Dyness 215kWh Cabinet with STS and MPPT

Dyness DH200F – 215 kWh C&I Storage Cabinet (STS + MPPT)

Dyness DH200F – 215 kWh C&I Storage Cabinet (STS + MPPT)

The DH200F is an industrial and commercial (C&I) scale energy storage system integrated into a single cabinet. In a single cabinet, you get the 215 kWh LFP battery pack, the 100 kW bidirectional power converter (PCS), and, as options, the MPPT inputs and the STS static transfer switch. So this isn’t a standalone inverter or just a battery pack—it’s a complete storage system that you install on-site, largely pre-assembled and pre-tested.

What is it used for?

Typical applications include industrial and commercial facilities with power consumption in the 100–250 kW range: manufacturing plants, logistics centers, office buildings, charging stations, or agricultural operations. The most common applications include peak load shaving (to reduce capacity charges), storing self-generated PV power and increasing self-consumption, as well as implementing energy trading (arbitrage) strategies.

With the optional STS, it can also be used for backup power supply: during a grid outage, it continues to supply critical loads in island mode. In a microgrid configuration, it can be operated together with PV and even a generator. One cabinet provides 215 kWh and 100 kW, so you can connect multiple units in parallel to meet higher demand.

How does it work?

Inside the cabinet, the 15 LFP packs are connected into a single cluster, which is monitored by the BMS, while charging and discharging are managed by the built-in DC-AC converter (PCS) connected to a 400 V, 3-phase + neutral + PE grid. If you also order the optional MPPT controllers, you can connect the solar array directly to the DC side (DC-coupled configuration) without a separate solar inverter—up to 50 kW per string, with up to 3 trackers.

When connected to the grid, the system charges during periods of cheap or surplus energy and discharges during peak hours or when consumption increases. In the event of a power outage, the STS switches to island mode within 20 ms, allowing protected loads to continue operating virtually unnoticed. You can monitor operation via a local touchscreen or remotely via Ethernet or 4G.

Technical and System-Level Benefits

On the PV side, it accepts DC input between 200 and 670 V, with 3 MPPT channels and 50 kW per channel, so you can easily oversize the 100 kW PCS with solar panels. The AC side is compatible with a standard 400 V industrial grid (320–460 V range, 50/60 Hz adjustable), with output distortion remaining below 3% and islanding switchover time under 20 ms. Thanks to its LFP cell chemistry and a cycle life of 6,000 cycles (80% EOL), it can reliably support C&I loads with one or two cycles per day over the long term.

At the system level, the greatest advantage is integration: battery, BMS, PCS, fire protection, and cooling are all housed in a single cabinet with IP55 protection and C3 corrosion resistance, suitable for outdoor use. This means less design work, fewer integration points, and faster installation compared to building the same system from separate battery rack, PCS, and solar inverter components.

Important to know

The cabinet weighs approximately 3,000 kg and measures 1,850 × 1,200 × 2,250 mm, so it requires a stable foundation and adequate on-site access; the noise level of ≤75 dB and the airflow requirements for cooling should be taken into account at the installation site. Power derating takes effect at altitudes above 2000 m; the operating range is between –20 and +50 °C.

MPPT and STS are optional, and this significantly affects the system design: MPPT is required for DC-coupled PV, while STS is needed for backup/off-grid operation. This is a good choice if you’re considering a single, compact 100 kW / 215 kWh unit and value an integrated, pre-tested solution more than the flexibility of a system assembled from individual components.

SOLARKIT Reviews

We recommend this cabinet to those who want to store energy at the C&I level but do not want to coordinate separate battery, PCS, and inverter suppliers. The 100 kW / 215 kWh ratio is optimized for classic 1–2-hour peak shaving and power charge optimization; if longer-duration storage is required, it’s better to connect multiple units in parallel rather than pushing a single cabinet to its limits.

In practice, the DC-coupled MPPT option is the real selling point: for a new PV project, you’ll save on a separate solar inverter and manage both generation and storage from a single point. If backup power supply is also a goal, be sure to order the STS with it—adding it later is more complicated. Before installation, take the on-site foundation, the 3-metric-ton weight, and the cooling/noise conditions seriously, because these are the factors that often cause the schedule to slip.