Modular solar-storage innovation powers sustainable aquaculture

Sigenergy, a key player in renewable energy innovation, recently showcased its modular commercial and industrial (C&I) solar-storage system at Sigenergy Day APAC in Hainan

The event brought together over 300 industry experts, partners, clients, and media professionals to explore the evolving landscape of solar-storage technology. A particular highlight of the event was a tour of a new aquaculture project powered entirely by solar and storage technology—demonstrating a bold step forward in sustainable energy applications beyond traditional sectors.

The seawater fish farming project, located in Hainan, uses Sigenergy’s advanced C&I inverters and the SigenStack energy storage system to power its operations. With a setup integrating 6 MW of solar power and 5 MWh of storage capacity, the project shows how clean energy can be effectively used in the demanding environment of aquaculture. It is a significant case study for how renewable energy can reduce operational costs and support environmental goals in industries that depend on consistent and intensive energy use.

This fish farm, focused on cultivating the high-value Leopard Coral Grouper, requires stringent control over its operating environment. Maintaining stable water temperature, constant oxygen supply, and controlled lighting is essential to the survival of the fish. These needs drive high energy consumption, with the farm using around 43,200 kWh daily and more than 15 million kWh annually. Sigenergy’s system drastically cuts the farm’s reliance on the grid and offers a cost-effective, environmentally conscious energy solution.

The site posed several logistical and environmental challenges that traditional energy systems could not solve. However, Sigenergy’s modular design provided key advantages. Space was a major limitation, with narrow corridors between ponds making bulky container systems impractical. The compact, plug-and-play nature of Sigenergy’s solution allowed it to be easily installed without wasting valuable space.

Transport and installation were also simplified. As the site is located near water networks, heavy machinery access was impossible. Sigenergy’s lightweight units, which don’t require cranes, enabled the system to be fully set up in just four days. The sandy soil also posed structural concerns, but the modular design allowed even weight distribution, reducing foundation stress and ensuring safety.

Being just 300 metres from the sea, the site is exposed to salt-heavy air and humidity. Sigenergy’s equipment is built to last under such harsh conditions, with IP66 and C5-M protection ratings that provide high-level resistance to corrosion and ensure long-term performance.

This deployment not only delivers reliable and clean energy for the aquaculture industry but also stands as a scalable model for energy transformation in other complex, high-demand environments.