水力発電(すいりょくはつでん)

すいりょくはつでん
noun
hydroelectric power generation; hydropower
formaltechnology
1. hydroelectric power generation; hydropower
Electricity generation that uses the flow of water (typically from a dam or river) to turn turbines. Discussed in news, school textbooks, and policy debates about energy sources, climate change, and renewable energy.
水力発電(すいりょくはつでん)はクリーンなエネルギーだ。
Hydroelectric power is a clean source of energy.
この川(かわ)には水力発電(すいりょくはつでん)のダムがある。
There is a hydroelectric dam on this river.
日本(にほん)の電力(でんりょく)のうち水力発電(すいりょくはつでん)が占(し)める割合(わりあい)は年々(ねんねん)減(へ)っている。
The share of Japan's electricity supplied by hydroelectric power is decreasing year by year.

Composed of 水力(すいりょく) (water power) and 発電(はつでん) (electricity generation). Hydroelectric power was once the dominant source of electricity in Japan but has been overtaken by thermal and nuclear generation; today it accounts for roughly 7–8% of Japan's total electricity.

Common collocations

  • 水力発電(すいりょくはつでん)所(しょ): hydroelectric power station
  • 水力発電(すいりょくはつでん)のダム: hydroelectric dam
  • 水力発電(すいりょくはつでん)を行(おこな)う: to carry out hydroelectric power generation
  • 小規模(しょうきぼ)水力発電(すいりょくはつでん): small-scale hydropower
  • 水力発電(すいりょくはつでん)の割合(わりあい): share of hydroelectric power (in total generation)

Related words

Related Words

Related: 火力発電(かりょくはつでん) (thermal power generation)
Related: 原子力発電(げんしりょくはつでん) (nuclear power generation)
Related: 太陽光発電(たいようこうはつでん) (solar power generation)
Related: 風力(ふうりょく)発電(はつでん) (wind power generation)
Related: 再生(さいせい)可能(かのう)エネルギー (renewable energy)
Related: 風力(ふうりょく) (wind power)
Related: 原子力(げんしりょく) (nuclear power, atomic energy)
general
Added 2026.4.13 4:25 · Revised 2026.9.2 13:02
23500/23609_suiryokuhatsuden