Aisin Thai Automotive Casting Co., Ltd. (Aisin Group) and Constant Energy / Shizen Energy execute a Corporate PPA for a first solar rooftop in Thailand

Constant Energy, in a joint venture with its Japanese partner Shizen Energy, is pleased to announce that it has executed a long-term Power Purchase Agreement for a first rooftop-based solar PV plant with Aisin Thai Automotive Casting, a joint venture between Aisin Seiki Co., Ltd. (Japan) and Toyota Tsusho (Thailand) Co., Ltd. This solar rooftop project is located in Kabinburi Industrial Zone, in Prachinburi province.

2020年10月29日 - タイ。Constant EnergyはJVパートナーである自然電力と共に、アイシン精機株式会社とToyota Tsusho (Thailand) Co., Ltd.の合弁会社であるAisin Thai Automotive Casting社(以下、「ATAC」)とは初となる屋上屋根置き太陽光設備を導入する長期電力供給契約(PPA)を締結しました。本太陽光プロジェクトは、プラチンブリ県のカビンブリ工業団地に位置します。

Franck Constant, President of Constant Energy commented: “We are very pleased and honoured to establish a long-term partnership with a premier industrial house such as Asin Thai Automotive Casting which is an affiliate of Aisin Group, a leading company for manufacturing components worldwide for automotive. We look forward to supporting a combined reduction in CO2 emission and electricity cost through this solar power plant.”

Constant Energyの創業者兼CEOであるFranck Constant氏は、「自動車部品を世界規模で供給するトップ企業であり、アイシングループのATACと長期的なパートナーシップを構築できたことを大変嬉しく、光栄に感じています。太陽光発電を通じて、CO2排出量の削減および電気代削減に寄与できることを楽しみにしています。」と述べました。

“Construction will start immediately as pre-construction permitting requirements have already been completed prior to PPA signing, as part of our fast-track development process. We are also pleased to expand our investment partnership with Shizen Energy further. We look forward to providing clean and low-cost energy to Aisin Group in 2021”, Mr. Constant added.


Hiroki Koga, General Manager at Shizen Energy added: “We are very pleased to execute a contract with Asin Thai Automotive Casting. Despite travel restrictions, we supported the PPA discussion effectively via remote working practices. This is first step of our long-term relationship. From 2021, our country manager for Thailand, Rei Ushikubo, will relocate to Thailand to follow-up with customers more closely. We hope to contribute to the Aisin Group’s “Low-Carbon society” as environmental target and RE transition.”


About Constant Energy
Constant Energy is a renewable electricity generation and storage investment platform which invests in and manages high-quality power assets in selected countries. As a solar developer and Independent Power Producer (IPP), we develop, design, finance, build, own and operate utility-scale and large industrial rooftop-based solar PV power plants. Regionally headquartered in Bangkok, Constant Energy operates in Asia with a primary focus in Southeast Asia. We produce clean and reliable electricity to our clients for the long term, enabling them to reduce their energy bill, increase profitability and enterprise value while focusing on their core business activities. More information at

Constant Energyについて
Constant Energyは、複数の国において高品質の発電設備への投資と運営を行う、再生可能エネルギー発電所と蓄電池への投資プラットフォームである。太陽光発電所の開発・設計・資金調達・建設・所有・運営を行う独立系発電事業者(IPP)として、メガソーラーおよび大規模な工業用屋上設置型太陽光発電所の開発・設計・建設・運営を行っている。専門性と経験豊富なチームが、長期的な見通しを見据えて各国の発電所を直接管理している。

About Shizen Energy Inc.
Founded in June 2011 with the mission of “We take action for the blue planet“, the Shizen Energy group has contributed to the development of approximately 1 GW (as of Sep 2019) worth of renewable energy across Japan. Shizen is engaged in all services required for the installation and operation of solar, wind, small hydroelectric, and other renewable energy power plants, such as development, EPC (engineering, procurement, construction), O&M (operation and maintenance), electricity retail market, and asset management. The company intends to construct photovoltaic power plants in countries around the world, beginning with the regions of Asia and South America. More specifically, Shizen has operating renewable projects in Brazil, Indonesia, Vietnam and Thailand. More information at

2011 年 6 月設立。「青い地球を未来につなぐ」を掲げ、日本全国でグループとして約 1 ギガワット(2020 年 9月末時点)の自然エネルギー発電事業に携わっている。太陽光・風力・小水力等の自然エネルギー発電所の設置・運営に必要な、開発・EPC(設計・調達・建設)・O&M(運営・保守)・アセットマネジメント・電力小売事業等、すべてのサービスを手掛けている。海外事業においては、ブラジル・インドネシア・ベトナム・タイにて再生可能エネルギー事業を運営している。

本社:福岡県福岡市中央区荒戸1-1-6 福岡大濠ビル3F/6F




About Aisin Thai Automotive Casting Co., Ltd.
Aisin Thai Automotive Casting was founded in September 2008 as a joint venture between Aisin Seiki Co., Ltd. (Japan) and Toyota Tsusho (Thailand) Co., Ltd. With a capital of 1,681 million baht located in Prachin Buri. With the simple yet powerful vision “To be success no. 1 Powertrain component company in ASEAN”, Aisin Thai Automotive Casting has become one of the leading manufacturers in of engine & transmission related parts in Thailand to support automotive production of well-known automobiles. More information at

ATACは2008年9月、アイシン精機株式会社とToyota Tsusho (Thailand) Co., Ltd.の合弁会社として設立。プラチンブリ県に位置し、資本金は1,681百万バーツ。「ASEAN地域においてパワートレイン部品製造のNo.1企業になること」をビジョンに掲げ、ATACはエンジンとトランスミッション関連の製造において、トップクラスの自動車メーカーの製造をサポートするトップ企業の一社となった。


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