Sustainable and Economic Alternative for the Electric Supply of Isolated Communities in the Brazilian Off-Grid Systems

• 作者: Rafael Kelman Rebeca Doctors
• 来源期刊: 电力能源(英文)
• 学科: 医学
• 关键词: OFF-GRID Hybrid SYSTEMS Public Policy Solar PHOTOVOLTAIC HOMER
• 年，卷（期）: 2017,（9）
• 页码范围: 145-155
• 页数: 11页
• 分类号: R73

摘要

Roughly 99% of the demand for electricity in Brazil is supplied by a national interconnected grid. The remaining 1% is spread in several “isolated systems” of the Amazon region—mini-grids that rely on expensive diesel gensets due to high commodity and transportation costs. The isolated systems also have remote communities disconnected altogether from the mini-grids with inadequate health, education and leisure services. These communities are precariously supplied by small inefficient diesel gensets that run for a few hours per day. In this article, we propose a sustainable and economic alternative for the electric supply of the remote communities of isolated systems through a combination of photovoltaic solar generation and storage. The objective is to improve access to electricity with savings for the communities. The present paper outlines a public policy to meet this objective.