Available grid connection capacity in Poland
Public data from PSE, PGE, Tauron, Energa, Enea and Stoen in one place, with a map, voivodeship tables and direct links to operators’ publications. Each operator assigns its own date to its list, and we collect those dates from operators’ publications.
Data provenance, scope and currency
The report aggregates grid operators’ publications and calculates totals for Poland and the voivodeships. It does not predict the outcome of a grid connection application. Before making an investment decision, check the current publication of the relevant operator and obtain connection conditions.
Direct source publications
Dataset update history
31.08.2026: the aggregation was refreshed using operators’ source files. Individual publications may have different dataset dates, which are shown in the operator table.
Method: normalisation of substation and unit names, separation of capacity for generators and consumers, assignment of locations, and aggregation of records. Zeros and missing values remain distinct values. The “Methodology and sources” section describes the limitations in detail.
The source of each data set and the terms on which it may be re-used are described on the page Sources and terms.
Where in Poland is connection capacity available?
The operators report … MW of available generation connection capacity in the distribution networks of five DSOs. Separately, PSE reports … MW in the transmission network. We do not add these figures together. The data covers … substations and points across six operators. Among DSO records with an identified voivodeship, the largest total available capacity for generators is in … (… MW). Records without an identified voivodeship: … DSO records with a total capacity of … MW.
Capacity for generators (the ability to connect generators) and capacity for consumers (the ability to connect demand) are different quantities, so we do not add them together. In this dataset, Enea Operator and Energa-Operator publish capacity for consumers: a total of … MW in … records (substations and county aggregates).
Map of available capacity for generators
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Planning a project in a specific location? The TransakcjeOZE.pl tool shows nearby primary substations (GPZ) with available capacity, the application queue, and filters by operator and voltage. Check your location on the map →How much available capacity is there in each voivodeship?
| Voivodeship | Substations | Total capacity for generators [MW] | Substation with the highest capacity |
|---|---|---|---|
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The table covers the distribution grids of five DSOs. Capacity in the PSE transmission grid is presented separately in the operator table. Low totals in eastern voivodeships are largely due to PGE Dystrybucja’s cautious publication method (low values reported for groups of substations), not an absence of grid infrastructure in those areas. Some operator lists do not specify a voivodeship. We assign only substations with a confirmed location to voivodeships (matched to an actual substation or manually verified); substations with only an approximate location (name geocoding) are shown transparently in the “approximate location, unassigned” row instead of being assigned to a voivodeship without sufficient basis.
How does each operator publish its data?
| Operator | Substations (generators) | Capacity for generators [MW] | Capacity for consumers [MW] | List dated | Source |
|---|---|---|---|---|---|
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PSE publishes data for the extra-high-voltage transmission grid (220/400 kV), while the other operators publish data for their distribution grids; the voltage level in publications differs between operators (details in the methodology). A dash means that the operator does not publish the quantity in the list used. “Declared for” means that the operator labels the list with a future date. Enea Operator updates its lists daily, so values on the operator’s website may differ from the values as at the retrieval date.
Available capacity against the application queue and refusals to issue connection conditions
How to cite the report
For media and analysts: the methodology and direct links to operators’ publications are provided below. Send questions about the data, methodology or use of charts to biuro@fundacjaefet.pl. Before reporting a result, also read the guide on how to interpret available capacity and the connection queue.
Where the data comes from and how we calculate it
Meaning of “available connection capacity”. This is the capacity value published by the operator that, in its assessment, can still be connected at a given electrical substation or group of substations. The value is reduced by capacity covered by issued and valid connection conditions. It does not determine whether a specific project will receive connection conditions. That requires a separate application and operator assessment.
Legal basis for publication. Distribution system operators and the transmission system operator publish information on available connection capacity pursuant to Article 7(8l) of the Energy Law and update it at least quarterly. The report aggregates these public lists into one dataset.
Methodological differences between operators. Each operator publishes its list in its own format: granularity (individual primary substation (GPZ), group of substations, area), publication form (web table, file, interactive report), scope (some operators publish capacity for generators only), and dataset dates differ. The voltage level also differs: according to source notes, Enea Operator publishes values for the medium-voltage (SN) grid per primary substation (GPZ), Stoen Operator for the 110 kV grid, and PSE for the 220/400 kV transmission grid; the source list below provides operator-specific details. Some operators (e.g. TAURON and PGE) provide values for groups of substations, in which case one dataset entry represents several physical primary substations (GPZ). We present values without conversion, so comparisons between operators should be treated as indicative. Some substation locations are approximate (automatic geocoding).
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Sources, licences and disclaimers
Voivodeship boundaries: polska-geojson, © 2019 Piotr Patrzyk (MIT licence); source boundary data: GUGiK (PRG). Basemap and map data: © OpenStreetMap contributors (ODbL licence). Energy Regulatory Office (URE) data is used in excerpts (aggregate figures from the President of the Energy Regulatory Office (URE)’s 2025 Report), in processed form; retrieved 11.07.2026. Informational material. It does not replace examination of connection conditions or legal analysis.
Frequently asked questions about available connection capacity
Where in Poland is the greatest amount of available connection capacity?
According to operators’ current publications, the highest total available capacity for generators in the distribution grid among records with an identified voivodeship is in … (… MW). The table above ranks assigned records and lists records without an identified voivodeship separately. The ranking does not establish which voivodeship would have the most capacity if all missing assignments were resolved.
What does “available connection capacity” mean?
This is the capacity that, according to the grid operator’s publication, can still be connected at a given substation or group of substations. It is reduced by capacity covered by issued and valid connection conditions. It does not determine whether a specific project will receive connection conditions. That requires a separate application and operator assessment.
How does data from distribution system operators (DSOs) differ from PSE data?
Five distribution operators (PGE, TAURON, Energa, Enea and Stoen) publish capacity for their distribution grids, to which most renewable energy projects connect; the voltage level in publications differs between operators (for example, Enea reports values for the medium-voltage (SN) grid per primary substation (GPZ), while Stoen reports values for the 110 kV grid). PSE publishes capacity for the 220 and 400 kV extra-high-voltage transmission grid, which is relevant to the largest installations. The report presents these values separately and does not add them together.
How often is the report updated?
We update the report quarterly, in line with operators’ publication cycles. Operators have a statutory duty to update the lists at least quarterly (Article 7(8l) of the Energy Law). We provide the dataset date and source for every value.
Why do we not add capacity for generators and consumers into one figure?
Capacity for generators describes the ability to connect generation (e.g. solar PV and wind farms), while capacity for consumers describes the ability to connect demand (e.g. industrial plants). These are two different quantities and adding them together has no technical meaning, so the report presents them separately.
Does the report also cover energy storage?
The lists published by operators concern available connection capacity for generators. Energy storage and hybrid-project investors use them as a reference when selecting locations because storage that exports energy to the grid competes for the same grid capacity as generating sources. The operator specifies the connection rules for a specific storage facility in the connection conditions, and the report does not replace that verification.
May I cite data from the report?
Yes. The report is free and may be cited using: “Source: Fundacja EFET / TransakcjeOZE.pl, Available Connection Capacity in Poland Report, July 2026”. The source data comes from grid operators’ publications under Article 7(8l) of the Energy Law.