Alpha ESS STORION-H30/H50-G3

Compatibility

Compatible with EpiSensor Edge over Modbus TCP through the cabinet EMS, or through an EpiSensor ZEM on its AC feeder

The datasheet lists RS485, CAN, Ethernet and Modbus TCP for communication and Modbus TCP and API for dispatching, and the installation manual places the EMS between the PCS, battery, meter and SCADA. Edge is a Modbus TCP client; the addresses, types and scales come from Alpha ESS's point list for the installed EMS. Where no point list is available, an EpiSensor ZEM measures power and energy at the cabinet's AC connection.

STORION-H29.9-G3, STORION-H30-G3 and STORION-H50-G3 under installation manual V1.6 (cover V09) and datasheet V2.3. Site check: obtain the EMS Modbus TCP point list and endpoint from Alpha ESS, read system state, AC power and state of charge, and compare them with the SCADA display. The cabinet's own grid meter, PCS and battery stay on the EMS. Read-only monitoring; dispatch, peak shaving, TOU and VPP commands stay with Alpha ESS's EMS and the site owner.

Connect it with

• Wireless 3-Phase Electricity Monitor ZEM-65 From €625 ex VAT Configure
• Gateway ZGW-20 From €899 ex VAT Configure
• Evaluation Gateway on a Raspberry Pi Edge with one device licensed Free Set up

Models

Specifications

The cabinet integrates batteries, PCS, DC/DC, STS and EMS on a footprint of 1,120 x 1,300 mm, with four MPPTs and eight PV inputs on the hybrid PCS. Up to 10 systems run in on-grid parallel and 4 in off-grid parallel, and on-grid to off-grid switching takes 20 ms or less.^1, 2

PCS power

29.9 kW (H29.9), 30 kW (H30), 50 kW (H50); 3L/N/PE at 220/380, 230/400 or 240/415 V, 50 / 60 Hz^1, 2

Battery

LiFePO4, M77314-S modules of 24.1 kWh at 76.8 V, 3 to 5 in series per cabinet; 72.3 to 120.5 kWh per cabinet, up to two racks with an extra battery cabinet^1, 3

Communication

RS485, CAN, Ethernet and Modbus TCP; dispatching protocol Modbus TCP and API^1, 2

EMS interfaces

4 x RS-485 and 3 x 10 Mbps Ethernet; default EMS LAN1 192.168.200.101 (towards the SCADA), LAN2 192.168.200.102 (towards the PCS)¹

Enclosure

IP55; corrosion class C4; 65 dB or less at 1 m; HVAC cooling^1, 2, 3

Environment

-30 to 50 °C with PCS derating above 45 °C; battery module -20 to 50 °C; 0 to 90% humidity, non-condensing; 3,000 m^1, 2, 3

Warranty

5 years product, 10 years battery³

Interface

Documented measurements and integration boundaries for STORION-H30/H50-G3.

• Alpha ESS's public documents give no register addresses. Take addresses, function codes, data types, scales, word order and sign from Alpha ESS's EMS point list for the installed version.
• Request the system-level points first: operating state and alarms, AC active power at the grid connection, battery charge and discharge power, PV power, battery state of charge and charged and discharged energy, each with its sign convention.
• The optional grid meter in the datasheet is a DTSU666 (±1%, RS485 Modbus RTU) with AKH-0.66 400/5 A CTs, wired to the EMS RS-485 bus. Read its values through the EMS point list, not by adding Edge to that RS-485 pair.
• Battery cluster values reach the EMS over CAN from the BAMU. Read them only as the EMS publishes them; cell data stays with the battery system.
• The EMS also reads the PV conditioner, UPS or generator meter and air conditioner over RS-485, and digital inputs such as emergency stop, smoke, fire protection and water immersion. Ask which of these the point list exposes as alarms.
• No dispatch, peak-shaving, TOU, backup or charging-limit point is written by Edge. The EMS digital inputs for charging limits and the RRCR contacts belong to the site's control design, not to monitoring.

Setup

1. Record the cabinet configuration

   Record the model (H29.9, H30 or H50), the number of battery modules, any extra battery cabinet, follower cabinets in parallel, and the EMS and PCS firmware shown on the SCADA.

2. Ask Alpha ESS for the dispatching point list

   Request the EMS Modbus TCP point list for the installed version: addresses, function codes, types, scales, word order and the sign of every power value. Ask which Ethernet port and IP address a third-party client should use and whether it may run beside the cloud connection.

3. Connect on a protected network

   The factory EMS addresses sit in 192.168.200.0/24 on the cabinet's internal network. Connect Edge only through the port and address Alpha ESS names, behind a firewall that admits Modbus TCP from the Gateway alone.

4. Read state, power and SOC first

   Configure the system state, grid-connection AC power and battery SOC points, and compare them with the SCADA display. Then add PV, battery power and energy counters.

5. Fit a ZEM where the point list is missing

   If no point list is available, or the site needs an independent measurement, fit an EpiSensor ZEM with its own CTs on the cabinet's AC feeder. Record the import direction and compare its energy with the SCADA over a full charge and discharge cycle.

Common questions

Where is the STORION-H30/H50-G3 register map?

It is not in the public datasheet, installation manual or product page. Ask Alpha ESS for the EMS dispatching point list for the installed version.^1, 2

Can Edge read the cabinet's grid meter directly?

Not without disturbing the EMS. The meter's RS-485 port is wired to the cabinet terminals XT4:13B and XT4:14B for the EMS. Read the meter values through the EMS point list, or fit a separate EpiSensor ZEM.¹

Is the Alpha ESS cloud API an Edge connection?

No. Edge reads the cabinet over Modbus TCP or measures it with a ZEM. The API that the datasheet lists for dispatching belongs to Alpha ESS's cloud platform.²