Renewable Energy
Technology Overview

      July 3, 2010
   by: Ron Miller, P.E.
Solar Energy



Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holde...
Photovoltaic (PV)




Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright...
U.S. Solar Resources




   Source: NREL

  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attrib...
Alamosa 8.2 MW PV Plant




 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the co...
Alamosa 8.2 MW PV Plant




 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the co...
PV Data
• 1 megawatt (MW) per 10 acres
• Installed price $5M – 7M/ MW
• 1 MW of PV capacity produces 1,500-
    2,100 mega...
Different PV Applications
• Fixed – stationary on rooftop or ground-
    mounted
• Single-axis tracking – tracks sun from ...
Alamosa 8.2 MW PV Plant

     Double-axis tracking PV                                Single-axis tracking PV




 Copyrigh...
Market Factors
• Oversupply dynamic emerged in 2009
    due to polysilicon production capacity
    increase and recession
...
Projected U.S. PV Installations




Tremendous growth in U.S. PV installations, with more projected
   through 2025
    Co...
PV Projected Price Decline
2007-2025 (cents/kWh)




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied ...
PV Project Size Increasing




3 large Colorado PV projects - Denver International Airport 2
   MW ground-mounted PV, Augu...
Top 10 Solar Utilities




                                       Source: Solar Electric Power Association

Xcel Energy (P...
Large Solar Utility Announcements




                            Source: Solar Electric Power Association




  Copyright...
Concentrated Solar Power
(CSP), Solar Thermal, or
Solar Trough



Copyright© 2010 Ronald L. Miller. Material can be shared...
CSP Data
• 250 MW per 1,600 acres (1 MW per 6.5
    acres)
• 250 MW with 3-hour storage per 2,000
    acres
• Installed pr...
CSP Process Flow




Source: NREL

    Similar to conventional generation plants, except solar
      provides heat to make...
CSP Collector Components




                                                                                   Source: NR...
CSP Collector Operation




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the c...
Solar Collector Operation




 Synthetic oil is circulated through solar collector to make
   steam for turbine generator
...
CSP Power Plant Components




 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the...
Andasol 1 & 2 - Spain




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the cop...
Nevada Solar One




64 MW Trough plant built for Nevada Power in Boulder City, NV
    Copyright© 2010 Ronald L. Miller. M...
CSP Growth Projection




CSP growth projected to 43,000 MW by 2025; water rights for
  cooling water could be governing f...
CSP Price Ranges 2007-2025




 Total capital investment $53 billion
  Copyright© 2010 Ronald L. Miller. Material can be s...
CSP Players
•   Flagsol (part of Solar Millennium)
•   Solel Solar Systems
•   Acciona Solar Power (was Solargenix)
•   Se...
CSP Price Trends
• With full 30% ITC available, costs for
   “next” projects in SW US will be $130 -
   $150/MWh
• Costs i...
CSP Advantages / Trends
• Storage of energy (heat) addresses peak
    energy, growing faster than base demand
• Reduces ne...
CSP Advantages / Trends
• Technology advances in primary loop
    medium increasing temperature by 100
    degrees F - hig...
CSP Market for CSP in SW US
• Arizona: 2,000 MW
• Nevada: 1,500 MW
• New Mexico/West Texas: 1,000 + MW
• Colorado: 500 MW ...
Wind Energy
Wind Turbines




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
 ...
How Do Wind Turbines Work?
U.S. Wind Resources




                                                                                     Source: NREL
...
Wind Energy Statistics
• U.S. passed Germany in 2008 as #1 wind
    producer in world at 25,170 MW
• U.S. wind power capac...
Trends
• Wind power contributed 42% of all new
    U.S. electric generating capacity in
    2008
• U.S. wind turbine manuf...
Trends, cont’d.
• Project cost increases as a function of
    turbine prices, and turbine prices have
    increased dramat...
Wind Energy Projections
• New starts in 2010 projected to slow
• Top states: Texas, Iowa, California,
    Washington, Minn...
21,000 MW Wind Capacity
Impact
• Generate >60 billion kWh in 2009
• Serve over 5.5 million American homes
• Eliminate burn...
Growth In U.S. Wind Power
Capacity




