Power Generation System Product List and Ranking from 45 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Power Generation System Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. ケネスエネルギー開発 Tokyo//Real Estate Developers
  2. Wave Energy Tokyo//Building materials, supplies and fixtures manufacturers
  3. 名晶興産 Aichi//Electrical equipment construction business
  4. 4 内外電機 Osaka//Building materials, supplies and fixtures manufacturers
  5. 5 動力 Aichi//Electrical equipment construction business
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Power Generation System Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Roof-mounted solar power electricity cost reduction simulation case insider information disclosure ケネスエネルギー開発
  2. Rental and lease of wires and cables (non-standard available) 名晶興産
  3. Comprehensive Catalog Standard Distribution Board 内外電機
  4. 4 Medium to large-scale solar power generation system "SOLAR SERIES" Wave Energy
  5. 5 Solar Power Generation System "SOLAR SPEC RMU" Wave Energy

Power Generation System Product List

1186～1200 item / All 1393 items

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[Case Study] Ogawa Elementary School

[Case Study] Ogawa Elementary School

As part of education, a display device has been installed! It shows learning slides about solar energy.

We would like to introduce a case of implementing a roof-leased solar power generation system [public property] at Ogawa Elementary School. We borrowed the roof of Ogawa Elementary School in Kamishinano District, Nagano Prefecture, and installed a solar power generation system with an output of 103.95 kW. We painted the installed roof surface to avoid the risk of roof repairs during the roof leasing period. At the same time, we introduced LED lighting to reduce power consumption. [Case Study] ■ Installation Date: January 2020 ■ Installation Location: Kamishinano District, Nagano Prefecture *For more detailed information about the case, please visit our company website. Feel free to contact us for more details.

  • Solar power generation equipment

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[PPA Solar Power Introduction Case] Improved demand values with peak cutting!

[PPA Solar Power Introduction Case] Improved demand values with peak cutting!

We felt that Shin-Etsu Food Industry Co., Ltd. is contributing to the community and the environment through CO2 reduction and local production and consumption of electricity.

We would like to introduce a case study of Shin-Etsu Food Industry Co., Ltd. implementing a solar power PPA with Aozora Electric. The company decided to install demand devices and began to consider reducing electricity costs. They made efforts such as introducing energy-efficient refrigerators and turning the power on and off according to electricity peaks, but felt they had reached their limits when they saw an article about Aozora Electric in a newspaper advertisement. With Aozora Electric, they could reduce purchased electricity by consuming the electricity generated themselves, and also improve demand values through peak cutting. They decided to implement it, believing that Aozora Electric was the only option to lower their demand peak. [Case Study] - Implementation Date: July 2019 - Location: Nagano City, Nagano Prefecture *Detailed information about the case study can be viewed on our company website. Sunjunior HP - https://www.sunjunior.co.jp/ For more details, please feel free to contact us.

  • Solar power generation equipment

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[Column] Advantages and Disadvantages of Solar Power PPA Business

[Column] Advantages and Disadvantages of Solar Power PPA Business

Key points to keep in mind to achieve implementation effects! Please check before signing the contract.

The PPA model, which allows the introduction of solar power generation systems without any investment, is currently attracting attention. In this column, we will explain the advantages and disadvantages of actually implementing it, comparing it with purchasing equipment or buying renewable energy power. Please take a moment to read it. 【Content Overview (Excerpt)】 1. Advantages of PPA (Third-party ownership model for solar power generation) 1. No initial investment required 2. No costs or effort needed for maintenance 3. Affordable access to renewable energy power 4. Contributes to CO2 reduction at facilities *For more detailed information, please visit our company website. Sun Junior HP - https://www.sunjunior.co.jp/ For more details, feel free to contact us.

  • Solar power generation equipment

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[Measures Against Rising Electricity Costs] Solve it with self-consumption solar power generation!

[Measures Against Rising Electricity Costs] Solve it with self-consumption solar power generation!

We will introduce self-consumption solar power generation, including the highly economical "self-investment model" and the "PPA model," which allows for the introduction of equipment without cost burden.

◆Self-Investment Model This model allows customers to purchase their own solar power generation system. Since the electricity generated can be used for free, the cost-effectiveness is maximized. - The reduction in running costs is maximized as the generated electricity can be used for free. - The value of reducing environmental impact can be utilized. - It is eligible for various preferential measures such as special depreciation and reductions in property tax. ◆PPA Model This is a method of installation that provides a self-consumption type solar power generation system at no cost. By lending the facility's roof to the power plant owner for free, there are no costs associated with maintenance, removal, or equipment, allowing for the use of clean electricity. - The only cost incurred is for the electricity used, with no basic fees. - There are no installation or maintenance costs. - You can use 100% clean electricity generated from the roof. - Monitoring information can be visualized and used for facility promotion. - If you feel the benefits are significant, it is possible to purchase the equipment midway. Implementing a self-consumption type solar power generation system requires various specialized considerations, such as securing generation capacity and matching it with consumption levels. We apologize, but there may be facilities where installation is not recommended. Please inquire first about the feasibility of installation.

