Product · Design target
Solid State Transformer
MV AC → 800V DC in one step. No 50 Hz transformer.
- Design target
- Maturity gate
- JJ manufactured
- Sourcing role
- 5
- Capacity families
- Conversion · Grid Interaction
- Energy-flow stages
Claim discipline
Supported scales
Applications
Where it sits in the energy flow
Energy-flow stages this product is designed to serve, drawn from the platform architecture.
Conversion
AC ↔ DC conversion, voltage transformation — PCS, SST, rectifiers, inverters.
Grid Interaction
Grid-forming, grid-following, export limiting, Volt/VAR, frequency response, black start.
Benefits
Designed for
Capability targets from the product definition — not verified field performance.
- SiC power stages
- Bidirectional power flow
- Grid-forming and grid-following modes
- Integrated protection
Specifications
Design-target parameters
Unit-bearing intent for engineering conversation — not shipping datasheet guarantees.
Typical applications
- · Campus and industrial MV interface to DC distribution
- · Utility-edge DC platforms
- · Sites needing controllable conversion density
| Parameter | Design target |
|---|---|
| DC bus voltage (target) | 800 V DC |
| Input | MV AC (project-specific class) |
| Power flow | Bidirectional |
| Interface modes | Grid-forming · grid-following |
| Maturity | Design target |
Technical overview
Architecture intent
SST replaces the conventional LV transformer with power-electronics-based conversion. MV AC in, 800V DC out. Smaller, smarter, grid-forming capable.
Scale
Supported capacity families
This product is intended for the following deployment ranges.
Standards
Designed around open standards
Architecture intent for utility-ready interoperability — not a product certification claim.
Solutions
Where buyers apply this product
Solutions that share energy-flow stages with this product.
P0
Grid Capacity
BESS + PCS + EMS orchestration to unlock capacity behind constrained grid connections.
Solution →P0
Fleet Charging
BESS + 800V DC BUS. All DC output voltages. Dynamic load management. V2G.
Solution →P0
Edge Data Centres
Compact 800V DC architecture for distributed edge deployments.
Solution →Related
Part of the DC platform
This product sits on the open DC stack with metering and energy management.
Specifying SST for your project?
Talk with Joule Junction about architecture fit, capacity family, and product intent for your site.