ESS GTA 40kW+51kWh Integrated Solar & Storage System
At a glance
ESS GTA 40kW+51kWh Integrated Solar & Storage System pairs a 40kW grid-tied inverter with 51kWh LiFePO₄ storage; MPPT window —, transfer to island within ≤10 ms, air cooling and IP54. It serves PV self-consumption, peak shaving and critical-load backup in parks and distribution areas.
Key Features
- Rated power 40kW with 51kWh LiFePO₄ storage
- On/off-grid transfer within ≤10 ms
- MPPT window —, max. DC input —
- All-in-one cabinet build, air cooling, IP54 enclosure
- CAN / RS485 monitoring with EMS interface
Product Description
The ESS GTA series integrates the PV inverter, the air cooling LiFePO₄ battery and the on/off-grid transfer unit in a single cabinet — covering self-consumption, peak shaving and backup power. Wiring and commissioning are done inside the cabinet, so site work is limited to positioning and paralleling.
The ESS GTA 40kW+51kWh runs at 512VDC with roughly 51kWh usable, measures 800×700×2200mm and weighs about 608kg. Each cabinet is wired, insulation-tested and function-tested before shipment, so it can be specified and ordered once the load list and local grid requirements are confirmed.
- Rated power 40kW with 51kWh LiFePO₄ storage
- On/off-grid transfer within ≤10 ms
- MPPT window —, max. DC input —
- All-in-one cabinet build, air cooling, IP54 enclosure
Specifications
| Cell type | LiFePO₄ 磷酸铁锂 |
|---|---|
| Module configuration | 1P16S |
| Number of modules | 10 |
| Nominal voltage | 512VDC |
| Single cell capacity | 102Ah |
| Usable energy | 51kWh |
| Voltage range | 466~575VDC |
| Max. charge current | 53A |
| Max. discharge current | 102A |
| Rated power (on-grid) | 40kVA |
| Rated current (on-grid) | 58A |
| Rated voltage | 400V / 230V |
| Grid voltage range | -20%~+10% |
| Frequency range | 50Hz / 60Hz |
| Current harmonics | <3% |
| Power factor | -1~1 |
| Protection | 过充 / 过放 / 过流 / 过温 / 短路 |
| Communication | CAN / RS485 |
| Cooling method | 智能风冷 Air cooling |
| Protection level | IP54 |
| Safety certification | UN38.3, IEC62619 |
| Storage temperature | 0℃~30℃（25℃ 可存放 6 个月） |
| Working temperature | 充电 0℃~+55℃；放电 -20℃~+55℃ |
| Humidity | 0~95%RH（无凝露） |
| Max. operating altitude | <4000m（2000m 以上降额） |
| Dimensions (L×W×H) | 800×700×2200mm |
| Weight | 608kg |
Product FAQ
What does the ESS GTA 40kW+51kWh system solve?
It bundles the PV inverter, battery and on/off-grid transfer into one cabinet, addressing four pain points: weak self-consumption, peak-valley arbitrage, limited transformer capacity and backup for critical loads — with far less site integration work.
How are critical loads protected during an outage?
The built-in transfer unit switches in ≤10 ms; off-grid output is — with 100 % unbalanced-load capability.
Can units be paralleled or the battery extended?
Yes, both parallel operation and battery extension are supported. The number of parallel units depends on busbar rating, protective devices and the local grid-connection permit, and is confirmed in the project single-line diagram.
How should the PV array be sized?
The MPPT window is — with — maximum DC input; string open-circuit voltage must stay below the stated limit.
Lead time and customisation?
Standard batches ship in 15-30 days; volume orders and customised models follow the contract. Appearance, protocols, grid-compliance packages and monitoring-platform interfaces can be adapted.
Not sure this is the right specification?
Send us your drawing, data sheet or sample and our engineers will confirm the match within 48 hours.
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