Renewable Energy Technology Assessments - Kauai Island Utility ...

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Kaua’i Island Utility Cooperative Renewable Energy Technology Assessments 4.0 Renewable Energy Technology Screening • Multi-fuel Generating Technologies (Reciprocating Engines, Combustion Turbines, Microturbines, Fuel Cells) – Reciprocating engines and combustion turbines are fully commercial technologies offering competitive cost, reliable performance and good fuel flexibility. Microturbines and fuel cells do not currently offer the same cost / performance ratio, although it is projected that the gap will close over the next twenty years. The decision between engine generators and combustion turbines usually comes down to size. Combustion turbines are often preferred for applications greater than 5 MW, and engine generators for smaller sizes. Black & Veatch recommends that landfill gas, wind, hydro, direct fired biomass, and MSW mass burn be examined for the rest of this report. The conclusions of the screening analysis are summarized in the table below. 21 March 2005 4-26 Black & Veatch
Kaua’i Island Utility Cooperative Renewable Energy Technology Assessments 4.0 Renewable Energy Technology Screening Table 4-13. Renewable Technology Screening Summary Conclusions. Attractive options, regardless of timeframe Landfill gas Wind Hydro Direct fired biomass / biomass cofiring Waste to energy (MSW mass burn) Reciprocating engines (< 5-10 MW) Combustion turbines (> 5-10 MW) Possibly attractive in mid to long term pending successful technology development Ocean thermal Solar thermal Wave Waste to energy (plasma) Less cost effective options Waste to energy (refuse derived fuel) Biofuels Solar photovoltaics Microturbines Fuel cells Very limited or no potential Geothermal Anaerobic digestion (animal manure, sewage sludge) Ocean tidal 21 March 2005 4-27 Black & Veatch
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11401 Lamar Black & Veatch Corporat
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Principal Investigators: Ryan Pletk
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Kaua’i Island Utility Cooperative
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