Hydropower and Power-to-gas Storage Options: The Brazilian Energy System Case

Larissa De Souza Noel Simas Barbosa; Javier Farfan Orozco; Dmitrii Bogdanov; Pasi Vainikka; Christian Breyer

doi:10.1016/j.egypro.2016.10.101

Hydropower and Power-to-gas Storage Options: The Brazilian Energy System Case

Larissa De Souza Noel Simas Barbosa
, Javier Farfan Orozco
, Dmitrii Bogdanov
, Pasi Vainikka
, Christian Breyer^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

31 Citations (Scopus)

Abstract

In this study, a 100% renewable energy (RE) system for Brazil in 2030 was simulated using an hourly resolution model. The optimal sets of RE technologies, mix of capacities, operation modes and least cost energy supply were calculated and the role of storage technologies was analysed. The RE generated was not only able to fulfil the electricity demand of the power sector but also able to cover the 25% increase in total electricity demand due to water desalination and synthesis of natural gas for industrial use. The results for the power sector show that the total installed capacity is formed of 165 GW of solar photovoltaics (PV), 85 GW of hydro dams, 12 GW of hydro run-of-river, 8 GW of biogas, 12 GW of biomass and 8 GW of wind power. For solar PV and wind electricity storage, 243 GWhel of battery capacity is needed. According to the simulations the existing hydro dams will function similarly to batteries, being an essential electricity storage. 1 GWh of pumped hydro storage, 23 GWh of adiabatic compressed air storage and 1 GWh of heat storage are used as well. The small storage capacities can be explained by a high availability of RE sources with low seasonal variability and an existing electricity sector mainly based on hydro dams. Therefore, only 0.05 GW of PtG technologies are needed for seasonal storage in the electricity sector. When water desalination and industrial gas sectors' electricity demand are integrated to the power sector, a reduction of 11% in both total cost and electric energy generation was achieved. The total system levelized cost of electricity decreased from 61 €/MWh to 53 €/MWh for the sector integration.

Original language	English
Pages (from-to)	89-107
Journal	Energy Procedia
Volume	99
DOIs	https://doi.org/10.1016/j.egypro.2016.10.101
Publication status	Published - 1 Jan 2016
MoE publication type	A1 Journal article-refereed
Event	10th International Renewable Energy Storage Conference, IRES 2016 - Dusseldorf, Germany Duration: 15 Mar 2016 → 17 Mar 2016

Funding

The authors gratefully acknowledge the public financing of Tekes (Finnish Funding Agency for Innovation) for the ‘Neo-Carbon Energy’ project under the number 40101/14 and CNPq (Brazil Council for Scientific and Technological Development). The authors would like to thank Svetlana Afanasyeva, Arman Aghahosseini and Michael Child for helpful support.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy

Keywords

100% renewable energy
Brazil
economics
grid integration
hydro dams
power-to-gas
solar PV

Access to Document

10.1016/j.egypro.2016.10.101

Cite this

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title = "Hydropower and Power-to-gas Storage Options: The Brazilian Energy System Case",

abstract = "In this study, a 100\% renewable energy (RE) system for Brazil in 2030 was simulated using an hourly resolution model. The optimal sets of RE technologies, mix of capacities, operation modes and least cost energy supply were calculated and the role of storage technologies was analysed. The RE generated was not only able to fulfil the electricity demand of the power sector but also able to cover the 25\% increase in total electricity demand due to water desalination and synthesis of natural gas for industrial use. The results for the power sector show that the total installed capacity is formed of 165 GW of solar photovoltaics (PV), 85 GW of hydro dams, 12 GW of hydro run-of-river, 8 GW of biogas, 12 GW of biomass and 8 GW of wind power. For solar PV and wind electricity storage, 243 GWhel of battery capacity is needed. According to the simulations the existing hydro dams will function similarly to batteries, being an essential electricity storage. 1 GWh of pumped hydro storage, 23 GWh of adiabatic compressed air storage and 1 GWh of heat storage are used as well. The small storage capacities can be explained by a high availability of RE sources with low seasonal variability and an existing electricity sector mainly based on hydro dams. Therefore, only 0.05 GW of PtG technologies are needed for seasonal storage in the electricity sector. When water desalination and industrial gas sectors' electricity demand are integrated to the power sector, a reduction of 11\% in both total cost and electric energy generation was achieved. The total system levelized cost of electricity decreased from 61 €/MWh to 53 €/MWh for the sector integration.",

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author = "\{De Souza Noel Simas Barbosa\}, Larissa and Orozco, \{Javier Farfan\} and Dmitrii Bogdanov and Pasi Vainikka and Christian Breyer",

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T2 - 10th International Renewable Energy Storage Conference, IRES 2016

AU - De Souza Noel Simas Barbosa, Larissa

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AU - Bogdanov, Dmitrii

AU - Vainikka, Pasi

AU - Breyer, Christian

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AB - In this study, a 100% renewable energy (RE) system for Brazil in 2030 was simulated using an hourly resolution model. The optimal sets of RE technologies, mix of capacities, operation modes and least cost energy supply were calculated and the role of storage technologies was analysed. The RE generated was not only able to fulfil the electricity demand of the power sector but also able to cover the 25% increase in total electricity demand due to water desalination and synthesis of natural gas for industrial use. The results for the power sector show that the total installed capacity is formed of 165 GW of solar photovoltaics (PV), 85 GW of hydro dams, 12 GW of hydro run-of-river, 8 GW of biogas, 12 GW of biomass and 8 GW of wind power. For solar PV and wind electricity storage, 243 GWhel of battery capacity is needed. According to the simulations the existing hydro dams will function similarly to batteries, being an essential electricity storage. 1 GWh of pumped hydro storage, 23 GWh of adiabatic compressed air storage and 1 GWh of heat storage are used as well. The small storage capacities can be explained by a high availability of RE sources with low seasonal variability and an existing electricity sector mainly based on hydro dams. Therefore, only 0.05 GW of PtG technologies are needed for seasonal storage in the electricity sector. When water desalination and industrial gas sectors' electricity demand are integrated to the power sector, a reduction of 11% in both total cost and electric energy generation was achieved. The total system levelized cost of electricity decreased from 61 €/MWh to 53 €/MWh for the sector integration.

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KW - Brazil

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KW - hydro dams

KW - power-to-gas

KW - solar PV

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ER -

Hydropower and Power-to-gas Storage Options: The Brazilian Energy System Case

Abstract

Funding

UN SDGs

Keywords

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