Japan to develop geothermal power under net zero plan

Market: Electricity, Emissions
16/04/25

The Japanese government is gearing up to develop geothermal energy, as the clean power can help to decarbonise the power sector with stable output, unlike weather-dependent renewables such as solar and wind.

The trade and industry ministry Meti on 14 April launched a public-private council to discuss the development of next-generation geothermal energy, aiming to formulate a draft guideline, including capacity and cost targets, by around October this year. The new technology could lift the country's potential geothermal capacity to at least 77GW, compared with 23.5GW based on conventional methods, according to the council.

The draft plan aims to establish the next-generation geothermal technology as early as the 2030s, to expand the use of the clean energy with competitive prices toward 2040, while tacking geological challenges, such as fault and complex geology, in Japan. Should the next-generation technology, such as closed-loop and supercritical geothermal, prove practical, Japan could utilise its potential, said Meti minister Yoji Muto on 15 April. Japan could consider exporting the next-generation technology globally, as it has around 70pc global share in conventional geothermal turbines, he added.

The geothermal strategy is in line with the country's new strategic energy plan (SEP), which was published in February, as well as prime minister Shigeru Ishiba's push to develop geothermal capacity. Ishiba had focused on less-utilised and high potential geothermal, as well as micro-hydropower, during his [campaign for the ruling Liberal Democratic Party presidential election](https://direct.argusmedia.com/newsandanalysis/article/2608517) last year.

The SEP assumes geothermal will account for 1-2pc of Japan's power mix in the April 2040-March 2041 fiscal year, which is relatively marginal compared with other renewables such as solar at 23-29pc, wind at 4-8pc, hydroelectric at 8-10pc and biomass at 5-6pc. But even the small share would be much higher compared with its actual share of 0.3pc of total power generation in 2023-24.

Diversification of renewable power sources would be necessary to achieve Japan's plan to reduce its greenhouse gas emissions by 60pc in 2035-36 and by 73pc in 2040-41, respectively, against the 2013-14 level, before achieving its net zero goal in 2050. Under the SEP, Tokyo aims to reduce its dependence on thermal power to 30-40pc in 2040-41 from 71pc in 2024.

Japanese private firms are already involved in further developing domestic and overseas geothermal projects. Japanese utility Hokkaido Electric Power and construction firm Obayashi said on 16 April that they will study potential geothermal resources in Hokkaido during April 2025-February 2026, taking advantage of subsidies provided by state-owned energy agency Jogmec.

Japanese battery maker Panasonic Energy said on 8 April that it has signed a power purchase agreement with regional utility Kyushu Electric Power's renewable arm Kyushu Mirai Energy to secure around 50GWh/yr of geothermal-based electricity from 1 April. The stable geothermal supplies, unaffected by weather, could double a renewable ratio in its domestic power consumption to around 30pc, Panasonic said.

By Motoko Hasegawa

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02/05/25

Australia's Coalition eyes power, resource funding cuts

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US bill would extend expired biofuel credits

01/05/25

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01/05/25

US bill would extend expired biofuel credits

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Brazil's energy transition spending drops in 2024

30/04/25

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30/04/25

Brazil's energy transition spending drops in 2024

Sao Paulo, 30 April (Argus) — Brazil's mines and energy ministry's (MME) energy transition spending shrank by 83pc in 2024 from the prior year, while resources for fossil fuel incentives remained unchanged, according to the institute of socioeconomic studies Inesc. The MME's energy transition budget was R141,413 ($24,980) in 2024, down from R835,237 in the year prior. MME had only two energy transition-oriented projects under its umbrella last year: biofuels industry studies and renewable power incentives, which represented a combined 0.002pc of its total R7bn budget. Still, despite available resources, MME did not approve any projects for renewable power incentives. It also only used 50pc of its budget for biofuel studies, Inesc said. Even as supply from non-conventional power sources advances , most spending in Brazil's grid revamp — including enhancements to better integrate solar and wind generation — comes from charges paid by consumers through power tariffs, Inesc said. Diverging energy spending Brazil's federal government also cut its energy transition budget for 2025 by 17pc from last year and created a new energy transition program that also pushes for increased fossil fuel usage. The country's energy transition budget for 2025 is R3.64bn, down from R4.44bn in 2024. The new program — also under MME's umbrella — has a budget of around R10mn, with more than half of it destined to studies related to the oil and natural gas industry, Inesc said. A second MME program — which invests in studies in the oil, natural gas, products and biofuels sectors — has an approved budget of R53.1mn. The science and technology ministry is the only in Brazil that increased its energy transition spending for 2025, with R3.03bn approved, a near threefold hike from R800mn in 2024. Spending will focus on the domestic industry sector's energy transition, Inesc said. Climate activists have criticized Brazil for not planning to phase out fossil fuels before, including criticisms to the first letter written by the UN Cop 30 summit's president. The country will hold the summit in November in northern Para state. By Maria Frazatto Send comments and request more information at feedback@argusmedia.com Copyright © 2025. Argus Media group . All rights reserved.

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Brazil's Biomas advances forest restoration project

30/04/25

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30/04/25

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Nemos commit to 15-minute settlement in power SDAC

30/04/25

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30/04/25

Nemos commit to 15-minute settlement in power SDAC

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