Evaluating Off-Grid Energy Solutions for Rural Demand in Brazil – A Case study

Fernando Carvalho Assunção da Silva, Fernando Nunes Belchior, Marcelo Nunes Fonseca, Felipe Lima Aires, Julian David Hunt · 2026 · Latin American Journal of Energy Research

Summary. This study evaluates three energy supply configurations for a rural property in Goiás, Brazil, comparing grid electricity with backup generators, grid electricity with off-grid solar, and grid electricity with solar plus battery storage. Financial analysis using NPV, IRR, payback period, and levelized cost metrics shows that the solar-plus-battery system, despite nine times higher upfront costs, delivers the lowest long-term energy costs and strongest financial returns over 30 years, making it the most viable solution for reliable rural power.

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@article{silva-2026-evaluating-off-grid-energy-solutions,
  title   = {Evaluating Off-Grid Energy Solutions for Rural Demand in Brazil – A Case study},
  author  = {Fernando Carvalho Assunção da Silva and Fernando Nunes Belchior and Marcelo Nunes Fonseca and Felipe Lima Aires and Julian David Hunt},
  journal = {Latin American Journal of Energy Research},
  year    = {2026},
  doi     = {10.21712/lajer.2026.v13.n2.p94-109},
  url     = {https://doi.org/10.21712/lajer.2026.v13.n2.p94-109}
}

TY  - JOUR
TI  - Evaluating Off-Grid Energy Solutions for Rural Demand in Brazil – A Case study
AU  - Fernando Carvalho Assunção da Silva
AU  - Fernando Nunes Belchior
AU  - Marcelo Nunes Fonseca
AU  - Felipe Lima Aires
AU  - Julian David Hunt
JO  - Latin American Journal of Energy Research
PY  - 2026
DO  - 10.21712/lajer.2026.v13.n2.p94-109
UR  - https://doi.org/10.21712/lajer.2026.v13.n2.p94-109
ER  - 

Details

DOI

10.21712/lajer.2026.v13.n2.p94-109

Countries

Brazil

Regions

South America

Categories

energy, climate-and-environment, general-innovation

Added

2026-10-01