All Fields of Competence

Energy Efficiency & Operational Optimization

The reasons why a building consumes more energy than necessary are manifold. Depending on the initial situation in the building (new buildings, existing buildings, degree of mechanisation, documentation of the building operation) and the organisation, we adapt our consulting and engineering services to the clients' requirements. Years of experience and our knowledge in applying different tools and methods enable us to identify fast and cost-efficient measures as well as to develop long-term optimization strategies.

In all our projects, we value the close cooperation with the operating personnel on site, who know the buildings best. We see ourselves as an external source of inspiration and as an expert guide during implementation.

e7 has the relevant engineering business license "Energy and Environmental Technology".

  • Energy Audit
    An energy audit is the basis for any comprehensive building optimisation, in order to ascertain the initial situation and, building on this, to take optimisation measures.
  • Energy Consumption Analyses - Load Profile Analyses
    The e7 load profile analysis shows in a very short time how the building is ticking and where savings can be easily achieved.

  • Energy Consumption Monitoring
    Energy consumption monitoring enables real-time diagnosis of faults and malfunctions and is an important instrument for improving energy performance.

  • Technical Monitoring
    The technical monitoring provides an exact TARGET-ACTUAL comparison of quality specifications at the plant level and a precise identification of defects. This is particularly useful for new and/or complex plants.

  • Examination of the settings in the building control system
    The building management system (BMS) only functions as well as its specifications and programming. By analysing the BMS settings, you can quickly identify unnecessarily energy-consuming patterns and work out optimisation proposals.

  • Re-Commissioning
    Particularly in complex buildings, there is usually a high potential of very economical no- and low-cost measures that can be implemented simply by adapting the systems to the actual requirements. With re-commissioning, a mix of several methods usually leads to the best result.

Project List
Project Client Jahr
InSite - Monitoring and evaluation of innovative demonstration buildings Federal Ministry of Climate Action, Environment, Energy, Mobility, Innovation and Technology 2023
Analysis of electricity, heat and gas consumption of Austrian companies to gain insights into the energy consumption 2023
Bringing Local and Regional municipalities towards owning their Sustainable Energy and Climate Action Plans (SECAPs) European Commission 2023
Participatory Decarbonisation Roadmap for Vienna's Kahlenbergerdorf Austrian Research Promotion Agency (Österreichische Forschungsförderungsgesellschaft mbH) 2022
KNOwNEBs - Integration of non-energy benefits into energy audit practices to accelerate the uptake of recommended measures European Commission 2022
IncorporatEE: Sustainable structures for energy efficiency projects in Austrian smart cities European Commission 2022
BTTAB - Broad-based testing of energy-efficient demonstration buildings with thermally activated building components Federal Ministry of Climate Action, Environment, Energy, Mobility, Innovation and Technology 2021
Quality assurance for the implementation of a cross-property and cross-system greening concept for the district “Am Kempelenpark” 2021
Power Consumption Analysis in 10 Austrian Retirement homes Caritas der Erzdiözese Wien 2020
Support for MA 48 in the context of energy management 2020
Quality assurance of building services engineering for the new building annex of the Döbling Private Hospital in Vienna 2020
Consultation for the adaptation of the Energy Efficiency Act Federal Ministry of Climate Action, Environment, Energy, Mobility, Innovation and Technology 2020
Modernization Partnership Ukrainian Hospitals Society for International Cooperation 2019
Load Profile Analysis 2018
All Projects