The Challenge

PVCA, a California-based electrical contractor specializing in solar operations and maintenance, was searching for a solution at a fulfillment center facing new demand charges after a utility rate change. This utility territory is known for its high demand charges. Previously, the site’s solar system offset much of the facility’s electricity use. However, when demand charges were added to the rate structure, excess solar production no longer translated into savings. Instead, the facility began losing thousands of dollars each month. The customer needed an energy storage and management system that could pair with the existing solar to lower costs and achieve their energy-reduction goals.

The Solution

PVCA selected Energy Toolbase’s ETB Controller and Acumen AI™, paired with Socomec’s HES L battery, to install alongside the existing solar system and target the high demand charges that occur in the afternoon. By combining solar with storage, the customer will significantly reduce demand charges and save thousands of dollars monthly. The system also gives the customer greater control over their energy use and costs, providing more financial flexibility. Looking ahead, the customer plans to expand the facility and add capacity, and the existing infrastructure makes future upgrades seamless. By selecting Socomec’s HES L unit, the system can also serve as a foundation for potential microgrid operations if the area experiences blackouts or critical outages.