This is a typical small commercial solar-plus-storage project designed to provide an uninterrupted power supply while reducing electricity costs for a biological laboratory.  
The primary application is to ensure reliable power for a laboratory that stores a large number of temperature-sensitive vaccines and biological samples. These materials must remain in a strictly temperature-controlled environment at all times. However, as AI data centers (AIDC) have rapidly increased in both electricity demand and scale over the past few years, they have placed significant pressure on the local power grid. As a result, power outages have become increasingly frequent, making backup power essential to prevent temperature fluctuations that could compromise valuable laboratory assets.  
To address these challenges, the customer decided to install a **50 kW rooftop solar PV system** to maximize self-consumption and reduce dependence on the utility grid.  
The system consists of a **Growatt WIT 55 kW 208 V Three-Phase Hybrid Inverter** paired with a **Pytes 48100HV SE 61.44 kWh Outdoor Battery Energy Storage Cabinet**. During the day, the solar array supplies electricity directly to the laboratory’s loads, while excess solar energy is stored in the battery system. At night, the laboratory is powered by the battery system to further reduce electricity costs. To ensure emergency backup capability, the battery’s maximum depth of discharge is limited to **50%**, reserving sufficient energy to provide backup power during unexpected grid outages and maintain stable laboratory operations.

A Small Commercial Solar + Battery system for Biotech Lab: 60KW PV + Growatt WIT 55kW 208V 3-Phase Hybrid inverter + Pytes 48100HV SE 61.66kWh