Case Study: East River Electric Power achieves zero downtime and uninterrupted power delivery with NEC Corporation's ExpressCluster high-availability solution

East River Electric Power - Customer Case Study

East River Electric Power Cooperative, a wholesale electric power supplier serving 250,000 consumers across eastern South Dakota and western Minnesota, required 100% availability for its critical Demand Response System (DRS) because downtime can cost about $20,000 per hour. Their existing automation system lacked failover recovery, so East River turned to NEC Corporation and adopted NEC ExpressCluster X R3 LAN Edition along with NEC Express5800 servers and NEC Professional Services to deliver continuous protection and fast recovery.

NEC Corporation implemented ExpressCluster X R3 with synchronous data mirroring on NEC Express5800/R320a-E4 fault-tolerant and R120a-2 general-purpose servers, plus onsite professional services for deployment and training. The solution provided rapid failover, nearly effortless major-system upgrades, simpler maintenance, and faster mirror rebuilds; since installation East River has experienced no overall system downtime and continuous operation of its business-critical applications, avoiding costly outage-related wholesale power expenses.

East River Electric Power

Tim Dockendorf

Communications and Control Systems Administrator