ZT · dormant
State-authorised and sworn chartered engineer (Austrian Ziviltechniker)
Industrial engineering in construction – licence currently dormant.
ZT register↗Dipl.-Ing. Helmut Mitterfellner
Expert witness for water and energy.
Court-appointed and sworn expert witness – for private and public clients, with experience as a chartered engineer (Austrian Ziviltechniker) in industrial engineering in construction.
since 2009Court-appointed and sworn expert
25+ yearsProfessional experience
STATUSCourt-certified expert
STANDARDDIN EN ISO/IEC 17024
LAW§ 120 WRG supervision
LOCATION8811 Scheifling, Styria, Austria
01 — Qualifications
Verified qualifications.
Court-appointed and sworn expert witness. Scope of certification according to the official register of court experts:
| Field no. | Field of expertise | Certified until |
|---|---|---|
| 49.30 | Hydropower | 21.11.2028 |
| 72.20 | Hydraulic engineering structures | 21.11.2028 |
| 72.24 | Flood protection and river training works | 21.11.2028 |
| 72.25 | Hydropower plant structures | 21.11.2028 |
| 72.85 | Alternative energy technologyLimited to: hydropower and photovoltaics | 21.11.2028 |
| 94.10 | Commercial or industrial properties (building land)Limited to: hydropower, photovoltaics, wind power, biomass | 21.11.2028 |
SV · Gericht
Court-appointed and sworn expert witness (certified by the court)
Listed in the official Austrian register of court experts.
Register of court experts↗ISO/IEC 17024
Certified expert for hydropower
In accordance with DIN EN ISO/IEC 17024 – European Certification CYF (EUcert), since 2023.
EUcert graduates↗BDSF
Accredited expert (Geprüfter Sachverständiger)
Federation of German Experts and Specialist Assessors (BDSF).
BDSF directory↗WRG · ÖWAV
Dam safety officer
Dam safety officer under the Austrian Water Act (WRG), trained by ÖWAV. Member of the Austrian Water and Waste Management Association (ÖWAV) and of ATCOLD – Austrian National Committee on Large Dams.
02 — Services
Expert reports, valuation, construction supervision.
For courts, authorities, power plant operators, PV plant operators, investors and private clients.
Expert reports
- Court expert reports
- Private expert reports
Hydropower plants
- Reports on capacity upgrades
- Reports on maximum net capacity (Engpassleistung)
- Valuation reports
Technical due diligence
- Technical due diligence for hydropower plants
Property valuation
- Valuation of land and property for renewable energy projects
Photovoltaics
- PV systems
- Battery energy storage systems (BESS)
Construction supervision under water law
- Construction supervision pursuant to § 120 of the Austrian Water Act (WRG)
Natural hazards
- Natural hazards under the Styrian development programme for water-related natural hazards and avalanches
Dams
- Dam safety officer under the Austrian Water Act (WRG), trained by ÖWAV
03 — About
Dipl.-Ing.
Helmut Mitterfellner
More than a quarter of a century of professional experience as a chartered engineer (Austrian Ziviltechniker) in industrial engineering in construction, and since 2009 as a court-appointed and sworn expert witness.
Since 2023, Dipl.-Ing. Helmut Mitterfellner has also been an EU-certified expert for hydropower in accordance with DIN EN ISO/IEC 17024 and an accredited expert of the Federation of German Experts and Specialist Assessors (BDSF). He is the right point of contact for private and public clients with questions or concerns in these fields.
SINCE 2009Sworn court expert
25+ YEARSProfessional experience
SINCE 2023EUcert · BDSF
01Objectivity
02Professionalism
03Loyalty
04 — Contact
Discuss your matter.
By phone or e-mail – with a brief description of your question. Correspondence in English or German.
ADDRESSDipl.-Ing. Helmut Mitterfellner
Hummelstrasse 5
8811 Scheifling
Austria
Hummelstrasse 5
8811 Scheifling
Austria
MOBILE+43 (0)664 / 59 011 87