Ampt Delivers 240 MW String Optimizers to Solar & Storage Project

Leading global DC optimizer Ampt announced the completion of its delivery to the largest solar+storage project in Latin America.

May 13, 2022. By News Bureau

Leading global DC optimizer Ampt announced the completion of its delivery to the largest solar+storage project in Latin America. The 240 MW solar power plant uses Ampt String Optimizers to link the PV system to 560 MWh of DC-coupled energy storage. The optimized system sets a new standard for using longer-duration storage in transmission-level applications.

“We are pleased to be part of this record-setting PV+storage power plant,” said Levent Gun, CEO, Ampt. “It truly sets the standard for transmission-level use of energy storage to enhance grid reliability while benefiting from the energy independence and lower cost of renewables.”

Situated in the Atacama Desert plateau, the PV+storage power plant is nestled in the heart of Chile’s mining industry, which needs a massive amount of power to function. The abundant sun and low temperatures of the high-altitude region make it an ideal location for efficiently producing solar energy. 

In order to maximize performance and attain the best economics, the 240 MW power plant makes use of Ampt String Optimizers to join the PV system to the energy storage system through a shared DC bus – commonly referred to as a “DC-coupled” architecture.

Ampt String Optimizers are DC/DC converters that are used in large-scale PV plants to lower the cost and improve the performance of DC-coupled solar+storage systems. With Ampt optimizers, power is delivered at a high and fixed voltage rather than the variable and lower voltage of systems without Ampt. 

The 240 MW power plant is noteworthy for its innovative technology as well as for the value streams delivered to various project stakeholders. Beyond supplying a clean, renewable source of energy to the copper mining operation, the PV+storage system relieves congestion on transmission lines while providing capacity firming to the network.

Essentially, the energy storage system enables the transmission operator to bypass the massive investment to enhance transmission infrastructure that would otherwise be required to transport excess solar energy from the remote desert location of the copper mine in the north to the high-demand areas in the center of Chile.

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