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G-res tool

The International Hydropower Association, in collaboration with the UNESCO Chair for Global Environmental Change, has developed the G-res tool. The G-res tool is a publicly available web-based tool that allows hydropower companies, investors, consultants, decision-makers and other stakeholders to more accurately report on the net impact on GHG emissions resulting from the introduction of a reservoir in a landscape, whether for an existing or planned reservoir.

Building upon a new conceptual framework developed in cooperation with researchers from the University of Quebec at Montreal (UQÀM), the Norwegian Foundation for Scientific and Industrial Research (SINTEF) and the Natural Resources Institute of Finland (LUKE), the tool uses a new modelling methodology based on current scientific knowledge and over 500 empirical measurements from more than 200 reservoirs worldwide. Using readily available input data, the G-res tool provides a way to assess GHG impacts without the need for large-scale field measurement campaigns and multi-year studies.

The G-res tool was launched during a focus session at the World Hydropower Congress in Addis Ababa on the 10 May.

Click here to access the G-res tool



Supplementary material

Technical Document

Click here to view interview with Yves Prairie on 'Developing the G-res tool'


UNESCO Chair in Global Environmental Change  

In cooperation with:

LUKE    UQAM​   SINTEF  Mott MacDonald

Sponsored by: