Institute for Energy Transition
dedicated to Marine Renewable Energies
RSS News
3e campagne hivernale de mesures
28/10/2019

Launch of the 3rd winter measurement campaign

Essais hydrodynamiques en bassin
18/10/2019

Latest progress of the OMDYN2 project

DUNES R&D project
15/10/2019

DUNES R&D project: information meeting in Dunkirk on 15 October

Pose plaques PVC sur la bouée du site MISTRAL pour étude du biofouling
29/08/2019

Last August, several PVC plates were installed on the keel of two special mark buoys in the Mediterranean Sea.

Atelier thématique TROPHIK
14/06/2019

Thematic and scientific workshop in Caen on 14 June.

IMPALA

Impacts on micro-plankton of artificial upwelling inputs

Duration: 3 years

Project description

The IMPALA project focuses on Ocean Thermal Energy Conversion (OTEC) which consists of using the temperature difference between the surface and the depths of the ocean to operate a thermal machine. The production of OTEC is optimal when the temperature difference becomes greater than 20°C (typically 5°C at depth at -1000 m and 25°C at surface) which is the case in tropical areas.
The IMPALA project aims to study the potential impacts of deep water discharges in the subsurface of an ocean thermal power plant. Indeed, the subsurface supply of water of very different background, temperature and chemical composition, as well as the cooling of surface water at the exit of the exchanger, could locally induce a modification of the functioning of the planktonic ecosystem equivalent to the implementation of an artificial upwelling.

Objectives

  • Specify the biogeochemical processes involved in an artificial upwelling related to the operation of an OTEC plant in an oligotrophic environment
  • Improve knowledge of tropical environments and their biogeochemical functioning in order to apply it to the study of the impacts of the discharge of future OTEC plants at sea

Partners

Coordination: France Energies Marines
Scientific and technical management: UBO

IMPALA project partners