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HWW Hewelt Wojnowski Lindner i Wspólnicy

Investment in an energy storage facility

We advise investors building a standalone electricity storage facility or a storage facility at a generating source. We prepare the documents indicated below.

This offer is prepared by the team of HWW Hewelt Wojnowski Lindner i Wspólnicy sp.k. The matter is led by Aleksandra Lindner, partner and adwokat (Polish advocate). Telephone: +48 22 100 42 24.

Request a quote +48 22 100 42 24
Fee
from 3 400 EUR net
Prices are net, in EUR. VAT depends on your status and place of establishment.

You can order this service directly, without a prior consultation. We confirm the scope and the fee before we start.

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A consultation is optional. To discuss your matter with a lawyer first, you can book a consultation. If you then order the work, its cost is credited against the project fee.

Before we start, we agree and confirm the scope and the fee. The price is indicative and does not constitute an offer within the meaning of the Polish Civil Code.

What it includes

  • We assess the obligation to obtain a licence from the President of the Energy Regulatory Office (URE) for energy storage. If a licence is required, we prepare the application (Article 32(1)(2)(a) of the Polish Energy Law (Prawo energetyczne)).
  • We prepare an application for connection conditions, determine the advance payment, analyse the conditions and negotiate the connection agreement (Article 7 of the Energy Law).
  • We prepare an application to the President of URE for resolution of a dispute after a refusal to conclude a connection agreement (Article 8(1) and (1a) of the Energy Law).
  • We handle the entry in the register: we prepare the required information, submit it to the operator and notify changes of data (Article 43g(3) to (8) of the Energy Law).
  • We assess the need for an environmental decision and a building permit (Article 71(2) of the EIA Act; Article 28 of the Construction Law).
  • We prepare the storage facility supply and construction contract (EPC): scope, acceptances and settlements with subcontractors (Article 647 and Article 647¹ of the Civil Code). We take into account the investor's obligations relating to the payment security (gwarancja zapłaty) for the contractor's remuneration (Article 649¹ of the Civil Code).
  • We prepare an aggregation agreement or an agreement on the management of the storage facility's operation: the subject matter, settlements, liability and a change of aggregator. For aggregation, the basis is Article 5a¹(1), (3), (8) and (9) of the Energy Law.

What the price does not include

  • Technical design, network expert reports, delivery of equipment and construction works.
  • Obtaining the environmental decision and the building permit; the scope covers the assessment of whether they are needed.
  • Official fees, the fee for the application for connection conditions, advance payments, connection charges, and the required security and the costs of establishing it (Article 7 of the Energy Law).
  • Financing, taxes, disputes with the contractor and court proceedings.

What you receive

  • An assessment of obligations, permits and the schedule.
  • Applications: for a licence, for connection and for resolution of a dispute, depending on needs.
  • Comments on the connection conditions and copies of the information and notifications passed on to the operator.
  • Draft agreements: connection, EPC, aggregation or management, with points for negotiation.

Who this service is for

We advise developers, project companies and owners of generating sources. For plants: energy storage facilities for businesses (in Polish).

Please prepare

  • The location, the company’s details, title to the real property and to the storage facility.
  • The installed, connection, charging and discharging capacity, and the storage capacity.
  • The connection diagram, the links with the generating source or the customer.
  • The operator’s letters with delivery dates.
  • Environmental and construction documentation, agreements, the schedule.

When this service is not enough

Arrangements between participants in a shared connection are described by the cable pooling offer. A separate engagement for the sale of energy is described by the offer for PPA and connection agreements. The connection scope described above is part of the package.

What the fee depends on

  • The number of storage facilities and companies.
  • The manner of connecting the storage facility.
  • The completeness of the documentation.
  • The scope of agreements and negotiations.

The final quotation depends on the client’s factual and legal situation; we present it once we know that situation, before work begins.

To discuss the matter with a lawyer first, you can book a consultation for PLN 600 net + VAT. If you then order the work, its cost is credited against the fee for this project.

