TransakcjeOZE.pl
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Check a company and its installations, licences and permits

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Full access unlocks company check results, capacities, licence deadlines and capacity obligations. Figures marked with dots stay hidden until access is active.

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Companies

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Have a tax ID? Structure the first renewable company screening.

  1. Tax ID and name match
  2. Concession dates and installations
  3. Capacity market units
Check a company
What is free and what is paid
Free: what is where, meaning names, localities, technologies and entry dates. Paid: what follows for one site, one company and one unit, meaning the check result, capacities, totals and deadlines. The number of entries in each register is free, and the dots “•••” mark a value available with full access.
What the map shows
Localities of MIOZE entries, registered offices from generation licences and localities of building permits of the companies in this selection. The number in a circle is the number of such entries in the area; zooming in splits them into localities. Clicking a point shows the companies in that locality, the first eight in large cities.
Frequently asked questions
What will I find in this search?

One field serves five data sets: the licence register of the President of URE, the MIOZE register of small installation generators, building permits from the GUNB register, capacity market auction results and company profiles from the KRS. Enter a company name, its NIP number or a locality, and you will get a list of companies with the number of entries in each data set and a card for each company with its licences, MIOZE installations, capacity market entries and KRS data.

How does this search differ from the registers and lists of the President of URE?

The President of URE keeps the licence register and the MIOZE register of generators separately, and this search brings entries from both together in a single company card. Alongside them, the card shows building permits from GUNB, capacity market positions, KRS data and the status from the VAT taxpayer list. The registers of the President of URE remain the source of entries on licences and installations, and the as-at date of each data set is given in the “Sources and disclaimers” dropdown at the bottom of the card.

Are expired or revoked licences included here?

As a rule no. The open data set of the President of URE reflects licences current as at the retrieval date, and between retrievals the term of some entries expires, so individual licences past their term do appear in the set until the next refresh. The validity filter narrows to licences whose term ends in the coming months. A licence revoked by a non-final decision stays in the set until the decision becomes final; the revocation annotation is shown together with the expiry date in full access. The full history of an entry is established only by licensing due diligence.

What does no result for a NIP number mean?

Only that the retrieved data sets contain no entry with that number. This does not settle the absence of an authorisation: the entity may have operated under a different number, the entry may have been created after the data set was retrieved, and some activities require no licence at all. The status is confirmed by the register search of the President of URE.

How does a licence differ from a MIOZE entry?

A licence from the President of URE concerns a type of activity: generation, trading, distribution, transmission or storage, and it has an expiry date. An entry in the MIOZE generator register concerns a specific small installation: it has a capacity, a technology and a locality. One company may be in both registers at once, and the company card shows this side by side.

Where can I check a company's capacity market positions?

On the company card. It holds the positions from the most recent main auction and from earlier auctions, each with the delivery year, the auction type and the length of the capacity agreement. The full list of all units is kept in the search tool Check generating units and the capacity market.

Is a result from this search a legal opinion?

No. The page organises public data and shows what they contain as at the retrieval date. An assessment of the status, scope and continuity of an authorisation is carried out by HWW Hewelt Wojnowski Lindner i Wspólnicy sp.k. as the platform's legal adviser, under a separate engagement.

Density of MIOZE installations by voivodeship
Sources, scope and reservations
  • The registry confirms licences current in the URE database and MIOZE register entries, without the full history of entries; a licence revoked by a non-final decision stays in the set until the decision becomes final, and the revocation annotation is shown in full access. The final status and continuity of entitlement are established through licence due diligence.**
  • No result means no entry in the currently downloaded dataset. The search does not replace confirmation at source or counterparty due diligence.
  • Companies found by name or number come from National Court Register data, supplemented with entries from energy registers. The source and date of the register data on the company card are given in the “Sources and disclaimers” dropdown.
  • Building permits come from the GUNB Register of Applications, Decisions and Notifications (CC0 licence): first-instance decisions from 2016 for solar PV, wind, biogas and energy storage. The register does not give the NIP number, so we link a permit to a company by the number from the KRS when the investor's name points to a single entity, and by name otherwise; some companies known only from permits have no number. We do not show natural persons. A permit does not mean that the project is for sale.
  • Source: open data from the President of URE (api.ure.gov.pl, dane.gov.pl). Reuse of public sector information in accordance with the Act of 11 August 2021 on open data and reuse of public sector information.

The search tool combines two public datasets of the President of the Energy Regulatory Office (URE) with capacity market auction results and building permits from the GUNB register. A result confirms that a record is present in the downloaded dataset, but does not replace verification of the current status, scope or continuity of the entitlement in due diligence.

CompilationEFET Foundation
Scope… licences and … installations in the MIOZE register

We retrieved the datasets no earlier than and have not changed them since.

Direct source publications
Compilation update history

10.11.2026: the current records of both public URE data sets were retrieved and processed. The register does not hold the full history of revoked licences or all changes to entries.

Update of 10.08.2026: current records from both public URE datasets were downloaded and processed. The registry does not retain the full history of revoked licences or all changes to entries.

Method: data retrieved from the URE API, followed by standardisation of entity names, identification numbers, licence scopes and locations, and preparation of a search index. The absence of a result does not establish that no entitlement exists.

The source of each data set and the terms on which it may be re-used are described on the page Sources and terms.

County index

Index of counties in the RES registry

Select a county to open its public overview.

All counties