Solar%20Power - PowerPoint PPT Presentation

About This Presentation
Title:

Solar%20Power

Description:

Solar Power It s coming of age Interesting factoid: Solar consumes less land per MW of electricity than either coal or hydro dams The Smart Grid Surfaced five ... – PowerPoint PPT presentation

Number of Views:398
Avg rating:3.0/5.0
Slides: 70
Provided by: Terri190
Category:

less

Transcript and Presenter's Notes

Title: Solar%20Power


1
Solar Power
  • Its coming of age

Interesting factoid Solar consumes less land
per MW of electricity than either coal or hydro
dams
2
CSP (Concentrated Solar Power)(These are thermal
generating plantsjust like coal, nuclear,
natural gas)create heat, boil water to get
steam, steam turns turbine, voila!
electricity)More output with higher ambient
temperatures.
  • There are two types
  • Parabolic Troughs and
  • Power Towers

3
Parabolic Troughs
  • Linear parabolic mirrors focus light on a tube
  • Very efficient (60) utilize salt heated to 1000
    degrees
  • Insulated storage for salt
  • Then hot salt boils water, steam turns turbine,
    turbine turns generator. Voila! 24 hour solar
    electricity
  • also
  • Natural gas boiler integrated into loop as backup

4
Parabolic Trough
5
Another way to view a parabolic trough
6
Solar Trough farms in the US
7
Solar One Parabolic Trough in Nevada 64 MW
400 acres (15,000 homes)
8
Nevada Solar One Schematic Diagram
9
Abengoa Solar Trough Farms
  • Gila Bend AZ 280 MW CSP, the largest in the
    world (70,000 homes suppliedcovers 1900 acres),
    and a second 280 MW plant under construction near
    Barstow, CA (54,000 homes).

10
Abengoa Solar, Gila BendBuilt on abandoned
farmland with exhausted water source
11
Greentech Mediafor the latest in . . .well,
greentechand from National Renewable Energy
LabThermal StorageAnd the California ISO
website shows demand and renewable output.
12
Solar One Power Tower in Barstow California
  • 1981 the original Power Tower. Rebuilt as Solar
    Two but dead in 1999. Generated 10MW

13
PS-10 Power Tower in Spain
  • Mirrors focus sunlight onto a small area at top
    of 300 foot tall tower.
  • Utilizes a liquid salt as a fluid to collect and
    transport heat to boil water, steam turns
    turbine, turbine turns generator, voila!
    electricity.
  • Power 65,000 homes
  • Integral is Sevilla PV, an integrated
    photovoltaic array that will power 1800 homes

14
The PS 10, 11MW Heliostat Tower in Spain
15
Hallelujah!
16
Ivanpah Power Towerseastern California. 4000
acres. Towers 500 feet tall. 170,000 heliostats
(mirrors)390 MW Equals 140,000 homes
17
(No Transcript)
18
50 million unsuccessful attempt to relocate
endangered desert tortoises. There are desert
ecosystems--no free lunches
19
And then there are Streamers
  • It appears Ivanpah may act as a mega-trap,
    attracting insects which in turn attract
    insect-eating birds, which are incapacitated by
    solar-flux injury, thus attracting predators and
    creating an entire food chain vulnerable to
    injury and death, concluded scientists with the
    National Fish and Wildlife Forensics Laboratory
    in a report that investigated 233 bird deaths
    representing 71 species at three Southern
    California solar power plants.
  • Ivanpah employees called such immolations
    streamers, said The Atlantic.
  • US Fish and Wildlife Service Office of Law
    Enforcement staff observed an average of one
    streamer event every two minutes.

20
Crescent Dunes CSP Salt StorageFirst of its
kind near Tonapah, NV
  • 110 megawatt system
  • 10 hours of salt storage

21
But . . . Lets not forget Photovoltaic(Sunlight
directly into electricity)PV is more efficient
at cooler temperatures
  • 12,000 MW end of 2013, 41 increase over 2012
  • 36 increase from 2013 to 2014 predicted at
    midyear.
  • Big investors see big, safe opportunitiesWarren
    Buffet in Agua Caliente California, 16 Billion
    green bonds so far 2014
  • Solar City stock rose 200 in 2013
  • Solar City model. Install homeowner PV systems
    for free, then take tax credits and a portion of
    output to pay for systems.

