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project Management

A New Standard in Operational Flexibility Flexible performance features of the FlexEfficiency 50 Combined-Cycle Power Plant provide key operational capabilities, such as: • Rapid Start in Less than 30 Minutes — the FlexEfficiency 50 Combined-Cycle Power Plant offers hot start capability in less than 30 minutes with reduced fuel burn and lower emissions. • Fast Ramp Rates — plant advancements result in a 51 MW per minute ramping capability and improved load adjustment capability, all within emissions guarantees. • Improved Turndown — the new plant offers turndown of less than 40 percent of baseload plant output within emissions guarantees, with development under way to achieve 20 percent of plant load as an operational state within emissions guarantees. • Fuel Flexibility — the plant can operate on natural gas or distillate fuel, with a natural gas modified wobbe index of +/- 10 percent to address fuel flexibility needs. Flexible Starting Options to Meet Shifting Demands GE’s FlexEfficiency 50 Combined-Cycle Power Plant offers four distinct start options to provide operators with the flexibility to meet the operating demands of the day. • Conventional Start — suited for a baseload plant with no

cycling needs and where higher startup emissions are acceptable. • Smart Start Lite — suitable when some cycling is needed, but the need for low-cost starts is predominant. This also provides for low start emissions on hot starts. • Smart Start — provides for low start costs for negative spark spread, with low start emissions on hot, warm, and cold starts. • Rapid Response — provides the most flexibility with the lowest startup emissions, and is well-suited for daily starts The innovative total plant design provides a layout that improves powertrain access and increases power density by more than 10 percent over previous designs. The plant’s reduced footprint together with a shaft centerline height of 5.5 meters—among the lowest in its class—results in cost savings for foundations, enclosures, and buildings. Further design improvements, such as locating major pieces of equipment around the periphery of the power block, help reduce maintenance costs and outage times while facilitating faster construction, installation, and commissioning cycles. GE’s FlexEfficiency 50 Combined-Cycle Power Plant is an innovative, integrated approach that delivers a total energy solution—quickly, efficiently, and effectively. and stops with positive spark spread. An Innovative, Total Plant Design

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