NEWS

Yamabiko Corporation, in cooperation with Taiyo Kenki Rental Co., is conducting an experimental study of power supply at construction sites using the newly developed BESS type*1 "Shindaiwa 50kVA Multi-Hybrid Cube". This experimental study started in September 2024, and at that time we announced in a press release that our goal was to reduce CO2 emissions by approximately 70%*2. This time, after 96 days of operation, we have confirmed a reduction of approximately 90%*3 in CO2 emissions, exceeding the original target. With these results, the effectiveness of this system has been further clarified and is expected to contribute to further decarbonization on construction sites.

*1 BESS（Battery energy storage systems）
*2 Compared to running a stand-alone generator
*3 Based on estimates of 24-hour operation

When the weather is clear, this system stores excess solar power in storage batteries, eliminating the need for generator operation. When it rains, the system prioritizes power from the storage batteries and controls generator operation to a minimum. This maximizes the use of renewable energy and minimizes CO2 emissions. Compared to power supplied by the generator alone, the cost of diesel oil is reduced by approximately 89%, contributing to cost reduction.

Furthermore, the reduction of generator operating hours can be expected to have the following secondary benefits:
・Reduction of maintenance costs (less frequent oil and filter changes)
・Improvement of the working environment (less stress on site personnel because of reduced engine noise)enefits:

We will continue to improve the effectiveness of the system and contribute to the further decarbonization of construction sites based on the results of this experimental study.

■Yamabiko's Carbon Neutral Solution website
https://www.yamabiko-corp.co.jp/english/gogreen/top/id=15372 

■Past press releases about the multi-hybrid cube 
1) Yamabiko Launches Demonstration Operation to Reduce CO2 Emissions by 70% in Powering Temporary Office in Cooperation with Taiyo Kenki Rental 
https://yamabiko.g.kuroco-img.app/files/user/corporate/img/sustainability/carbon%20neutral/Yamabiko%20Launches%20Demonstration%20Operation%20.pdf

2) Multi-Hybrid Cube: Started demonstration tests with Giken Ltd
https://yamabiko.g.kuroco-img.app/files/user/corporate/img/sustainability/carbon%20neutral/Yamabiko%20launches%20demonstration%20test%20of%20the%20shindaiwa%C2%AE%20Multi-Hybrid%20Cube%2C%20a%20portable%20power%20generation%20system%20that%20contributes%20to%20carbon%20neutrality.%20.pdf 

【About Taiyo Kenki Rental】
We rent various equipment such as construction equipment, various industrial vehicles and machinery, and small machinery to construction sites and various event venues, with the aim of contributing to the urban development of local communities and the creation of a prosperous country in the future through rental.