G11 or G12? Electricity tariff calculator for Poland
G12 costs less than G11 once more than about 23-30% of your electricity is used in the cheaper hours: that is the break-even point in the Tauron, PGE, Enea and Energa networks at 2,500 kWh a year. Enter your use and we work out the yearly bill in each tariff, fixed charges included.
Example: PGE, 2,500 kWh a year, 35% in the cheaper zone
Cheapest tariff: G12w, with weekends, about 2,719 PLN a year
about 227 PLN a monthabout 364 PLN a year less than G11
- G12w, with weekends: about 2,719 PLN a year
- G12, day and night: about 2,943 PLN a year
- G11, one zone: about 3,083 PLN a year
When switching pays off
- G12 beats G11 from about 26% of use in the cheaper zone. Now: 35%.
- G12w beats G11 from about 30% of use in the G12w cheaper zone (weekends included). Now, estimated: 54%.
Bar scale: up to 5,000 PLN/yrRates from 11 October 2026, estimate
| Tariff | Average per kWh | Fixed charges | Monthly | Yearly | Difference to G11 |
|---|---|---|---|---|---|
| G12w, with weekends | 0.93 PLN/kWh | 32.39 PLN/mo | 227 PLN | 2,719 PLN | −364 PLN |
| G12, day and night | 1.03 PLN/kWh | 31.59 PLN/mo | 245 PLN | 2,943 PLN | −139 PLN |
| G11, one zone | 1.10 PLN/kWh | 27.90 PLN/mo | 257 PLN | 3,083 PLN | - |
Assumptions and formulaRates from 11 October 2026
yearly cost = Σ (use in zone × zone price) + 12 × (fixed network charge + capacity fee) G12 break-even = (day price - G11 price + 12 × fixed charge difference ÷ use) ÷ (day price - night price)
Yearly bill in each tariff
- G11: 2,500 kWh × 1.0991 + 12 × 27.90 = 3,083 PLN
- G12: 1,625 kWh × 1.2490 + 875 kWh × 0.6111 + 12 × 31.59 = 2,943 PLN
- G12w: 1,161 kWh × 1.2635 + 1,339 kWh × 0.6447 + 12 × 32.39 = 2,719 PLN
Break-even points, your inputs
- G12: (1.2490 - 1.0991 + 12 × 3.69 ÷ 2,500) ÷ (1.2490 - 0.6111) = 26.3%
- G12w: (1.2635 - 1.0991 + 12 × 4.49 ÷ 2,500) ÷ (1.2635 - 0.6447) = 30.1%
Cheaper-zone share in G12w, estimated
35% + (100% - 35%) × 2/7 = 53.6%
Cheaper-zone hours: PGE Dystrybucja
- G12in winter (1 Oct-31 Mar) 13-15 and 22-6, in summer (1 Apr-30 Sep) 15-17 and 22-6, in winter time
- G12won working days as in G12, all day on Saturdays, Sundays and public holidays
- G12w, day zone
- 1.2635 PLN/kWhenergy PGE Obrót + distribution PGE Dystrybucja, gross
- G12w, cheaper (night) zone
- 0.6447 PLN/kWhenergy PGE Obrót + distribution PGE Dystrybucja, gross
- G12, day zone
- 1.2490 PLN/kWhenergy PGE Obrót + distribution PGE Dystrybucja, gross
- G12, cheaper (night) zone
- 0.6111 PLN/kWhenergy PGE Obrót + distribution PGE Dystrybucja, gross
- G11, all day zone
- 1.0991 PLN/kWhenergy PGE Obrót + distribution PGE Dystrybucja, gross
- G12w: fixed charges, single-phase connection
- 32.39 PLN/mofixed network charge + capacity fee
- G12: fixed charges, single-phase connection
- 31.59 PLN/mofixed network charge + capacity fee
- G11: fixed charges, single-phase connection
- 27.90 PLN/mofixed network charge + capacity fee
- Capacity fee at 2,500 kWh a year
- 21.13 PLN/moEnea Operator, gross rates 2026, item 6 (capacity fee)
- Subscription fee
- 0 PLNoperators stopped charging it on 1 October 2026, suppliers have not started yet
- VAT
- 23%, included
- Energy prices
- PGE ObrótURE, Masz Wybór: household offer comparison, 2 October 2026
- Distribution rates and zone hours
- PGE DystrybucjaPGE Dystrybucja, tariff extract from 1 February 2026
An estimate for the 2026 default-supplier tariffs, VAT included. Market offers have other energy prices, and some suppliers add a monthly retail fee.
