Modular, stackable storage systems allow flexible capacity expansion and compact installation across residential and small commercial applications. (Photo Credit: TaiyangNews)
Technology

Modular Storage Systems Adapt To Residential And C&I Needs

At the TaiyangNews Inverters & Battery Storage Conference, Canadian Solar’s Andrea Pratico discussed how integrated and scalable storage systems are evolving for distributed PV applications

Shashi Kiran Jonnak

Key takeaways:

  • Andrea Pratico from Canadian Solar highlighted a shift toward integrated, all-in-one storage systems in residential and C&I segments

  • Modular designs enable flexible system sizing, allowing capacity to scale from small residential setups to larger installations

  • System flexibility includes features such as multiple MPPT inputs and the ability to add storage after initial PV installation

As the demand for residential and commercial-scale PV systems increases, there is also increased adoption of storage in these markets. At the TaiyangNews Inverters & Battery Storage Conference, Andrea Pratico from Canadian Solar discussed how residential and small commercial storage systems are evolving.

Pratico highlighted that integrated and all-in-one systems are becoming more common in residential and C&I storage segments. Using the company’s EP Cube platform as an example, he explained how it enables these features in a compact and easy-to-install system.

The system uses a modular, stackable design with plug-and-play connections. Each battery module has a capacity of 5 kWh and weighs less than 42 kg. Pratico said the system’s lower weight makes it easy to handle. In terms of flexibility, the system can be used across different applications, from small residential setups to larger commercial installations. Given its modular format, its capacity can be scaled from 5 kWh to up to 200 kWh by connecting multiple units.

EP Cube incorporates multiple MPPT inputs and a starting voltage of 80 V. This allows for flexibility in system design by supporting different string configurations, including installations with limited module counts or varying orientations. Pratico adds that this allows the system to maximize energy generation in a limited space or when the orientations are not ideal.

Regarding ease of system expansion, he said EP Cube installations can start with only solar. Storage can be added later once the user understands their energy consumption pattern. This staged approach gives more flexibility to both installers and the end users.

According to Pratico, an EP Cube storage tower with 4 batteries and 20 kWh capacity measures about 164 cm. The maximum capacity achieved per cubic meter is 63 kWh. He emphasized that such compact storage systems are especially relevant in markets where space is limited, such as apartments or densely populated areas.

In regions where grid instability or high electricity prices are major concerns, it is important to ensure a continuous power supply for self-consumption. According to Patrico, EP Cube’s backup capability and predictive control using AI-based tools to optimize energy usage help the end user become energy-independent.