Connect, meter and control batteries, standby generators and flexible loads at each site. EpiSensor provides the physical operating layer for your VPP; your platform keeps portfolio optimisation, bidding, trading and settlement.
Batteries, standby generators and flexible loads respond to a programme in different ways. Bring the measurements, equipment state and control interface for each asset into one site data model.
A controller for each asset that responds, a meter for the rest of the site, and one Gateway running Edge. Each ZDR meters its own supply, so the response is measured by the device that made it.
Meters the asset's supply to Class 0.5S, samples grid frequency at least every 100 ms and responds on site: a relay for a load or a generator, or a Modbus set point for a battery or UPS.
Meters the point of connection and the loads that do not take part, so each event can be read against the whole site.
Connects the controllers and meters over Zigbee, runs Edge for dashboards, history and local rules, and carries data to the provider's platform.
When grid frequency falls, a frequency-response service needs contracted assets to cut demand or add supply within seconds. The ZDR measures frequency at the site and acts on it there, so the response does not wait for a message from a platform.
EpiSensor provides local measurement, limits, automation and response records. Your platform decides how the portfolio participates, then sends the agreed site instructions and receives measured results.
Configure devices, enforce equipment limits, inspect data and run time-critical rules on the Gateway with Edge.
Gateway running EdgeUse a commissioned project integration for telemetry and dispatch. Your platform retains forecasting, portfolio optimisation, bidding, trading, market registration and settlement.
Compare battery state of charge with charging, discharging and solar generation. Use the time controls and sensor list to see how the system responds through the day.
Explore data tools in Edge
Readings, schedules and equipment state trigger actions in Edge. A partner platform can dispatch through a commissioned integration, with permissions, limits, expiry, readback and the offline state agreed for every command.
Automation in Edge
Each guide sets out the measurements, the control interface, the safe states and the commissioning checks for one kind of asset.
A protocol is only the starting point. Test the instruction, transport acknowledgement, equipment state and measured response against the target programme, then record ownership, failure behaviour and support.
ZDR-20 answers under-frequency through its own relay, rated 4 A at 250 V AC, to drop a load or call a standby generator. ZDR-21 does the same and adds GPS time sync and 20 ms recording around each event, which several programmes ask for as evidence. ZDR-22 follows grid frequency continuously and sends a changing set point to a battery or UPS over Modbus. Every model meters its supply to Class 0.5S.
The ZDR samples grid frequency at least every 100 ms, at 0.01 Hz resolution, and acts on site, so the response does not wait for a platform message. The time a programme measures also includes the asset's own reaction, so the complete installation is tested against the programme's own procedure.
No. Edge monitors assets, analyses data and runs local automation without a VPP platform. EpiSensor does not supply market bidding, trading or commercial settlement; connect your chosen VPP, DERMS, aggregator or utility platform when those services are required.
Yes, through a commissioned project integration. Depending on the agreed design, Edge can expose authenticated data through its API, post selected readings over HTTPS, use an approved MQTTS flow or expose mapped readings to an approved BMS or SCADA client over Modbus TCP. Agree identities, units, timestamps, commands, permissions, retries and receiver-side checks before rollout.
Tell us which assets your platform needs to monitor or control, the programme requirements and the interface you expect. We will define and test the site operating contract with you.
