ブラジルにおける小規模消費者向け分散型電源の実現可能性：1.5kW以下のシステムに対する利用可能コスト免除による評価

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides empirical evidence on the economic viability of small-scale PV under different regulatory scenarios, useful for modeling distributed generation policies.

🏢実務担当者:Highlights how tariff structures can be adjusted to make small-scale solar attractive, informing utility and policy design for low-income segments.

🏛政策担当者:Suggests a concrete regulatory mechanism (availability-cost exemption) to promote equitable access to distributed generation and address energy poverty.

The application of public policies to promote Distributed Generation (DG) in Brazil is an example of the diffusion of clean energy; however, this growth is concentrated in certain consumer profiles. This study evaluates the economic feasibility of small residential Photovoltaic Distributed Generation (PVDG) systems and proposes a regulatory adjustment to make them viable. The economic feasibility was assessed by simulating Net Present Value (NPV) and payback indicators for small residential systems across 51 Brazilian distribution utilities, using open data from the Brazilian National Electric Energy Agency (Aneel). The results show that small residential systems, especially those serving consumers with 80–170 kWh/month, have the least favourable economic performance under the current rules. To address this imbalance, the study proposes creating a new subgroup (DG-II-0) for systems up to 1.5 kW that are exempt from the availability cost. Simulations indicate that this change would improve the NPV and Payback period, making distributed generation more attractive to low-income families. The proposed adjustment aligns with Brazil’s goal of eradicating energy poverty and with international commitments to a fair and inclusive energy transition. ; The application of public policies to promote Distributed Generation (DG) in Brazil is an example of the diffusion of clean energy; however, this growth is concentrated in certain consumer profiles. This study evaluates the economic feasibility of small residential Photovoltaic Distributed Generation (PVDG) systems and proposes a regulatory adjustment to make them viable. The economic feasibility was assessed by simulating Net Present Value (NPV) and payback indicators for small residential systems across 51 Brazilian distribution utilities, using open data from the Brazilian National Electric Energy Agency (Aneel). The results show that small residential systems, especially those serving consumers with 80–170 kWh/month, have the least favourable economic performance under ...

• base https://periodicos.unb.br/index.php/sust/article/view/60166first seen 2026-09-06 06:05:51 · last seen 2026-09-07 05:37:33