RT info:eu-repo/semantics/article T1 Comparison of externalities of biogas and photovoltaic solar energy for energy planning A1 Gonçalves Rigueira Pinheiro Castro, Pedro Henrique A1 Filho, Delly Oliveira A1 Rosa, André Pereira A1 Navas Gracia, Luis Manuel A1 Almeida Silva, Thais Cristina A1 Castro, Pedro Henrique Gonçalves Rigueira Pinheiro K1 Renewable energy K1 Public policies K1 Indirect impacts K1 Avoided emissions K1 Quality of life AB The Brazilian electricity matrix is around 80% renewable, and it has registered continuous growth in the expansion of biogas and photovoltaic (PV) systems. The main current Brazilian incentive program for the distributed generation of renewable energy, through a single net metering tariff, that is, a generation compensation system in credits to the consumer who owns the generating unit, does not seem to be effective to promote the expected growth of the biogas. Thus, the objective of this paper was to evaluate quantitatively and qualitatively a set of significant externalities for both sources to contribute to a more realistic energy planning. The externalities quantitatively evaluated for these two renewable sources were: avoided emissions, employment and income, biofertilizers for biogas and use as a constructive element for PV systems. A significant result was that the economic value of the externalities of biogas can exceed those of PV systems for the rural producer by more than 11 times, for society by 1.7 times. It is concluded that, due to the value of biogas externalities being much higher economically than those of PV systems, Brazilian public policies for energy planning should prioritize biogas over solar photovoltaic energy systems. PB Elsevier SN 0301-4215 YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/82072 UL https://uvadoc.uva.es/handle/10324/82072 LA spa NO Energy Policy, Mayo 2024, vol. 188, p. 114070 NO Producción Científica DS UVaDOC RD 24-ene-2026