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REWS

Energy Storage

Last updated Oct 8, 2025

1.1 Applications for Notification of an Energy Storage Facility

Any Energy Storage Facility must comply with the Electricity Regulations (S.L.545.34)    which Regulations require that an Energy Storage Facility is to be notified to the Regulator for Energy and Water Services.
Any person that 

  • Installs  an Energy Storage Facility
  • Makes changes to an existing Energy Storage facility
  • Transfers the ownership and/or operation of an Energy Storage Facility
  • Decommissions  an existing Energy Storage facility 
  • Relocates an existing Energy Storage Facility 

is required to notify in writing the Regulator for Energy and Water Services 
Prospective applicants intending to notify the Regulator of Energy and Water Services with a new Energy Storage Facility  or effect changes including transfer of ownership /relocation/decommissioning of an existing facility   are invited to refer to the Notification guidelines and flow chart

Application Forms:

Energy Storage  Notification  form v3

2: Legal References

Electricity Regulations (S.L.545.34)

3: Means of Authentication, Identification and Signature

  • Details/number of the Identity card or passport or company registration number and/or the VAT number of the applicant as applicable.
  • Details of the Identity card or passport or company registration number and/or the VAT number of the previous owner as applicable in case of a transfer.
  • Details of the Identity card or passport number or company registration number and/or the VAT number of the new owner as applicable in case of a transfer.
  • Handwritten signature of the applicant (or all legal representatives in the case of a Company/Partnership) required on the application form.
  • Handwritten signature of the previous owner/previous licensee (or all legal representatives in the case of a Company/Partnership) on the application form in case of a transfer.
  • Handwritten signature of the new owner/new licensee (or all legal representatives in the case of a Company/Partnership) on the application form in case of a transfer.

4: Type of Evidence to be Submitted

  • Copy/ Copies of the identity card/s or passport/s of the applicant or the Legal Representative/s in the case of a company / Legal Organisation.
  • In the case that the applicant is:
    • a company, a copy of the official Memorandum of Articles of Association for such company is required to be submitted;
    • an organisation, a copy of a Statute in the case of an organisation identifying the President and the Secretary e.g. a Band Club is required to be submitted;
    • a sole trader a copy of the VAT certificate is required to be submitted.
  • In case the energy storage facility is installed on a third-party property, a copy of the identity card or passport of the site owner or occupier or the Legal Representative in the case of a company / Legal Organisation of the site owner or occupier, and this latter case a Memorandum of Articles of Association for a company or a copy of the Statute for an organisation indicating the President and the Secretary.
  • Technical details of Energy Storage facility and signed declaration by a warranted electrical engineer 
  • Declaration for use of the site for the installation of Energy Storage Facility to be signed by the owner and/or occupier of the installation site.
  • A copy of the ARMS Ltd electricity bill in the applicant’s name where the Energy Storage Facility will be installed and connected. (not applicable in the case of an off-grid, stand-alone system 2(ii)(d)).
  • A “No Objection” letter from Enemalta Plc – Distribution Department in the case that with the new inverter(s) the AC capacity will exceed 16Amps on any of the electrical phases [ Section C 6(ii) or 6(iv)].
  • Photos endorsed by a warranted electrical engineer indicating the tally plates of the battery storage modules.
  • Photos endorsed by a warranted electrical engineer indicating the tally plates of the inverter(s) 
  • A copy of the agreement with the DSO -Section C item 9 (if applicable) 

Request for transfer of ownership:

  • In the case that the new owner is:
    • a company, a copy of the official Memorandum of Articles of Association for such company is required to be submitted;
    • an organisation, a copy of a Statute in the case of an organisation identifying the President and the Secretary e.g. a Band Club is required to be submitted;
    • a sole trader a copy of the VAT certificate is required to be submitted.

5: Applicable Fees

No application fee applies. 

6: Penalties and Offences

Regulation 59(1) of the Electricity Regulations (S.L.545.34) establishes that any person who contravenes any of the provisions of the Electricity Regulations or of a licence condition or of an authorisation or approval issued thereunder, shall be guilty of an offence, and shall, on conviction, be liable to a fine (multa) of not more than sixty-nine thousand euro (€69,000) or for one thousand and three hundred euro (€1,300) for each day during which the offence persists.

Regulation 59(2) of the Electricity Regulations (S.L.545.34) establishes that a person who, when information is requested or required by the Regulator, knowingly or negligently –

  • gives any false, inaccurate or misleading information; or
  • supplies incomplete information; or
  • fails, without reasonable cause, to supply information requested within the time given; or
  • prevents or hinders any investigation; or
  • produces or furnishes, or causes or knowingly allows to be produced or furnished, any document or information which he knows to be false in any material respect,

shall be guilty of an offence. and shall, on conviction, be liable to a fine (multa) of not less than one thousand euro (€1,000) and of not more than sixty thousand euro (€60,000) for each day during which the failure to comply subsists.
 
Regulation 59(3) of the Electricity Regulations (S.L.545.34) establishes that where any person fails to comply with the provisions of the regulations or of a licence or authorisation condition for a period not exceeding three months, the Regulator may revoke such licence or authorisation.
 
Regulation 60(1) and 60 (2) of the Electricity Regulations (S.L.545.34)  establish that the Regulator may impose an administrative fine upon any person who infringes any provision of the regulations or who fails to comply with any directive or decision given by the Regulator in ensuring compliance with these regulations and such fine:

  • shall not exceed one hundred thousand euro (€100,000) for each contravention and, or six hundred euro (€600) for each day of noncompliance, from the date of the decision given by the Regulator; and
  • in the case of an undertaking (including a vertically integrated undertaking) or a body corporate, up to 10%   of the total turnover concerned in the preceding business year. Provided that in the case of an undertaking, including a vertically integrated undertaking or a body corporate, a fine of up to 10% of the annual turnover concerned in the preceding business year, even if such fine results in an amount that  exceeds the one hundred thousand euro (€100,000) threshold, may, in any such case be imposed.

7: Deadlines or Indicative Time that the Regulator Requires to Complete the Procedure

  • No specific period for completion of the procedure is established at law.
  • Generally, applications are processed within 10 days provided that no clarifications and/or site inspection are required.

8: Rules on Lack of Reply from the Regulator and Legal Consequences

In general, the Maltese Administrative Law establishes that in the absence of a reply this is construed to be tantamount to a refusal and the applicant has a right to appeal.

9: Means of Redress or Appeal

Any decision taken by the Regulator, including refusal of an application for or withdrawal of an authorisation or a licence, may be subject to appeal before the Administrative Review Tribunal established by Article 5 of the Administrative Justice Act.

10: Competent Authority

You may submit the application form together with all associated documentation and relevant payments referred to in the application form either by post or by hand to:  
Regulator for Energy and Water Services,
Zentrum Business Centre, Level 1,
Mdina Road,
Qormi, QRM 9010,