Billing self-consumption: calculate solar and grid power cleanly separated
In a self-consumption community, the correct split is what counts: self-consumed solar power at one price, the remaining grid power at another. SchäferStrom separates the two traceably.
The term self-consumption describes the share of solar power that is consumed directly where it is generated – instead of flowing into the grid. In a self-consumption community – the self-consumption association (ZEV) – several parties share this power. The billing therefore has to keep two power sources cleanly apart.
This is the decisive point: a capped price applies to the self-consumed solar power (max. 80% of the external standard product, Art. 16b para. 2 EnV), whereas the remaining power drawn from the grid is charged at the actual cost (Art. 16a EnV). Anyone who mixes the two bills incorrectly.
Done by hand, this is error-prone: for each unit, the allocated solar kWh have to be separated from the grid consumption, the right tariff applied and both shares shown separately. You enter the allocated solar kWh, and SchäferStrom takes on the rest – tariff separation, calculation and the record – without Excel.
How to calculate and separate self-consumption
Enter the meter readings
You enter the consumption meters of all units and the solar installation’s generation meter by hand – the basis of every correct bill.
Allocate the solar share per unit
You enter the solar kWh allocated to each unit. The split comes from your ZEV or vZEV – for example from the smart-meter load profiles – SchäferStrom does not work it out itself.
Apply two tariffs
The solar share is billed at the capped solar tariff, the remaining grid power separately at the actual cost – shown separately and transparently.
Create the bill as a record
Each party gets a bill with a Swiss QR payment section that lists the solar and grid share individually – a clean record for accounting and audits.
Why the separation works with SchäferStrom
For everyone who wants to bill correctly and traceably within a self-consumption community.
- A clean split of solar and grid power in every bill
- From the allocated solar kWh, SchäferStrom separates the solar and grid share automatically – no working it out by hand
- Two tariffs applied correctly: the capped solar tariff and the remaining grid power at actual cost
- A built-in 80% check warns of an excessive solar tariff – the responsibility stays with you
- A traceable breakdown per party, transparent for every tenant
- A PDF bill per party – a clean record for accounting and audits
Frequently asked questions about billing self-consumption
How are the solar and grid share separated per party?
You provide the solar kWh allocated to each unit; SchäferStrom bills them at the solar tariff and deducts them from the grid consumption, so that each party ends up with a solar and a grid share. How the solar kWh per unit are determined is shown on our PV billing page.
Why do solar and grid power have to be billed separately?
Because different pricing rules apply: the self-consumed solar power is capped at 80% of the external standard product (Art. 16b para. 2 EnV), while the remaining grid power is passed on at the actual cost (Art. 16a EnV). Mixing the two would not be correct.
What is a self-consumption community?
It is the common term for the self-consumption association (ZEV): several parties who jointly use the solar power generated on site and bill it internally. How ZEV, vZEV and LEG differ is explained in our knowledge hub; whether selling locally pays off economically is shown on our tenant electricity billing page.
What happens if more is consumed than is generated?
Then the allocated solar kWh cover only part of the consumption; the rest is drawn from the grid and billed separately. SchäferStrom sets out exactly this split cleanly for you – even when generation and consumption shift from month to month.
Does the 80% maximum price apply to total consumption?
No. The 80% limit affects only the self-generated solar power. The share drawn from the grid is not capped and is billed at the actual external cost.
Is the bill suitable as a record for accounting?
Yes. Each party gets a PDF bill with a Swiss QR payment section that shows the solar and grid share separately – traceable as a record for accounting and audits. You download all the bills bundled as a ZIP. How the necessary meters are set up is shown on our PV billing page.
Related topics
Bill self-consumption cleanly – without Excel
Let SchäferStrom separate solar and grid power automatically and create a traceable bill with a QR payment section for every party. You check the permissible solar tariff in advance in the calculator – control over the tariff stays with you.