  • Solar power generation equipment

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Web Seminar: How to Utilize Self-Consumption Solar Power Generation by Learning from Failure Cases

Web Seminar: How to Utilize Self-Consumption Solar Power Generation by Learning from Failure Cases

[Corporate WEB Seminar] Held on June 15 | Learning from Failure Cases: How to Utilize Self-Consumption Solar Power Generation

- The power procurement system required in the carbon-neutral era - How to introduce self-consumption solar power generation - The mechanism of self-consumption solar power generation systems - Failure case 1: "Analyzing power consumption is important" - Failure case 2: "Let's confirm the support system after installation" - Failure case 3: "Overcoming the hurdles of fundraising" - National systems that can be utilized for the introduction of self-consumption solar power generation will be explained in detail. ■ Recommended for Business owners who want to reduce electricity costs, general affairs managers/personnel Business managers aiming for carbon neutrality at their facilities Municipal carbon neutrality personnel *Participation from competing companies is not allowed. Thank you for your understanding in advance. ■ Overview Date: June 15, 2023 (Thursday) Time: 15:00 - 16:00 Venue: Online Webinar Participation fee: Free ■ Speaker introduction Hiroki Nishihara, CEO of Sun Junior Co., Ltd. ■ How to participate Please apply through the inquiry form linked above and join using the Zoom URL provided in the confirmation email. *If you wish for a personal consultation, please include your consultation details and preferred date and time.

  • Solar power generation equipment

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[Case Study] Saku Asama Agricultural Cooperative

[Case Study] Saku Asama Agricultural Cooperative

Introduction of a case where a solar power generation system was implemented using a self-investment model, resulting in significant reduction of electricity costs.

We spoke with the Saku Asama Agricultural Cooperative about the purpose and effects of introducing a solar power generation system. They had been considering the introduction of a solar power generation system as a measure against rising electricity costs and for environmental conservation. By harnessing solar energy to generate electricity, they aimed to reduce electricity costs and decrease CO2 emissions. At the branches where the solar power generation system was implemented, monthly electricity costs decreased significantly compared to branches that did not adopt the system. [Case Summary] ■Challenges - Reduction of electricity costs and CO2 emissions ■Results - Monthly electricity costs decreased *For more details, please refer to the PDF document or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)
  • Solar power generation

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[Case Study] Special Nursing Home Sonosato

[Case Study] Special Nursing Home Sonosato

Introduction of cases where electricity is generated using renewable energy, resulting in reduced electricity costs.

We spoke with the Sato Special Nursing Home about the purpose and effects of introducing a solar power generation system. While the recent surge in electricity costs has had an impact, the appeal of implementing a solar power generation system lies in the ability to generate electricity using the natural energy of the sun, contributing to the SDGs as well. As a result of the implementation, we have been able to reduce our monthly electricity costs by nearly half, and we have received feedback stating, "We were very surprised by the effectiveness of the implementation." [Case Overview] ■ Challenges - Reducing electricity costs - Contributing to the SDGs ■ Results - Reduced monthly electricity costs by nearly half *For more details, please refer to the PDF document or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)
  • Solar power generation

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[Case Study] Shin-Ei Resin Co., Ltd.

[Case Study] Shin-Ei Resin Co., Ltd.

Introduction of a case that reached a power generation of 9718.2 kWh within three months of installing a self-investment type solar power system.

We spoke with Shin-Ei Resin Co., Ltd. about the purpose and effects of introducing a solar power generation system. They have been struggling with a sharp rise in electricity costs since 2022, making it necessary to implement long-term measures to reduce electricity expenses. In just three months after the introduction of the solar power generation system, they achieved a generation of 9,718.2 kWh and a reduction of 4.46 tons of CO2 emissions. [Case Summary] ■Challenges - Reducing electricity costs ■Results - Generated 9,718.2 kWh in three months - Reduced CO2 emissions by 4.46 tons *For more details, please refer to the PDF document or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)
  • Solar power generation

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[Column] What is Self-Consumption Solar Power Generation? Introducing Benefits and Precautions

[Column] What is Self-Consumption Solar Power Generation? Introducing Benefits and Precautions

Benefits and considerations of self-consumption solar power generation! Please be sure to check before signing a contract.

Recently, there has been a significant increase in interest in "self-consumption solar power generation," and its implementation in companies is being actively pursued. This trend is driven not only by the demand for reducing CO₂ emissions for environmental protection but also by the substantial benefits it offers, such as lowering electricity costs and providing measures against power outages during disasters. However, it is also important to be aware of certain considerations when implementing this technology. In this column, we will clearly explain the types of self-consumption solar power generation, its advantages, and points to be cautious about. We encourage you to read it. [Content Overview (Excerpt)] - What is self-consumption solar power generation? - Differences between self-consumption and full-feed-in tariff systems - Benefits of implementing self-consumption solar power generation - Considerations when implementing self-consumption solar power generation *For detailed content of the column, please visit our company website. Sun Junior HP - https://www.sunjunior.co.jp/blog/12444/ For more information, please feel free to contact us.

