June 17, 2024
ENEOS Renewable Energy Corporation
Mitsubishi Research Institute, Inc.

ENEOS Renewable Energy and Mitsubishi Research Institute Jointly
Develop Operation Plan Development System for Storage Batteries
ENEOS Renewable Energy Corporation (“ERE”; headquartered in Minato-ku, Tokyo;
Kazuhiro Takeuchi, CEO) and Mitsubishi Research Institute, Inc. (“MRI”; headquarteredin Chiyoda-ku, Tokyo; Kenji Yabuta, President and Representative Director) have jointly
developed and launched an operation plan development system for storage batteries(“the System”) that utilizes MERSOL, MRI’s distributed energy resource operation
support service. ERE will use the System for its storage batteries, while MRI will offer
services utilizing the System to other customers.
As the installed capacity of renewable energy grows, the wide spread of storage batteries
is expected to minimize the impact that renewable-energy output fluctuations can haveon power grids. However, using storage batteries in an efficient way that accuratelyreflects changes in weather conditions and power demand is a difficult task. A key
challenge has been the coordination between the two systems: (1) the system fordeveloping theoretically optimal plans on one side and (2) the supply and demand
management system used in the actual bidding and plan submission process. As a result,realizing theoretically optimal plans in real market trading has been difficult. The System
automates operations associated with the coordination between systems, thereby
drastically improving efficiency. It also enables faster optimization and automatedbidding in the intraday market, for example. The System combines the strengths of EREand MRI: ERE brings experience and knowledge gained from operating solar power
plants equipped with storage batteries, and MRI brings know-how in forecasting andinsights into storage battery systems gained from its MERSOL service. This enables theSystem to realize the efficient development of operation plans for storage batteries andtheir implementation.
Looking forward, ERE aims to use the System in operations of storage batteries thatserve its renewable energy power plants and those on the power grid side to optimize
revenues by ensuring a more stable supply of renewable energy and minimizing
imbalance. ENEOS Renewable Energy Solutions Corporation (headquartered in Minatoku, Tokyo; Hironao Uchijima, Representative Director), a fully owned subsidiary of ERE,
will handle the actual power plant operation using the System. MRI will also provide
services using the System to other power producers to help expand the use of distributed

energy resources across Japan. Both companies will continue to explore possibilities forfurther functional improvements and collaboration through these services.
Both ERE and MRI will sustain their efforts to construct new business models that willlead to the decarbonization of critical infrastructure, propelling the transition to a carbonneutral society.
【Overview of the joint development project】About ERE
ENEOS Renewable Energy Corporation (formerly known as Japan Renewable EnergyCorporation）was founded in 2012 with a mission “Changing the world with renewableenergy.” With the understanding of the local community, ERE currently has 108
renewable power plants (including solar, wind and biomass) in operation andconstruction, plus a number of large-scale offshore wind farms and other renewableprojects at the development stage. ERE is committed to addressing environmental andsocial challenges through renewable energy and working towards a decarbonized andfully sustainable society.
https://www.eneos-re.com/english/
About Mitsubishi Research InstituteMitsubishi Research Institute is one of Japan’s foremost think tanks. For the last 50 years,
it has provided the public and private sectors with research and consulting services infields spanning energy, the environment, healthcare, and digital transformation. This isaccompanied by policy recommendations and the real-world application of solutions.
Mitsubishi Research Institute will continue to envision the future, resolve societal issues,and lead change to build a sustainable and prosperous world. For more information,please visit: www.mri.co.jp/en/Inquiries:
ENEOS Renewable Energy Corporation
Corporate Communications & CSR Department
Tel: 03-6455-4905 Email: pr@jre.co.jp
Mitsubishi Research Institute, Inc.
Group Corporate Communications Division
Email: media@mri.co.jp