Electricity Generation From Lignite Mark K. Thompson Basin Electric Power Cooperative Leland Olds Station.
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Electricity GenerationFrom Lignite Mark K. Thompson
Basin Electric Power CooperativeLeland Olds Station
Electricity GenerationFrom Lignite Mark K. Thompson
Basin Electric Power CooperativeLeland Olds Station
Over 2.5 million people served
with ND lignite-based electricity
Over 2.5 million people served
with ND lignite-based electricity
Economic Impact
Every 4 megawatts
requires approximately 3
jobs
Economic Impact
Every 4 megawatts
requires approximately 3
jobs
LigniteLignite
A low-cost abundant resource for generation of electricity
A low-cost abundant resource for generation of electricity
Basics of generating electricity
Commercial generating technologies
Lignite as a fuel source
Controlling emissions
Generating electricity
Summary
Basics of generating electricity
Commercial generating technologies
Lignite as a fuel source
Controlling emissions
Generating electricity
Summary
AgendaAgenda
N S
Lines of forceLines of force(Flux)(Flux)
MagnetMagnet
Magnetic Field Around Bar MagnetMagnetic Field Around Bar Magnet
CoilCoil
MagnetMagnet
MeterMeter(Galvanometer)(Galvanometer)
Producing Electricity From MagnetismProducing Electricity From Magnetism
To pushbladeson a shaft
To pushbladeson a shaft
Which spinsa magnetinside a
coil of wire
Which spinsa magnetinside a
coil of wire
ProducingElectricity!ProducingElectricity!
A sourceof energysuch aslignite
A sourceof energysuch aslignite
Basics of How Electricity is MadeBasics of How Electricity is Made
Portable Generators?Portable Generators?
One light bulb litOne light bulb lit Eight light bulbs litEight light bulbs lit
How Many Bicyclists?How Many Bicyclists?
To produce as much electricity as North Dakota’s seven power plants... And they would need to keep pedaling for 24 hours a day / seven days a week
1. 10,000 2. 500,000
3. 3,000,000 4. More than 3 M
To produce as much electricity as North Dakota’s seven power plants... And they would need to keep pedaling for 24 hours a day / seven days a week
1. 10,000 2. 500,000
3. 3,000,000 4. More than 3 M25%25%25%25%
1111
25%25%25%25%
2222
25%25%25%25%
3333
25%25%25%25%
4444
How Many Bicyclists?How Many Bicyclists?
It would take 8.9 million people on bicycles to produce as much electricity as North Dakota’s seven power plants . . . And they would need to keep pedaling for 24 hours a day / seven days a week!
It would take 8.9 million people on bicycles to produce as much electricity as North Dakota’s seven power plants . . . And they would need to keep pedaling for 24 hours a day / seven days a week!
Other Primary Sources of Energy For Generation of ElectricityOther Primary Sources of Energy For Generation of Electricity
Wind - windmill or wind turbine
Water - water wheel or water turbine
Diesel - diesel engine
Natural gas - gas turbine
Wind - windmill or wind turbine
Water - water wheel or water turbine
Diesel - diesel engine
Natural gas - gas turbine
Basics of How Electricity is MadeBasics of How Electricity is Made
To pushbladeson a shaft
To pushbladeson a shaft
Which spinsa magnetinside a
coil of wire
Which spinsa magnetinside a
coil of wire
ProducingElectricity!ProducingElectricity!
A sourceof energysuch as
wind
A sourceof energysuch as
wind
MinotMinot
EdgeleyEdgeley
HighmoreHighmore
ChamberlainChamberlain
RosebudRosebud
PipestonePipestone
WiltonWilton
Basin Electric’s Wind FacilitiesBasin Electric’s Wind Facilities
450 MW Nameplate capacity
GrotonGroton
To turnbladeson a shaft
To turnbladeson a shaft
Which spinsa magnetinside a
coil of wire
Which spinsa magnetinside a
coil of wire
ProducingElectricity!ProducingElectricity!
A sourceof energysuch aswater
A sourceof energysuch aswater
Basics of How Electricity is MadeBasics of How Electricity is Made
Water-Hydro GenerationWater-Hydro Generation
Renewable, clean and reliable….but expensive and hard to build today
To turna shaftTo turna shaft Which spins
a magnetinside a
coil of wire
Which spinsa magnetinside a
coil of wire
ProducingElectricity!ProducingElectricity!
A sourceof energysuch as
a diesel engine
A sourceof energysuch as
a diesel engine
Basics of How Electricity is MadeBasics of How Electricity is Made
To turnblades on
a shaft
To turnblades on
a shaft
Which spinsa magnetinside a
coil of wire
Which spinsa magnetinside a
coil of wire
ProducingElectricity!ProducingElectricity!
