Modular energy systems: battery storage, heat pumps and hydrogen on one platform – developed and assembled in Austria.
EEG Elements Energy GmbH
Dobl-Zwaring (AT)New on Amplifa
About EEG Elements Energy
EEG Elements Energy GmbH was founded in 2018 in Dobl-Zwaring in Styria with the goal of making large-scale energy storage affordable. The company develops, produces, assembles and services integrated energy systems under its own responsibility along the entire value chain. The core product is the JOHANN X3 platform with three product lines: X3 Battery (modular LiFePO₄ battery storage, 45/90 kVA, 94.47–188.94 kWh usable, expandable in 2-module steps), X3 Calor (battery storage with integrated R290 air-to-water heat pump, 16/32 kW) and X3 Hydrogen (electrolyzer plus fuel cell for seasonal long-term storage, pilot from Q4 2026). A central controller coordinates electricity, heat and cooling; all systems can be monitored remotely via Modbus TCP. Fields of application include retail chains, logistics, hospitality, critical infrastructure, the public sector, manufacturing companies as well as agricultural and residential properties – with more than 150 realized projects in Austria.
- Site
- Dobl-Zwaring
- Processes
- Battery storage systems (JOHANN X3 Battery, LiFePO₄, 45/90 kVA, 94.47–188.94 kWh), Heat pump integration (JOHANN X3 Calor, air-to-water, 16/32 kW, R290), Hydrogen energy storage (electrolyzer + fuel cell, 150 bar, ~1409 kWh H2), System engineering and energy data analysis (load, PV and grid data analysis, concept development,, Production, installation and commissioning of energy systems (full in-house value chain —, Remote monitoring, optimization and service (remote monitoring, Modbus TCP, long-term operation), Energy data analysis and monitoring software, System engineering and concept development
- Materials
- LiFePO₄ (lithium iron phosphate), R290 (natural refrigerant, propane, GWP 3), R290 (propane, GWP 3), Battery storage system JOHANN X3 Battery, Heat pump system JOHANN X3 Calor, Hydrogen energy storage JOHANN X3 Hydrogen
- Certificates
- Fire protection R90 / EI90 / REI90 (product certification), Fire protection R90 / EI90 / REI90, 10-year performance guarantee, IP54 / IK10
- Founded
- 2018
- Industries
- Retail chains / multi-site retail, Logistics, Hospitality (multi-site), Critical infrastructure, Public sector, Manufacturing industry
- 01
Energy data analysis and monitoring software
- 02
System engineering and concept development
- 03
Production and assembly
- 04
Installation and commissioning
- 05
Remote monitoring and service
- 06
Modular expansion and upgrades
Technologies and Processes
LiFePO₄ (lithium iron phosphate)
Storage chemistry of the JOHANN X3 Battery with ≥ 6,000 charge cycles at 25 °C.
R290 (propane, GWP 3)
Natural refrigerant of the integrated X3 Calor air-to-water heat pump.
Battery storage system JOHANN X3 Battery
Modular electricity storage, 45/90 kVA, IP54/IK10, switchover time < 20 ms.
Heat pump system JOHANN X3 Calor
Battery storage with integrated monobloc heat pump, COP 4.51 (A7/W35).
Hydrogen energy storage JOHANN X3 Hydrogen
Electrolyzer and fuel cell at 150 bar for seasonal storage, pilot from Q4 2026.
Locations
Dobl-Zwaring
ATHeadquarters, development, production, assembly and service
- Lot size
- Single projects up to multi-site rollouts
- Materials
- LiFePO₄, R290
- JOHANN X3-45 battery system
- JOHANN X3-90 battery system
- X3 Calor heat pump modules (16/32 kW)
- X3 Hydrogen (electrolyzer + fuel cell, pilot)
Product Lines
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Battery storage systems (JOHANN X3 Battery, LiFePO₄, 45/90 kVA, 94.47–188.94 kWh)Assembly | – | 2.99 m | – | – | LiFePO₄ |
| Heat pump integration (JOHANN X3 Calor, air-to-water, 16/32 kW, R290)Assembly | – | 5.0 m × 2.84 m × 2.99 m | – | – | R290 |
| Hydrogen energy storage (electrolyzer + fuel cell, 150 bar, ~1409 kWh H2)Assembly | – | – | – | – | – |
| System engineering and energy data analysis (load, PV and grid data analysis, concept development,Engineering | – | – | – | – | – |
| Production, installation and commissioning of energy systems (full in-house value chain —Assembly | – | – | – | – | – |
| Remote monitoring, optimization and service (remote monitoring, Modbus TCP, long-term operation)Assembly | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Modular battery storage JOHANN X3-45 | EEG Elements Energy X3-45 | – | 94.47–188.94 kWh, 45 kVA nominal / 75 kVA peak (5 s), 28–56 modules, footprint 3.54×2.84×2.99 m | – | Dobl-Zwaring, Styria (Austria) |
| Modular battery storage JOHANN X3-90 | EEG Elements Energy X3-90 | – | 188.94 kWh, 90 kVA nominal / 150 kVA peak (5 s), 56 modules, footprint 3.54×2.84×2.99 m | – | Dobl-Zwaring, Styria (Austria) |
| Air-to-water heat pump (R290 monobloc, 16/32 kW) | EEG Elements Energy X3-45/90 Calor | – | COP 4.51 (A7/W35), 35°C design / 55°C max, ~5.0×2.84×2.99 m | – | Dobl-Zwaring, Styria (Austria) |
| Hydrogen energy storage (electrolyzer + fuel cell) | EEG Elements Energy X3 Hydrogen | – | ~1409 kWh H2 @ 150 bar ≈ ~700 kWh usable electrical, pilot from Q4 2026 | – | Dobl-Zwaring, Styria (Austria) |
Additional services
Quality and Safety
JOHANN X3 systems feature a certified full-surface fire protection design to R90 / EI90 / REI90, protection class IP54/IK10 and are grid-forming capable with a switchover time of under 20 ms. With a 10-year performance guarantee and a 30-year design life including scheduled overhaul, EEG offers direct manufacturer service with its own Austrian field service team.
| Evidence | Dobl-Zwaring |
|---|---|
| Fire protection R90 / EI90 / REI90 | |
| 10-year performance guarantee | |
| IP54 / IK10 |
History
- 2018
Foundation of EEG Elements Energy GmbH in Dobl-Zwaring, Styria, with the goal of making large-scale energy storage affordable.
- 2018–2026
JOHANN platform in daily field operation: over 150 projects in Austria without safety-relevant failures.
- 2026
Market launch of the X3 product line; X3 Battery and X3 Calor production-ready, X3 Hydrogen as a pilot from Q4 2026.