Issue

Hydropower schemes have the capacity, with appropriate operation and maintenance, to be long-lived generation assets.  Where operation and maintenance have been inadequately undertaken, predicted electricity generation is not realised. 

Reservoir siltation is a major issue for some hydropower schemes, and without careful assessment and management it can considerably shorten the life of a dam. 

The long-term nature of hydropower developments should be recognised when undertaking cost-benefit analyses, funding arrangements and planning.  Not only electricity generation capabilities need to be considered with a long-term perspective, but also associated benefits such as water supply and negotiated benefits such as housing and job creation.