The price is indicative and does not constitute an offer within the meaning of the Polish Civil Code.

Questions and answers

Does every storage facility require a licence?

No, the licence covers business activity consisting in storing electricity in storage facilities with a total installed electrical capacity of more than 10 MW (Article 32 of the Energy Law). We base the assessment on the installed capacity, not on the storage capacity.

Does the absence of a licence obligation mean no obligations towards the operator?

No. The entry in the register covers storage facilities with a total installed capacity of more than 50 kW (Article 43g(3) of the Energy Law). The storage facility must be connected to the operator’s network or form part of it. Alternatively, it must belong to a connected generating unit or a final customer’s installation (Article 43g(1) of the Energy Law). The operator enters the storage facility in the register within 14 days of its commissioning or of receipt of the information from the holder (Article 43g(4) of the Energy Law). The holder of a storage facility in such a unit or installation provides the data to the operator. The time limit is 7 days from the commissioning of the storage facility (Article 43g(5) of the Energy Law). It reports changes of data within 14 days of the change (Article 43g(8) of the Energy Law). The schedule divides the tasks of the holder and the operator.

From 31 October 2026, an undertaking storing electricity in a connected storage facility of more than 50 kW cooperates with the operator (Article 9ja(1) of the Energy Law). The holder of such a facility that is not such an undertaking cooperates with the operator as well (Article 9jc of the Energy Law). Each of them provides the operator with structural, real-time and schedule data, implements schedule data and carries out instructions. These obligations do not apply to a storage facility in a micro-installation of a renewable energy prosumer, a collective renewable energy prosumer or a virtual renewable energy prosumer (Articles 9ja(1) and 9jc of the Energy Law). Failure to perform these obligations carries a penalty ranging from PLN 1,000 to PLN 500,000 in total for a calendar quarter (Article 56(1)(19a), 56(3)(3) and 56(3d) of the Energy Law).

How much time is there for the application after a refusal of connection?

The time limit is 6 months from delivery of the information on the refusal to conclude an agreement. This applies to networks with a nominal voltage higher than 1 kV (Article 8(1a) of the Energy Law). Before the application we check the refusal and the proof of delivery.

No, an aggregation agreement does not require the consent of the energy supplier or of an undertaking engaged in its transmission or distribution (Article 5a¹(2) of the Energy Law). We compare the aggregation agreement with the connection agreement and the EPC contract in terms of control of the storage facility, settlements and liability.

  • Act of 10 April 1997, the Energy Law (Prawo energetyczne), consolidated text: Journal of Laws of 2026, items 43, 516, 607, 900, 1347 and 1348.
  • Article 32(1)(2)(a); Article 7; Article 8(1) and (1a); Article 43g(1) and (3) to (8) of the Energy Law.
  • Article 9ja(1); Article 9jc; Article 56(1)(19a), 56(3)(3) and 56(3d) of the Energy Law.
  • Article 5a¹(1), (2), (3), (8) and (9) of the Energy Law.
  • Act of 3 October 2008 on the provision of information on the environment and its protection, public participation in environmental protection and environmental impact assessments.
  • EIA Act, consolidated text: Journal of Laws of 2026, items 670, 875, 1097, 1157; Article 71(2).
  • Act of 7 July 1994, the Construction Law, consolidated text: Journal of Laws of 2026, items 524, 605, 646, 1161 and 1347; Article 28.
  • Act of 23 April 1964, the Civil Code, consolidated text: Journal of Laws of 2026, item 795.
  • Article 647, Article 647¹ and Article 649¹ of the Civil Code.

How to instruct us

  1. Please describe the project in the form or call +48 22 100 42 24.
  2. We will reply by 17:00 on the next working day and indicate the documents needed for the quotation.
  3. Before the engagement we will check for a conflict of interest and confirm the scope, the fee and the order of steps.
Company or private individual?
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How to start

You can order this service directly or book a consultation first. A consultation is not required to order the service.

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