Hydroelectricity, or hydroelectric power, is electricity generated from hydropower. Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. However, when constructed in lowland rainforest areas, where part of the forest is inundated, substantial amounts of greenhouse gases may be emitted.
The first hydropower plant of Finland is commissioned along the Tammerkoski rapids in Tampere, Pirkanmaa.
On September 22, in the year 1891, The first hydropower plant of Finland is commissioned along the Tammerkoski rapids in Tampere, Pirkanmaa. This event is recorded as a Historical Events event in the history of September 22, one of 440 recorded events on this date across all of history.
Key Facts
- This event took place on September 22, 1891 (AD era).
- It is categorised as a Historical Events event in recorded history.
- Referenced in 5 Wikipedia articles.
- Wikipedia source last updated on 24 August 2026.
On This Date in History 440
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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