Common Q+ Integrated Safety System Solution

Executive Summary

Westinghouse delivers a fully integrated on proven platforms — Common Q, ALSv2, Safety HMI — unified under the CQ+ architecture. This approach enables utilities to modernize safely, predictably, and without operational disruption.

Platform Overview

• Common Q: NRC-approved, large global installed base, diagnostic-rich, proven reliability.
• ALS v2: FPGA-based deterministic platform providing inherent diversity and elimination of software common-cause failure.
• Safety HMI: Qualified, cyber-secured operator interface ensuring consistent, safe display and system interaction.
• CQ+: Strategy layer integrating and extending existing assets, enabling phased modernization with licensing continuity.

Key Features & Capabilities

• Deterministic performance with FPGA-based logic (ALS v2)
• High-density scalable I/O portfolios (AC160 + ALS v2)
• Secure interfaces: AF100, HSL, unidirectional plant computer links
• Advanced diagnostics supporting reduced MTTR and minimized surveillance testing

Common Q+

• Proven
• Licensing-Ready
• Delivering inter-operability, and
• Scalability to support long-term operation!

Expanded Capabilities

• Licensing confidence through NRC-approved topical reports and decades of operational evidence
• Lifecycle cost reduction with modular upgrade paths and common spares/training
• Reduced modernization risk: no rip-and-replace, phased migration across generations
• Enhanced cyber security with hardened architecture and defense-in-depth strategy

Modernization Pathways

CQ+ enables modernization through:

• Drop-in processor modernization for Common Q
• Hybrid architecture combining Common Q and ALS v2
• Migration of I/O, logic or full subsystems based on plant licensing and lifecycle needs

Architecture Summary

CQ+ serves as the integration and evolution layer that unifies Common Q and ALS v2 technologies. It ensures compatibility, interoperability, and scalability to support long-term operation while preserving licensing foundations and reducing risks.)

Why Westinghouse

• Largest global deployment of safety platforms
• Comprehensive lifecycle management commitment
• Proven global delivery track record across AP1000, APR1400, OPR1000 and multiple upgrade programs
• Single accountable partner for architecture, licensing, deployment, and long-term modernization