Belgium's grid in 2026 — what changed
- Only two nuclear reactors are left: Doel 4 and Tihange 3 (about 2 GW together). Both were overhauled for long-term operation and restarted in 2025 — Tihange 3 on 10 July, Doel 4 on 8 October — with a licence to run until 2035.
- Five reactors have closed for good: Doel 3 (September 2022), Tihange 2 (January 2023), Doel 1 (February 2025), Tihange 1 (September 2025) and Doel 2 (1 December 2025).
- The phase-out law is gone: in May 2025 the federal parliament repealed the 2003 nuclear phase-out law, opening the door to running reactors beyond 2035.
- Solar broke records: Belgian solar produced about 10.1 TWh in 2025 (+21% on 2024), and the country saw 519 hours of negative day-ahead prices, mostly on sunny, windy afternoons.
- What that means on this dashboard: the nuclear bar is smaller than a few years ago, gas plants and imports from France and the Netherlands fill the gap on calm evenings, and midday prices can drop below zero.
Free Belgium Electricity Monitoring — Powered by Elia Open Data
This free Belgium power grid dashboard delivers real-time reporting on the country's entire electricity system using live data from the Elia Open Data API. Elia is Belgium's sole transmission system operator (TSO), responsible for managing the high-voltage grid from 30 kV to 380 kV across the entire country. Every data point displayed on this dashboard — from nuclear and gas generation to offshore wind production and cross-border electricity flows — comes directly from Elia's official telemetry systems, updated automatically every two minutes.
Belgium's electricity generation mix is one of the most dynamic in Europe. The country operates a diverse portfolio that includes nuclear power plants at Doel and Tihange, large-scale offshore wind farms in the North Sea with over 2.26 GW of installed capacity, a growing fleet of onshore wind turbines, rooftop and utility-scale solar installations, gas-fired combined-cycle power plants, biomass facilities, and the Coo-Trois-Ponts pumped-storage hydroelectric station. This dashboard visualises the real-time share of each fuel type in a live generation mix chart, making it easy to see exactly how Belgium is producing its electricity at any given moment.
Grid Frequency & System Stability Reporting
The grid frequency display shows the real-time frequency of Belgium's electricity grid, which operates as part of the Continental European synchronous area at a nominal 50.000 Hz. This is one of the most critical indicators of grid health — any deviation from 50 Hz signals an imbalance between electricity generation and consumption. Elia publishes frequency measurements at 10-second intervals, and this dashboard tracks them live. Once the frequency moves more than 10 mHz away from 50 Hz, frequency containment reserves start responding automatically across the Continental European synchronous area, and they are fully deployed at a deviation of 200 mHz.
Cross-Border Electricity Flows & Energy Trading
Belgium sits at the heart of the European electricity market, interconnected with France, the Netherlands, Germany, Luxembourg, and the United Kingdom. The Nemo Link subsea cable connects Belgium to the UK with a 1 GW capacity, while the ALEGrO cable provides a direct 1 GW link to Germany. Cross-border flows are driven by price differences between bidding zones — electricity flows naturally from lower-price regions to higher-price regions. Belgium is typically a net importer, relying on imports for 15 to 25 percent of its electricity, primarily from France's nuclear fleet and Dutch gas plants. This dashboard shows each interconnection's real-time flow direction and magnitude in megawatts.
CO2 Carbon Intensity & Environmental Reporting
The carbon intensity indicator estimates the grams of CO2 emitted per kilowatt-hour of electricity generated in Belgium. This calculation uses emission factors for each fuel type — gas-fired plants at approximately 400 g/kWh, while nuclear, wind, solar, and hydro contribute zero direct emissions. When wind and solar generation is high and gas plants ramp down, Belgium's carbon intensity drops significantly. This reporting helps energy-conscious users, researchers, and journalists understand the real-time environmental impact of Belgium's electricity consumption.
