The Challenge

Solar Optimum, a California-based solar installer, needed a solution for its client, a
commercial real estate investment firm, capable of reducing electric bill costs at a critical operations facility in San Diego, California. Although the facility has a robust 275 kW solar PV array, it struggled to manage energy consumption effectively. The solution required an energy storage system (ESS) capable of charging during low electricity price periods and discharging during high-price periods, along with advanced control software to further optimize its performance in reducing demand during peak hours. Solar Optimum was looking for a partner that could rapidly procure the system, deliver advanced operational software, and provide support throughout the project lifecycle. Our proven success in the California market and ability to deliver measurable savings gave Solar Optimum the confidence to partner with us for a tailored solution.

The Solution

Solar Optimum partnered with Energy Toolbase to deploy an ESS integrated with ETB Controller and Acumen AI™, configured for a time-of-use (TOU) arbitrage strategy. Leveraging dynamic economic dispatch, Acumen AI optimizes charging during low-cost periods and discharging during high-price periods to maximize savings. Energy Toolbase’s hardware and software partnership with BYD, combined with its role as a certified BYD reseller, ensured seamless integration and a rapid turnaround from procurement to commissioning. The 120 kW/258 kWh 2-hour BYD CHESS unit was paired with the facility’s existing 275 kW solar array, enabling greater value from onsite generation. Through ETB Monitor, the customer can track performance, oversee efficiency, and make adjustments to maximize savings and asset value.