Issue 105 • September 2015

Isolated systems: challenges and opportunities


In this issue we present an overview of current situation of isolated systems, now supplied mostly by diesel generation, and we analyze the technical and economic viability of using solar energy and batteries, and also possible commercial & regulatory obstacles. For anyone who is curious at the choice of an island as the cover picture: PSR has made expansion planning studies for islands such as São Tomé and Príncipe, Mauritius, Seychelles and others, and noted that the solution and planning methodologies are quite applicable from isolated systems to islands and vice-versa.


Exceptionally, the Regulations section of this issue deals only with the update of the tariff flag meter. In the next issue we will return with regulatory news.


In this section we analyze the emissions reduction proposals presented by the Brazilian government to COP21, in Paris, with emphasis on the deforestation issue.


Exceptionally, the supply section will not show updated energy and peak balances, as they have already been presented in the previous issue. In this issue we analyze – and refute - the argument presented by the government that the hydrology of the triennium 2012-2014 would have been more severe than shown by PSR due to large spillages in some regions.

Electronically published since 2006, the PSR Energy Report is a monthly newsletter developed by PSR, whose main objective is to present a comprehensive and current analysis of regulatory, legal issues, water resources and environment and supply of the electricity sector in Brazil.