Ein alternatives Modellkonzept für Risikoverteilung und Vergütungsregelung bei BOT Modellen mit großem Baugrundrisiko

BOT models are being used world-wide in the infrastructure sector. Many successful examples for toll motorways, toll bridges, thermal power plants, water supply plants etc. prove that this model is attractive for the private sector. However, only a small number of projects has been realised in the field of hydro power plants, and those are only projects without any significant sub-surface works. Projects with substantial sub-surface works, in particular long diversion and pressure tunnels, shafts and caverns (which are typical for high and medium pressure hydro power plants), as well as long road and rail tunnels include a high geological risk. To stimulate the application of the BOT approach to such projects, it is necessary to develop an approach that takes the special risk potential of such projects into consideration. The proposed model called “K E F I R” applies BOT models in combination with the established FIDIC EPC Turnkey Contract to hydro power plants with substantial sub-surface works. For this purpose, the risks specific to hydro power and sub-surface works must be reduced for the Contractor (Project Company). On the other hand, the innovative power and the know-how of the bidders should be stimulated. To that end, „K E F I R“ follows the principles of a sensible allocation of risks depending on the spheres of influence. It ease financing problems by implementing a financial limitation of geological risks.