The new product has a maximum wattage of 725 W, a maximum current of 22 A and a maximum efficiency of 99.6%.
US-based DC power optimizer technology provider Tigo Energy has unveiled a new optimizer for high-power modules at the Key Energy trade show in Rimini, Italy.
“The TS4-A (725 W) optimizer is an evolution of the previous generation that supported up to 700 W,” said Gilberto Lembo, Marketing Manager EMEA at Tigo. pv magazine. “The upgraded version can now handle 725 W and 22 A, making it compatible with the latest high-power and bifacial PV modules.”
“The new product can support multi-factor rapid shutdown, combining wireless and PLC communication to create a two-level safety mechanism,” Lembo continued. “The feature is primarily aimed at commercial installations, although the devices are also widely used in residential systems.”
According to the company, the devices follow a ‘single-size’ product philosophy, meaning the same hardware platform can be used in systems ranging from kW-scale residential arrays to multi-MW commercial projects, simplifying product selection for installers.
The TS4-AO (725 W) optimizer integrates optimization, monitoring and fast shutdown functionality at the panel level, aimed at both new solar installations and retrofit applications. It is compatible with modern high-performance PV modules and supports a rated power of up to 725 W, with a short circuit current of 22 A and a maximum power current of 16 A. It also features a maximum efficiency of 99.6% and supports system voltages of 1,000 V or 1,500 V.
The device operates within an input voltage range of 12 V to 80 V and features an integrated rapid shutdown capability, certified to UL 1741 PV Rapid Shutdown Equipment (PVRSE) standards. The system can reportedly shut down in less than 30 seconds and uses 12 AWG conductors.
For communications, the device supports 2.4 GHz wireless connectivity or power-line communication (PLC). Monitoring and quick shutdown functions require integration with the Tigo Access Point (TAP) and Cloud Connect Advanced (CCA) gateway. When combined with an optional RSS transmitter, the system can also enable rapid multi-step shutdown for added security.
Installation can be performed directly on the PV module frame or mounting structure, allowing implementation in both new arrays and retrofit projects. The optimizer also provides module-level monitoring, allowing installers and operators to monitor both module and system performance.
Tigo said the device supports thousands of inverter models from more than 50 manufacturers, enabling broad compatibility between residential, commercial and industrial PV systems.
The new product has a 25-year warranty.
The company also introduced a revamped commissioning process through its Energy Intelligence monitoring platform, designed to simplify installation with real-time feedback and allow installers to complete system configuration remotely after completing the required steps on site.
The monitoring platform provides module-level performance data, including a metric called “recovered energy,” which represents the amount of energy recovered through optimization. This allows installers and system owners to identify underperforming modules and perform targeted maintenance when necessary, the company said.
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