Credit is also harder to secure for small hydro. The longest contract they can obtain is 14 years, compared with 20-30 years for large dams.
Potential for small hydro to soak up $73bn
Rio de Janeiro: About R$130bn ($73bn) could be invested in small hydropower projects in Brazil over the next 15 years, according to APMPE, the local association for small and medium energy producers.
8 October 2009 22:00 GMT
Updated
25 November 2012 10:00 GMT
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