32 Live Data Points — Free & No Signup
The sensor matrix displays 32 live data points covering every aspect of Belgium's power system: total grid load, generation by fuel type, wind and solar forecasts versus actuals, monitored capacity, cross-border flows per country, grid frequency, FCR demand, and CO2 intensity. Each sensor card includes a sparkline showing recent trends. The stacked area timeline chart shows the historical generation mix with configurable time windows from 30 minutes to the full available history. This free electricity monitoring tool requires no account, no API key, and no installation — everything runs in your browser. It is one of over 50 free browser-based tools at jasperbernaers.com, built for anyone interested in Belgium's energy transition, grid operations, or power market dynamics.
Fullscreen control room. Press ⛶ FULLSCREEN or F to turn the dashboard into a wallboard for a TV, a second monitor or a wall display. Three animated scenes rotate every 20 seconds: an energy-flow diagram that shows how generation and imports from France, the Netherlands, Germany, the UK and Luxembourg split into consumption and exports; a borders view with moving flows to each neighbour around a ring of the clean-energy share; and a timeline of the generation mix with the day-ahead price bars. Big numbers show generation, grid load, clean share, CO₂, price and frequency. Use the arrow keys to change scene, Space to pause and Esc to leave. The screen stays awake while it is open.
Explore more free tools: all apps · about the creator · Elia Open Data. Data sources: Elia Open Data API and the ENTSO-E Transparency Platform. · Europe power grid live · Nederlandse versie · version française
More about Belgium's electricity grid
What is the electricity price in Belgium right now?
The price panel shows the Belgian day-ahead wholesale price (the EPEX spot / former Belpex price for the Belgian bidding zone) for every quarter hour of today — and tomorrow once the daily auction results are out, usually around 13:00. Prices are in €/MWh; divide by 10 to get c€/kWh. What you pay at home also includes grid fees, taxes and your supplier's margin. With a dynamic tariff, cheap and negative hours are the best moments to charge an EV, run a heat pump or start the dishwasher.
Why does Belgium have negative electricity prices?
Prices turn negative when more electricity is offered than the market can absorb — typically on sunny, windy afternoons and weekends when solar and wind output peak while demand is low. Some plants cannot ramp down quickly or still earn support per MWh, so they keep producing and effectively pay to deliver. Belgium recorded 519 negative-price hours in 2025.
What is the grid frequency and why is 50 Hz important?
The European synchronous grid operates at a nominal frequency of 50.000 Hz. Belgium's TSO Elia continuously balances generation and demand to maintain this frequency. At 49.8 Hz or 50.2 Hz the frequency containment reserve is fully deployed; automatic load shedding only starts if the frequency falls to 49.0 Hz. Frequency deviations as small as 0.01 Hz trigger automatic reserve activation across the ENTSO-E interconnected system.
What is Elia and what does it do?
Elia is Belgium's sole transmission system operator (TSO), managing the high-voltage grid (30 kV to 380 kV) across the country. Elia is responsible for grid stability, frequency control, cross-border electricity flows, and facilitating the energy market. Elia also owns 50Hertz, the TSO for eastern Germany.
What is the role of offshore wind in Belgium's energy mix?
Belgium is a global leader in offshore wind, with wind farms in the North Sea's Belgian Exclusive Economic Zone providing up to 2.26 GW of installed capacity. The wind farms (C-Power, Belwind, Northwind, Norther, Rentel, SeaMade, and others) connect to the mainland via the Modular Offshore Grid (MOG). The Princess Elisabeth Island, under construction, will serve as the world's first artificial energy island, enabling a further 3.5 GW expansion.
How does the nuclear phase-out affect Belgium's power grid?
Nuclear power long supplied roughly half of Belgium's electricity. Five of the seven reactors have now closed permanently: Doel 3 (2022), Tihange 2 (2023), Doel 1 (February 2025), Tihange 1 (September 2025) and Doel 2 (December 2025). The two largest units, Doel 4 and Tihange 3 (about 2 GW together), were refurbished for long-term operation, restarted in 2025 and are licensed to run until 2035. In May 2025 parliament repealed the 2003 phase-out law, opening the door to further extensions. The closed capacity is covered by gas-fired plants, imports from France and the Netherlands, and fast-growing wind and solar.
