Sun Trinity Celebrates 5th Anniversary, Expanding Renewable Energy Business Centered on Corporate PPAs
Sun Trinity LLC has reached its 5th anniversary, having successfully built a 300 MW renewable energy development pipeline through corporate PPAs. Leveraging expertise from Sumitomo Corporation and Shikoku Electric Power, the company offers diverse solutions including on-site and off-site PPAs to meet corporate decarbonization needs. Sun Trinity aims to expand beyond scale, focusing on genuine emissions reduction and comprehensive Green Transformation solutions.
📋 Article Processing Timeline
- 📰 Published: April 1, 2026 at 22:00
- 🔍 Collected: April 1, 2026 at 16:47
- 🤖 AI Analyzed: April 17, 2026 at 03:37 (370h 49m after Collected)
Sun Trinity LLC (Headquarters: Chiyoda-ku, Tokyo; Representative: Toshiki Kashihara; hereinafter 'Sun Trinity') has recently celebrated its 5th anniversary. Since its establishment, backed by the electricity business knowledge and robust management foundations of Sumitomo Corporation and Shikoku Electric Power Company, Sun Trinity has consistently worked on developing and providing Corporate PPAs*1 that deeply align with our customers' management strategies.
Through these cumulative efforts, we have now built a development pipeline of approximately 300 MW, including operational projects, as well as projects currently under construction and those that are confirmed.
## ■ Building a Strategic Portfolio to Meet Diverse Needs
To meet the diverse decarbonization needs of companies, our company has focused on providing optimal renewable energy (hereinafter 'renewables') procurement schemes tailored to the specific requirements of each demand-side customer, without being confined to a particular scheme. Since our establishment, we have steadily accumulated efforts and a wide range of achievements in the following areas.
* **On-site PPA*2: Value Provision Through Reliable Implementation Capability**
We possess advanced expertise in a wide range of on-site PPA installation methods, from rooftop installations suited to the characteristics of factory, logistics, and commercial facility sites, to parking lot utilization (solar carports). Particularly in solar carports, we have built a leading track record, including promoting the largest comprehensive contracts in Japan. Backed by reliable execution capabilities, such as navigating complex administrative procedures for building permits and ensuring safe and appropriate construction management according to ground conditions and installation environments, we have brought many challenging projects to fruition.
Furthermore, depending on the customer's power usage patterns and self-consumption rates, we are also working on examining and implementing surplus power sales schemes and battery storage co-located systems. From the perspectives of peak shaving, grid constraint response, and maximizing electricity value, we are steadily promoting projects in accordance with each customer's specific conditions.
* **Off-site PPA*3: Realizing Strategic Power Source Procurement**
(Green Projects: New Power Sources)
Through the development of new power sources equipped with 'Additionality*5', which is emphasized in international initiatives (such as RE100*4), we provide value that contributes to achieving corporate decarbonization goals. Especially for demand-side customers who prioritize the quality of environmental value and the reliability of long-term renewable energy procurement, new power sources are highly regarded as a stable means of renewable energy procurement.
Furthermore, we support a wide range of supply schemes regardless of power source type, from large-scale extra-high voltage projects to 'bulk-type projects' that combine multiple low-voltage and high-voltage power plants to supply electricity, thereby expanding our stable supply record through advanced scheme construction capabilities.
(Brown Projects: Existing Power Sources)
We also establish a flexible supply system through off-site PPAs for renewable energy sources secured by purchasing existing FIT/FIP power plants (secondary projects). Existing power sources, which do not involve new development, allow for short-term initiation of renewable energy supply, making them an effective option for customers who prioritize early adoption of renewable energy and meeting annual targets. Furthermore, by utilizing the FIP scheme, we realize renewable energy supply at relatively reasonable price levels.
### Towards Maximizing Renewable Energy Value
In recent years, against the backdrop of rising renewable energy demand and changes in global conditions such as the materialization of geopolitical risks, uncertainties in the energy market, such as electricity price fluctuations and supply-demand tightness, have increased. In this environment, our company is working to maximize renewable energy value beyond mere electricity supply, by leveraging our accumulated expertise in power generation business and corporate PPA construction, utilizing battery storage, and responding to hourly matching*6 to align generation volume and demand on an hourly basis. Moving forward, while taking into account changes in market conditions and customer needs, we will promote the enhancement of power plant value by aiming to maximize flexible electricity supply and value provision.
## ■ Future Outlook: Towards Further Growth
We recognize that the approximately 300 MW development pipeline we have built to date is proof that our strategic proposal capabilities and reliable implementation capabilities have been valued in the market.
Going forward, our aim is not merely to expand in scale, but to become a professional group that leads customers to comprehensive solutions for their complex energy challenges through diverse GX (Green Transformation*7) solutions, in collaboration with the Sumitomo Corporation Group, Shikoku Electric Power Group, and partner companies, while maintaining genuine emissions reduction through Corporate PPAs as our core.
Term Explanations
*1 Corporate PPA
A mechanism where companies purchase electricity derived from renewable energy and environmental value from power generators under long-term contracts.
*2 On-site PPA
A form of Corporate PPA where power generation facilities are installed on the consumer's premises, and the electricity generated there is supplied directly.
*3 Off-site PPA
A form of Corporate PPA where power generation facilities are installed off the consumer's premises and electricity is supplied via the transmission network.
