IEA Hydro Reports
All reports and other documents prepared by IEA Hydro Annexes can be found and downloaded here. Click on the menu items below for reports produced by each Annex (except for Annex I where reports are published by Penwell)
Annex 1 - Task Force on Upgrading Of Hydropower Facilities
The reports from this Annex are now only available on CD-Rom from Pennwell Books.
Vol 1: Guidelines on Methodology for Hydroelectric Francis Turbine Upgrading by Runner Replacement (2000) 
Vol 2: Guidelines for Hydroelectric Generator Upgrading (2000)
Vol 3: Guidelines on Methodology for Control System Rehabilitation (2000)
These guidelines are a highly useful reference to help hydro-plant owners and operators identify the key financilal and technical steps and considerations in successfully implementing turbine, generator and control system upgrades.
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Guide for Sustainable Small-Scale Hydropower Projects (IEA Hydro, 2019) 1.53MB
See the Annex II page under ABOUT/Completed Activities on the main menu to download the complete interactive guide
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AnnexII_STA5_Summary Report_May2017 261KB
See the Annex II page under ABOUT/Completed Activities on the main menu to download the complete interactive guide
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Innovative Technologies for Small-Scale Hydro - Summary-Report (IEA Hydro, 2010) 535KB
A survey of innovative technologies and applications for small, mini and micro hydro
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Fish Passage at Small-hydro Sites (IEA Hydro, 2000) 4.23MB
This study reviews downstream and upstream migration systems for of small hydropower development, as well as related monitoring activities.
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Assessment Methods for Small-Hydro Projects (IEA Hydro, 2000) 964KB
A critical review of international computer-based assessment tools and methodologies for reconnaissance, power analysis, pre-feasibility analysis, site evaluation, investigation and design of small hydro projects.
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Assessment of Further Opportunities for R&D - Summary Report (IEA Hydro, 2000) 99.2KB
Report on a small-hydro workshop to assess further opportunities for international small-hydro R&D. The report includes a synthesis of the proceedings of the workshop, a listing of some of the papers presented and a summary of recommendations for future R&D
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Financing of Small-hydro Projects (IEA Hydro, 2000) 113KB
This report describes methods for financing small-scale hydropower projects. Five main topics are covered: the general aspects of financing of small hydropower projects, including the key players in the financing process; alternative financing strategies including a discussion of the different routes of financing, and factors affecting the choice of strategy; a brief discussion of financing conditions; the key points in successful financing; and possible improvements to the financing situation.
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Economic Risk and Sensitivity Analyses for Small Scale Hydropower Projects (IEA Hydro, 2000) 269KB
Before a developer / investor decides to realise a hydropower-project, it is essential to have a total overview of the economy of the project. This includes not only the expected costs and benefits, but also the sensitivity i.e. the corresponding economical risk and uncertainty. By presenting different methods of calculating and illustrating the risks and uncertainty, the report aims to make a useful contribution to the economic evaluation of hydropower projects, and to contribute to the dialogue between developers, investors and financing institutions.
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Small Hydro Mechanical Equipment (IEA Hydro, 2000) 260KB
Includes classification and description of different turbine types; characteristic parameters for the choice of turbine type, size and speed; the design of different types of small hydro turbines, miniturbines and microturbines; and recommencdation for R&D on small hydro.
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Objectives for Small-hydro Technology (IEA Hydro, 1999) 1.64MB
A three part report covering small hydro technology; electrical, control, monitoring & governing for small hydro; and proposals for R&D works in the small hydro field.
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Survey on Positive and Negative Environmental and Social Impacts and Effects of Mitigation Measures on Hydropower Development: Volume 1 (IEA Hydro, 2000) 657KB
The objectives of this study, in which seven countries participated, were to produce a set of international recommendations and criteria for improving the environmental management of hydropower. These objectives extended to developing the information base required for making environmental comparison between hydropower and other forms of electricity production.
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Hydropower and the Environment: Present Context and Guidelines for Future Action - MainReport (IEA Hydro, 2000) 2.72MB
This report reviews processes and conditions which make hydroelectric projects environmentally and socially acceptable, identifies international best practices, and proposes a set of recommendations on hydroelectricity and the environment in relation to energy policy frameworks; stakeholders and the decision-making process; the application of environmental and social criteria when comparing project alternatives; improving environmental management of hydropower plants; and sharing benefits with local communities.
