#Japan #Renewable Energy #Tokyo #NEDO #DER

Introduction

On July 1st, NEDO (National Research and Development Agency for New Energy and Industrial Technology) commenced a critical project aimed at reducing the integration costs of power sources. This initiative focuses on optimizing and securing flexibility within the power system, especially for distributed energy resources (DER). A total of eleven notable organizations, including TEPCO Power Grid Corporation, Waseda University, and Hitachi Ltd., have joined forces for this endeavor.

Objectives of the Project

The new project aligns with the ongoing FLEX DER project, initiated in 2022 by NEDO. This project addresses issues related to the increasing congestion within the power system caused by the large-scale incorporation of renewable energy. The primary goals are twofold: mitigating the inhibition of renewable energy generation and enhancing the operational flexibility of DERs.

Previous Developments

In prior phases of the FLEX DER project, significant progress has been made in developing technology to alleviate power congestion caused by excessive renewable energy integration into distribution networks. Notably, tests conducted in Nasu-Shiobara, Tochigi Prefecture in May and September 2024 confirmed the feasibility of utilizing batteries and electric vehicles to relieve congestion at substations.

Implementation Strategy

The newly launched project will build upon the insights gained from the previous technologies and validations. The main components of implementation include:

1. FLEX DER Study: This segment will focus on more refined management of DER operations and establishing safety-net strategies for situations where DERs may be inactive. The examination will continue through field trials within Tochigi Prefecture.

2. DER Aggregation and Distribution Functions: A systems approach will be developed to balance power congestion relief activities with maintaining supply and demand equilibrium. This target is crucial as Japan aims to expand the use of renewable energy significantly.

Collaboration Efforts

The collaboration of the eleven entities in this initiative is expected to enhance the effectiveness of DER utilization across Japan. By maximizing the capabilities of distributed energy resources, the project aims to facilitate a greater adoption of renewable energy sources domestically.

Challenges Ahead

Despite the promising advancements, challenges remain in balancing the integration of renewable energy with grid stability. The project acknowledges that congestion within the power system poses an ongoing risk, necessitating adaptive measures and robust technological solutions.

Conclusion

NEDO's recent project is a vital step towards a sustainable future, emphasizing the need for flexible and innovative solutions in the energy landscape. As Japan progresses on its path to enhance renewable energy adoption, the success of this initiative could serve as a model for other nations dealing with similar energy transition challenges.

For more information about this project or inquiries, stakeholders can contact the responsible offices of the participating companies, including TEPCO Power Grid Corporation and Waseda University.