*4 RE100
An international initiative aiming for companies to source 100% of the electricity used in their business activities from renewable energy.
*5 Additionality
The creation of new environmental value or emission reduction effects that did not previously exist, such as through the establishment of new renewable energy sources.
*6 Hourly Matching
A concept to match electricity generation and demand on an hourly basis. It is a method to achieve decarbonization that is more aligned with reality, while addressing the variability of renewable energy.
Contact for inquiries regarding this matter
Sun Trinity LLC
Public Relations
E-mail：info@sun-trinity.com
TEL：03-6824-4938 (Main)
Through these cumulative efforts, we have now built a development pipeline of approximately 300 MW, including operational projects, as well as projects currently under construction and those that are confirmed.
## ■ Building a Strategic Portfolio to Meet Diverse Needs
To meet the diverse decarbonization needs of companies, our company has focused on providing optimal renewable energy (hereinafter 'renewables') procurement schemes tailored to the specific requirements of each demand-side customer, without being confined to a particular scheme. Since our establishment, we have steadily accumulated efforts and a wide range of achievements in the following areas.
* **On-site PPA*2: Value Provision Through Reliable Implementation Capability**
We possess advanced expertise in a wide range of on-site PPA installation methods, from rooftop installations suited to the characteristics of factory, logistics, and commercial facility sites, to parking lot utilization (solar carports). Particularly in solar carports, we have built a leading track record, including promoting the largest comprehensive contracts in Japan. Backed by reliable execution capabilities, such as navigating complex administrative procedures for building permits and ensuring safe and appropriate construction management according to ground conditions and installation environments, we have brought many challenging projects to fruition.
Furthermore, depending on the customer's power usage patterns and self-consumption rates, we are also working on examining and implementing surplus power sales schemes and battery storage co-located systems. From the perspectives of peak shaving, grid constraint response, and maximizing electricity value, we are steadily promoting projects in accordance with each customer's specific conditions.
* **Off-site PPA*3: Realizing Strategic Power Source Procurement**
(Green Projects: New Power Sources)
Through the development of new power sources equipped with 'Additionality*5', which is emphasized in international initiatives (such as RE100*4), we provide value that contributes to achieving corporate decarbonization goals. Especially for demand-side customers who prioritize the quality of environmental value and the reliability of long-term renewable energy procurement, new power sources are highly regarded as a stable means of renewable energy procurement.
Furthermore, we support a wide range of supply schemes regardless of power source type, from large-scale extra-high voltage projects to 'bulk-type projects' that combine multiple low-voltage and high-voltage power plants to supply electricity, thereby expanding our stable supply record through advanced scheme construction capabilities.
(Brown Projects: Existing Power Sources)
We also establish a flexible supply system through off-site PPAs for renewable energy sources secured by purchasing existing FIT/FIP power plants (secondary projects). Existing power sources, which do not involve new development, allow for short-term initiation of renewable energy supply, making them an effective option for customers who prioritize early adoption of renewable energy and meeting annual targets. Furthermore, by utilizing the FIP scheme, we realize renewable energy supply at relatively reasonable price levels.
### Towards Maximizing Renewable Energy Value
In recent years, against the backdrop of rising renewable energy demand and changes in global conditions such as the materialization of geopolitical risks, uncertainties in the energy market, such as electricity price fluctuations and supply-demand tightness, have increased. In this environment, our company is working to maximize renewable energy value beyond mere electricity supply, by leveraging our accumulated expertise in power generation business and corporate PPA construction, utilizing battery storage, and responding to hourly matching*6 to align generation volume and demand on an hourly basis. Moving forward, while taking into account changes in market conditions and customer needs, we will promote the enhancement of power plant value by aiming to maximize flexible electricity supply and value provision.
## ■ Future Outlook: Towards Further Growth
We recognize that the approximately 300 MW development pipeline we have built to date is proof that our strategic proposal capabilities and reliable implementation capabilities have been valued in the market.
Going forward, our aim is not merely to expand in scale, but to become a professional group that leads customers to comprehensive solutions for their complex energy challenges through diverse GX (Green Transformation*7) solutions, in collaboration with the Sumitomo Corporation Group, Shikoku Electric Power Group, and partner companies, while maintaining genuine emissions reduction through Corporate PPAs as our core.
Term Explanations
*1 Corporate PPA
A mechanism where companies purchase electricity derived from renewable energy and environmental value from power generators under long-term contracts.
*2 On-site PPA
A form of Corporate PPA where power generation facilities are installed on the consumer's premises, and the electricity generated there is supplied directly.
*3 Off-site PPA
A form of Corporate PPA where power generation facilities are installed off the consumer's premises and electricity is supplied via the transmission network.
*4 RE100
An international initiative aiming for companies to source 100% of the electricity used in their business activities from renewable energy.
*5 Additionality
The creation of new environmental value or emission reduction effects that did not previously exist, such as through the establishment of new renewable energy sources.
*6 Hourly Matching
A concept to match electricity generation and demand on an hourly basis. It is a method to achieve decarbonization that is more aligned with reality, while addressing the variability of renewable energy.
Contact for inquiries regarding this matter
Sun Trinity LLC
Public Relations
E-mail：info@sun-trinity.com
TEL：03-6824-4938 (Main)