What you need to know to get started.

We work with owners, portfolio holders and managers of apartment buildings, mixed residential and commercial buildings and property portfolios. Together we assess which measures suit your building, objectives and investment budget.

The starting point is a free initial assessment by video. You provide initial details and existing documents about your property; in the call we clarify your objectives and suitable next steps. If needed, we arrange a separate site visit – free of charge in Berlin and Brandenburg. Detailed planning examines technical and economic conditions more closely.

The initial video assessment and the online checks are free of charge, as is the on-site building audit in Berlin and Brandenburg. For a building audit outside Berlin and Brandenburg, further planning or implementation, we agree the scope and fees with you before any commission. Online checks do not replace detailed technical planning.

This depends on roof area, electricity consumption, tenant participation, investment and the operating model. We assess local use and surplus exports separately. Savings or returns cannot be promised before assessment.

The building and existing heating supply provide the basis for an assessment. Information on consumption, heat emitters and the current heating system is useful. The initial check offers guidance; system sizing follows a more detailed assessment.

A phased rollout can be appropriate. We first review demand, available connection capacity and cable routes. Technical and legal requirements are assessed for the individual project.

An address, number of dwellings and parking spaces, roof and heating details and existing consumption data are helpful. Missing technical information can be clarified in a later discussion.

This depends on the measure, location, applicant and timing. Our insights distinguish current rules from proposed changes. Eligibility and project conditions must be checked before commissioning.