In search of an efficient, economical and sustainable generation system, the São Joaquim Refrigerator, located in the city of Urucânia (MG), invested in a hybrid solution da DEIF, which integrates solar energy, network da dealership e diesel generators.
According to Mr Ian Schwanz, electrical engineer at Minas Energia, the integrator responsible for the project, with this system the client is obtaining a saving de 100 thousand liters de diesel oil a month.
In total, the project has:
- 5 thousand photovoltaic modules from Risen Energy – 3 MWp;
- 20 SIW500H ST-100 inverters from WEG – 2 MW;
- 5 diesel generators (3 x 750 kVA + 2x 550 kVA);
- Concessionaire with a contracted demand of 1,3 MW.
“The client, who sells pork, had network instability which forced him to use generators 24 hours a day at full load. Because of this, we developed the project in partnership with DEIF, which offered us its best hybrid distributed generation technology to save diesel oil”, highlighted Schwanz.
The project, which was installed and commissioned in August 2022, is already in operation without interruption to date. “For this project, we also intend to add BESS (Battery Energy Storage System) battery banks in the future”, he highlighted.
Project Details
The implementation of the DEIF hybrid system allowed the simultaneous operation of generators with the photovoltaic plant and the concessionaire. This integration optimized energy import/export, ensuring a reliable supply, using generators during peak demand.
In essence, the system prioritizes available energy sources, based on the best cost-benefit. The emphasis is to use solar energy whenever possible, with the maximum contribution from the concessionaire (contracted demand), reserving generators only to supplement demand, either when the load increases or when solar power falls due to shading caused by clouds.
To enable this configuration, specific DEIF controllers were installed: the AGC150 GEN for the generators, the AGC150 Mains for the utility input and the ASC 4 Solar to manage the 20 inverters. Additionally, the system is equipped with a 21-inch touchscreen, AGI421, which allows complete system management.
