Usinas Hidrelétricas
Autor: Ciências | Publicado: 2013-02-27T16:00:00-08:00

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O problema de encontrar fontes de energia: 

Para suprir sua necessidade de
desenvolvimento, o ser humano ao longo dos tempos foi dependendo cada vez mais
de fontes de energia. Atualmente essas fontes são classificadas em dois tipos:
as renováveis e as não renováveis. 



Fontes renováveis e não renováveis: 

A energia elétrica pode ser gerada por fontes
renováveis, como a força das águas e dos ventos, o sol e a biomassa;

Ou não renováveis, como os combustíveis
fósseis e nucleares; 

No Brasil devido a sua enorme quantidade de
rios, a maior parte da energia elétrica disponível é proveniente de grandes
usinas.



Para mais informações acesse:





http://educacao.uol.com.br/disciplinas/geografia/fontes-de-energia-1-recursos-energeticos-disponiveis-no-brasil.htm



http://natureza-naturezam3.blogspot.com.br/2010/11/fontes-de-energia-renovaveis-e-nao.html



http://www.ecodebate.com.br/2010/04/19/apontamentos-sobre-fontes-de-energia-artigo-de-roberto-naime/







O QUE É
UMA USINA HIDRELÉTRICA?



Uma usina hidrelétrica é um conjunto de obras
e equipamentos cuja finalidade é a geração de energia elétrica, através de
aproveitamento do potencial hidráulico existente num rio.



Para detalhes técnicos acesse: 

http://www.infoescola.com/fisica/como-funciona-uma-hidreletrica/

http://www.objetivo.br/noticias.asp?id=3095









POR QUE
O BRASIL PREFERE ESTE MODELO



É responsável por cerca de 85% da produção
elétrica do país.

Os climas chuvosos, o relevo
predominante&nbsp; de planaltos e solos favoráveis
ao armazenamento de água, faz dessa matriz a mais viável economicamente.



Para mais informações acesse:



http://grupoglobobobo.blogspot.com.br/2012/08/matriz-energetica-o-que-e.html



http://www.biodieselbr.com/destaques/analise2/demanda-energetica-brasileira.htm



PARA IMPACTOS
AMBIENTAIS:



http://projetononame.blogspot.com.br/



http://www.cepa.if.usp.br/energia/energia2000/turmaA/grupo6/IMPACTOS.HTM