Shizen Energy (Fukuoka City), a renewable energy development and operation company, and Dynax (Chitose City, Hokkaido), an auto parts manufacturer, announced on October 11 that they have joined Participate in the PPA (power purchase agreement) model outside the enterprise using the Inauguration ceremony of a super solar power plant (large-scale solar power plant) was held.
Private road connecting solar power and factory
(source: Shizen Energy)
The Dynax Tomakomai plant in Tomakomai City, Hokkaido will be connected to Shizen Energy's newly built and owned nearby solar panels with a capacity of 3.85MW and from a solar power plant with connecting capacity 2.75MW grid to private line (6.6kV high voltage distribution line) to transmit and sell electricity. It went live on October 1. Both the factory and the solar super are located in the Tomakomai East Area Industrial Park, and the land is owned by Tomato (Tomakomai City, Hokkaido).
Scene of the opening ceremony
(Source: Nikkei BP)
In the "off-site PPA" model, in which electricity is sold to consumers from newly installed solar panels off the customer's premises, the electricity generated is typically transmitted through the commercial grid and charges revolving will be paid for the general transmission and distribution of electricity. However, in this case, Shizen Energy will install an indoor power line to transmit power from the newly installed solar power source outside the factory premises to the factory, eliminating the need for a cake fee. car.
Separate transformers and lines are installed nearby
(Source: Nikkei BP)
The large solar system consists of two sites, transmitting power separately to multiple Dynax plants along the way. The total length of private lines from the two locations to each factory is approximately 2.7 km and 49 new electric poles have been constructed. It is installed in a traffic space, which is dedicated to the construction of industrial infrastructure such as water, wastewater and gas pipelines.
Transmission of solar power to the factory via private lines
(source: Shizen Energy)
Annual generation capacity is expected to reach approximately 4.24 million kWh in the first year, which will cover approximately 12% of electricity usage at the Tomakomai plant. Each plant has a contract that prevents power from returning to the commercial grid, so they have built-in controls that block solar output when demand at the plant is less than the amount of solar power supplied, such as on holidays.
Nippon Benex (Isahaya City, Nagasaki Prefecture) is in charge of the design and construction of the power generation equipment, the solar panels are manufactured by JA Solar in China and the PCS are manufactured by Sunglo in China. Each of the two sites is equipped with Sanyo Denki PCS (10kW) with independent operation, and even if the commercial grid loses power, the two sites can provide a total capacity of up to 20kW. Ministry of Environment's FY 2021 Supplementary Budget for ``Subsidies for Carbon Dioxide Emissions Control Measures (projects to strengthen the regional renewable energy pillar and enhance resilience through the use of PPA, etc.) ''Renewable Energy Procurement Promotion Project" was selected.
Dynax recognizes that carbon neutrality in manufacturing processes is essential for auto parts manufacturers to survive in the future, and aims to reduce greenhouse gas emissions by 46% by 2030 compared to 2019 and achieve carbon neutrality by 2050.
In addition to using solar power through this self-powered linear PPA, the company is also promoting energy savings in the manufacturing process, rooftop solar installations and employee parking lots. pellets as well as using biomass heat. pursuing the goal of reducing greenhouse gas emissions by 39%.
