October 23, 2023

Perovskite Solar Panel Installation on Warehouses to be Tested by JGC andPartners– First domestic testing of next-gen solar cells to be conducted in Hokkaido –JGC Holdings Corporation
Tomakomai Futo Co., Ltd.

EneCoat Technologies Co., Ltd.
JGC Holdings Corporation (Representative Director, Chairman and CEO: Masayuki Sato; “JGC HD”)
domestic EPC operating company JGC Japan Corporation (Representative Director and President:

Shoji Yamada; “JGC Japan”), Tomakomai Futo Co. Ltd. (Representative Director and President: TakaoKaizu; “Tomakomai Futo”), and EneCoat Technologies Co. Ltd. (President and CEO: Naoya Kato;“EneCoat Technologies”) have announced that we will jointly test perovskite solar panel installation
on warehouses and similar buildings in the city of Tomakomai, Hokkaido starting in 2024. The
panels consist of next-generation solar cells developed by EneCoat Technologies. It will be the first
domestic verification testing at a site used in the logistics sector, where warehouses, silos, andsimilar facilities are used. New methods of installation on roofs and walls will be developed anddemonstrated.

This project also represents the first testing toward practical adoption of perovskite solar panels in
Hokkaido, which will yield data applicable to cold-climate installation.
1. Project background
Having developed perovskite solar cell materials and deposition technologies to date, Kyoto

University startup EneCoat Technologies successfully developed highly efficient thin-film perovskite
solar cells with a module conversion efficiency of 19.4% in April this year. The company participatesin projects supported by the Green Innovation Fund, a government program seeking carbon
neutrality by 2050.

JGC Japan was among the first companies in Japan to venture into solar power in 2012 and is now
one of the country's most experienced contractors in renewable power plant construction. For
perovskite solar cells as well, the company has invested in EneCoat Technologies and intends tocombine their work with JGC engineering technologies refined over many years to contribute to
the development of construction methods and power generation systems that can help accelerate
widespread adoption.

Logistics company Tomakomai Futo supports Hokkaido's industries and livelihoods through a
combination of some of the prefecture's largest facilities (concentrated at the largest international
trading port in northern Japan) and professional expertise backed by extensive experience andknowledge. Through the company's medium-term management plan announced in 2022,

Tomakomai Futo supports decarbonization and recycling in society as one of its corporate missions.
The three companies have decided to take on joint testing in Tomakomai to support accelerated
widespread adoption of perovskite solar cells.

2. Project overview
Starting in early spring 2024, thin-film perovskite solar cells will be installed on uneven roofs andexterior walls mainly used in warehouses and other buildings in logistics operations of Tomakomai
Futo. Testing over the course of roughly one year will focus on the following three points.
・

Measured power generation efficiency, compared to estimates・

Durability where panels are subjected to snow and salty air

・

Methods of installing solar battery modules on existing warehouse roofs and curved building

surfaces

Although the city is often cloudy, this presents an opportunity to capitalize on the low-light
performance of perovskite solar cells. It also presents a suitable environment for testing becausetemperatures vary widely here but there is relatively little snow for a city in Hokkaido. Moreover,Tomakomai Futo facilities face a humid port with salty air, which also provides an opportunity totest the panels where the environment can be considered suboptimal.

Widespread adoption of perovskite solar cells will depend on further cost reduction, and the new
methods of installation to be tested are intended to make deployment more economical.

Perovskite solar cell developed by EneCoat Technologies

Warehouse owned by Tomakomai Futo

3. Future development
In establishing ways to install perovskite solar panels on warehouses and a variety of otherbuildings, JGC Japan, Tomakomai Futo, and EneCoat Technologies hope to contribute to carbon

neutrality by expanding this solar power source to logistics hubs across the country.
Roles of the three companies
JGC Japan• Demonstration planning• Installation, measurement, analysis and technical assessmentof perovskite solar panels• Development of a power generation system for operations atwarehouses, etc.

Tomakomai Futo• General arrangements, provision of installation sites

EneCoat Technologies• Provision of perovskite solar panels; analysis and technicalassessment

This demonstration is based on results obtained from a projectsubsidized by the New Energy and Industrial Technology
Development Organization (NEDO).

For reference
Perovskite solar cells
Perovskite solar cells are next-generation solar cells that use a crystal structure called perovskite.
Compared to silicon solar cells(1) "Thinner, lighter, and more flexible," which allows for a wider range of locations for installation.
(2) Better power generation performance even under low illumination.
(3) There is a possibility of mass production and lower manufacturing costs through thedevelopment of manufacturing technology.

(4) In addition to being a Japan-originated technology, about 30% of the world's production ofiodine, the main raw material, is produced in Japan.

These characteristics are expected to make it highly competitive against silicon-based solar cells.
Related JGC Holdings release
Developing Next-generation Solar Cells through the CVC Fund Investment in EneCoat Technologies| News Releases 2022 | JGC Holdings Corporation (jgc.com)

Media inquiries
JGC Holdings Corporation

Akihiro Yamagami / Masayuki Date
Corporate Communication Group, Strategic Planning Unit

Tel: +81-45-682-8026

Email: yamagami.akihiro@jgc.com, date.masayuki@jgc.com
Tomakomai Futo Co., Ltd.

Hideyuki Watanabe / Takayuki Sugimura

Corporate Planning & Coordination Department
Tel: +81-144-33-6161

EneCoat Technologies Co., Ltd.

Tatsunori Okuyama

Public Relations Department
info@enecoat.com