In 2017, Delta presented the energy storage system ES30 series, an all-in-one and highly scalable solution integrating Li-ion batteries for up to 90kWh capacity and more than 2 hours of continuous 30kW back-up power as well as the new high-performance string PV inverter M88H series, featuring maximum 88kVA output power, industry-leading peak efficiency up to 98.8%, active cooling and an electromagnetic interference (EMI)-proof design.
By leveraging its core competence in power electronics, leadership in energy conversion efficiency and expertise in system integration, Delta develops intelligent solutions capable of optimizing the adoption of solar PV power and energy storage not only to support the transition megatrend from centralized energy supply to decentralized renewable energy plants, but also to enable greater electricity costs savings as well as a more reliable and eco-friendly energy supply.
Commercial Battery Energy Storage System ES30 Series:
The ES30 is a three-phase 90kWh Li-ion battery energy storage system suitable for commercial and industrial applications. The AC-coupled system in a standard 19” rack features a flexible and modular design scalable up from 6kWh to 90kWh battery capacity.
A 30kW Power Conversion System (PCS) with an impressive 0.99 AC output power factor and integrated Battery Management System (BMS) are included in the scope of delivery.
The system also includes:
30kW continuous power for more than 2 hours (with 90kWh battery capacity).
Modular and flexible design allows power expansion up to 90kWh.
Reliable and high quality Li-ion battery modules with cycle life greater than 6,000 cycles.
When combined with the Delta PPM P3E Power Meter and the R4 Smart Monitor Energy Management System, many different customized energy usage modes can be realized.
Limiting feed-in power to the grid from solar power generation according to a dynamic trend or by a fixed value.
Maximized self-consumption of the self-produced energy for commercial buildings or small businesses.
Peak-shaving and –shifting to allow the lower cost electric power to be stored to the battery bank as energy reserve, and the energy is then dispatched during peak rate periods for lower electric power cost.
Can be utilized to control reactive power to stabilize grid voltage.
High-power and high-efficiency string inverters are ideal for large commercial and ground-mounted PV plants with megawatt-sized solar arrays where optimum yield is important to ensure a valuable investment return from the system.
Thus, Delta’s new flagship inverter model, the 3-phase M88H series, offers maximum 88kVA output power, active cooling and industry-leading peak efficiency of up to 98.8%.
Flexible DC/AC overload capabilities.
Metallic housing for perfect EMI performance.
Open communication possibilities with highly experienced partners in monitoring solutions enabling safe and proper remote plant control.
Other value-added features are:
2 MPP trackers and a high maximum input voltage up to 1100V allow for extra flexibility in system design and better performance in challenging conditions.
Rugged die-cast aluminium chassis and wiring box feature IP65 enclosure rating designed for outdoor installation even in harsh environments.
All-in-one design which greatly reduces the need for costly external devices. In fact, it includes built-in DC switches and AC and DC surge protection devices (SPDs). Multiple communication interfaces are available such as RS-485.