Renewable Energy Technology Assessments - Kauai Island Utility ...
Renewable Energy Technology Assessments - Kauai Island Utility ...
Renewable Energy Technology Assessments - Kauai Island Utility ...
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Kaua’i <strong>Island</strong> <strong>Utility</strong> Cooperative<br />
<strong>Renewable</strong> <strong>Energy</strong> <strong>Technology</strong> <strong>Assessments</strong><br />
3.0 <strong>Renewable</strong> <strong>Energy</strong> <strong>Technology</strong><br />
Options<br />
Table 3-11. Developable Potential from Biodiesel for Power Production.<br />
Year <strong>Energy</strong>,<br />
GWh<br />
Capacity,<br />
MW<br />
Notes<br />
3 2.4 0.5 B20 blend in one 2.7 MW diesel engine, 50 percent<br />
capacity factor, using 0.18 million gallons per year<br />
(MGY) of biodiesel<br />
5 7.1 1.6 B20 blend in three 2.7 MW diesel engines, 50 percent<br />
capacity factor, using 0.5 MGY<br />
10 85 19.3 B20 blend in all existing thermal plants except Kapaia<br />
combustion turbine, 50 percent capacity factor, using<br />
6 MGY<br />
20 239 54.6 <strong>Energy</strong> potential from 17.8 million gallons per year, 50<br />
percent capacity factor<br />
Apart from power production, one of the most readily deployable opportunities<br />
for biodiesel is to establish small scale production operations at agricultural centers on<br />
the island, namely farms and plantations. Most farm equipment runs on standard No. 2<br />
diesel fuel, and is capable of running on biodiesel in some blend. With proper<br />
information and support, many farmers and agricultural producers on <strong>Kauai</strong> could easily<br />
develop and operate biodiesel production facilities to meet their own fuel needs as well as<br />
supplement the fuel supply of the rest of the island. Such an approach might enable<br />
development of a larger biodiesel infrastructure through a “grassroots” staged approach<br />
to development.<br />
3.4 Waste to <strong>Energy</strong><br />
Waste to energy (WTE) technologies can use a variety of refuse types and<br />
technologies to produce electrical power. The direct use of municipal solid waste (MSW)<br />
and refuse derived fuel (RDF) to generate power are addressed in this section. An<br />
emerging technology, plasma arc, is also explored. Landfill gas is also often considered<br />
WTE, and this technology was discussed previously.<br />
Economic feasibility of WTE facilities is generally difficult to assess. Costs are<br />
highly dependent on transportation, processing, and tipping fees associated with a<br />
particular location. Values given in this section should be considered representative of<br />
the technology at a generic site.<br />
21 March 2005 3-32 Black & Veatch
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