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Data Interoperability

Making different systems speak the same language

The Tower of Babel Problem

Your solar farm generates data: panel voltage, inverter temperature, energy output, weather conditions. You need to send this to:

  • ⚑Grid operator: Real-time output (IEC 61850 protocol, 100ms updates)
  • πŸ’³Billing system: Daily production totals (proprietary database, SQL format)
  • ⛓️Carbon registry: Monthly verified MWh (blockchain ledger, manual certification)
  • πŸ“ŠInvestors: Quarterly reports (Excel spreadsheet via email)

Each system speaks a different "language"β€”different data formats, update frequencies, security protocols, and APIs. A 2022 NREL study found energy companies spend 30-40% of IT budgets on data integration, not innovation.

🎯 Interactive: API Compatibility Matrix

Select a source system and target system to see their integration difficulty, required protocols, and costs.

Source System

Target System

πŸ”Œ

Select a source and target system to check compatibility

Three Layers of Data Integration

1. Protocol Layer

The "how" data moves: HTTP, MQTT, Modbus, IEC 61850, etc. Critical for real-time systems.

βœ… IEC 61850 (Grid)
100ms latency, designed for power systems
⚠️ REST API (Web)
1-5s latency, not suitable for real-time control

2. Semantic Layer

The "what" data means: Is "power" in watts, kilowatts, or megawatts? Is timestamp UTC or local?

Example: Energy Data Standards
β†’ OCHRE: Building energy (USA)
β†’ IEC 61970: Grid operations (Global)
β†’ Green Button: Consumer usage (USA)
β†’ EEBUS: Home automation (EU)

3. Security Layer

The "who" can access: Authentication, encryption, access control. Grid infrastructure is critical infrastructure.

Compliance Requirements
πŸ”’ NERC CIP: Grid cybersecurity (mandatory USA)
πŸ”’ IEC 62351: Data encryption standards
πŸ”’ OAuth 2.0: API access tokens

πŸ› οΈ Emerging Solution: Energy Data Hubs

Rather than point-to-point integrations (NΒ² connections), centralized data hubs act as translators. Projects like Project Haystack (building data), LF Energy OpenSTEF (forecasting), and Energy Web Chain (carbon tracking) provide standardized APIs.

Without Hub

  • β†’ 6 systems = 15 custom integrations
  • β†’ Each breaks when systems update
  • β†’ $50-120k per integration

With Hub

  • β†’ 6 systems = 6 hub connections
  • β†’ Hub handles version updates
  • β†’ $10-30k per connection
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