📋 Case Study
Texas ERCOT VPP: Industrial BESS + CHP + Smart Loads
Legacy CHP controllers lacked telemetry; BESS vendors used proprietary APIs; no common time-series data model across assets
🏗️ Project Overview
Aggregation of 42 industrial sites (BESS, CHP, HVAC, process loads) for ERCOT ancillary markets
🎯 Challenge
Legacy CHP controllers lacked telemetry; BESS vendors used proprietary APIs; no common time-series data model across assets
🔧 Design Approach
On-site OPC UA servers with unified semantic modeling (IEC 61850-7-420 + custom profiles), centralized ISO bidding engine, and cybersecurity-hardened zero-trust overlay network
📐 Design Diagram
AI-generated project design illustration
📐 Key Calculations
CHP Thermal-Electrical Coupling Ratio
Thermal Output (MMBtu/hr) / Electrical Output (kW)
Result: 1.85
Determines dispatch flexibility window
BESS Round-Trip Efficiency Penalty
(1 − η_bess)^2 × Energy Arbitrage Spread
Result: $2.13/MWh
Reduces net arbitrage margin
📊 Results
Enabled 122 MW aggregated resource; achieved 97.3% settlement accuracy; passed ERCOT ERS certification in 8 weeks💡 Lessons Learned
- •OPC UA + IEC 61850 bridging cut integration labor by 64%
- •Thermal inertia modeling was critical for CHP ramp compliance
- •Zero-trust segmentation prevented lateral movement during simulated red-team test
✅ Key Takeaways
- 1OPC UA + IEC 61850 bridging cut integration labor by 64%
- 2Thermal inertia modeling was critical for CHP ramp compliance
- 3Zero-trust segmentation prevented lateral movement during simulated red-team test