Passive cooling
Passively cooled design; 59 rear fins, no fan as the primary heat path.
Pre-launch · United States
Home energy storage, 135 mm deep.
The Granville GV-ESS-12K-BLADE pairs a passively cooled hybrid inverter with stackable LFP battery modules in one slim, 620 mm wide tower.
- Depth
- 135 mm
- Inverter
- approx. 12 kW
- Storage per tower
- up to ≈ 15.36 kWh
- Enclosure
- NEMA 3R*
Made for United States
Split-phase whole-home backup via a separate 200 A gateway.
Configured for North American 120/240 V split-phase service with up to 3 modules per tower, 914 mm (3 ft) tower clearance, and whole-home transfer via an external 200 A gateway.
- Split-phase 120/240 V, 60 Hz output paired with a separate 200 A whole-home gateway
- Maximum 3 battery modules per tower (approx. 15.36 kWh) with 914 mm (3 ft) spacing
- Designed to meet NEMA 3R for garage or exterior wall mounting only
Design
Engineered quietly. Finished in high-gloss space grey.
5″ smoked-glass display
Set into the face of the inverter head.
The solar-amber light line
Single vertical solar-amber light line, showing the system state at a glance (states indicative).
Lockable service bay
Lower recessed hinged LOTO access door with rotary PV DC isolator, DIN-rail AC/DC circuit breakers, and CAN-FD / RS485 / telemetry interfaces.
Modular LFP storage
2 to 3 GV-Blade-5000 modules per tower, separated by a precise 3 mm shadow gap.
Configure your tower
Stack the storage you need.
Each GV-Blade-5000 module slots beneath the inverter head. Choose the stack that suits your home — your installer confirms the final design on site.
- Nominal storage
- ≈ 15.36kWh Design target
- Stack height
- 1,602 mm (5 ft 3 in) Verified
- Footprint
- 620 × 135 mm Verified
- Tower mass
- approx. 159 kg (351 lb) Design target
Specifications
Every figure, honestly labelled.
This product is still in development. Verified figures are fixed; Design target figures may change before launch.
Dimensions
- Width
- 620 mm (2 ft 0 in)Verified
- Depth (product only)
- 135 mm (0 ft 5 in)Verified
- Inverter head height
- 450 mm (1 ft 6 in)Verified
- Battery module height
- 350 mm (1 ft 2 in)Verified
- Plinth height
- 90 mm (0 ft 4 in)Verified
- Shadow gap
- 3 mmVerified
Inverter
- Output
- Approx. 12 kW, split-phase 120/240 V, 60 HzDesign target
- Topology
- Hybrid, silicon-carbide switchingDesign target
- Cooling
- Passive · 59 rear finsGeometry verified
- Mass
- approx. 32 kg (71 lb)Design target
- Enclosure
- Designed to meet NEMA 3R*Design target
Battery module · GV-Blade-5000
- Energy
- approx. 5.12 kWhDesign target
- Nominal voltage
- 51.2 VDesign target
- Chemistry
- LFP · 16 cellsDesign target
- Mass
- approx. 41 kg (90 lb)Design target
- Modules per tower
- 2, 3Verified
Interface & finish
- Display
- 5" smoked glassVerified
- Status light
- Single vertical solar-amber light lineVerified
- Finish
- High-gloss Space GreyDecided
Confirmed closer to launch
We only publish these once testing and certification are complete:
- Certification results
- Fire-safety system details
- Maximum parallel towers
- Wall stand-off distance
- Round-trip efficiency
- Cycle life
- Warranty terms
- Acoustic noise level
- Operating temperature range
- Backup switchover time
- App features
- Pricing
Installation
Installed by certified professionals.
The Granville GV-ESS-12K-BLADE is sold through installers. You register interest; Granville matches you with a certified installer in your area when the product launches in United States.
- 01Register interest
Tell us about your property and preferred tower size.
- 02Get development updates
Engineering milestones and certification progress for your region.
- 03Meet your installer
A certified local installer designs and installs your system.
Permitted locations
- Garage
- Exterior wall only
Tower-to-tower spacing
914 mm (3 ft)
Grid connection
Approx. 12 kW, split-phase 120/240 V, 60 Hz
Better together
Complete the system.
Solar PV Input Architecture
Direct DC array integration through the rotary PV DC isolator.
Separate 200 A Whole-Home Gateway
External service-entrance transfer gateway enabling split-phase whole-home backup.
Battery-Only Tower Top Cap
Weather-sealed top cap for parallel 3-module expansion towers at 914 mm (3 ft) spacing.
Register interest
Be first in line in United States.
No pricing or delivery dates yet. Register to get development updates and to be matched with a certified installer at launch.