📘 Complete Guide · Switzerland 2026

ZEV Switzerland 2026:
Self-Consumption Group
Explained

What is a ZEV, what does it cost, who can join — and when is an LEG the better option? The complete guide for building owners, landlords and tenants. With interactive savings calculator and decision tool.

Rafael RomanMay 20268 min read

What is a ZEV? A clear definition

A Zusammenschluss zum Eigenverbrauch (ZEV — self-consumption group) is a legal arrangement in which multiple consumption units within a building or property jointly operate a solar system and distribute its electricity internally.

The key features:

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One external grid connection: The ZEV is treated as a single customer by the grid operator. Each unit has its own sub-meter internally.

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Solar first internally, then to the grid: Produced electricity is consumed within the building first. Surplus is fed into the public grid and compensated.

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No grid fee on internal consumption: Solar electricity used internally incurs no grid charges — this is the core economic advantage.

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Legal basis: Energy Act (EnG) Art. 14–17, Energy Ordinance (EnV) Art. 14 ff. The updated version under the omnibus energy law applies from 1 January 2026.

📘 Complete Guide · Switzerland 2026

ZEV Switzerland 2026:
Self-Consumption Group
Explained

Rafael RomanMay 20268 min read

What is a ZEV? A clear definition

The key features:

→

One external grid connection: The ZEV is treated as a single customer by the grid operator. Each unit has its own sub-meter internally.

→

Solar first internally, then to the grid: Produced electricity is consumed within the building first. Surplus is fed into the public grid and compensated.

→

No grid fee on internal consumption: Solar electricity used internally incurs no grid charges — this is the core economic advantage.

→

Legal basis: Energy Act (EnG) Art. 14–17, Energy Ordinance (EnV) Art. 14 ff. The updated version under the omnibus energy law applies from 1 January 2026.

Requirement	Detail
PV system present or planned	No ZEV without solar — self-consumption requires own production
Multiple units on one connection	At least 2 consumption units in the same building or contiguous property
Same grid connection	All ZEV members behind a shared house connection
Owner consent	For co-ownership (STWEG): decision by the owners' meeting required
Sub-meter per unit	Each residential unit needs its own sub-meter (recommended: smart meter)

Item	Typical cost in Switzerland
Sub-meter per unit (smart meter)	CHF 200–500 per unit
Electrician / cabling (if needed)	CHF 500–2,000 (building-dependent)
Consultation / design	CHF 500–1,500 (one-off)
PV system (if not yet installed)	CHF 1,200–1,700/kWp (incl. installation, Swissolar 2026)

Item	Cost per year
Billing admin (self-managed)	10–20 hours
Billing service provider (e.g. Upgrid)	CHF 200–600/year (building-dependent)
PV system maintenance	CHF 100–300/year

Criterion	ZEV	LEG
Who can participate	Residents of your building only	Any household or business in your municipality
What you earn per kWh	~19 Rp. (internal tariff)	~15 Rp. — but on a much larger buyer pool
What happens to surplus	Feed-in at ~8.5 Rp./kWh	Sold locally at ~15 Rp./kWh (55% absorbed)
PV system required	Yes — you must own one	Yes — but consumers can join without panels
Owner agreement needed	Yes — all co-owners must vote yes	No — individual units join independently
Grid discount for members	No — internal only, no grid fee saving	Yes — 20–40% grid fee reduction for consumers
Works across multiple buildings	No (vZEV does, with conditions)	Yes — entire municipality
Setup complexity	Medium — sub-meters, owner vote, billing	Low with Upgrid — one sign-off, we handle the rest

ZEV Switzerland 2026:
Self-Consumption Group
Explained

What is a ZEV? A clear definition

ZEV Switzerland 2026:
Self-Consumption Group
Explained

What is a ZEV? A clear definition

Who can form a ZEV?

How does ZEV billing work?

What does a ZEV cost? Setup and ROI

One-time costs

Ongoing costs

ZEV, vZEV or LEG — which, when?

ZEV vs LEG: side-by-side

ZEV for tenants

Frequently asked questions about ZEV

Next steps

ZEV, LEG or both —
we help you decide.

ZEV Switzerland 2026:Self-Consumption GroupExplained

What is a ZEV? A clear definition

ZEV Switzerland 2026:Self-Consumption GroupExplained

What is a ZEV? A clear definition

Who can form a ZEV?

How does ZEV billing work?

What does a ZEV cost? Setup and ROI

One-time costs

Ongoing costs

ZEV, vZEV or LEG — which, when?

ZEV vs LEG: side-by-side

ZEV for tenants

Frequently asked questions about ZEV

Next steps

ZEV, LEG or both —we help you decide.

ZEV Switzerland 2026:
Self-Consumption Group
Explained

ZEV Switzerland 2026:
Self-Consumption Group
Explained

ZEV, LEG or both —
we help you decide.