  • Solar power generation equipment

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[Case Study] Selva Co., Ltd.

[Case Study] Selva Co., Ltd.

Introduction of cases where successful measures were taken to reduce the basic electricity charges through demand response.

We spoke with Selva Co., Ltd. about the purpose and effects of introducing solar power generation. To actively work towards carbon neutrality and energy conservation by utilizing the abundant sunlight, they have implemented a self-consumption solar power generation system with a self-owned model. [After introducing solar power generation] - Successfully reduced electricity costs by 15% compared to the previous year through reductions in both basic electricity fees and electricity usage. - Contributed to the reduction of greenhouse gases such as carbon dioxide. *For more detailed information about this case, please refer to the related links. For more details, please check the PDF materials or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

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[Case Study] Kawakubo Rice Co., Ltd.

[Case Study] Kawakubo Rice Co., Ltd.

Introduction of examples where the power generation status and CO2 reduction status can be seen in a timely manner, allowing for a tangible sense of efforts to mitigate global warming.

We spoke with Kawakubo Rice Co., Ltd. about the purpose and effects of introducing solar panels. In an effort to contribute to the mitigation of global warming and to aim for a sustainable company, they have implemented a self-consumption solar power generation system as a clean energy solution that does not emit carbon dioxide. [Reasons for introducing solar power generation] ■ To counteract rising electricity costs ■ To contribute to the reduction of carbon dioxide emissions and mitigate global warming ■ To aim for a sustainable company *For more detailed information about this case, please refer to the related links. For further details, please check the PDF materials or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

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[Case Study] Wakayayu Association Social Welfare Corporation

[Case Study] Wakayayu Association Social Welfare Corporation

Introduction of a case where electricity can be used for three days during disasters or power outages due to the introduction of solar power generation and storage batteries.

We spoke with the Wakayuu Association about the purpose and effects of introducing solar panels. They prioritized considerations for disasters and power outages and implemented a self-consumption solar power generation system with a storage battery system. This allows for electricity usage for up to three days during power outages, and it is also expected to serve as a refuge for local residents during disasters and outages. 【Challenges at the time of solar power introduction】 ■ We want to take measures to ensure electricity can be used during disasters and power outages. ■ We want to utilize it as a refuge for local residents during disasters and power outages. *For more detailed information about this case, please refer to the related links. For more details, please check the PDF materials or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

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Shinano Kaso Co., Ltd. | Truck Body Construction and Repair | Solar Power Installation Case Study

Shinano Kaso Co., Ltd. | Truck Body Construction and Repair | Solar Power Installation Case Study

Introduction of cases where electricity cost reduction is being experienced through monitoring.

We spoke with Shinano Kasou Co., Ltd. about the purpose and effects of introducing solar power generation. In response to the recent surge in electricity costs and to make effective use of the abundant sunlight, they implemented a self-consumption type solar power generation system with the aim of contributing to the revitalization of the local Nagano Prefecture by introducing solar power generation from a local company. 【Experience of Introducing Solar Power Generation】 - By installing a monitor to view the power generation amount at the office reception, they find it enjoyable to easily grasp the power generation amount while working on reducing electricity costs. - They were able to contribute to the revitalization of the Nagano Prefecture. *For more details on this case study, please refer to the related links. For more information, please check the PDF materials or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

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Miraisai Welfare Association Co., Ltd. | Nursing Care Business | Solar Power Generation Implementation Case

Miraisai Welfare Association Co., Ltd. | Nursing Care Business | Solar Power Generation Implementation Case

Introduction of a case where high electricity bills were resolved with solar power generation.

We spoke with Miraisai Welfare Association about the purpose and effects of introducing solar power generation. To reduce environmental impact, they implemented a self-owned model of a self-consumption solar power generation system. [After introducing solar power generation] - No longer worried about electricity costs - Contributed to SDGs activities by working on reducing environmental impact *For more details on the case, you can view it through the related links. For more information, please refer to the PDF document or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

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Maria Children's Garden | Education Industry | Case Study on Solar Power Introduction

Maria Children's Garden | Education Industry | Case Study on Solar Power Introduction

Introduction of cases where solar energy is used to deliver school lunches, connecting to a bright future.

We spoke with Maria Children's Garden about the purpose and effects of introducing solar power generation. As an initiative to connect to a brighter future for the children, they have implemented a self-owned model of a self-consumption solar power generation system. 【After introducing solar power generation】 ■ Contributed to society through initiatives that connect to a brighter future, even if just a little ■ Resolved concerns about electricity costs during the summer *Detailed information about the case can be viewed through the related links. For more details, please refer to the PDF materials or feel free to contact us.

  • Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

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