Description
Stacking up to 18 kWh in a compact 2-module residential column.
GoodWe GW9.0-BAT-D-G20 is a 9.0 kWh high-capacity high-voltage LFP storage brick engineered for GoodWe ESA G20 All-in-One residential columns, delivering maximum energy density per vertical layer with internal cable-free busbars.
9.0 kWh High-Capacity Single Brick
Delivers the highest energy density per module in GoodWe's residential lineup, minimizing required stack height.
Cable-Free Direct Column Stacking
Mates high-voltage power and communication lines directly through internal busbars with zero exposed wiring.
All-Season Residential Heating Buffer
Provides ample storage capacity to sustain variable-speed heat pump cycles through cold winter nights.
IP66 Outdoor Weatherproof Housing
Heavy-duty cast-aluminum casing engineered for reliable indoor or sheltered outdoor installations.
More product details
Stacking two 9.0 kWh bricks delivers 18.0 kWh of storage beneath the inverter while standing just over 1.2 meters tall, cutting required installation space and simplifying home battery placement.
- High-density LFP cell architecture packs 9.0 kWh into a compact, vibration-resistant module casing.
- Stacking 2 modules reaches 18.0 kWh nominal (16.2 kWh usable), ideal for large residential heat pump homes.
- Cell-level thermal monitoring and active balancing prevent localized degradation across thousands of daily cycles.
Internal self-aligning busbars for fast, error-free assembly.
Traditional high-voltage batteries require complex external DC wiring, conduit bending, and communication patch leads. The GW9.0-BAT-D-G20 passes all electrical pathways internally through heavy-duty mating terminals. Self-aligning guide pins ensure perfect mechanical seating and electrical contact upon vertical placement. Eliminates exposed high-voltage DC cables on garage and utility room walls, maximizing home safety. IP66 sealed enclosure protects power cells against humidity, dust, and coastal environments (-20 to +50 °C).
Runs 4.5 kW continuous charging and discharging
Processes 4.5 kW continuous throughput at 10.7 A in and 11.8 A out, with 6.75 kW surge capacity for 10 s.
Fits 350 to 550 V and 700 to 950 V operating windows
Integrates into single-phase architectures from 350 to 550 V and three-phase towers from 700 to 950 V.
Holds 10,000 cycles under full depth of discharge
Long-life LFP cell chemistry sustains at least 10,000 operating cycles in 25 C laboratory test protocols.
Technical data
The ultra-high-density storage block engineered for electrified homes with large heat pump buffers.
9.0 kWh maximum single-brick storage for high-demand ESA G20 residential towers.
Maxing out single-brick capacity in the ESA G20 series, the GW9.0-BAT-D-G20 packs 9.0 kWh of high-voltage LFP storage into a single floor-standing unit. Stacking cleanly into the ESA vertical tower, it provides the substantial storage reserves needed to power domestic heat pumps, EV wallboxes, and all-electric households overnight in an ultra-lean 0.25 m² floor footprint.
- Nominal Storage
- 9.0 kWh
- High-Voltage Range
- 350–550 V
- External DC Conduits
- Zero
- Heavy-Duty Enclosure
- IP66
Battery Module
- Type / energy
- LFP (LiFePO4); 9.0 kWh rated / 8.72 kWh usable
- Operating voltage window
- 350-550 V (single-phase systems) / 700-950 V (three-phase systems)
- Max. input / output power (system)
- 4.5 kW / 4.5 kW
- Max. input / output current (system)
- 10.7 A / 11.8 A
- Peak output power
- 6.75 kW for 10 s
- Cycle life
- >=10,000 cycles (lab conditions, 100% DoD, 25±2 C)
Mechanical & Environment
- Dimensions / weight
- 800 x 326 x 270 mm / 77±1 kg
- Ingress protection
- IP66
- Charging temperature range
- -20 to +55 C (with heating; discharge -20 to +55 C)
- Fire safety / functions
- Aerosol fire extinguishing integrated; heating integrated
- Scalability
- Up to 12 modules per ESA system (max 6 per stacked column)
Project fit
Where this model fits.
Scenarios that show which projects the GoodWe GW9.0-BAT-D-G20 (ESA battery module, 9.0 kWh) belongs in, what to verify before quoting, and when another model is the better pick.
Large Electrified Homes (12–16 kWp Solar) with High Winter Heating Demands
Single-family homes with 3-phase air-to-water heat pumps and domestic EV chargers consuming 12–16 kWh overnight.
Stacking two 9.0 kWh bricks provides 18.0 kWh total storage (16.2 kWh usable) in a clean, compact 2-brick column, sustaining continuous heating and domestic baselines with zero grid purchases.
- Confirm this model against the adjacent rating in the same family
Documents
GoodWe ESA Series 5-30kW Datasheet (EN)Product questions
Can I mix a 6.0 kWh module and a 9.0 kWh module in the same ESA G20 column?
No. All battery modules in a single column must be identical. To maintain uniform cell balancing, symmetrical internal resistance, and balanced charge/discharge rates, all battery bricks stacked in an ESA G20 tower must be of the same model and capacity (i.e., all 6.0 kWh bricks or all 9.0 kWh bricks).
What is the total storage capacity when stacking two 9.0 kWh modules?
18.0 kWh nominal / 16.20 kWh usable capacity. Stacking two GW9.0-BAT-D-G20 modules creates an 18.0 kWh storage bank (16.20 kWh usable at 90% DoD) across a 350–550 V high-voltage operating bus, delivering complete multi-day energy autonomy for large residences.
Approved pairings
GoodWe ESA GW10K-ETA-G20 (10 kW three-phase all-in-one, current flagship)Item number DLK-GOODWE-GW10KETAG20GW6.0 / GW9.0-BAT-D-G20 modules; a single string stacks up to 6 (manual p69), 12 units system-wide. The number of parallel stacks is NOT printed - 12/6 would be an inference, so quote multi-stack designs conservatively.
GoodWe ESA GW12K-ETA-G20 (12 kW three-phase all-in-one)Item number DLK-GOODWE-GW12KETAG20GW6.0 / GW9.0-BAT-D-G20 modules; a single string stacks up to 6 (manual p69), 12 units system-wide. The number of parallel stacks is NOT printed - 12/6 would be an inference, so quote multi-stack designs conservatively.
GoodWe ESA GW15K-ETA-G20 (15 kW three-phase all-in-one)Item number DLK-GOODWE-GW15KETAG20GW6.0 / GW9.0-BAT-D-G20 modules; a single string stacks up to 6 (manual p69), 12 units system-wide. The number of parallel stacks is NOT printed - 12/6 would be an inference, so quote multi-stack designs conservatively.
GoodWe ESA GW8K-ETA-G20 (8 kW three-phase all-in-one)Item number DLK-GOODWE-GW8KETAG20GW6.0 / GW9.0-BAT-D-G20 modules; a single string stacks up to 6 (manual p69), 12 units system-wide. The number of parallel stacks is NOT printed - 12/6 would be an inference, so quote multi-stack designs conservatively.