Perspectives in Reusing Sophisticated Wind-Energy-Converters in Developing and Fast-Developing

Perspectives in reusing sophisticated wind-energy-converters in developing and fast-developing countries (Referring to either 6.3: Transcontinental Co-operation and Know-how Transfer or 7.3: Transfer of Technology North-South Co-operation)

Authors: cand.-Ing. Svenja Wortmann cand.-Ing. Holger Peters cand.-Ing. Nico Peterschmidt cand.-Ing. Jakob Schmidt-Reindahl

Mentors: Univ.-Prof. Dr.-Ing. Hans-Peter Beck Dipl.-Ing. Carsten Ropeter

The booming development of wind energy technology affects countries like Denmark and Germany that run short on productive sites. Therefore it is more efficient for investors to replace smaller and middle sized wind- energy-converters (WECs) on highly productive sites with new larger ones instead of just building the new WECs on less productive sites. This process is now known as “repowering”. A large number of these used WECs will be available on the international market within the forthcoming years. Most of these dismantled plants will still have large life expectancies, making them of economic interest to be rebuilt. Nevertheless the demand for used WECs in Europe is judged to remain low, which consequently means, prices will also. For developing and fast-developing countries this is a chance to build up experience in working with renewable energy sources, to establish their own wind energy industries and to profit from technology transfer on low capital expenditure. Starting with tough plants of the first and second WEC-generation leads to relatively easy installation and maintenance in comparison to multimegawatt WECs that require a sophisticated infrastructure.

Students and scientists of the Technical University of Clausthal are investigating efficient options for the application of overhauled repowered WECs from Germany in existing energy systems and island networks of developing and fast-developing countries. The study contains an estimation of the number and cost level of WECs in working order that will be repowered within the following years. Furthermore it presents options for overhauling the WECs and adapting them to the specific requirements of the target countries. All of this is calculated with respect to infrastructure and economical considerations in order to become a “Repowering guide” for planning offices and investors. This “Repowering guide” will provide an insight into the background of repowering issues. The results of this study are extremely influenced by current events, because repowering is a new action and the market is still developing. Consequently new data is occurring “daily” and an ultimate evaluation cannot be carried out at this stage. The investigation is limited timewise to the end of July, therefore the result will be a survey of the situation at that time. Contact

Author for all correspondence:

Nico Peterschmidt (student of engineering of energy systems) financial considerations Seilerstr. 9 38678 Clausthal-Zellerfeld Tel: +49 (0) 5323 – 948810 e-mail: [email protected] or [email protected]

Authors:

Holger Peters (student of mechanical engineering) overhauling and maintenance of mechanical parts Rollstr. 3a 38678 Clausthal-Zellerfeld

Tel: +49 (0) 5323 – 962750 Fax: +49 (0) 69 - 1330 6406 619 e-mail: [email protected]

Jakob Schmidt-Reindahl (student of engineering of power systems) infrastructure of target countries Paul-Ernst-Str. 14 38678 Clausthal-Zellerfeld Tel: +49 (0) 5323 – 961981 e-mail: [email protected]

Svenja Wortmann (student of engineering of power systems) adaptation to the conditions of target countries; electrical parts Marie-Hedwig Str. 15/207 38678 Clausthal-Zellerfeld Tel: +49 (0) 5323 – 9489109 e-mail: [email protected]

Mentors:

Univ.-Prof. Dr.-Ing. Hans-Peter Beck Director of the Institute of Electrical Power Engineering; TU-Clausthal; Germany Leibnizstr. 28 38678 Clausthal-Zellerfeld Tel: +49 (0) 5323 – 72 – 2570 e-mail: [email protected]

Dipl.-Ing. Carsten Ropeter Assistant at the Institute of Electrical Power Engineering Leibnizstr. 28 38678 Clausthal-Zellerfeld Tel: +49 (0) 5323 – 72 – 2593 e-mail: [email protected] Curriculum Vitae

Personal Data

Name: Nico Peterschmidt Address: Seilerstraße 9 38678 Clausthal-Zellerfeld, Germany Tel.: +49 (0) 5323 – 948810 Email: [email protected] Date of Birth: 4th of July 1978 Place of Birth: Georgsmarienhütte, Germany Nationality: German

Education

10/99 – today Study: engineering of power systems at the Technical University of Clausthal, Germany

09/01 Prediploma in engineering of power systems

07/98 Graduation and University Entrance Qualification at Angelaschule, Osnabrück, Germany

Practical training and Experience

10/02 – today project: Repowering of WECs

12/02 lecture about fuel cells at TU-Clausthal, Germany

12/01 – 01/02 4-weeks of practical training at Energy Efficient Options, Cape Town, RSA, installing photovoltaic systems

01/02 – 02/02 3-weeks of practical training at SA Solar Products, Cape Town, RSA, installing water-heating systems

02/01 – 03/01 3-weeks of practical training at OKE, Osnabrück, Germany, gaining experience with different aspects of polymer extrusion

02/00 – 04/00 7-weeks of practical training at KARMANN, Osnabrück, Germany, car manufacturer, department metal works

Language Skills

German native tongue English fluently

Others

08/98 – 06/02 several performances of musical-hits concerts as a vocalist

07/94 – today voluntary social work in Osnabrück, Germany