UltraBattery® is already being used around the world in projects that demonstrate its unique abilities in the area of stationary energy storage. UltraBattery® is particularly well suited to smoothing and shifting renewable energy, managing variability on electricity grids and optimizing diesel efficiency on standalone power systems.
PJM Interconnection (Pennsylvania, US)
Ecoult implemented an energy storage system that provides three megawatts (MW) of regulation services on the grid of PJM Interconnection. The PJM grid is the largest of 10 independent system operators (ISOs)/regional transmission organisations (RTOs) in the United States. The system is also used for peak demand management. Read more
PNM ‘Prosperity’ Project (New Mexico, US) – PV Smoothing and Shifting
PNM, the leading electric utility company in New Mexico, has integrated an Ecoult UltraBattery® Energy Storage Solution with a solar energy-generating farm. This is the first time that a solar energy storage facility in the United States has been fully integrated into a utility’s power grid.
The Prosperity project demonstrates smoothing and shifting of intermittent solar power, and the ability to use the combination of solar power and battery storage as a dispatchable, renewable resource.
Hampton Wind Farm (NSW, Australia)
Wind energy is clean and has the potential to supply many times the total current global energy production. However, although wind energy is reasonably predictable, it is significantly variable.
The ramp rate that can be associated with generation of wind energy can create challenges for electricity utilities, independent system operators (ISOs) and regional transmission organisations (RTOs) trying to integrate renewable energy into the grid. The ramp rate also limits progress by wind farm developers. Read more
Shimizu Corporation (Japan) – Microgrid
Furukawa Battery has set up a smart grid demonstration of UltraBattery® technology at Shimizu Corporation. The smart building application uses 163 Ultrabattery® Cells (500 Ah, 2 volts).
A ‘Battery Condition Watcher’ installed in the energy storage system monitors cell voltage, impedance and temperature.
Iwaki Factory (Japan) – Load Levelling
Furukawa Battery has set up a smart grid demonstration of UltraBattery® technology at their Iwaki factory. The load-levelling application involves 192 UltraBattery® cells, a 100-kW power conditioning system and a battery management system. The system was constructed to control the demand of electric power in their factory.
Furukawa began operational tests of the energy storage system in October, 2012. In their load levelling trial, they prescribed the time interval of battery discharge (at constant power). They found that they can effectively use up the batteries’ capacity, but cannot as yet control demand power effectively.
Maeda Area in Kitakyushu (Japan)
Furukawa Battery has set up a 300kW smart grid demonstration system of UltraBattery® technology in the Maeda area in Kitakyushu. The load levelling application uses 336 Ultrabattery® cells (1000 Ah, 2 volts).
Kitakyushu Museum of Natural History & Human History (Japan) – Facility Peak Shifting
Furukawa Battery has set up two smart grid demonstrations of UltraBattery® technology at Kitakyushu Museum of Natural History & Human History.
The first is a 10kW facility peak shifting application that uses 32 Ultrabattery® cells (100 Ah, 6 volts). The second is a 100kW facility peak shifting application that uses 192 Ultrabattery® cells (500 Ah, 2 volts).
Key Features and Benefits
Frequency Regulation Services
- UltraBattery® provides 3MW of regulation services on a United States electricity grid
Solar Energy Shifting and Smoothing
- An UltraBattery® storage system is integrated with a solar energy-generating farm in one of the United States’ largest combinations of photovoltaic energy and solar panel battery storage.
- UltraBattery® systems can smooth the intermittent wind signal, increasing the reliability of wind power