Evora EMS

System overview

Vendor-neutral control layer for battery storage, PV, meters and load banks over Modbus, with a cloud platform for operations and market access.

Local control loop

2 s control tick on the edge; active services are summed, curtailed by priority, then clamped. Runs autonomously through cloud outages.

Safety envelope

Operator-owned kW and SoC limits clamp every setpoint from any schedule or command; out-of-bounds values are clipped, flagged and reported, never applied raw.

Fail-safe behaviour

Stale schedule falls back to a safe default; emergency stop; device heartbeat watchdog re-armed by the edge so power stops on comms loss.

Offline resilience

Store-and-forward buffer for telemetry and events, 72 h / 200 MB, drop-oldest; zero-loss backfill verified in link-cut drills.

Configuration

Cloud-pulled site configuration with last-known-good cache; edits staged and applied on restart.

Services

FCR-N, FCR-D up/down, FFR, aFRR, mFRR up/down, peak shaving.

Prequalification

Automated test campaigns, validators, TSO-format evidence CSVs and application-form values for FCR-N, FCR-D, FFR, aFRR and mFRR across SE1–4, FI, NO1–5, DK1–2 and RO.

Market data

Spot and ancillary prices, procured volumes, grid frequency and tariffs for SE1–4, FI, NO1–5, DK1–2 and RO; public explorers without login.

Optimizer API

Schedule submission with versions and idempotency, exclusive leases with scope and power caps, acknowledgement tracking, per-interval settlement, deviation webhooks, public OpenAPI reference.

Register access for lease holders

Read any register, write those named in the lease, every write read back and audited.

Fleet & sites

Fleet map with health status and zone price tint, site and asset pages, guest invites with roles.

Dashboards & workflows

Drag-and-drop dashboards and a workflow builder, each with an AI builder that proposes changes for review before they apply.

AI operations

Chat agents including an operations agent with tool access, and a daily morning briefing per tenant.

Notifications

In-app feed, email, and signed webhooks for events, deviations and lease changes.

Access control

Tenant isolation, role-based access, scoped API keys, rate limits.

Register explorer

Live view of the device register surface with gated writes, immediate read-back and an audit trail.

Device health

State of health, cell voltage and temperature extremes, rack SoC spread and energy counters polled from the device map.

Warranty envelope

Cycles per day, C-rate and operating days monitored against the warranty terms of the installed product.

Site Brain

Vendor document library with page search and tighten-only limit proposals into the edge configuration.

Document vault

Typed uploads, AI extraction with human review, warranty checks inside workflows.

Remediation

Catalogue of approved healing actions with a durable ledger and operator approval.

Updates

Over-the-air updates on a read-only dual-partition OS with automatic rollback; remote terminal for diagnostics.

Alerts

Faults and alarms decoded from the device map, staleness, curtailment and emergency stop, debounced into raised/cleared pairs.

Site link

Outbound-only MQTT over mutual TLS 1.2 with a per-device X.509 identity and policy. No inbound ports, no VPN.

Hardware root of trust

TPM 2.0, secure boot and a hardware watchdog on the gateway; read-only OS with signed updates.

Hosting

Hosted on AWS in the Stockholm region (EU); GDPR compliant.

Protocols

Modbus TCP, Modbus RTU (RS485), MQTT 3.1.1 over TLS, HTTPS REST/JSON; vendor cloud APIs for EV chargers, heat pumps and PV.

Certifications & standards

ISO 27001 and NIS2 alignment; IEC 60870-5-104 and SunSpec on the protocol roadmap.