Hydropower, when planned and designed correctly, is regarded to be among the lowest-carbon sources of renewable electricity generation.
Before now, however, there was no reliable and cost-effective way of estimating the emissions created from building a reservoir, taking into account pre-existing conditions and naturally occurring emissions.
All ecosystems, including river systems, naturally emit greenhouse gases such as carbon dioxide and methane.
When a reservoir is created, there will be a change in GHG emissions which are dependent on local environmental conditions.
Greenhouse gases can be released when a reservoir is introduced due to the decomposition of organic material in the flooded area.
A decade in development, the GHG Reservoir Tool was created through a multi-stakeholder research project led by the International Hydropower Association and the UNESCO Chair in Global Environmental Change.
The tool uses a conceptual framework created with scientists from the University of Quebec at Montreal, the Norwegian Foundation for Scientific and Industrial Research and the Natural Resources Institute of Finland.
The next G-res Tool Training course will start on Monday 1 February 2021 (participants are required to attend live streaming sessions on the 1, 3 and 5 February). This course ends on Friday 5 February 2021. Visit our training webpage for more information on upcoming training dates.
“The development of the G-res Tool is a major milestone in the research on GHG from reservoirs. This is the first scientifically based tool for planners and designers to quantify reservoir emissions.”
– The World Bank
“Another innovative feature of the G-res Tool is its ability to calculate the net impact of a future reservoir on the GHG regime of a particular site. This is a significant breakthrough.”
– Yves Prairie, UNESCO Chair in Global Environmental Change
“As a consultant, I can see growing demand for GHG emissions estimates in tenders for hydropower projects globally. Thanks to the training I received on the G-res Tool, I can now provide clients with cost-effective GHG emissions analyses as a certified user.”
– Karin Grandin, Sweco
“The G-res Tool helps non-scientists to easily measure a reservoir’s carbon emissions. With ongoing improvements to suit different climate regions, the tool provides a convenient approach for hydropower operators and companies, such as Sarawak Energy, to estimate the greenhouse gas profile of a reservoir.”