Electricity tariffs in Greece: dynamic prices, two-zone rates and your bill

Can a cheaper hour on the chart reduce your electricity bill? In Greece, first check how your contract prices consumption. A monthly variable price, an hourly dynamic price and a two-zone reduced rate are different arrangements. The same appliance schedule will not produce the same saving under all three.

Four tariff colours, different ways of setting prices

• Blue: a fixed contractual energy price.
• Green: the special tariff, with the month’s price announced by its first day.
• Yellow: variable pricing linked to the wholesale market; check the calculation period.
• Orange: dynamic pricing that changes within the day, requiring a suitable smart meter.

These are pricing categories, not a cheapest-to-most-expensive ranking. Ministry of Environment and Energy: tariff colour definitions.

The green category is not, by itself, a renewable-energy claim. Nor do these labels correspond to the lower-, middle- and higher-price colours on our charts. A fixed energy price does not fix every charge on the bill.

The household phase of the orange-tariff framework began on 1 April 2026. It does not mean every household must switch to dynamic pricing. Ministry: dynamic-tariff rollout.

Hourly retail prices are not quarter-hour chart prices

The EnEx dynamic-contract reference is an hourly average of the market clearing prices within that hour. Its published reference is rounded to two decimals in EUR/MWh. EnEx: dynamic-contract reference price.

For example, four quarter-hour prices of 40, 60, 80 and 100 EUR/MWh average 70 EUR/MWh, or €0.07/kWh. Under an hourly retail formula, choosing the cheapest of those four quarters does not lower that hour’s energy rate. Moving consumption into a different, cheaper hour can.

The PPC and Protergia household dynamic offers below describe hourly pricing. Do not assume that a day with 96 bars on our Greek wholesale chart gives you 96 different retail rates. Ask which reference your supplier uses and how it matches consumption to each hour.

PPC requires a HEDNO smart meter and validated metering data. A digital display alone is not confirmation that your supply is eligible. Ask the supplier to verify your meter, activation date and missing-reading procedure before relying on hourly billing. PPC: myHome Dynamic requirements.

Supplier examples: compare the formula, not just the colour

Checked on 13 September 2026. These household examples explain different contract structures; they are not a ranking or a complete supplier list. Request the current economic conditions for your own supply. Temporary promotions and headline prices are deliberately omitted.

A low markup can be outweighed by a fixed fee in a low-consumption home. Compare the same annual consumption, tax basis and payment assumptions. A discount on one component must not be applied to the whole bill.

Worked example: from hourly references to an energy subtotal

Suppose a household uses 100 kWh during hours with a reference of €0.04/kWh and 150 kWh during hours at €0.12/kWh. The reference cost is €4.00 + €18.00 = €22.00. The consumption-weighted reference is €0.088/kWh, not the simple average of €0.08/kWh.

This fictional monthly example assumes a multiplier of 1.20 on the reference only, a €0.03/kWh markup and a €6.00 monthly fee. These are invented contract inputs, not a supplier quotation or a universal Greek coefficient. VAT and other bill components are excluded.

That is 15.96 ct/kWh before VAT, not an all-in electricity price. The markup has not been multiplied again.

To reproduce it in our calculator, enter consumption 250, market price 0.088, multiplier 1.20, markup 0.03, monthly fee 6 and zero shared costs or shifted consumption. Enter the consumption-weighted reference manually. A simple daily chart average is not your personal average. The calculator does not automatically apply Greek tariff categories, hourly metering, two-zone schedules or conditional discounts. Add applicable costs separately.

Two-zone reduced rates are a separate arrangement

HEDNO’s published two-zone schedule has reduced-rate periods every day:

• November–March: 12:00–15:00 and 02:00–05:00.
• April–October: 11:00–15:00 and 02:00–04:00.

Use the official checker with your supply number to confirm which schedule actually applies to your connection. Do not assume every meter has migrated. HEDNO: check your two-zone schedule.

These hours are not a prediction of the cheapest wholesale periods. Your contract determines the retail rates for the two registers. The older phrase “night rate” can be misleading because the schedule also includes daytime hours. On an orange hourly offer, use its hourly retail formula rather than assuming the two-zone window is automatically cheaper.

Our Greek price pages use Europe/Athens local time. When checking exchange files or bills, match their documented time zone and clock-change treatment; do not compare timestamps using an assumed fixed UTC offset.

Other charges, negative prices and realistic savings

The supplier’s energy charge is only part of a Greek bill. Transmission and distribution, public-service obligations (ΥΚΩ) and ΕΤΜΕΑΡ are separate regulated items. Municipal charges and ERT can also appear, alongside taxes. HERON: electricity bill breakdown.

Use your own supply’s charges and keep VAT-inclusive and VAT-exclusive amounts separate. Ask about the Social Residential Tariff (ΚΟΤ), solar arrangements and any existing benefits before switching; this guide does not establish your eligibility or the tax rate for your circumstances.

In our fictional example, moving 40 kWh from hours at €0.12 to hours at €0.04 changes the energy subtotal by €3.84 before VAT: 40 × (€0.12 − €0.04) × 1.20. The constant markup and monthly fee remain unchanged. Moving between quarters within the same hourly rate changes that component by €0.00.

Even a negative reference need not mean free electricity: −€0.01 × 1.20 + €0.03 = €0.018/kWh, before other charges. Check any floor, cap or special rule in the actual contract. Shifting is worthwhile only when it is practical and safe; essential heating, medical equipment and food safety take priority.

Before switching: a short household checklist

The European Commission’s Greece consumer page links to the regulator’s energycost.gr comparison tool and myRAE complaint service. Use the official comparison alongside a personalized quotation, not our illustrative supplier list as a complete market survey. Official comparison and consumer support.

• Have your latest bill, supply number and annual consumption ready; use hourly readings where available.
• Confirm whether prices change monthly, by register or hourly, and whether your meter qualifies.
• Record the exact reference, coefficient, markup, monthly fee and discount conditions.
• Check the duration, renewal price, deposit, payment requirements and any early-exit costs.
• Compare your current routine first, then realistic shifts; allow for expensive hours and months.
• After activation, check the first bill against the agreed formula and validated readings.

Use our Greek market chart to understand wholesale movements. Use your contract’s retail formula to decide whether moving the dishwasher, water heating or EV charging will actually reduce your bill.