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attributi...
U.S. Overtakes Germany in
Wind Capacity in 2008




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied w...
U.S. Wind Capacity




   Source: AWEA

  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribut...
U.S. Wind Capacity By State




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to t...
Top 20 Wind Utilities




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Wind Turbine Manufacturer’s
Share




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U.S. Wind Turbine Installations
By Manufacturer




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied w...
U.S. Wind Manufacturing
Facilities




         Source: NREL




  Copyright© 2010 Ronald L. Miller. Material can be share...
Average Turbine Size Growing




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to ...
Wind Farm Size Declined Slightly




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution...
Wind
Industry
Consolidating




Source: AWEA
    Copyright© 2010 Ronald L. Miller. Material can be shared or copied with a...
Wind PPA Energy Prices
Increasing




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attributio...
Wind Project Ownership




IPPs own majority of wind projects, but recent legislation allows IOU
   ownership, which is in...
Geographic Diversity of Wind




Wind production decreases during peak power demand period;
  without demand, wind product...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Biomass Energy
Biomass Wood / Pellets To
Energy




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution...
Microgy’s Biomass to Methane
Project, Stephenville, Texas




Source: Environmental Power website
    Copyright© 2010 Rona...
Biomass Issues / Concerns
• Increasing regulation of agricultural waste
    and environmental concerns for air/water
• Con...
Biomass Feedstocks
• Agricultural and forest residues
• Primary and secondary mill residues
• Municipal solid and urban wo...
Biomass Technologies
• Gasification
   • Thermal
   • Chemical
• Incineration
• Anaerobic digestion




   Copyright© 2010...
Biomass Products
•   Electricity
•   Heat
•   Biogas
•   Ethanol
•   Biodiesel
•   Hydrogen



     Copyright© 2010 Ronald...
Biomass Energy Advantages
• Diversion of waste from landfills, saving
    transportation costs
• Relatively-high capacity ...
Biomass Projects




Source: Environmental Power website
     Copyright© 2010 Ronald L. Miller. Material can be shared or ...
Biomass Process Overview




Source: Environmental Power website
     Copyright© 2010 Ronald L. Miller. Material can be sh...
Key Success Factors
• Biomass feedstocks in close proximity to
    generator
• Net metering for full retail rate relief
• ...
Hydro



Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http...
Hydro
• Hydro static reservoir release
• Hydro pumped storage




   Copyright© 2010 Ronald L. Miller. Material can be sha...
Hydro Static Reservoir Release



 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to ...
Hydro Static Release - How It
Works




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribut...
Lower Granite Dam, Snake River




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution t...
Key Points
• Power generation depends on flow to
    reservoir (rate), pressure of water (head)
• Generation can be at odd...
Key Points, cont’d.
• Access to federal tax credits, accelerated
    depreciation incentives
• Helps to meet state renewab...
Hydro Pumped Storage
        (HPS)
Hydro Pumped Storage - How It
Works




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribut...
Basic Principle
• Two reservoirs at different elevations and
    pipeline connecting two is required
• Energy produced whe...
Advantages
• Quick startup
• Provides demand for wind farm energy
    production during night-time/off-peak
    periods, a...
HPS Project
Ludington, Michigan




  Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution ...
Questions and Answers




Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyr...
Contact Information
Ron Miller, P.E.
303-723-5465
303-748-3441 cell
ronmiller74@comcast.net
http://www.linkedin.com/in/ron...
Building A Wind
                          Farm




Copyright© 2010 Ronald L. Miller. Material can be shared or copied with...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright
holder. http://www.li...
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Renewable Energy Technology Overview

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Overview of the renewable energy technologies, how they work, key issues, key advantages