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A Comparison of the Environmental Impacts of Hydropower with those of Other Generation Technologies (IEA Hydro, 2000) 946KB
A Comparison of the Environmental Impacts of Hydropower with those of Other Generation Technologies (2000) 946kb This report describes the general characteristics of different ways of producing electricity in terms of their environmental impact. The scope of the study covers hydropower, coal, natural gas, biomass fuels, nuclear and wind power. A life cycle analysis (LCA) methodology has been used to compare different options, as well as other means.
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Assessment of Further Opportunities for R&D - Summary Report (IEA Hydro, 2000) 99.2KB
Report on a small-hydro workshop to assess further opportunities for international small-hydro R&D. The report includes a synthesis of the proceedings of the workshop, a listing of some of the papers presented and a summary of recommendations for future R&D
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Financing of Small-hydro Projects (IEA Hydro, 2000) 113KB
This report describes methods for financing small-scale hydropower projects. Five main topics are covered: the general aspects of financing of small hydropower projects, including the key players in the financing process; alternative financing strategies including a discussion of the different routes of financing, and factors affecting the choice of strategy; a brief discussion of financing conditions; the key points in successful financing; and possible improvements to the financing situation.
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Economic Risk and Sensitivity Analyses for Small Scale Hydropower Projects (IEA Hydro, 2000) 269KB
Before a developer / investor decides to realise a hydropower-project, it is essential to have a total overview of the economy of the project. This includes not only the expected costs and benefits, but also the sensitivity i.e. the corresponding economical risk and uncertainty. By presenting different methods of calculating and illustrating the risks and uncertainty, the report aims to make a useful contribution to the economic evaluation of hydropower projects, and to contribute to the dialogue between developers, investors and financing institutions.
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Small Hydro Mechanical Equipment (IEA Hydro, 2000) 260KB
Includes classification and description of different turbine types; characteristic parameters for the choice of turbine type, size and speed; the design of different types of small hydro turbines, miniturbines and microturbines; and recommencdation for R&D on small hydro.
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Hydropower and the World's Energy Future (IEA Hydro, 2000) 107KB
In November, 2000, the IEA Implementing Agreement on Hydropower Technologies and Programmes, the International Hydropower Association (IHA), the International Commission on Large Dams (ICOLD), and the Canadian Hydropower Association (CHA) jointly produced this white paper which explores the role of Hydropower in bringing clean, renewable energy to the world.
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Hydropower- A Key to Prosperity in a Changing World (IEA Hydro, 2000) 425KB
The IEA Hydropower Implementing Agreement and the United States Bureau of Reclamation cooperated to produce this pamphlet. The well-illustrated and concise document provides a good starting point for research into hydropower by giving an overview of fundamentals, some historical perspectives, its worldwide development and capacity,its role in meeting world energy demand, and its advantages and disadvantages.
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Annex_VIII_CaseStudy0507_ArrowLakes_Canada 214KB
Refers to Keenleyside Generating Station located on Arrow Lakes Reservoir
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IEAHydroTCP_AnnexIX_White Paper_Oct2019 2.45MB
Flexible Hydropower Providing Value to Renewable Energy Generation (October 2019)
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Vol1_Report_Annex_XI 1.32MB
Volume 1 - Report
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Vol2_Case_History_English(1-206) 5.16MB
Volume 2 - Case Histories (Pages 1-206)
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Vol2_Case_History_English(207-408) 6.6MB
Volume 2 - Case Histories (Pages 207-408)
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Vol2_Case_History_English(409-598) 5.17MB
Volume 2 - Case Histories (Pages 409-598)
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GHG Guidelines Volume_3_Management,Mitigation and Allocation 1,020KB
Managing the Carbon Balance of Freshwater Reservoirs: Volume 3: Guidelines for Quantitative Analysis of Net GHG Emissions from Reservoirs: Management, Mitigation and Allocation (2018)
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Annex_XII_Guidelines_Volume_2_13Nov2015 3.13MB
Managing the Carbon Balance of Freshwater Reservoirs: Volume 2: Modeling (2015)
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GHG_Guidelines_22October2012_Final 11MB
Managing the Carbon Balance of Freshwater Reservoirs: Volume 1: Measurement Programmes and Data Analysis (2012)