
Engineering and expert inspection office for inspections, project management and damage assessment in the energy sector.

HD-Technic GmbH
Ibbenbüren · Hamburg · Meine (near Braunschweig)New on Amplifa
About HD-Technic
HD-Technic GmbH is an engineering and expert inspection office headquartered in Ibbenbüren that has specialised in services in the energy sector since 1992. The focus is on technical support of wind energy projects across the entire life cycle: recurring expert inspections, condition-oriented inspections, post-commissioning inspections, final acceptances as well as continued-operation and structural integrity reports. In addition, the company prepares damage reports and damage assessments, including court-appointed expert opinions, and evaluates onshore and offshore wind turbine prototypes with regard to their insurability, including design and purchase contract reviews. The portfolio is complemented by project and quality management, construction and manufacturing supervision, due diligence processes as well as project management for thermal power plants up to decommissioning. Customers include operators, project developers, manufacturers, banks, insurers, insolvency administrators and fund companies. Founder Hugo Dierkes was in 1997 the first publicly appointed and sworn expert for wind turbines in Germany; the company has assessed more than 4,000 wind turbines.
- Site
- Ibbenbüren
- Processes
- Expert inspections / recurring inspections of wind turbines, Condition-oriented inspections (ZOP) / post-commissioning inspections / final acceptances, Continued-operation inspection / structural integrity report, Damage investigations and damage assessments (damage reports for insurers), Prototype evaluation of onshore and offshore wind turbines incl. design and purchase contract, Technical acceptances and inspections, Project and quality management / construction supervision / manufacturing supervision (wind farms,, Project management thermal power plants (new construction, conversion, decommissioning, permitting)
- Materials
- Recurring Expert Inspections, Condition-Oriented Inspections, Continued-Operation Inspections, Damage Assessment, Prototype Evaluation, Project and Construction Supervision, Due Diligence and Valuation, Power Plant Project Management
- Certificates
- Publicly appointed and sworn expert (Chamber of Commerce/IHK)
- Founded
- 1992
- Industries
- Wind energy (onshore/offshore), Thermal power plants, Biomass power plants, Insurance, Banks
- 01
Project and quality management
- 02
Technical acceptances and inspections
- 03
Condition and damage assessment
- 04
Continued-operation inspection and decommissioning coordination
Services and Procedures
Recurring Expert Inspections
Regular inspections of wind turbines according to the DIBt guideline and type certification requirements; more than 1,500 turbines assessed and more than 50 turbine types.
Condition-Oriented Inspections
Inspections after commissioning and before expiry of the warranty or upon exit from a full maintenance contract; more than 2,500 turbines assessed.
Continued-Operation Inspections
Structural integrity reports for the continued operation of wind turbines after 20 years of service life.
Damage Assessment
Damage reports for insurers since 1986 as well as court-appointed expert opinions as a publicly appointed and sworn expert.
Prototype Evaluation
Evaluation of onshore and offshore prototypes from international manufacturers with regard to insurability, including design and purchase contract reviews.
Project and Construction Supervision
Project management and construction supervision of wind farms, manufacturing supervision of offshore turbines up to the harbour; more than 40 wind farms supervised.
Due Diligence and Valuation
Technical valuation and due diligence processes for insolvency administrators, fund companies and company acquisitions.
Power Plant Project Management
Project management for thermal power plants from concept development through permitting to new construction, conversion and decommissioning.
Locations

Ibbenbüren
DEHeadquarters
Hamburg
DEBranch office
Meine (near Braunschweig)
DEBranch office
Range of Services




Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Expert inspections / recurring inspections of wind turbinesInspection | – | – | – | – | – |
| Condition-oriented inspections (ZOP) / post-commissioning inspections / final acceptancesInspection | – | – | – | – | – |
| Continued-operation inspection / structural integrity reportInspection | – | – | – | – | – |
| Damage investigations and damage assessments (damage reports for insurers)Inspection | – | – | – | – | – |
| Prototype evaluation of onshore and offshore wind turbines incl. design and purchase contractInspection | – | – | – | – | – |
| Technical acceptances and inspectionsInspection | – | – | – | – | – |
| Project and quality management / construction supervision / manufacturing supervision (wind farms,Engineering | – | – | – | – | – |
| Project management thermal power plants (new construction, conversion, decommissioning, permitting)Engineering | – | – | – | – | – |
| Consulting on structural optimisation of gearboxes for wind turbines (up to 6MW class)Engineering | – | – | – | – | – |
| Technical valuation / due diligence (insolvency administrators, fund companies, companyEngineering | – | – | – | – | – |
Additional services
Reference customers
Quality and Independence
As independent, publicly appointed and sworn experts, HD-Technic inspects according to recognised guidelines, including the DIBt guideline for wind turbines, in cooperation with universities, testing institutes and certifiers.
| Evidence | Ibbenbüren |
|---|---|
| Publicly appointed and sworn expert (Chamber of Commerce/IHK) |
History
- 1986
First damage reports for insurers on wind turbines.
- 1992
Foundation of HD-Technic by Hugo Dierkes in Ibbenbüren.
- 1997
Hugo Dierkes becomes the first German expert for wind turbines to be publicly appointed and sworn by the IHK.
- 2015
Conversion into a GmbH; participation of Alexander Dierkes and Torsten Ebbecke.
- 2016
Opening of the Hamburg branch office.
- 2017
25th company anniversary.
- 2018
Opening of the Braunschweig / Meine branch office.