Download - Renewable Energy Applications
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World Energy Use by Fuel
2008
Liquids35%
Natural Gas23%
Coal28%
Nuclear6%
Renew ables8%
Liquids
Natural Gas
Coal
Nuclear
Renew ables
2030
Liquids32%
Natural Gas23%
Coal28%
Nuclear6%
Renew ables11%
Liquids
Natural Gas
Coal
Nuclear
Renew ables
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Goals of this Project
• BPM – Final document for Stantec– Checklist and Comparison Chart
• Renewable energy options– Most commonly used options
• Option Analysis– Location and Efficiency– Cost and Feasibility– Downsides and Environmental Impacts
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Stantec’s Challenge
• Limited number of renewable energy “experts”
• Lack of standardized document or “textbook”
• Ample supply of information available
• Stantec would benefit from a BPM for starting engineers
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Decision Tree
What are your energy needs?
Electricity Generation Heating/Cooling
Identify Available Options
Geothermal Biomass
Identify Available Options
Solar Wind Geothermal Biomass Hydropower
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Renewable Energy Options
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Research
• Searched through sources to find:– Best Location– Cost Range– Efficiency– Downsides/Environmental Impacts– Case Studies
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Chart
CSP Solar Power Offshore Wind Power
Technology - Parabolic Trough - Linear Fresnel Reflector- CSP Dish- CSP Tower
- Wind turbines are sited off the coast in waters up to 30m deep.
Location - In the sunbelts of the world, and general between the latitudes of 40°North and 40° South. The American Southwest has a very large potential for CSP
- The U.S. North east and Pacific Northwest from Oregon to Alaska are suitable.
Cost - Power cost around $0.12 per kWh of power- Capital cost of plants vary between $2M and $5M per
MW of capacity
-Power costs $0.09 per kWh. - Capital cost range between $2M and $3M per MW of
capacity
Efficiency - Varies between technologies but is generally between 20-40%. Energy storage systems can increase the efficiency.
- Capacity factors range between 25-40% however offshore wind is generally high due to stronger, more consistent, and less turbulent winds offshore.
Downsides - Large CSP plants take up large areas of land, however are often located in deserts.
- Concentrated beams of sunlight can kill birds and insects
- Visual aesthetics of shorelines are of concern- 0.001% of bird deaths are accounted from wind turbines- Marine ecosystems can be harmed, but initial research
shows it to be very low.
General Info. - Many downsides can be mitigated and the used of deserts and increase the value of previously degraded and unusable land.
- 78% of U.S. electricity demand comes from the 28 states with shorelines.
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Chart
CSP Solar Power Offshore Wind Power
Cost - Power cost around $0.12 per kWh of power- Capital cost of plants vary between $2M and $5M per MW of capacity
-Power costs $0.09 per kWh of power. - Capital cost range between $2M and $3M per MW of capacity
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ChecklistConcentrated Solar Power
___ CSP power plants need a large area’s of land, up to hundreds or thousands of acres.___ Cost of CSP plants range from $2M to $5M per MW___ Cost of electricity from CSP plants is around $0.12/kWh but is expected to drop in the near future due
to increased research, manufacturing, and development. ___ The best locations for CSP plants are often deserts which are unusable otherwise___ Current CSP technologies can convert 20-40% of sunlight___ When thermal storage units are incorporated into a CSP plant it can increase its capacity factor and
continue to produce energy in the dark___ CSP plants emit no greenhouse gases during operation
Offshore Wind
___ Current technology only allows offshore turbines in water up to 30 Meters deep___ Minimum wind speeds of 8 mph are required for a turbine to generate electricity___ The coast of the Northeastern U.S. and the Cost of the Pacific Northwest from Oregon to Alaska are
good locations to site offshore wind farms___ Farms cost around $2.4M per MW of capacity and electricity costs $.095/kWh___ Wind turbine capacity factors are around 30% however strong and more consistent offshore winds
could increase that number.___ Farms can be properly sited to avoid fishing grounds and shipping lanes___ There is often public concern for the marine environment and visual aesthetics
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BPM
• “Textbook” format– Detailed description of information provided in
checklist and chart– Information is cited– Various case studies for each of the
technologies
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Design Example
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Questions