22
And . . . . . My favorite!!!!!!!!!!!
  • THERE ARE NO MOVING PARTS IN A PV SYSTEM. THESE
    BABIES JUST SIT THERE MAKING ELECTRICITY WITH
    ALMOST NO MAINTENANCE.

23
Desert Sunlight Solar Farm 550MW180,000
homes Mojave Desert, CA 3,800 acres.
24
Topaz Solar Farm. 550MW, 180,000 homes Mojave
Desert, CA 4700 acres
25
Agua Caliente Solar PV Project-Mojave Desert
California. 290MWCompleted 2014
26
New US Power Generation 2012, 2013. Wind crashed,
natural gas increased, solar tripled
27
(No Transcript)
28
(No Transcript)
29
(No Transcript)
30
Gujarat India, 600MW currentlyIndia intends to
be a world leader in PV
31
More Gujaratthese guys are serious!
32
PV, Whos installing it?
33
Geothermal EnergyThese are thermal plants
  • Most common utilizes very hot water or steam.
    The Geysers in California.
  • About 30 square miles active site.
  • About 1000 MW continual output.

34
(No Transcript)
35
Dry Steam and Flash SteamRequires very hot
water/steam (The Geysers Model)
36
Enhanced Geothermal SystemsGot Hot Rocks?
  • AltaRock Energy Inc. at Newberry Volcano near
    Bend.
  • Drill one hole into hot (600 degrees F) dry rock
  • Fracture rock by injecting cold water
  • Drill more holes about 1500 feet away
  • Pump water down original hole and out secondary
    holes. Convert to steam and use flash (direct)
    or heat exchanger/binary systems to drive steam
    turbine and generate electricity.
  • October/November 2014 Stimulation tests.

37
Enhanced Geothermal SystemUtilizing Hot, Dry
Bedrock
38
Binary SystemUtilizes a secondary closed loop of
low boiling point substance to drive the turbine
(Probable EGS modellow water consumption.
39
U.S. GeothermalNeal Hot SpringsHarney
CountyBinary System
  • Utilizes hot water to boil secondary fluid in a
    heat exchanger.
  • 23 MW Energy (perhaps enough for 26,000 homes)
  • 136 million cost

40
Neal Hot Springs Geothermal Plant
41
Ground/Water Source Heat Pump Home Heating and
Cooling
42
(No Transcript)
43
(No Transcript)
44
Benefits
  • 50 - 70 more efficient than fossil fuel systems
  • 25 - 50 less operating cost

45
Drawbacks
  • Costs Several Times more than other
    heating/cooling systems
  • Not many installers or repair/adjustment
    companies yet

46
Lets Go Swimming
  • Hydropower used to mean big dams on
    streamsexploiting moving river water.
  • Now it also means exploiting tidal flow with
    turbines (including tidal barrages).
  • And exploiting wave action with buoys of various
    types, some floating some anchored.
  • And a third category exploits ocean temperature
    differences Ocean Thermal Energy Conversion
  • OK, lets go swimming!

47
Water Turbines (like wind turbines but tiny in
comparison)
  • Water is 784 times more dense than air 784
    times more energy per unit area of moving water.
  • Dependabletide goes in and out on a regular
    basis. Rivers flow at a dependable rate
  • Widespread possibilities.
  • In reality, still in test modeproduction costs
    still very speculative.

48
Marine Current TurbineWorlds First Commercial
Scale Tidal Turbine (Strangford Lough, N.
Ireland)1.2 MW capability (1000 homes)
49
Alstom Tidal TurbineOrkney ScotlandSeveral
actually working worldwide
50
Atlantis Resources MeyGenin Pentland Firth,
Scotland
Up to 61 of these by 2020, enough for 42,000
homes.
Potential for 269 170,000 homes
51
Tidal Barrage SystemAdvantage is that this one
can function as a battery saving impounded
water to generate electricity later
52
La Rance Tidal Barrage in France-Built 1966240MW
plant 26 efficient 62 MW output
53
Sihwa Tidal Barrage, Korea, 2011256 KW
installedI couldnt find actual output
54
Exploiting Wave Action
  • Lots of Experimenting, no commercial examples
    yetat least none that I know of, but here are
    some of the ideas.

