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  6. [Case Study] Approximately 1,000 square meters of idle land generates an annual income of about 160 million yen.

[Case Study] Approximately 1,000 square meters of idle land generates an annual income of about 160 million yen.

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last updated:Aug 31, 2026

ケネスエネルギー開発
ケネスエネルギー開発
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Introducing a case where a system battery was installed on approximately 1,000 square meters of idle land, generating an annual revenue of about 160 million yen.

【Grid-Connected Battery / Case Study】 Installed a grid-connected battery on idle land, generating approximately 160 million yen in annual revenue. Successfully transformed idle land into "an asset that generates income." <What was achieved on this land> ■ Location: Shibushi City, Kagoshima Prefecture ■ Output/Capacity: 2MW / 8MWh ■ Land Area: Approximately 1,000 square meters (about 300 tsubo) ■ Land Condition: Idle land ■ Estimated Investment: Approximately 300 to 350 million yen ■ Estimated Annual Revenue: Approximately 160 million yen ■ Expected Return Rate: Approximately 14 to 16% ■ Investment Recovery Period: Approximately 3 to 4 years <This case is recommended for such land and companies> ✓ Own land that is not being used by the company ✓ Looking for ways to utilize idle land ✓ Considering land use options other than sale or rental ✓ Interested in grid-connected batteries but unsure where to start ✓ Want to know if a battery business can be established on company-owned land

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[Case Study] Approximately 1,000 square meters of idle land generates an annual income of about 160 million yen.

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  • Official HP (Kenneth Energy Development Co., Ltd.)
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<Challenges Before Introducing Energy Storage> ■Challenge 1: Issues Related to Land and Trust Since the business entity was a foreign company, it was difficult to gain the trust of landowners and local stakeholders, making it challenging to acquire land and advance the project. ■Challenge 2: Coordination with Multiple Stakeholders Many stakeholders were involved, including energy storage, PCS, EMS/communication, substation equipment, and construction companies. The coordination of specifications, delivery dates, and responsibilities became complex. ■Challenge 3: Establishing a System to Operate the Business Domestically Operating the business solely as a foreign entity posed high risks, necessitating the establishment of a business framework and contract scheme that included domestic companies. <What We Did (Scope of Response)> - Support for land-related coordination and negotiations - Building a framework and designing contract schemes with domestic companies - Specification adjustments and procurement support with energy storage manufacturers - Coordination related to PCS, EMS/communication, and substation equipment - Design (basic and detailed design) - Construction (electrical, civil, and equipment) - Process management, quality control, and safety management - Overall project oversight as an EPC <Result> Achieved land acquisition, stakeholder coordination, and optimization of equipment specifications that would have been difficult for a foreign entity alone. Successfully launched a project that generates stable revenue from idle land.

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1. Land area Guideline: 1,000 square meters or more (subject to change based on conditions) 2. Location and use of the land Urbanization control area / industrial area / idle land, forest, etc. 3. Grid connection conditions Possibility of high voltage / extra high voltage connection (grid capacity, distance, etc.) 4. Business viability Estimate investment amount, annual accumulation, yield, payback period, etc. 5. Subsidies Check for the availability and conditions of any applicable subsidy or grant programs. Additionally, if you could provide photos, diagrams of the land, and its current use and status, we can individually verify and propose the potential for use as a grid-connected storage battery.

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【Solar Power and Battery Storage Construction Achievements】 Total construction cost of 969.9 billion yen, with 116 solar power plants built over 12 years. 【Clients】 Sharp, Panasonic, Daiwa House, Nomura Securities, Mitsubishi HC Capital, JA Mitsui Leasing, DMM.com, KKR, Macquarie Capital, Canadian Solar, Trina Solar, J Holdings, RE100 Power, Excelsior Japan, WindSmile, B&M Asset Management, AD Works, Sparks Asset Management, Etrion, and many other major companies.

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【Battery Storage/Case Study】Approximately 1,000 square meters of idle land generates an annual revenue of about 160 million yen.

【Battery Storage/Case Study】Approximately 1,000 square meters of idle land generates an annual revenue of about 160 million yen.

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[Achievements Introduction 2.0] Over 80 projects in the last 12 years with a total construction cost exceeding 900 billion yen! Solar power construction achievements!

[Achievements Introduction 2.0] Over 80 projects in the last 12 years with a total construction cost exceeding 900 billion yen! Solar power construction achievements!

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ケネスエネルギー開発

ケネスエネルギー開発

Real Estate Developers

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Kenneth Energy Development Co., Ltd. is a company aiming to promote renewable energy, operating in the following three main areas: 〇 Energy development business centered on solar power generation - Comprehensive support from planning, design, construction, to operation of rooftop and ground-mounted solar power plants - Assistance with connection negotiations with power companies and various permit applications, ensuring a smooth introduction even for first-timers 〇 Electrical equipment construction business - Handling a wide variety of electrical work, including new construction and renovation of commercial facilities and apartments - Broad coverage of all equipment, including lighting, air conditioning, emergency power supply, water supply and drainage, and gas piping 〇 Real estate and construction support business - Involved in infrastructure development and project support related to construction, leveraging a comprehensive construction system as a strength Additionally, many qualified professionals, such as electrical chief engineers and construction management engineers, are on staff, providing strong support for companies in their decarbonization efforts and cost reduction with high technical skills and reliable responsiveness. In the solar power-related business and real estate-related business, we can provide a wide range of support from project sourcing and investigation stages to execution stages such as EPC, tailored to your needs.

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