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Technology

Digital Power

For a century, electrical infrastructure was largely passive. Distributed energy needs active power electronics and a software layer that can reconfigure the site without rewiring every panel.

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The shift

From passive conductors to active control

Transformers, cables, and switchgear conducted power. They did not shape it in real time. Solid-state conversion, digital protection, and grid-forming capable PCS turn the electrical plant into an addressable system — designed to grid-form, island, export-limit, and respond to site and utility signals through a shared protocol stack.

Digital power, in the Joule Junction frame, means every major device on the DC BUS is part of one architecture: physical backbone, measurement, and energy management.

Physical layer

DC BUS

The physical DC backbone. SST, BusWay, PCS, protection, and grid interface in one architecture — current flagship 800 V DC.

  • Solid State Transformer (SST)
  • DC BusWay
  • Power Conversion System (PCS)
  • Protection, controls
  • DC arc protection — native DC arc detection, digital protection relays

Application layer

Energy Management

Software that optimizes. The layer customers evaluate first.

  • Forecasting — solar generation, load, price signals
  • Tariff optimisation — time-of-use, demand charges
  • Battery optimisation — charge/discharge scheduling
  • Solar optimisation — self-consumption vs export
  • EV scheduling — fleet charge management
  • Load shifting — peak shaving, demand response
  • Carbon reporting — scope 1/2 tracking, compliance
  • AI optimisation — continuous dispatch improvement
  • Multi-site management — portfolio-level visibility
  • VPP participation — DER aggregation, market bidding
  • ISO 15118-20 V2X control — V2G, V2H, V2L, V2B

Protocol layer

Joule Junction OS

Native IEEE 2030.5 architecture. The digital layer across DC BUS, Metering, and Energy Management.

IEEE 2030.5

Smart energy profile — DER, BTM, demand response, VPP.

OCPP 2.0.1 / 2.1

EV charging communication.

ISO 15118-20

V2X (V2G, V2H, V2L, V2B).

Building with digital power architecture?

Talk with Joule Junction about DC BUS design, metering, and energy management.

Talk to UsEnergy Management