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Renewable Energy Technology Overview

  1. 1. Renewable Energy Technology Overview July 3, 2010 by: Ron Miller, P.E.
  2. 2. Solar Energy Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 2
  3. 3. Photovoltaic (PV) Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 3
  4. 4. U.S. Solar Resources Source: NREL Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 4
  5. 5. Alamosa 8.2 MW PV Plant Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 5
  6. 6. Alamosa 8.2 MW PV Plant Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 6
  7. 7. PV Data • 1 megawatt (MW) per 10 acres • Installed price $5M – 7M/ MW • 1 MW of PV capacity produces 1,500- 2,100 megawatt-hour (MWh) per year in energy • 1 MW PV provide average annual energy for 200-280 Colorado homes Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 7
  8. 8. Different PV Applications • Fixed – stationary on rooftop or ground- mounted • Single-axis tracking – tracks sun from east to west during day, more kWh than fixed • Double-axis tracking – tracks sun from east to west daily and seasonally north/south, more kWh than single-axis • Concentrating PV – lens on PV panel to intensify the sun’s brightness Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 8
  9. 9. Alamosa 8.2 MW PV Plant Double-axis tracking PV Single-axis tracking PV Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 9
  10. 10. Market Factors • Oversupply dynamic emerged in 2009 due to polysilicon production capacity increase and recession • Industry consolidation over next few years • Demand growth forecasted 38% for 2009, 59% in 2010 per Deutsche Bank Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 10
  11. 11. Projected U.S. PV Installations Tremendous growth in U.S. PV installations, with more projected through 2025 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 11
  12. 12. PV Projected Price Decline 2007-2025 (cents/kWh) Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 12
  13. 13. PV Project Size Increasing 3 large Colorado PV projects - Denver International Airport 2 MW ground-mounted PV, August, 2008 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 13
  14. 14. Top 10 Solar Utilities Source: Solar Electric Power Association Xcel Energy (Public Service) 5th place of solar utilities; strong California and Nevada presence Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 14
  15. 15. Large Solar Utility Announcements Source: Solar Electric Power Association Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 15
  16. 16. Concentrated Solar Power (CSP), Solar Thermal, or Solar Trough Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 16
  17. 17. CSP Data • 250 MW per 1,600 acres (1 MW per 6.5 acres) • 250 MW with 3-hour storage per 2,000 acres • Installed price $3.0M to $4.0M per MW • 1 MW of CSP capacity produces 3,200 MWh per year in energy • 1 MW CSP provide average annual energy for 425 Colorado homes Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 17
  18. 18. CSP Process Flow Source: NREL Similar to conventional generation plants, except solar provides heat to make steam for turbine generator Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 18
  19. 19. CSP Collector Components Source: NREL Absorber pipe receives heat from parabolic reflector, heating synthetic oil to 700-800 degrees F. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 19
  20. 20. CSP Collector Operation Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 20
  21. 21. Solar Collector Operation Synthetic oil is circulated through solar collector to make steam for turbine generator Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 21
  22. 22. CSP Power Plant Components Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 22
  23. 23. Andasol 1 & 2 - Spain Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 23
  24. 24. Nevada Solar One 64 MW Trough plant built for Nevada Power in Boulder City, NV Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 24
  25. 25. CSP Growth Projection CSP growth projected to 43,000 MW by 2025; water rights for cooling water could be governing factor Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 25
  26. 26. CSP Price Ranges 2007-2025 Total capital investment $53 billion Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 26
  27. 27. CSP Players • Flagsol (part of Solar Millennium) • Solel Solar Systems • Acciona Solar Power (was Solargenix) • Sener / ACS Cobra • Solucar R&D (part of Abengoa) • IST Solucar (part of Abengoa) • Ausra Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 27
  28. 28. CSP Price Trends • With full 30% ITC available, costs for “next” projects in SW US will be $130 - $150/MWh • Costs in the $100 -$120/MWh are expected by the end of this decade for large scale projects • R&D and other “efficiencies” will drop costs to below $100/MWh Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 28
  29. 29. CSP Advantages / Trends • Storage of energy (heat) addresses peak energy, growing faster than base demand • Reduces need for expensive, under- utilized gas peaking plants • Applicability in tandem with combined cycle combustion turbine operations • Economies of scale driving unit cost down, as typical projects are 100 – 500 MW range Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 29
