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Case Studies: Stationary

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.

Frequency Regulation Services

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

An Ecoult 3MW UltraBattery® storage system has been installed at PJM in a building and in shipping containers to demonstrate its flexibility.

An Ecoult 3MW UltraBattery® storage system has been installed at East Penn Manufacturing in a building and in shipping containers to demonstrate its flexibility.

This graph shows the signal received from PJM (blue line) and how accurately the UltraBattery® frequency regulation services system (orange line) responds to the PJM signal.

This graph shows the signal received from PJM (blue line) and how accurately the UltraBattery® frequency regulation services system (orange line) responds to the PJM signal.

Solar Energy Shifting and Smoothing

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.

Read more

The Prosperity project features one of the United States' largest combinations of photovoltaic energy and solar panel battery storage.

The PNM Prosperity project features one of the United States’ largest combinations of photovoltaic energy and solar panel battery storage.

UltraBattery® can monitor intermittent renewable energy output and absorb or release power within seconds to smooth the ramp rate of the output before presenting it to the grid.

UltraBattery® can monitor intermittent renewable energy output and absorb or release power within seconds to smooth the ramp rate of the output before presenting it to the grid.

UltraBattery® can store energy and discharge it later as required, allowing utilities to improve overall system performance at peak times.

UltraBattery® can store energy and discharge it later as required, allowing utilities to improve overall system performance at peak times.

Wind Smoothing

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

Ecoult’s trial wind smoothing project at Hampton Wind Farm (New South Wales, Australia) aims to demonstrate and optimise methods of applying UltraBattery® storage to constrain a 5-minute ramp rate of renewable output before presenting it to the grid.

Ecoult’s trial wind smoothing project at Hampton Wind Farm (New South Wales, Australia) aims to demonstrate and optimise methods of applying UltraBattery® storage to constrain a 5-minute ramp rate of renewable output before presenting it to the grid.

UltraBattery® technology can limit the 5-minute ramp rate to 1/10 of the raw output, while applying storage with a usable capacity (in kWh) that is 1/10 the rated output of the farm (in kW).

UltraBattery® technology can limit the 5-minute ramp rate to 1/10 of the raw output, while applying storage with a usable capacity (in kWh) that is 1/10 the rated output of the farm (in kW).

Commercial Buildings

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. 

Energy Storage for Commercial Building at Shimizu Corporation

Energy Storage for Commercial Building at Shimizu Corporation

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.

Commercial Building Energy Storage at Furukawa's Iwaki Factory

Commercial Building Energy Storage at Furukawa’s Iwaki Factory

Community Energy Storage

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).

Community Energy Storage Project in Maeda, Kitakyushu

Community Energy Storage Project in Maeda, Kitakyushu

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).

10kW Energy Storage Systems for Facility Peak Shifting

10kW Energy Storage System for Facility Peak Shifting

100kW Energy Storage System for Facility Peak Shifting

100kW Energy Storage System for Facility Peak Shifting

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.

Wind Smoothing

  • UltraBattery® systems can smooth the intermittent wind signal, increasing the reliability of wind power