Ampt bags order for DC optimisers at co-located 600MWh battery storage project

LinkedIn
Twitter
Reddit
Facebook
Email

Power conversion technology provider Ampt has received an order for its String Optimizers to power a large solar-plus-storage plant with an energy capacity of 600MWh in California.

The Colorado-based firm will provide its Ampt String Optimizers to connect the PV system to 600MWh of energy storage through a shared DC bus. The plant will supply power to the California grid operated by the California Independent System Operator (CAISO).

The nameplate power of the solar PV array is 380MW, making this the company’s largest project order to-date. In July, it delivered 240MW of its String Optimizers to Latin America’s largest solar-plus-storage project in Chile, as reported by Energy-Storage.news’ sister site PV Tech.

Ampt String Optimizers are DC/DC converters that improve system performance by applying maximum power point tracking (MPPT) to each string of PV modules and then delivering that full power at a high and fixed voltage, whereas other systems suffer from a variable and lower voltage, the company claimed.

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

Not ready to commit yet?
  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

It added that this reduces the requirements of entire systems, which then lowers the costs of electrical components such as cables, battery converters and inverters, and that the predictable DC bus voltage also simplifies battery and inverter controls to improve grid responsiveness of the power plant assets.

Read Next

September 17, 2025
South Korean battery and electronics materials manufacturer Samsung SDI debuted its new battery energy storage system (BESS) products at the RE+ trade show in Las Vegas, US.
September 12, 2025
Dutch BESS operator Return has acquired four ready-to-build (RTB) projects in Germany, while agrifood tech and renewables investor N2OFF has added BESS to a solar project it is developing there.
September 11, 2025
Hithium has announced its lithium-ion and sodium-ion battery energy storage system (BESS) for supporting data centres, while Storion Energy has secured its first vanadium electrolyte customer.
September 11, 2025
A flurry of large-scale BESS project news in the US from four major developer-operators, coinciding with the country’s largest clean energy trade show RE+.
Premium
September 11, 2025
US sodium-ion battery firm Natron Energy has ceased trading, putting an end to its two domestic gigafactories. The news points to the challenges for battery chemistries hoping to compete with LFP, analysts told Energy-Storage.news.

Most Popular

Email Newsletter