Apartment buildings with photovoltaics for a modern tenant electricity project

Make solar power available where it is generated.

Tenant electricity concepts connect property value, local energy supply and attractive conditions for owners and residents.

Discuss your project

Investors · Tenant electricity

Organise building energy for multiple parties

Tenant electricity connects local generation, metering and supply within a multi-unit building.

A solution designed around the project

Use local power within the building

Photovoltaics can be connected directly with the consumption of several units and shared building systems.

Designed rather than guessed

The concept is based on the building, technical conditions, demand and intended use.

Interfaces included

Existing systems and sensible future components are considered from the outset.

Clear next steps

Assessment, planning and implementation are divided into transparent project phases.

Multi-unit building as the basis for a tenant electricity concept
AI-generated visualisation

Coordinate metering, technology and operation

Building structure, meters, user groups, generation and billing concept must be treated as one model.

We create the technical foundation and organise the interfaces for the specific property.

  • Analyse building and consumption structure
  • Prepare the technical metering concept
  • Coordinate PV, storage and shared consumption
Metering system for a tenant electricity project
AI-generated visualisation

From first assessment to implementation

1. Requirements

We clarify goals, current systems and the technical context.

2. Assessment

Relevant building, site, grid and consumption data are assessed.

3. Concept

The components and interfaces are combined in a coherent design.

4. Next phase

Scope, responsibilities and the route to implementation are agreed.

Frequently asked questions

What determines the design?

The decisive factors are the site, demand, existing infrastructure, intended operation and planned extensions.

Can existing technology be included?

Often yes. Compatibility, interfaces and the condition of the existing system must be checked individually.

Is the solution expandable?

Expandability can be included in the initial design, provided the technical framework is defined accordingly.

When is a binding offer possible?

Once the relevant technical information, site conditions and desired scope have been clarified.

Assess a tenant-electricity project

We review the building, metering structure and energy demand and develop a technical project basis.

Request project

What is tenant electricity?

“Tenant electricity” refers to a model in which solar power is generated directly at the building—usually via a rooftop photovoltaic system—and then supplied to the residents. The generated electricity is primarily consumed on-site. Surplus electricity is fed into the public grid, while additional power needs are met by drawing electricity from the grid.

Important:
In the tenant electricity model, the power does not pass through the public electricity market but is distributed directly within the building. Specific legal regulations apply to this process, designed—among other things—to keep electricity costs attractive for tenants.

Frequently Asked Questions About Tenant Electricity

Tenant Electricity | ErEne Green Technologies GmbH
How much can be saved with tenant electricity?

Tenants often pay 10–15% less than the local standard utility tariff. The exact price depends on the specific property and the solar system’s output.

As a tenant, am I required to use tenant electricity?

No. Participation is voluntary. Tenants can choose a different electricity provider at any time.

What happens when the sun isn't shining?

The missing electricity is automatically supplemented by the public grid. The supply remains reliable.

How large does a PV system for tenant electricity need to be?

A minimum of 30 kWp is recommended. Tenant electricity projects typically range from 90 to 100 kWp.

Is tenant electricity also suitable for existing buildings?

Yes. A suitable roof area and the possibility of integrating measurement technology are prerequisites.

What subsidies are available for tenant electricity?

There is a special remuneration for tenant electricity under the Renewable Energy Sources Act (EEG).

As a landlord, what tasks do I have to handle myself regarding tenant electricity?

As the landlord, you are primarily responsible for providing the roof space and deciding to proceed with the project. At ErEne, we handle the planning, installation, registration, and grid connection of the PV system. Electricity is supplied to tenants by the eventual operator or a third-party provider of your choice; you do not need to sell electricity yourself and bear no supply risk.

 Company

Tenant Electricity: Our Services

| Standortanalyse
| Erstgutachten
| Projektentwicklung
| Auslegung & Installation

As an EPC company, we handle the planning and construction of your tenant electricity project, including the procurement of components and services tailored to your needs. Taking all requirements into account, we work with you to develop a customized concept for the construction of your tenant electricity project.

Planning Tenant Electricity!

1. Contact & Consultation

Our experts provide personalized advice and develop a tailored concept for your tenant electricity project. We will discuss your requirements, preferences, and questions together. You can easily get in touch with our team—without obligation—by phone or email. Tip: Feel free to use our interactive contact form for faster processing!

2. Planning

Next, based on our consultation, we will plan your customized solar project, taking into account your load profile and energy costs. We will then present our system design (including a cost-effectiveness analysis) to you during a meeting or online.

3. Quote & Installation

In the third step, you will receive a no-obligation quote from us. If you decide to partner with ErEne, we will begin implementing the project! Our professional team handles the expert installation of the PV system, with our PV specialists available to provide advice throughout the entire process. Once installation is complete, the tenant electricity project is handed over to the operator to supply the tenants.