Relying on hydro-generation in the Amazon means that electricity supply will be vulnerable to droughts and depend on long distribution lines to bring power to the populous south.

仰赖亚马逊河的水力发电，意指巴西电力供应将易受乾旱伤害并要藉由长途配电线将电力带往人口稠密的南部。

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He first used pedal power, then turned to hydro and finally turned to solar power generation.

VOA: standard.2009.12.13

"we would be forced to buy power that we don't need and idle existing generation or have hydro that is very cost effective -- very cheap,actually -- being replaced by very expensive power."

VOA: standard.2010.03.23

Bentek, the natural gas analysis group, figures that hydro generation will be 35% higher than usual this year, averaging 166 gigawatt-hours per day from January through August.

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The growth of hydro generation over the last five years is equal to all the other renewable technologies combined, mainly because of the immense Chinese dam projects.

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The BPA continues to express concerns that wind operators will force it to reserve a greater percentage of its hydro generation as backup reserves and could ultimately compromise operations if too much water builds up.

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