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ISO/NP 27120

Small Hydropower Plants-Design principles and requirements

General information

10.20     Sep 4, 2026

ISO

ISO/TC 339

International Standard

Scope

Specifies the general principles and basic requirements of design for small hydropower projects up to 30 MW, mainly including:
--hydrology,
--geology,
--energy calculations,
--project layout and design of hydraulic structures,
--hydroelectric turbine,
--electrical system,
--metal structure,
--construction planning,
--social and environmental impact assessments,
--project investment,
--economic appraisal,
--report preparation.

Life cycle

NOW

PROJECT
ISO/NP 27120
10.20 New project ballot initiated
Sep 4, 2026