A sourceof energysuch as
burning gas
A sourceof energysuch as
burning gas
Basics of How Electricity is MadeBasics of How Electricity is Made
Most Common Commercial Technology for Large-Scale Electrical GenerationMost Common Commercial Technology for Large-Scale Electrical Generation
Affordable, reliable, increasingly clean
Exploring lignite as a fuel sourcewith steam turbine generators
Exploring lignite as a fuel sourcewith steam turbine generators
Improving Mother Nature Improving Mother Nature
Parameters of ND Lignite as found in nature
Heating value 6,000 to 7,000 BTU / Lb (other coals 8,000 to 12,000 BTU / Lb)
Ash content in ND lignite 6% to 12% as burned
Sodium content high in many areas – contributes to challenges
Deposits in boiler
Other mineral constituents
Parameters of ND Lignite as found in nature
Heating value 6,000 to 7,000 BTU / Lb (other coals 8,000 to 12,000 BTU / Lb)
Ash content in ND lignite 6% to 12% as burned
Sodium content high in many areas – contributes to challenges
Deposits in boiler
Other mineral constituents
Coal-Drying ProjectCoal-Drying Project
Coal Creek Station
Low temperature waste heat is being used to reduce moisture in lignite
Increases plant efficiency and reduces emissions
Coal Creek Station
Low temperature waste heat is being used to reduce moisture in lignite
Increases plant efficiency and reduces emissions
Emissions ControlEmissions ControlEquipmentEquipment
Hot AirHot Air BoilerBoiler
WaterWater CondenserCondenser
SteamSteamTurbineTurbine
SteamSteam
GeneratorGenerator
PulverizedPulverizedCoalCoal
How Electricity is MadeUsing a Steam TurbineHow Electricity is MadeUsing a Steam Turbine
BunkerBunker
BurnersBurnersCoalCoalFeederFeeder
PulverizerPulverizer
LiftLiftLineLine
Lignite-Fired BoilerLignite-Fired Boiler
2,4002,400PoundsPounds
2,400 poundsper square inch2,400 poundsper square inch
2,400 PSI Steam Pressure2,400 PSI Steam Pressure
• Plant Transformers• Auxiliary transformers for
plant power• Step-up transformers for
sending power out
• Plant Transformers• Auxiliary transformers for
plant power• Step-up transformers for
sending power out
Lignite boiler emissions in North Dakota
are controlled with up-to-date technology
Lignite boiler emissions in North Dakota
are controlled with up-to-date technology
0
10
20
30
40
50
60
70
80
90
100
North Dakota (now) North Dakota (2012)
73%
Percent of Scrubbed CapacityPercent of Scrubbed Capacity
ND Power Plants Fitted With ScrubbersND Power Plants Fitted With Scrubbers
98%
0
200
400
600
800
1000
1200
3887 MW Total3887 MW Total
MW
Cap
acit
yM
W C
ap
acit
y
1,100
900
673650
420
10044
Lewis &Clark
Heskett Coyote LelandOlds
Young AntelopeValley
CoalCreek
Sources of Electricity from LigniteSources of Electricity from Lignite
Capacity Requirement =2 KW per person
650,000 persons X 2 KW per person= 1,300,000 KW or 1,300 MW
North DakotaNorth Dakota
A Rule of ThumbA Rule of Thumb
Bismarck / Mandan - 190 MW
Fargo / Moorhead - 350 MW
St. Cloud - 335 MW
Minneapolis / St. Paul Area - ???? MW
1. 500 MW 2. 1,000 MW
3. 2,500 MW 4. 6,000 MW
Bismarck / Mandan - 190 MW
Fargo / Moorhead - 350 MW
St. Cloud - 335 MW
Minneapolis / St. Paul Area - ???? MW
1. 500 MW 2. 1,000 MW
3. 2,500 MW 4. 6,000 MW
Estimated DemandEstimated Demand
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Minneapolis / St. Paul Area - 6,000 MW
Minneapolis / St. Paul Area - 6,000 MW
Estimated DemandEstimated Demand
About one-third of MN’s electricity comes from ND and the percentage is higher in rural MNAbout one-third of MN’s electricity comes from ND and the percentage is higher in rural MN
SummarySummary
Lignite is a low-cost, abundant resource for the generation of electricity that is beneficial for the region
Lignite is a secure and reliable source of energy
Lignite is a low-cost, abundant resource for the generation of electricity that is beneficial for the region
Lignite is a secure and reliable source of energy
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