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Ensuring the quality of advice on energy

Anyone looking to implement state-of-the-art energy-efficient refurbishment will need professional assistance. dena is committed on a number of levels to high standards of consulting, planning, execution and quality assurance.

Qualified energy consultants are the go-to people for all aspects of raising energy efficiency in buildings and how it can be achieved by energy-saving building and refurbishment.

Consulting and planning

Energy-efficient building and refurbishment

Energy consultants offer more than just advice on energy issues. Depending on their professional qualifications, they can also provide building planning, support during construction and even building services. This is why the various specialists for energy-efficient and climate-neutral building and refurbishment – architects, engineers, skilled tradespeople and energy consultants – make a vital contribution: they are in contact with private and public sector homeowners and are able to provide them with detailed advice, to encourage them to invest in energy-efficient and climate-neutral construction projects and to outline possible solutions.

Active in the interests of quality assurance

Energy-efficient building refurbishment is a complex task requiring the know-how and commitment of experts in a number of phases: analytic advice on energy at the beginning, then the planning of measures, support during construction and finally monitoring after completion. dena provides a number of services to strengthen the expertise of the specialists involved and to consistently maintain high-quality results: the Climate-neutral Building Forum developed on behalf of the German Federal Ministry of Economics and Climate Protection (Bundesministerium für Wirtschaft und Klimaschutz, BMWK), the Database of Energy Efficiency Experts and numerous online tools. After all, the intended results will only be achieved if the measures are planned and implemented by professionals.

Advice on energy from a holistic perspective

Before starting consultation and planning, dena recommends viewing a building individually and as a system. This is because a variety of measures may be appropriate, depending on the building’s condition. For instance, homeowners can replace the heating system, integrate renewable energy sources, improve the efficiency standards of the building envelope and windows or combine a number of measures as part of a general refurbishment. Experienced and independent experts can help to clarify which solution is ideal for the specific building. Here, the specialists consider the wishes of the homeowner and their financial resources, as well as the range of available subsidisation programmes.

Projects on the topic

Build Up Skills II – QUALITRAIN

The EU Project Qualitrain focuses on strengthening basic and advanced vocational training levels among the construction workforce in the fields of energy efficiency and renewable energy sources.


  • Project start: 2013
  • Project duration: 32 months
  • Project partners: ZDH, FBH, HPI, BIBB, ZWH, ZdB
  • Funded by: European Commission as part of the Intelligent Energy Europe programme

Database of Energy Efficiency Experts for Government Funding Programmes

Investors can consult the Database of Energy Efficiency Experts for Government Funding Programmes to find experts in the area of energy-efficient building and refurbishment.


  • Project start 2011
  • Source of funding: BMWK, KfW Bankengruppe, BAFA
  • Number of listed experts: over 18,000 and about 16,000 available online
  • Number of network partners: 23

Campaign “zukunft haus” (“future house”).

What was originally conceived of as a portal for informing and motivating owners in 2003 has now developed into an extensive campaign and a mainstay for stakeholders from the industry and politicians, as well as for the press.


  • Project start: 2003
  • Over 9,000 newsletter subscribers
  • Approx. 30,000 press reports with a total reach (circulation) of 1.2 billion
  • Turnover of more than 6.3 million information brochures
  • Free hotline: over 100,000 questions on energy efficiency in buildings
  • Website: (consumer) information tailored specifically for a particular target group; over 8 million visitors on central internet platform