  30. 30. CSP Advantages / Trends • Technology advances in primary loop medium increasing temperature by 100 degrees F - higher energy production • Demonstrated plant reliability beyond 20 years, lower Levelized Cost Of Energy (LCOE) by about 1.5 cents/kWh • CSP market in the SW US can grow to 1- 2 GW per year Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 30
  31. 31. CSP Market for CSP in SW US • Arizona: 2,000 MW • Nevada: 1,500 MW • New Mexico/West Texas: 1,000 + MW • Colorado: 500 MW after 2010 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 31
  32. 32. Wind Energy
  33. 33. Wind Turbines Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 33
  34. 34. How Do Wind Turbines Work?
  35. 35. U.S. Wind Resources Source: NREL Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 35
  36. 36. Wind Energy Statistics • U.S. passed Germany in 2008 as #1 wind producer in world at 25,170 MW • U.S. wind power capacity surged by 39% in 2009, with 9,922 MW added, after record-breaking 2008 with 8,358 MW • Achieved in two years what had previously taken 2 decades (the 10,000-MW mark reached in 2006) • Current capacity of 35,159 MW Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 36
  37. 37. Trends • Wind power contributed 42% of all new U.S. electric generating capacity in 2008 • U.S. wind turbine manufacturing expanded; now >50% components made domestically • Average turbine size continued to grow • Developer consolidation continues Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 37
  38. 38. Trends, cont’d. • Project cost increases as a function of turbine prices, and turbine prices have increased dramatically • Solutions to transmission barriers emerging, but constraints remain • Installed project costs continued to rise in 2007/2008, after a long period of decline • Policy efforts continued to affect the amount and location of wind development Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 38
  39. 39. Wind Energy Projections • New starts in 2010 projected to slow • Top states: Texas, Iowa, California, Washington, Minnesota, Oregon, Illinois • Upward pressure on wind power prices Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 39
  40. 40. 21,000 MW Wind Capacity Impact • Generate >60 billion kWh in 2009 • Serve over 5.5 million American homes • Eliminate burning of: • 30.4 million short tons of coal (enough to fill two 1,000-mile-long coal trains) • 91 million barrels of oil per year • 560 billion cubic feet of natural gas (about 9% of the natural gas used for electricity generation) Source: December 22, 2008 AWEA press release Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 40
  41. 41. Growth In U.S. Wind Power Capacity Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 41
  42. 42. U.S. Overtakes Germany in Wind Capacity in 2008 Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 42
  43. 43. U.S. Wind Capacity Source: AWEA Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 43
  44. 44. U.S. Wind Capacity By State Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 44
  45. 45. Top 20 Wind Utilities Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 45
  46. 46. Wind Turbine Manufacturer’s Share Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 46
  47. 47. U.S. Wind Turbine Installations By Manufacturer Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 47
  48. 48. U.S. Wind Manufacturing Facilities Source: NREL Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 48
  49. 49. Average Turbine Size Growing Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 49
  50. 50. Wind Farm Size Declined Slightly Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 50
  51. 51. Wind Industry Consolidating Source: AWEA Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 51
  52. 52. Wind PPA Energy Prices Increasing Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 52
  53. 53. Wind Project Ownership IPPs own majority of wind projects, but recent legislation allows IOU ownership, which is increasing Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 53
  54. 54. Geographic Diversity of Wind Wind production decreases during peak power demand period; without demand, wind production may be curtailed Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 54
  55. 55. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 55
  56. 56. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 56
  57. 57. Biomass Energy
  58. 58. Biomass Wood / Pellets To Energy Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 58
  59. 59. Microgy’s Biomass to Methane Project, Stephenville, Texas Source: Environmental Power website Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 59
  60. 60. Biomass Issues / Concerns • Increasing regulation of agricultural waste and environmental concerns for air/water • Concentrated animal feeding operations face new costly regulations • Increasing costs of MSW disposal • A number of states are implementing a cap and trade system for greenhouse gases • Federal legislation for more greenhouse standards increased in pace and scope Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 60
