Tenant electricity is locally generated electricity - e.g. via a photovoltaic system on the roof of an apartment building - which is supplied directly to the tenants on site without having to go through the public electricity grid. In this way, property owners and tenants benefit from self-generated electricity.

The electricity generated is distributed directly in the building. If it is not sufficient (e.g. in bad weather), electricity is automatically drawn from the public grid - the so-called residual power - thus ensuring an uninterrupted supply.

No, participation is voluntary. As part of the so-called GGV (Gemeinschaftsliche Gebäudeversorgung), tenants can participate in tenant electricity and freely choose their electricity provider for grid electricity.

The supply is secured at all times via the public grid. If the PV system fails, electricity is automatically drawn from the public grid.

Tenants benefit from cheaper green electricity, as grid fees, electricity tax and concession fees are eliminated, while landlords benefit from higher revenues and a modern and sustainable property in terms of energy.

Yes, according to the law (§ 42a EnWG), the price for tenant electricity must be at least 10% below the local basic supply tariff.

The exact rate depends on the building occupancy (vacancy rate), consumption behavior and the size of the system. With high building occupancy and a well-coordinated system size:

• Can the EVQ be 30 - 40% without storage or special measures
• With storage or optimized load management up to 70 % and higher

No. Vacant apartments do not consume electricity. Surplus electricity is fed into the grid and remunerated in accordance with the EEG.

Yes, the EEG provides for tenant electricity subsidies, depending on the size of the system and the year of commissioning. Details can be found on the website of the Federal Network Agency.

With our weEMS system (Energy Management System), we automatically generate individual bills for each residential unit - based on modern digital electricity meters.

Usually 2 to 6 months - depending on technical conditions, approvals and coordination with the grid operator.

As a rule, the tenant electricity provider or a specialized service provider takes over the operation, maintenance and monitoring of the PV system.

You need:

• A PV system (existing or planned)
• Tenants who would like to participate in tenant electricity
• A measurement and billing concept - we create it for you

Once the contract has been signed, we take care of registering with the network operator and implementing the technology.

The tenant electricity contract ends automatically. New tenants can voluntarily opt for tenant electricity when they move in.

By law, tenant electricity contracts may have a maximum term of 12 months. Many providers - including us - offer flexible models with a monthly notice period.

• Sale of locally generated electricity directly to tenants
• Feeding surplus electricity into the grid
• Drafting of contractual conditions within the framework of legal requirements

• Transparent contract design: rental and electricity contracts are independent of each other
• Registration & billing: Registration with the Federal Network Agency and grid operator, correct billing in accordance with energy industry law
• Operation & maintenance: Safe operation of the PV system
• Comply with funding conditions: The electricity must be generated and consumed locally