Product
NGK Receives Order for NAS Batteries Intended for Energy Storage Facility of SALA ENERGY
July 07, 2023

Although further introduction of renewable power generation, including solar and wind power, is anticipated as part of efforts to achieve carbon neutrality, the fact that the amount of power generated is affected by seasons and weather presents a challenge for renewable energy. Furthermore, managing the tightening supply and demand of electrical power due to factors such as climate change has become a social issue. Charging and discharging batteries for grid storage in line with supply and demand for electrical power can help to solve these issues.
NAS batteries are used in various applications including stabilization of renewable energy, electric power demand and supply balancing, and emergency power sources. They have so far been installed in over 250 locations worldwide and have a stable operational track record of more than 20 years. NGK will continue to meet the demand for large capacity storage batteries, such as those for grid storage, strive to promote the spread of renewable energy and stabilize the supply and demand for electrical power, while helping to realize a carbon-neutral society.
Overview of the Ordered NAS Battery
Installation site | SALA Hamamatsu Storage Station (Hamamatsu City, Shizuoka Prefecture) |
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Capacity | 69,600 kilowatt-hours (69.6 megawatt-hours) |
Units installed | 48 (container type) |
Applications | Adjustment to supply and demand for electrical power, and provision of electrical power to capacity markets, supply and demand adjustment markets, wholesale markets and others |
Start of construction | July 2023 |
Start of operation | Spring 2026 (planned) |
About NAS batteries
NAS batteries are a megawatt class large-capacity storage battery, implemented practically for the first time in the world by NGK. The batteries feature large capacity, high energy density (compact), and long life, and can provide a stable supply of electric power with a high output over long periods of time. They have been installed at over 250 locations worldwide, with a total output of over 720,000 kW (720 MW) and total capacity of approx. 5.0 million kWh (5,000 MWh) installed. They are used for various applications, including peak cutting through load balancing and emergency power supply, as well as stabilization of renewable energy and construction of smart grids, thereby contributing to reduced environmental load and realization of carbon neutrality. NAS batteries have obtained the certification based on stationary storage battery safety standard UL 1973 (cell and module level) and a test report based on UL 9540A standard*3, which is to verify batteries and storage battery systems fire risk, for confirming compliance with its evaluation criteria (cell, module and installation level) through the evaluation program of UL Solutions, a global independent safety science company.
Product information on NAS batteries
- *1Arbitrage: Trading activity in which electricity is stored in the batteries when wholesale electrical power market prices are low and discharged when prices are high. This trading activity seeks to reduce the cost of procuring electrical power.
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*2Project to Support the Introduction of Storage Battery Systems and Water Electrolysis Equipment for Power Grids (Revised Budget FY2022):
A project that subsidizes a portion of the costs for business operators who introduce storage batteries or water electrolysis equipment resources for power grids that enable the absorption of excess renewable energy and provision of alignment capabilities through such means as trading in various electrical power markets, with the goal of increasing the use of and expanding the introduction of renewable energy in order to achieve the energy mix of 2030 and carbon neutrality in 2050. - *3NAS batteries container type (including the single batteries and modules on mounted) are covered.
NAS and the NAS logo are trademarks of NGK INSULATORS, LTD., registered in the U.S. and other countries.