Technology

The grid as a marketplace for flexibility.

Our patented technology turns island grids, micro-grids and grid cells into real-time marketplaces for energy and flexibility. Easy to scale and integrate into larger grid structures.

Two signals

Grid physics, translated into prices.

State variables such as frequency or energy flow reflect the situation in the grid. We turn them into signals that every grid participant can receive, understand and act on.

Balance Indicator (BI)

Do supply and consumption match?

Derived from the energy flow into or out of a grid area, or from the grid frequency in island grids or whole systems. When the sun shines and the wind blows, the BI shows low prices. Flexible consumers benefit by drawing power at those times.

ScarcitySurplus
Congestion Indicator (CI)

Is the grid reaching its limits?

Shows when transformers or lines are reaching their physical limits, for example during high generation at midday or high load in the evening. Devices then shift to other times before a bottleneck occurs. This saves on grid expansion.

freeLoad 72 %Limit

Smart devices

A small software agent for every device

The agent can be integrated into standard device controllers at very low unit cost. It charges the EV when power is cheap, while respecting user settings and the requirements of the charging technology. Learning algorithms continuously improve the results.

  • Integrates seamlessly into existing energy systems
  • Easy to operate, maintain and override in an emergency
  • No private data leaves the building
Heat pumpPre-heats when power is cheap. The heat store becomes a virtual battery.
Electric carCharges by the desired departure time, preferably with power from sun and wind.
Battery storageCharges during surplus, feeds in during scarcity – serving the grid and the system.
ProcessesCooling, pumps and water treatment preferably run when it is cheapest. Heat, cold and water are easy to store.

Comparison

Decentralised instead of remote-controlled.

ComparisonCentral remote controlEasy Smart Grid
CommunicationRequires a complex two-way communication network, each device addressed individuallySignal derived from the existing power grid and passed on to the user
Response timeMinutes to quarter-hoursReal time, down to seconds
DataCustomer data flows to the control centreCustomer data stays with customers and their devices
ResilienceIf the control centre fails, the system stopsEvery device keeps working, using local information
ParticipantsOnly large installations, because of high barriers to entryAny flexibility, of any size and duration, is put to productive use

Automatic merit order

The market ranks flexibility by cost.

All devices take part in the market directly and act in the way that is cheapest for their owners. The market is fully transparent and creates an order in which the cheapest flexibility is used first. This lowers system costs for everyone.

Example: who responds first?
Battery storage
Heat pump
Electric car
Washing machine
Bar length: price threshold at which the device shifts its load (illustration).

Open and interoperable

Compatible with European standards.

In the EU project InterConnect, we integrated our solution into the SAREF ontology (Smart Appliance Reference Standard) and the Semantic Interoperability Framework. External signals such as dynamic energy and grid tariffs complement local optimisation.