Libman

The industrial end customer is The Libman Company, based in Arcola, Illinois. Libman is a 120 year-old family owned company, and a US leader in branded home cleaning brooms, brushes and cleaning utensils. Libman proudly manufactures most of its products in its Illinois factory. The project, self developed by IG, is being implemented under a turnkey EPC contract from Continental Energy Solutions.

Libman uses nearly 100 plastic injection molding machines; their operation and control systems are highly susceptible to power supply interruptions, even if just a few cycles not noticeable by humans. Frequent power disturbances, costing Libman several hundreds of thousand dollars of lost revenue each year, motivated Libman to seek power resiliency solutions without the high cost and low efficiency of traditional UPS solutions. In over a year of technical and regulatory work, an innovative solution was selected that will deploy 2 MW of energy storage systems in a highly novel industrial configuration.

The battery system is coupled with a 1.8 MW solar system which has already been built. The project ensures uninterruptible power flow to the most critical injection machines and allows participation in the MISO wholesale market, managed by IG.

This project covers about 20% of Libman’s power requirements, and will be augmented to 100% after the first phase is complete middle of 2020.

Type: Manufacturing

Size: 1.8 MW solar PV, 2 MW storage

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