Banpu Japan Accelerates Toward Full BESS Aggregation Capability
Banpu Japan (BJP) is developing BESS assets with the goal of becoming a market-ready aggregator by integrating hardware deployment with in-house optimization expertise. Our focus is on developing the capacity to aggregate mulitple battery sites and optimize their performance through advanced control systems. This dual-track strategy reinforces BJP’s position as a committed, long-term player in Japan’s evolving energy landscape.
Energy Sourcing
Generate from Solar, Wind ,
Renewable and Buy from grids
Aggregator
Bundle and optimize multiple
BESS sites using advanced
control systems
Electricity Market
Markets where aggregated
energy and related grid
services are traded
Energy Sourcing
Generate from Solar, Wind ,
Renewable and Buy from grids
Aggregator
Bundle and optimize multiple
BESS sites using advanced
control systems
Electricity Market
Markets where aggregated
energy and related grid
services are traded
Advanced Energy Investment
Banpu Japan is an energy investor committed to building forward-looking platforms
that integrate renewable energy with enabling systems to create resilient, long-term
value. We focus on energy platforms with diverse generation sources, advanced
financing structures, and system-level integration. Our investments align with ESG
principles and leverage digital technologies to enhance flexibility, performance,
and market adaptability.
We are driving Japan’s energy future through advanced investment in complex platforms integrating clean energy, smart systems, and sustainable financing.
Investment Matrix
Contain various types of
energy generations.
Integrate renewable energy
with other systems.
Financed by complex
stakeholders’ structure and
using advanced financial
models and mechanisms.
ESG integration and
sustainability goals.
Advanced technology
and digital integration.
Electricity Power Trading
Banpu Japan (BJP), together with its core subsidiary Banpu Power Trading G.K. (BPPTGK), forms a fully integrated energy platform that operates across the entire electricity value chain—from upstream to midstream and downstream, BPPTGK provides flexible trading solutions across all major Japanese electricity markets and was ranked among the Top 35 retailers nationwide and 21st in the special high-voltage segment in 2024.
Leveraging Banpu Group’s deep expertise in energy resources, generation, and advanced technology, the platform combines market insight, innovation, and operational agility to serve a diverse range of industrial and commercial clients.
Through active roles in balancing services, capacity trading, and aggregator operations, BJP and BPPTGK support Japan’s transition toward a smarter, more resilient, and sustainable energy system.
Banpu Japan (BJP), together with its core subsidiary Banpu Power Trading G.K. (BPPTGK), forms a fully integrated energy platform that operates across the entire electricity value chain—from upstream to midstream and downstream BPPTGK provides flexible trading solutions across all major Japanese electricity markets and was ranked among the Top 35 retailers nationwide and 21st in the special high-voltage segment in 2024.
Leveraging Banpu Group’s deep expertise in energy resources, generation, and advanced technology, the platform combines market insight, innovation, and operational agility to serve a diverse range of industrial and commercial clients.
Through active roles in balancing services, capacity trading, and aggregator operations, BJP and BPPTGK support Japan’s transition toward a smarter, more resilient, and sustainable energy system.
Solar Projects


Plant Type
Solar Power Plant
Commercial Operations
2021
Location
Miyagi
Ownership
100%
Power
20 MW
Status
In Operation

Plant Type
Solar Power Plant
Commercial Operations
2020
Location
Yamagata
Ownership
100%
Power
20 MW
Status
In Operation



Plant Type
Solar Power Plant
Commercial Operations
2022
Location
Fukushima
Ownership
100%
Power
10 MW
Status
In Operation

Plant Type
Solar Power Plant
Commercial Operations
2021
Location
Fukushima
Ownership
100%
Power
12 MW
Status
In Operation



Plant Type
Solar Power Plant
Commercial Operations
2015
Location
Kanto Area
Ownership
40%
Power
10 MW
Status
In Operation

Plant Type
Rooftop
Commercial Operations
2024
Location
Fukushima
Ownership
100%
Power
150kW
Status
CoD



Plant Type
Rooftop
Commercial Operations
2022
Location
Saitama
Ownership
100%
Power
49.9kW
Status
CoD

Plant Type
Solar
Commercial Operations
2024
Location
Hokkaido
Ownership
100%
Power
1.6 MW
Status
CoD



Plant Type
Rooftop & Carport
Commercial Operations
2021
Location
Fukushima
Ownership
100%
Power
49.9kW
Status
CoD

Plant Type
Rooftop
Commercial Operations
2022
Location
Yamanashi
Ownership
100%
Power
24.75kW
Status
CoD


Plant Type
Solar Power Plant
Commercial Operations
2021
Location
Miyagi
Ownership
100%
Power Capacity
20 MW
Status
in Operation


Plant Type
Solar Power Plant
Commercial Operations
2020
Location
Yamagata
Ownership
100%
Power Capacity
20 MW
Status
in Operation


Plant Type
Solar Power Plant
Commercial Operations
2022
Location
Fukushima
Ownership
100%
Power Capacity
10 MW
Status
in Operation


Plant Type
Solar Power Plant
Commercial Operations
2021
Location
Fukushima
Ownership
100%
Power Capacity
12 MW
Status
in Operation


Plant Type
Solar Power Plant
Commercial Operations
2015
Location
Kanto Area
Ownership
40%
Power Capacity
10 MW
Status
in Operation


Plant Type
Rooftop
Commercial Operations
2024
Location
Fukushima
Ownership
100%
Power Capacity
150kW
Status
CoD


Plant Type
Rooftop
Commercial Operations
2022
Location
Saitama
Ownership
100%
Power Capacity
49.9kW
Status
CoD


Plant Type
Solar
Commercial Operations
2024
Location
Hokkaido
Ownership
100%
Power Capacity
1.6 MW
Status
CoD


Plant Type
Rooftop & Carport
Commercial Operations
2021
Location
Fukushima
Ownership
100%
Power Capacity
499kW
Status
CoD


Plant Type
Rooftop
Commercial Operations
2022
Location
Yamanashi
Ownership
100%
Power Capacity
24.75kW
Status
CoD

Battery Projects

Plant Type
Grid-Connected BESS
Commercial Operations
2025
Location
Iwate
Ownership
75%
Power
14.5MW
Status
CoD


Plant Type
Grid-Connected BESS
Commercial Operations
2025
Location
Iwate
Ownership
75%
Power Capacity
14.5MW
Status
CoD
