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be_elia_hosting_capacity

Elia Grid Hosting Capacity map (griddata.elia.be, v2)

Published by Elia Transmission Belgium / BE / Monthly

Grantedcommercial_use_with_attributionHealthy

Remaining available hosting capacity per Elia substation node (site × voltage level, 30 to 380 kV), per published target year, for five connection profiles (Load, Prod, PV, Wind, Battery) and four flexibility levels (0, 5, 10, 20 % maximum yearly energy curtailment), in MW.

Elia Grid Hosting Capacity map (griddata.elia.be, v2) on a map

The 326 located assets in this publication, coloured by the spare capacity Elia Transmission Belgium publishes for each today. Click a point for its figure.

The map of Europe →

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What is withheld, and why

Nothing is withheld. Values are served with the attribution the licence asks for: Source: Elia Transmission Belgium SA, Grid Hosting Capacity Map. Keep it with any figure you show.

Switched to commercial_use_with_attribution on 2026-10-02 on the owner's report that the operator gave permission by telephone. No written confirmation is on file: ask for one, and an objection from the operator means rights_override = blocked the same day. The evidence below is the operator's published terms as read before the call. Before: Fail closed: archived, never served. The data is not on opendata.elia.be (where the Elia Open Data Licence, CC BY 4.0, applies) and carries no licence of its own; the elia.be website terms limit use to personal use and forbid reproduction or distribution without prior written permission. The official XLSX export of the same data carries a Microsoft Purview label 'ELIARestricted' applied manually (Method=Privileged) on 2026-09-15. Ask hostingcapacitymap@elia.be and opendata@elia.be for written permission or for publication on the open-data portal; the attribution above is the one proposed if they agree.

Licence and rights evidence

Attribution
Source: Elia Transmission Belgium SA, Grid Hosting Capacity Maprequired
Technical access
Yes
Commercial use
Yes
May be cached
Yes
May be redistributed
Yes
Derived data allowed
Yes

Evidence

Methodology

1 version(s)

Elia Grid Hosting Capacity: remaining available capacity per node, profile and flexibility level

be_elia_hcm_v2 · vhostingcapacitymap v2, target years 2027 and 2031 (reference context: Adequacy & Flexibility study and FDP 2024-2034)

Elia computes, per node and target year, how many additional MW of consumption or production at one location at a time could be hosted without additional grid investments, on top of the reference operating state (reserved and allocated capacity treated identically, pre-reservations included except those of the same technology, pending reservations included for large batteries only, and a low-voltage margin). N and N-1 per SOGL over 100 representative situations with a PTDF linearisation, capped per voltage level. Not considered: voltage limits, short-circuit current, bay constraints, dynamic topologies, redispatch, PST taps, and DSO constraints on MV connections.

Capacity basis
operator calculated
Network state
n and n minus 1
Binding
No
Additive across assets
No. Do not sum these figures.
The method accounts for
reserved: yes · allocated: yes · pre-reserved: yes · pending requests: not stated
Comparability class
be_elia_hcm_v2

The operator’s own caveats

  • 'Validity: all information shown is non-binding.'
  • An approximation of the hosting capacity 'for nominal capacities < 300 MW'.
  • Values are not cumulative across nodes: they hold for one location at a time.
  • 'A maximum capacity per voltage level is considered' to ensure a harmonious development of the transmission system.

How the publication maps to the model

availability types
["available"]
binding
false
directions
["offtake","injection","bidirectional"]
firmness
["firm","flexible"]
geometry precision
exact
includes reserved projects
true
non additive
true
notes
["One asset per Elia site (the mnemonic, e.g. AALST, shared with ods121 as the identifier elia_site); its voltage-level nodes (AALST 70) are series variants '<kV>kv'. All nodes of a site share one WGS84 point. Points published with fewer than four decimals (the future energy-island nodes at [2.49, 51.53]) are 'approximate'.","Profiles: Load → offtake / generic_load; Prod → injection / generic_generation; PV → injection / solar_pv; Wind → injection / wind_onshore (Elia's 'onshore wind' profile); Battery → bidirectional / battery (flat offtake and injection combined). Only 'available' (remaining) capacity is published per node; reserved and allocated volumes appear only as national totals on the elia.be page and are never emitted from here.","Flexibility: 0%_flex → firm, curtailment 0; 5/10/20%_flex → flexible with curtailment_max_pct 5/10/20, the share of expected yearly energy that may be curtailed (an energy share, not a power cap).","Horizons are the menu's target years, literally (2027 and 2031 on 2026-09-26), never computed as 'Y+2'. The node set differs between horizons (70 and 36 kV points being replaced); a node missing from a year is not 0 MW there. When the menu rolls to new years (a new annual study) the methodology changes: bump this manifest's methodology.","Values sitting on Elia's per-voltage-level ceilings (30/36 kV: 20, 60; 70 kV: 50, 60; 150 kV: 175, 300; 220 kV: 175; 380 kV: 300) are flagged details.at_voltage_level_cap; the value is then a policy cap, 'at least this much', not a computed headroom. A value equal to the widget's 300 MW scale maximum is flagged details.at_published_maximum_mw.","'unavailable' nodes (e.g. '70 kV connection point to be replaced by MV.') carry 0.0 everywhere; the flag and Elia's disclaimer travel in details, because that zero means 'not offered', not 'congested'.","HEREN and SART are listed twice per year with identical nodes and are deduplicated on the node code. flexibilityDetail.congestion is always null so far; it is kept in details when it is not."]
spatial scope
substation
technologies
["generic_load","generic_generation","solar_pv","wind_onshore","battery"]
units
["MW"]

Query this source

curl "https://api.gridcapacityapi.com/v1/capacity/search?source=be_elia_hosting_capacity&limit=20" \  -H "Authorization: Bearer gc_live_..."