Students enrolled in Higher Education Institutions (HEIs), Public or Private Vocational Training Institutes (IEKs), Military Academies, or Colleges may join Protergia Student Plan, subject to the program’s terms and conditions. For students attending Greek Higher Education Institutions, eligible participants include undergraduate, postgraduate, and PhD students, provided they are within the standard duration of studies for the educational program in which they are enrolled.

To verify your student status when signing the contract, you will need to provide one (1) of the following documents:

• A valid student ID card
• Certificate of studies or enrollment certificate
• Nationwide University Entrance Examination success certificate, if you are a first-year student
• Certificate of attendance issued by the relevant educational institution

Unfortunately, no. Student status can only be used once and exclusively for one (1) electricity supply point.

Yes. The parent/legal guardian must provide a consent declaration authorizing the transfer of the student status verification document. The declaration can be found here.

A parent/legal guardian may also sign more than one contract, provided they can document the student status of each eligible family member.

Student Consumption refers to electricity consumption of up to 115 kWh per calendar month. The 115 kWh threshold represents an indicative monthly consumption level, calculated to cover a significant portion of the basic daily electricity needs of a student household.

If the billing period is shorter than 30 days, the 115 kWh threshold is adjusted proportionally according to the number of days in the billing period.

If your monthly consumption exceeds 115 kWh, your service will continue without interruption. Any additional kilowatt-hours will be charged according to the terms and pricing of your selected plan, without requiring any further action on your part.

After your Protergia Home Student Plan supply is activated, log in to the protergiaApp to find your unique code for a 25% discount with SKY express. Important: Your discount code will appear in the ProtergiaApp a few days after your electricity supply has been activated or your tariff change.

If you do not yet have a protergiaApp account, you can easily create one by selecting “Register” and providing the required information, such as your Supply Number, Tax Identification Number (TIN), and email address.

Once logged in, you will find your code under the “Sky Express 25% Voucher” section, along with instructions on how to use it. If you do not have access to protergiaApp, you may contact 18311 to receive your code.

Next, visit the SKY express website and enter the code in the “discount coupon” field during your booking process. The 25% discount is applied in accordance with the promotion’s terms and conditions, which you can view here.

The code may be used for up to two (2) separate airline ticket purchases. Each purchase may be for a one-way or round-trip flight, either domestic or international.

The 25% discount applies to available SKY Joy, SKY Joy+, and SKY Enjoy fares, subject to the promotion’s terms and conditions.

The code may be used for bookings made between 01/09/2026 and 31/12/2026.

Bookings may be for eligible flights operating between 15/09/2026 and 31/05/2027, excluding specific periods and flights detailed in the promotion’s terms and conditions.

Important: The discount is not valid for flights operating:

• From 15/12/2026 to 10/01/2027
• From 12/03/2027 to 16/03/2027
• From 24/03/2027 to 29/03/2027
• From 23/04/2027 to 09/05/2027

In addition, Public Service Obligation (PSO) flights booked with the Basic fare are excluded.

Not necessarily. The code may also be used by another individual of your choice, and this person may be different for each purchase.

No. The discount code cannot be combined with any other SKY express promotions, discounts, or benefits.

In the event of a booking change, the applicable terms and any charges associated with your selected fare will apply, in accordance with SKY express policy.

No, not for the same supply point. The promotional benefit is granted once (1) per electricity supply point. Therefore, a new code will not be issued for the same supply point in the event of a renewal, modification, or new contract under the Protergia Home Student Plan.

For information regarding the receipt and use of the code, you may contact Protergia at 18311.

For matters related to bookings, flights, available fares, or SKY express policies, you may contact SKY express directly and indicate that you are a “Protergia Student Plan customer.”