  61. 61. Biomass Feedstocks • Agricultural and forest residues • Primary and secondary mill residues • Municipal solid and urban wood waste • Methane emissions from landfills, manure management, wastewater treatment plants • Wood-processing residues • Animal wastes Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 61
  62. 62. Biomass Technologies • Gasification • Thermal • Chemical • Incineration • Anaerobic digestion Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 62
  63. 63. Biomass Products • Electricity • Heat • Biogas • Ethanol • Biodiesel • Hydrogen Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 63
  64. 64. Biomass Energy Advantages • Diversion of waste from landfills, saving transportation costs • Relatively-high capacity factor (80-90%) • Distributed generation near energy demand, reducing transmission losses (7-10%) • Process agricultural wastes to eliminate production of greenhouse gas (GHG) • Largely carbon-neutral Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 64
  65. 65. Biomass Projects Source: Environmental Power website Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 65
  66. 66. Biomass Process Overview Source: Environmental Power website Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 66
  67. 67. Key Success Factors • Biomass feedstocks in close proximity to generator • Net metering for full retail rate relief • Interconnection to grid for export • State RPS requirements to include biomass to drive urgency • High utilization rates • Customer demand for combined heat and power (CHP) Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 67
  68. 68. Hydro Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 68
  69. 69. Hydro • Hydro static reservoir release • Hydro pumped storage Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 69
  70. 70. Hydro Static Reservoir Release Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 70
  71. 71. Hydro Static Release - How It Works Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 71
  72. 72. Lower Granite Dam, Snake River Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 72
  73. 73. Key Points • Power generation depends on flow to reservoir (rate), pressure of water (head) • Generation can be at odds with dam’s purpose of flood control and seasonal changes • For highest price for energy produced, power needs to be at peak demand period for utility • May not be dispatchable to utility Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 73
  74. 74. Key Points, cont’d. • Access to federal tax credits, accelerated depreciation incentives • Helps to meet state renewable portfolio standards Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 74
  75. 75. Hydro Pumped Storage (HPS)
  76. 76. Hydro Pumped Storage - How It Works Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 76
  77. 77. Basic Principle • Two reservoirs at different elevations and pipeline connecting two is required • Energy produced when water released from upper to lower reservoir • Daytime, higher-priced energy produced • Energy consumed as water pumped back to the upper reservoir • Night-time, lower-priced energy used Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 77
  78. 78. Advantages • Quick startup • Provides demand for wind farm energy production during night-time/off-peak periods, allowing higher wind utilization • Provides peak energy during periods of excessive demand on the grid system • HPS not renewable, but enhances wind energy production during off-peak periods • Dispatchable energy for utility Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 78
  79. 79. HPS Project Ludington, Michigan Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 79
  80. 80. Questions and Answers Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 80
  81. 81. Contact Information Ron Miller, P.E. 303-723-5465 303-748-3441 cell ronmiller74@comcast.net http://www.linkedin.com/in/ronmiller10 “Drivers of the New Renewable Energy Transmission System” CLE Renewable Energy Transmission March 2010 conference available at link above Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 81
  82. 82. Building A Wind Farm Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 82
  83. 83. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 83
  84. 84. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 84
  85. 85. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 85
  86. 86. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 86
  87. 87. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 87
  88. 88. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 88
  89. 89. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 89
  90. 90. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 90
  91. 91. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 91
  92. 92. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 92
  93. 93. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 93
  94. 94. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 94
  95. 95. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 95
  96. 96. Copyright© 2010 Ronald L. Miller. Material can be shared or copied with attribution to the copyright holder. http://www.linkedin.com/in/ronmiller10 96

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