How electricity, gas, pellet and coal prices have changed, month by month. Price history
How to use the calculator
- Pick the grid operator from your bill: PGE, Tauron, Enea or Energa.
- Enter your yearly electricity use in kWh and choose a single-phase or three-phase connection.
- Set the share of electricity you use in the cheaper G12 hours, or click one of the examples. In the Tauron network, also set the G13 peak shares.
- Click Compare tariffs. The result keeps updating as you change the inputs, and the button under the ranking copies a link to it.
How we work out the bill in each tariff
Each kWh is multiplied by the price of the zone you use it in. The zone price is the energy price from the default supplier's tariff plus the variable network charge, the quality rate and the RES and cogeneration fees, with 23% VAT. On top of that come 12 monthly fixed charges: the fixed network charge and the capacity fee, which depends on yearly use.
Example: a house in the PGE network uses 2,500 kWh a year, e.g. 35% of it in the cheaper zone. It pays about 3,083 PLN a year in G11, about 2,943 PLN in G12 and about 2,719 PLN in G12w. In G12w whole weekends also fall in the cheaper zone, so with these assumptions the saving against G11 is about 364 PLN a year.
What share of night-time use makes G12 worth it
G12 has a higher day price and a lower night price, and in some networks a higher fixed charge too. It pays off once the share of use in the cheaper hours exceeds: (day price - G11 price + 12 × fixed charge difference ÷ yearly use) ÷ (day price - night price).
At 2,500 kWh a year with a single-phase connection the break-even point is about 23% in the Tauron network, about 26% in PGE, about 29% in Enea and about 30% in Energa. In the Energa network the fixed G12 charge is 8.02 PLN a month higher than in G11, so at low usage the threshold rises fastest there: about 39% at 1,000 kWh a year.
What the calculator leaves out
We use the 2026 tariffs of the default suppliers (PGE Obrót, Tauron Sprzedaż, Enea, Energa Obrót) approved by the regulator URE. Market offers have other energy prices, and some suppliers add a monthly retail fee. The tariffs are valid until 31 December 2026. URE has not approved the 2027 rates yet.
We do not add the subscription fee: grid operators stopped charging it on 1 October 2026, and default suppliers will only start after URE approves their amended tariffs. It is the same in every tariff, so it does not change the comparison. G12w is calculated only in the PGE network and G13 only in the Tauron network, because those are the ones with complete energy and distribution rates. For G12w we assume you use as much electricity on a weekend day as on a working day.
Frequently asked questions
Is the G12 tariff worth it?
Yes, if the share of electricity you use in the cheaper hours is above the break-even point for your network. At 2,500 kWh a year it is about 23% in Tauron, about 26% in PGE, about 29% in Enea and about 30% in Energa. If the washing machine, dishwasher and water heater run after 22 (e.g. 35% of use in the cheaper zone), a house in the PGE network pays about 139 PLN a year less in G12 than in G11.
When is electricity cheaper in G12?
In PGE Dystrybucja 13-15 and 22-6 in winter and 15-17 and 22-6 in summer. In Tauron Dystrybucja and Energa-Operator 13-15 and 22-6 all year. In Enea Operator 10 hours a day: 8 consecutive hours between 22 and 7 and 2 consecutive hours between 13 and 17, with the exact hours set by the operator. In G12w whole Saturdays, Sundays and public holidays are cheaper too.
Do I pay a subscription fee in 2026?
Grid operators stopped charging it on 1 October 2026. The default supplier will only start charging it after URE approves its amended tariff. The calculator uses 0 PLN. The fee is the same in every tariff group, so it does not change the comparison.
When is G13 cheaper than G11 and G12?
In 2026 only the Tauron network offers G13. With 20% of use in the morning peak, G13 beats G11 as long as less than about 34% falls in the afternoon peak. Example: 2,500 kWh a year with 20% and 25% in the peaks costs about 2,610 PLN in G13, about 2,669 PLN in G12 (35% at night) and about 2,798 PLN in G11.
How do I find my share of use in the cheaper zone?
The most accurate source is the hourly data in your operator's portal, if you have a smart meter. If you are already on G12, divide the night-zone use on your bill by your total use. Without that, use the examples in the calculator, e.g. 20% without shifting laundry and dishes, or 45% with a heat pump.