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How can I manage an ESS with Maxem?

With integrated Energy Storage Systems (battery/ESS) there are several functionalities we offer. A Maxem Energy Controller is required. 

Energy Storage System Integration services:

Peak Shaving Peak shaving allows you to operate within strict grid limits without sacrificing performance. By defining grid thresholds in the control algorithm, the ESS automatically discharges during periods of high on-site demand and recharges when demand falls. This shifts consumption away from peak moments, reduces contracted grid requirements, and enables sites with limited grid capacity to maintain full operational output.

Charging Schedules For sites with time-varying or block-based energy tariffs, strategic scheduling is essential. Through the ESS scheduler, we can define when the battery should charge or avoid charging from the grid, ensuring operation aligns with energy pricing, demand patterns, or business rules. This enables cost-optimised behaviour such as avoiding high-price periods, charging only on low-cost blocks, or prioritising renewable charging. Flexibility is central: schedules can be adapted to each site's constraints and objectives.

Increased Renewable Energy Use The ESS integrates directly with on-site renewable generation, capturing excess solar or wind production and storing it for later use. This ensures renewable energy remains available even when generation is low, reducing reliance on fossil-based grid power. By shifting surplus production to periods of demand, the system supports higher self-consumption, improved sustainability metrics, and more stable use of intermittent energy sources.

Energy Buffer The energy buffer function increases usable site capacity beyond the contracted grid limit by intelligently coordinating the battery with controllable loads such as EV charging stations. When demand rises, the battery discharges to supplement the grid; when it approaches the minimum State of Charge (SoC), load control automatically reduces charging power so that the site never exceeds its contracted capacity. Minimum SoC and minimum SoC for buffer can be defined independently, enabling precise control over reserve levels while still maximising grid utilisation, renewable consumption, and battery output.