free, provided it is tracked via a certified “smart” charging station.

Heat Pumps
Flanders: Mijn VerbouwPremie (Direct Grant) [22]

Income-scaled grants to replace old fossil heating with a heat pump:

  • Lowest Income: Up to €6,000 (air-to-water) or €8,000 (geothermal).
  • Highest Income: Capped at €1,500 (air-to-water) or €4,000 (geothermal).
Wallonia: Prime Habitation (Direct Grant) [23]

Grantholders can receive up to €6,000 (via the Rénopack scheme), covering up to 70% of the total installation invoice. Requires a mandatory home energy audit before starting.

Brussels: ECORENO Credit (Financing) [24]

Suspended Regional Grants: The previous Rénolution grants were entirely dissolved. Brussels now provides low-interest or zero-interest ECORENO consumer loans instead of cash-back.

Industry
Corporate Investment Deduction [25]

Under the overhauled Belgian tax reform framework (effective for investments made from 2025/2026), the basic tax deduction rate was raised to 10.5%, while the Thematic Investment Deduction (which covers green technology, energy efficiency, and zero-emission transport) was streamlined up to 40% for SMEs and 30% for larger enterprises.

REG (Rational Energy Use) Subsidies [26]

Regional industrial funds that grant financial capital directly to factories incorporating high-temperature process heat pumps or waste-heat recycling infrastructure to phase down gas use.

Targets

Belgium relies on a fragmented regional approach (Flemish, Walloon, and Brussels-Capital frameworks) coordinated loosely under its National Energy and Climate Plan (NECP). [27]

Buildings

  • Regulated mostly via regional mandates. New builds face strict gas-grid connection bans (Flanders), but structural changes focus heavily on energy efficiency insulation certificates rather than direct heat pump mandates. [28]

Industry

  • Dominated by localised cluster strategies (e.g., the Port of Antwerp-Bruges). Promotion of industrial heat pumps and electrification pathways via regional initiatives (e.g., Flanders Moonshot program); integration with upcoming regional hydrogen and carbon-capture infrastructure.

Transport

  • High fiscal targeting. Since 2026, new company cars must be zero emission, or they don’t benefit from any fiscal advantages. The federal government enacted tax reforms that eliminate corporate tax deductibility for fossil-fuelled company cars, effectively forcing the complete electrification of the massive corporate fleet segment. [29]

Gaps and Challenges

Transport: Electrification is entirely driven by the corporate sector. The private consumer market and secondary/used-car markets remain overwhelmingly dominated by combustion engines.

Infrastructure: with the deployment of electrification and the rise of decentralised renewables, the Belgian electricity grid is starting to face serious structural congestion.

Negative power pricing: Massive uncoordinated solar expansion has triggered a surge in negative wholesale price hours (over 500 hours recorded annually), indicating a critical lack of utility-scale storage. [30]

Nuclear phase-out friction: Structural uncertainty regarding the long-term timeline of reactor shutdowns leaves baseline grid reliability highly exposed.

Assessment

Buildings

Lacking

Despite high overall development, residential heat pump deployment is slow due to complex, fractured regional subsidy rules and a historical reliance on gas infrastructure.

Transport

On track

Corporate fleet electrification is a European success story driven by clever fiscal tax policy. However, long-term success requires replicating this momentum in the private buyer segment.

Industry

Lacking

The chemical and heavy manufacturing baseline requires enormous volumes of clean energy. Grid capacity and alternative fuel availability cannot currently match industrial decarbonisation speeds.

Power System

On track

Exceptional performance in offshore wind and solar capacity expansion, pushing total renewable generation to 30%. Baseline stabilisation remains contingent on nuclear extension strategies.

Grids

Lacking

The transmission operator (Elia) is investing heavily, but distribution networks (DSOs) are facing highly localised, low-voltage stress from rapid EV and solar integration.

Policy Framework

Lacking

Lacks a single, cohesive national 2050 carbon-neutrality law. The division of powers between the federal government and the three distinct regional governments creates regulatory friction.

  1. 1IEA, “country profile Belgium”, accessible here.
  2. 2IEA, “country profile Belgium”, accessible here.
  3. 3Elia, “Electricity mix in 2025: 21% increase in solar generation pushes renewables to new high, imports continue to rise, nuclear declines but still accounts for 34% of Belgian generation”, accessible here.
  4. 4European Commission, “Electrification Action plan”, accessible here.
  5. 5IEA, “country profile Belgium”, accessible here.
  6. 6L’avenir, “Une consequence de la hausse des prix de l’énergie: le nombre de pompes à chaleur vendues à augmenté de 15% au premier trimester 2026”, accessible here.
  7. 7IEA, “country profile Belgium”, accessible here.
  8. 8CEFIC, “Landscape of the European chemical industry, Belgium”, accessible here.
  9. 9European Commission, “Alternative fuels observatory: Belgium”, accessible here.
  10. 10Statbel, “Vehicle stock”, accessible here.
  11. 11European Commission, “Commission Assessment: Belgium’s NECP shows increased ambition, but requires more effort and implementation”, accessible here.
  12. 12AA, “Belgian grid congestion risks billions in economic losses, employers warn”, accessible here.
  13. 13Ingenium, “Grid congestion in Flanders: why you need to take action now to meet your future energy needs”, accessible here.
  14. 14VNR, “BESL‑2026‑33: Wijziging Fall‑Back Flex”, accessible here.
  15. 15Power Technology, “Power plant profile: Coo Trois Ponts, Belgium”, accessible here.
  16. 16ENGIE, “BESS battery pack Vilvoorde”, accessible here.
  17. 17ENGIE, “ENGIE starts construction of one of Europe’s largest battery parks in Belgium”, accessible here.
  18. 18Synergrid, "Des compteurs intelligents et communicants en Belgique", accessible here. here
  19. 19FPS Finance, "Company car tax allowance: how to calculate the taxable benefit", accessible here. here
  20. 20Ayvens Belgium, "Taxation of company cars", accessible here. here
  21. 21Service Public de Wallonie, "Taxe de mise en circulation (TMC)", accessible here. here
  22. 22FPS Finance / CREG, "Tax-free reimbursement of home charging costs for company cars", accessible here. here
  23. 23Flemish Government, "Mijn VerbouwPremie voor warmtepomp", accessible here. here
  24. 24Service Public de Wallonie, "Prime Habitation - Installation d'une pompe à chaleur", accessible here. here
  25. 25Fonds du Logement Bruxellois, "ECORENO Credit - Preferential Loans for Energy Renovation", accessible here. here
  26. 26FPS Finance, "Investeringsaftrek / Déduction pour investissement - Verhoogde thematische aftrek", accessible here. here
  27. 27Fluvius, "Premies voor zakelijke klanten - Rationeel Energiegebruik (REG)", accessible here. here
  28. 28European Commission, “Belgium NECP”, accessible here.
  29. 29European Commission, “Commission Assessment: Belgium’s national energy and climate plan shows increased ambition, but requires more effort and implementation”, accessible here.
  30. 30Flemish Energy and climate agency, “Flemish Energy & climate plan”, accessible here.
  31. 31Electricity Maps, “Electricity Grid Review 2025: Belgium”, accessible here.