What are cross-border electricity flows?
Belgium is interconnected with France, Netherlands, Luxembourg, Germany, and the UK (via the Nemo Link subsea cable). Cross-border flows are determined by market price differences — electricity flows from lower-price to higher-price zones. Belgium is typically a net importer, importing 15-25% of its electricity, primarily from France (nuclear) and the Netherlands. The ALEGrO cable (1 GW) connects Belgium directly to Germany.
What is the ENTSO-E Transparency Platform?
The ENTSO-E Transparency Platform is the official source for European electricity data, mandated by EU Regulation 543/2013. It provides real-time and historical data on generation, load, cross-border flows, and balancing for all 36 ENTSO-E member countries. Elia publishes Belgium's data to this platform, which is the primary data source for production implementations of this dashboard.
How does Belgium handle peak demand?
Belgium's peak winter demand reaches approximately 13-14 GW. Elia manages peaks through a combination of strategic reserves (contracted power plants kept in standby), demand response (large industrial consumers reducing load for compensation), cross-border imports, and the Coo-Trois-Ponts pumped-storage plant (just over 1 GW), which can go from standstill to full output within minutes.
What is the Belgian capacity remuneration mechanism (CRM)?
The CRM is a market mechanism introduced to ensure Belgium has sufficient generation capacity after the nuclear phase-out. Power plants, storage, and demand response providers receive payments for guaranteed availability during peak periods, regardless of whether they actually generate electricity. This mechanism triggered the construction of new gas-fired plants such as Engie's 875 MW unit in Flémalle.
Can I embed this dashboard on my own website?
The Embed button in the top bar generates an iframe snippet pointing to ?embed=1, which strips the header, footer and explanations and leaves just the live generation mix, carbon gauge, and key figures — ready to paste into a blog post, internal wiki, or status page.
What does the regional sensor matrix show?
The sensor matrix is a grid of 32 live data points covering total grid load, generation by fuel type, wind and solar forecasts versus actuals, monitored capacity, cross-border flows per country, grid frequency, FCR demand, and CO2 intensity. Each card includes a sparkline of its recent trend, and the timeline chart above it can be switched between 30 minutes, 1 hour, 2 hours, or the full available history.
How is the carbon intensity (g CO2/kWh) calculated?
The dashboard applies emission factors to the live generation mix: nuclear, wind, solar, and hydro count as zero direct emissions, gas-fired plants contribute roughly 400 g/kWh, and other thermal sources roughly 200 g/kWh, weighted by each source's real-time share of total generation. This is why the carbon gauge falls when wind and solar output rises.
How accurate are the wind and solar forecasts shown?
Forecast and actual values come directly from Elia's day-ahead and intraday forecasting models, published alongside each source's monitored capacity. Comparing the forecast and real-time sensor cards side by side shows how closely Elia's predictions track actual weather-driven output as conditions change through the day.
What is FCR demand?
Frequency Containment Reserve (FCR) is automatically activated reserve capacity that responds within seconds to correct small frequency deviations and keep the grid at 50 Hz. Belgium's FCR obligation is coordinated across the Synchronous Area of Continental Europe, and its current demand is one of the sensor matrix data points.
What role do biomass and waste-to-energy play in Belgium's mix?
Biomass and waste-to-energy plants — burning wood pellets, agricultural residue, and municipal waste — provide a smaller but steady baseload contribution. Unlike wind and solar, their output is largely dispatchable and not weather-dependent, which is why they are grouped together with other thermal sources in the generation mix chart.
What is the Modular Offshore Grid (MOG)?
The Modular Offshore Grid is Elia's shared offshore transmission platform in the North Sea. It collects power from Belgium's wind farms and brings it to shore over a small number of shared high-voltage cables, rather than requiring each wind farm to build its own separate connection to the mainland grid.