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Presa Sangregado Dam
Presa
Sangregado
Dam
is a high-earthen
hydroelectric dam
on the
south-east
shore
of
Lake Arenal
in the
Guanacaste Province
of
northwest
Costa Rica
. The
dam
is and high. The
installed
hydroelectric
capacity
is
157
megawatts
. The
hydroelectric power plant
is
operated by
Instituto Costarricense de Electricidad
.