The G-res Tool


We offer training on how to use the G-res Tool through a step-by-step tutorial. Practice sessions are provided where you can review your own project and other real life case studies.

Learn to evaluate the GHG emissions from your reservoirs

Using the internationally recognised G-res Tool

New sustainability and environmental criteria are currently being developed for the provision of green bonds and other forms of climate finance. These criteria are increasingly requiring more detailed assessments of greenhouse gas (GHG) emissions, including those caused by the creation of a reservoir.

This three-day interactive training course has been designed to allow individuals with a basic knowledge of geographic information systems and reservoir GHG dynamics to independently use the GHG Reservoir (G-res) Tool and accurately interpret the results.

The course includes a scientific introduction to the tool and a step-by-step tutorial on using it, as well as training on case scenarios and results analysis. When the course is finished, participants will be accredited as certified G-res Tool users.

Course outline

Day 1: Background and scientific basis behind the G-res Tool.
Day 2: G-res Tool and Earth Engine functionality.

  • A hands-on, step-by-step walkthrough of the G-res Tool, using real examples.
  • Exercises using pre-prepared examples.

Day 3: Run the G-res Tool for your own reservoir and obtain a validated result.

Book a training

The G-res Tool training is going virtual!

With the current global situation, we decided that it was time to bring our training online.

Join our first virtual training on 26-28 May 2020 through an online platform with live presentations, group exercises and Q&A webinar.

Upcoming virtual training dates:

  • 26-28 May 2020

To learn more about the training course and booking options – including booking a course at your workplace – as well as the additional services we offer, please contact

How much does it cost?

The standard rate for the training course is £2,500. Discounts are available to IHA members.

To learn more about IHA membership, visit

Other services

As well as training opportunities, the G-res team offers the following services:

The team can process results for one or more reservoirs and go into further depth with the analysis of the net GHG results obtained.

Validation of results
The team can validate the results you produce using the G-res Tool to get them certified. Validated results acknowledge the quality of the work done using the G-res Tool and certify the results for public disclosure.


Trainee Testimony:

“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

Start today

Contact the G-res Team for further information and to plan a training or assessment.