ESS GTL 250kW+261kWh Integrated Solar & Storage System

Q: What does the ESS GTL 250kW+261kWh 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

概要

ESS GTL 250kW+261kWh Integrated Solar & Storage System pairs a 250kW grid-tied inverter with 261kWh LiFePO₄ storage; MPPT window —, transfer to island within ≤10 ms, liquid cooling and IP54. It serves PV self-consumption, peak shaving and critical-load backup in parks and distribution areas.

製品の特長

Rated power 250kW with 261kWh LiFePO₄ storage
On/off-grid transfer within ≤10 ms
MPPT window —, max. DC input —
All-in-one cabinet build, liquid cooling, IP54 enclosure
CAN / RS485 monitoring with EMS interface

製品説明

The ESS GTL series integrates the PV inverter, the liquid 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 GTL 250kW+261kWh runs at 832VDC with roughly 261kWh usable, measures 1370×1120×2350mm and weighs about 2420kg. 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 250kW with 261kWh LiFePO₄ storage
On/off-grid transfer within ≤10 ms
MPPT window —, max. DC input —
All-in-one cabinet build, liquid cooling, IP54 enclosure

仕様

Cell type	LiFePO₄ 磷酸铁锂
Module configuration	1P52S
Number of modules	5
Nominal voltage	832VDC
Single cell capacity	314Ah
Usable energy	261kWh
Voltage range	794~956VDC
Max. charge current	157A
Max. discharge current	314A
Rated power (on-grid)	250kVA
Rated current (on-grid)	362A
Rated voltage	400V / 230V
Grid voltage range	-20%~+15%
Frequency range	50Hz(47Hz~52Hz) / 60Hz(57Hz~62Hz)
Current harmonics	<3%
Power factor	-1~1
Protection	过充 / 过放 / 过流 / 过温 / 短路
Communication	CAN / RS485
Cooling method	液冷 Liquid cooling
Protection level	IP54
Safety certification	UN38.3, IEC62619
Storage duration	25℃ 下可存放 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 (W×D×H)	1370×1120×2350mm
Weight	2420kg

製品FAQ

What does the ESS GTL 250kW+261kWh 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.