ＮＥＷＳＲＥＬＥＡＳＥ

March 30, 2020

【 MIRAIT Corporation 】
Field Trial of Electric Power Interchange to Regional Communities
Utilizing Solar Power Generation and an Electric Vehicles toCommence on March 31

MIRAIT Corporation (head office: Koto-ku, Tokyo; President: Toshiki Nakayama; “MIRAIT”),
which is a Group company of MIRAIT Holdings Corporation, will jointly conduct a field trial ofelectric power interchange to regional communities utilizing solar power generation andelectric vehicles (EVs) with ENNET Corporation (head office: Minato-ku, Tokyo; President:Yuji Kawagoe; “ENNET”) and CCD Co., Ltd.

(head office: Chiyoda-ku, Tokyo; President:

Shigeru Komori; “CCD”) from March 31, 2020 until March 31, 2021.
The field trial will involve the installation of solar power gener ation facilities and an EVpower conditioner (SMART V2H ® manufactured by Mitsubishi Electric Corporation) in aconventional energy-saving residence in Karuizawa-cho, Kitasaku-gun, Nagano. In addition
to using the solar power generation of a conventional energy-saving residence to charge aprivate EV, power will be discharged at specific times to obtain surplus electric power. Thissurplus electric power will be supplied to the Docomo Shop Karuizawa store operated by
CCD to realize electric power interchange.
The electric power interchange will be used to stabilize ENNET ’s electric power supply bydischarging a fixed amount of electricity from the EV during specified times when the amountof power generated by solar power generation decreases
The conventional energy-saving residence used in this field trial is in a cottage area and isalso positioned as a demonstration assuming electric power interchange from public
facilities, etc. with low usage rates because there are periods when it is unoccupied onweekdays.
In future, in addition to working with local governments to promote similar initiatives, theknowledge obtained in this field trial will be utilized to contribute to the creation ofenvironmentally friendly communities with local production for local consumption that arehighly resilient to disasters.

Background
Amid international moves to reduce CO 2 emissions, Japan is also required to proceed withadditional decarbonization efforts.
Furthermore, natural disasters such as typhoons have intensified in recent years, and alocal production for local consumption energy system in which comparatively small power
generation facilities are distributed near where energy is consumed to supply electric power
are believed to be an efficient way of achieving decarbonization and increasing resilience tonatural disasters.
In order to provide a local production for local consumption power supply such as this, it isbelieved to be important to create a mechanism for the interchange of surplus electric powerfrom solar power generation to users in the local community by combining solar power
generation that has already become widespread with EVs that are expected to become
widespread as mobile rechargeable batteries.
Implementation period
March 31, 2020 to March 31, 2021 (scheduled)
Implementation site
Conventional residence in Karuizawa-cho, Kitasaku-gun, Nagano
SMART V2H
An EV power conditioner manufactured by Mitsubishi Electric Corporation. It is a power
conditioner that can simultaneously use solar power generation, EV and grid electricity, andcan be remotely controlled to charge and discharge power on the EV. Using this function, theelectricity charged in the EV will be discharged are specific times by remote con trol to be
utilized in to stabilize ENNET’s power supply.
Electric power interchange
The mutual provision of electric power. In this field trial, the electric power from theconventional energy-saving residence is provided

to the Docomo Shop Karuizawa Store bycontrolling EV charging and discharging using information on the power consumption within
the residence, solar power generation and the EV charging volume obtained using thecommunication function of SMART V2H, and discharging a fixed amount of el ectricity atspecific times.
The role of the electric vehicles (EV)EVs are utilized as large rechargeable batteries to realize electric power interchange. The
battery capacity of the EV used in this field trial is 30kWh.

Roles of the companies
MIRAIT Corporation- Evaluation and project management of the trial- Installation of the solar power generation facilities and SMART V2H in the conventionalenergy-saving residence- Evaluation of the system for realizing electric power interchange at spe cified times
ENNET Corporation- Purchase of surplus electric power from the conventional energy-saving residence- Supply of surplus electric power purchased from the conventional energy-saving residence
to the Docomo Shop Karuizawa StoreCCD Co., Ltd. (Docomo Shop Karuizawa Store)- Purchase of surplus electric power from the conventional power-saving residence through
ENNET- Reduction of CO 2 emissions associated with business activities by utilizing renewableenergy