Green Hydro Criteria
overview criteria
Scientifically based criteria are used to determine basic ecological standards for green hydropower plants. These criteria are chosen in order to ensure that the river system’s principal ecological functions are preserved even when they are affected by hydropower generation.
basic green power requirements

minimum flow

hydro peaking

reservoir management

bed load management

power plant design


Establishing a uniform set of basic green electricity standards allows supra-regional comparable certification of different power plants, regardless of their age, size, construction or operation. Thus defining a general benchmark for assessing different types of installations in different catchment areas.

Determining the basic ecological standards for green electricity involves estimating the direct impact of power generation on the river ecosystem and its riverine landscapes.

The criteria were structured using what is called an environmental management matrix. (See picture above)

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