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RiverMath

G11 vs G12

Pick a DSO (PGE, Tauron, Enea, Energa or STOEN) — the calculator fills 2025 net distribution rates. Enter yearly grid use, an estimated G12 peak share (Mon–Fri roughly 7–13 and 16–21) and energy prices from your seller. It compares a full year: energy, distribution, quality/RES/cogeneration fees, a simplified capacity charge, the fixed DSO fee and a typical seller subscription. VAT and net-billing are not included.

Your distribution system operator (DSO) — the calculator fills 2025 net distribution rates for that operator.
Your distribution system operator (DSO) — the calculator fills 2025 net distribution rates for that operator.
A three-phase connection has a higher monthly DSO fixed charge than single-phase.
A three-phase connection has a higher monthly DSO fixed charge than single-phase.
How many kilowatt-hours you draw from the grid per year.
How many kilowatt-hours you draw from the grid per year.
kWh
What share of yearly use falls in G12 peak hours (Mon–Fri roughly 7–13 and 16–21).
What share of yearly use falls in G12 peak hours (Mon–Fri roughly 7–13 and 16–21).
%
Energy price from your seller on G11 — not DSO distribution.
Energy price from your seller on G11 — not DSO distribution.
zł/kWh
Seller energy price in G12 peak hours.
Seller energy price in G12 peak hours.
zł/kWh
Lower seller energy price in G12 off-peak hours.
Lower seller energy price in G12 off-peak hours.
zł/kWh
G12: peak hours and use split
01224peak Mon–Frioff-peakG11all use at one rateG12peak 1,800off 2,200

G11 — single rate

Yearly net
4,822 zł
Seller energy
2,480 zł
DSO distribution
1,707 zł
Quality, RES and cogeneration
186 zł
Capacity charge (estimate)
302 zł
DSO fixed charge
81 zł
Seller subscription
66 zł

G12 — peak and off-peak

Yearly net
3,672 zł
Seller energy
1,940 zł
DSO distribution
1,096 zł
Quality, RES and cogeneration
186 zł
Capacity charge (estimate)
302 zł
DSO fixed charge
81 zł
Seller subscription
66 zł
Peak use
1,800 kWh
Off-peak use
2,200 kWh

G12 comes out cheaper — saving about 1,151 zł/year

Distribution rates are 2025 net figures from DSO tariffs — your gmina may differ. The capacity charge is simplified from yearly use. VAT (23%) is not added. Check your seller’s offer before switching tariff.

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An educational estimate. Not medical, tax or credit advice.

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