Battery Storage.
Grid-scale and behind-the-meter battery energy storage — frequency regulation, peak shaving, solar firming, microgrids. Lithium-iron-phosphate, lithium-ion, flow batteries — selected per use-case economics.
Battery Storage.
BESS Division
The Battery Storage Division engineers projects from the application case (FCAS, energy arbitrage, capacity, behind-the-meter) through delivery and ongoing operation. BESS unlocks the value of intermittent renewables and provides ancillary services to the grid.
What we deliver
- Use-case modelling and revenue stack analysis
- Battery sizing, augmentation strategy, degradation modelling
- Container layout, PCS sizing, MV connection design
- Fire detection and suppression to NFPA 855
- BMS/EMS architecture and integration
- Civil works, container erection, AC/DC integration, SCADA
How we work
- Design to IEC 62933, NFPA 855 and EN standards
- Energy market participation strategies (day-ahead, intraday, balancing)
- Multi-vendor compatibility — Tesla, BYD, CATL, Sungrow
- Performance guarantees with capacity-fade modelling
- EMS optimisation for revenue maximisation
Where we deliver
- Grid-scale storage (10–500 MWh)
- Solar+storage and wind+storage hybrid plants
- Industrial peak-shaving and demand-charge mitigation
- Microgrids and remote off-grid systems
- Backup power for critical facilities
- EV charging infrastructure storage buffers
With more than a decade of experience in high-profile projects, the HVAC-R Division is the foundation of APIS Ltd.'s engineering identity. It delivers sustainable, intelligent and energy-efficient solutions for every type of facility — from residential buildings to industrial complexes and public infrastructures.