For critical infrastructure such as wastewater treatment plants, a power outage is not only an inconvenience. It can interrupt essential processes, increase environmental risk, and create public safety concerns.
This project uses a 408 kWh solar-plus-storage system to support continuous operation at a large wastewater treatment plant. The installation was led by Battery DepotMex and combines Victron Energy equipment with Pytes V12 battery modules.
System configuration
The plant operates in 24/7 self-consumption mode, using the grid only as a final backup. To meet round-the-clock operational demand, the hybrid system includes:
- 12 x Victron Energy Quattro 48/10000-120V inverters, rated at 15 kVA each;
- 10 x MPPT 450/200 solar charge controllers;
- 34 x Duravolt by Pytes 12 kWh battery modules;
- 408 kWh of total battery capacity;
- 180 kVA of system power.
The parallel inverter configuration provides the redundancy required for critical loads. The battery capacity allows the plant to continue operating for several hours without solar input.
Pytes V12 at the core
The Pytes V12 battery platform was selected for its combination of capacity, safety features, and environmental resilience. Each module provides 11.776 kWh of capacity using automotive-grade 230 Ah cells and is designed for more than 6,000 cycles.
Key V12 characteristics for this application include:
- integrated pre-charge circuit and battery circuit breaker;
- emergency stop support;
- optional built-in fire suppression;
- IP66 outdoor protection;
- C4-M corrosion resistance;
- optional integrated heating pads for harsh environments.
Why storage matters for critical processes
Diesel generators remain common in backup applications, but they bring slow response, fuel logistics, emissions, noise, and maintenance overhead. For a wastewater treatment plant, the operational target is not occasional backup. It is continuous resilience.
The project delivers four practical benefits:
- continuous operation for essential treatment processes;
- higher solar self-consumption and daily energy autonomy;
- reduced dependence on the grid during normal operation;
- stronger resilience for critical loads during abnormal conditions.
A model for resilient infrastructure
The installation demonstrates that solar generation and scalable lithium battery storage can support infrastructure where downtime is unacceptable. It also shows how well-coordinated system design can reduce reliance on conventional backup methods without compromising reliability.
Developed by Battery DepotMex with Victron Energy and Pytes equipment, this project is another step toward practical energy autonomy for critical facilities. For water treatment, healthcare, telecom, and industrial processes, systems like this point to a more resilient way to manage essential power.