Embed Size (px)
Citation preview
......
.
1
Siemens Building Technologies
Renewable Energy Alterntives inThe State of Florida
Developer‘s PerspectiveJuly 26, 2007
Scott Keeley
Energy and Environmental Solutions
Siemens Building Technologies
......
.
2
Siemens Building Technologies
Current Available Sources
Landfill GasBiomassWindSolarWaste to Energy
......
.
3
Siemens Building Technologies
Landfill Gas to Electricity
• Decomposing trash produces methane which can be burned in reciprocating engines
• Landfills are required to collect and flare this gas when they reach specific size range so this gas is being flared and wasted at over 12 landfills in Florida at this time
• Counties that own these landfills receive royalty payments• Base load 92% load factor applications• 80-150 MW’s potential projects• Relatively low cost $60-80/MWHR all in costs depending on
size, gas quality, and electrical interconnection costs• Currently implementing 5.7 MW project in Manatee County
......
.
4
Siemens Building Technologies
Landfill Gas
......
.
5
Siemens Building Technologies
Biomass
• Green waste, tree trimmings from utilities, agriculture wastes, and wood from forestry management
• Fuel supply dictates project size very limited supply for projects above 15 MW
• Steam cycles • Gasification may be more expensive than
combustion, but have may have less or simpler emissions control
• 25-150 MW potential
......
.
6
Siemens Building Technologies
Carpet Gasification ProjectShaw Industries – Dalton, GA
Growth Rate, 2000-2004
Total Kilowatt Hours
......
.
7
Siemens Building Technologies
Municipal Solid Waste to Energy
• Still 87 waste to energy incineration plants operational in US
• Will newer technologies (thermal or biological) bring a cleaner solution?
• Many questions concerning true cost • Are MSW plants including in definition of renewable
sources• Waste processing including pulling out recyclable
portions of the waste can improve economics• Relative large potential source of greater than 500
MW
......
.
8
Siemens Building Technologies
Closed Loop Biomass, Solar, and Wind
• Less defined than other alternatives• Greater total potential in terms of total MW• Wind applications in other parts of the country are
very large and cost effective below 70 $/mwhr.• Wind may be less attractive in Florida due to wind
loadings, sighting issues, and design requirements to withstand hurricanes.
• Solar is more expensive and even more complicated in Florida due to hurricane design issues.
......
.
9
Siemens Building Technologies
Issues from a Developers Perspective
• Total price of electricity: Includes value of Recs.• Term: longer terms are preferred• Air Permits: Larger plants require NSPS permit• Local permits: Not in my back yard sentiment• Cost of electrical interconnection
......
.
10
Siemens Building Technologies
Questions?