55
Lots of Ideas
56
Pelamis Wave Energy Converter (Attenuator
typehinged barrels)OR Loch Ness Monster!750
KW per monster. No commercial farms yet
57
Ocean Power Technology PB150 Powerbuoy (Point
absorber typebobs up and down)
  • Potential 150 KW
  • output 36 54 KW
  • Another model-PB40 (40kw
  • output) demos around
  • the world for Testing.

58
Columbia Power Stingray(Point absorber
typebobs and rocks)OSU developedmakes no sense
to me!
59
Penguin Wave Energy(Point absorber typesort
of, red gizmo twirls around)
60
Worlds first grid connected wave power
stationIn Australia. Buoys move up and down,
which pump seawater ashore to turn turbines.
61
Aquamarine Power Oyster Wave Power(surge
converter type. Pumps water to shore where it
turns a turbine)
62
Ocean Thermal Energy Conversion (OTEC) (exploits
ocean temperature differences)
  • As Near as I can tell there are no operating
    systems utilizing the temperature differences in
    the ocean. In theory and in demos it works, but
    the costs are so high that nobody has yet
    invested in a commercial scale site.

63
Ocean Thermal Energy Conversion (OTEC) (exploits
ocean temperature differences)In theory it is
simple in practice it is wildly expensive
64
Finally lets save some energy withEnernet /
Cleanweb / Soft Grid
  • Definition Internet-enabled efficiency
  • A. Digital Lumens Company utilizes LED lights
    motion sensors ambient light sensors data
    internet technologies. Reduce energy consumption
    by 90 or more.

65
Enernet or Cleanweb or Soft Grid
  • Definition Internet-enabled efficiency
  • A. Digital Lumens Company utilizes LED lights
    motion sensors ambient light sensors data
    internet technologies. Reduce energy consumption
    by 90 or more.
  • B. Opower Company provides digital consumption
    alerts via smart phones, iPad apps, smart
    thermostats to make consumers aware of their
    energy use but also their neighbors use
    (anonymously). 85 unilities, 27 countries, 18
    million homes.

66
Enernet or Cleanweb or Soft Grid
  • Definition Internet-enabled efficiency
  • A. Digital Lumens Company utilizes LED lights
    motion sensors ambient light sensors data
    internet technologies. Reduce energy consumption
    by 90 or more.
  • B. Opower Company provides digital consumption
    alerts via smart phones, iPad apps, smart
    thermostats to make consumers aware of their
    energy use but also their neighbors use
    (anonymously). 85 unilities, 27 countries, 18
    million homes.
  • C. EnerNOC Company works with 14,000 customers
    in five states. When a utility nears capacity,
    contacts customers, who then reduce consumption
    for a fee. Can cut demand 30-35

67
Enernet or Cleanweb or Soft Grid
  • Definition Internet-enabled efficiency
  • C. EnerNOC Company works with 14,000 customers
    in five states. When a utility nears capacity,
    contacts customers, who then reduce consumption
    for a fee. Can curtail 30-35
  • D. Nest Labs Company sells thermostats that
    learn a house energy needs, and begins to set
    itself. At its core it is a smart phone on your
    wall. It is internet connected, so can be
    controlled remotely. It also allows devices in
    home to communicate with each other via
    internetlike CO2 detector talking with furnace.

68
Google!!!!!
  • And Google is buying em all. It is a great
    data collection resource, then that data can be
    used for . . . . .trust us says Google, just
    trust us

69
The Smart Grid
  • Surfaced five years ago then faded away
  • Pacific Northwest Smart Grid Demo. Proj.
  • Means to adjust load reduce demand
  • Bondurant WyomingUtility can control private
    water heaters temporarily
  • Portland General Electric 5MW battery bank can
    carry 500 homes for 20 minutes
  • Flathead Electric Company (MT) Differential
    Pricing. Appliances programmed to turn on when
    price is low/not turn on when price is high (4X
    higher max).
Write a Comment
User Comments (0)
About PowerShow.com