Wood River Electrical Plan - Idaho Power


Wood River Electrical Plan - Idaho Power

Wood River Electrical PlanCommunity Advisory CommitteeMeeting #1 and Facilities Tour

Welcome and Introductions• Idaho Power Company representatives– Idaho Power Vice President of Delivery Engineering andOperations, Lisa Grow– Project Leader, Kent McCarthy– Idaho Power project team members• Facilitator – Mike Pepper, KMP Planning• Advisory Committee members• Other attendees2WREP Jan 07.ppt

Purpose of the Meeting• To initiate the Wood River Electrical Plan publicprocess• To orient the Advisory Committee to:– Role and responsibilities– Steps in the planning process– Committee meetings format and purpose– Suggested ground rules• To tour related power facilities• To provide background and education3WREP Jan 07.ppt

Meeting Agenda• Welcome and introductions• Orientation– Purpose of the meeting– Purpose of the project– Advisory Committee role and responsibilities– Planning process general steps• Bus tour with presentations / Q & A– Idaho Power Co. background– Tour of related power facilities– Electricity “101”– Next steps / Adv. Committee Mtg #24WREP Jan 07.ppt

Purpose of the Project• To create a clear and documented electrical energysupply plan to serve the load needs of the Wood RiverValley from now through buildout– “The public process is the starting point of all electrical supplyplans and any resulting transmission rights-of-way andsubstation siting requirements”5WREP Jan 07.ppt

Tour Overview• We are going to visit 3 electrical facilities today.– Fossil Gulch Wind Park– Twin Falls Power Plant– Midpoint Substation6WREP Jan 07.ppt

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Advisory Committee Orientation• Advisory Committee purpose:– to gain support for and lend credibility to any electrical energysupply improvements necessary to serve the Wood RiverValley• Advisory Committee role:– to propose ideas and solutions to Idaho Power’s load servingneeds– To propose combinations of transmission, energy storage anddemand side management.9WREP Jan 07.ppt

Advisory Committee Orientation• AC Responsibilities:– Attend AC meetings and participate fully– Review materials provided– Effectively represent your organization– Keep your organization informed10WREP Jan 07.ppt

General AC Meetings Outline1. Orientation and Education• Initiate the process and orient the Advisory Committee• Tour of related electrical system facilities• Basic electrical service function and operation2. Education (continued): existing conditions and goals• Wood River existing conditions• Demand Side Management• Rates & Regulatory3. Education (continued): the range of possible alternatives4. Alternatives screening: identify feasible alternatives5. Alternatives evaluation: determine most feasible alternative(s)6. Recommendations: develop consensus for a recommended electrical plan tomeet Idaho Power Company and Wood River resident needs11WREP Jan 07.ppt

Suggested Ground Rules“Listen”L isten to others (quiet your thoughts, avoid side talk)I statements (“I should, I feel, etc.)S eek “Win Win” solutions (for all stakeholder needs)T reat others with respect (as you wish to be treated)E courage others (welcome their ideas)N ow (stay present, participate fully to reach consensus)12WREP Jan 07.ppt

“Working Apart”Principles & Practices• Tunnel vision• Each of us follows our own plan• Vague performance goals• Someone is always excluded• We have to keep secrets from each other• Whining is okay occasionally, but yelling is better• Critique the plan to justify non-performance• Talk past each other and obstruct each other• Emotional fragilitySource: the Boeing Company13WREP Jan 07.ppt

“Working Together”Principles & Practices• Compelling vision• Clear performance goals• “ONE PLAN”• The data sets us free• No secrets, everyone is included• Whining is OK…occasionally• Propose a plan, find a way• Listen to each other and help each other• Respect and appreciate every person on the team• Emotional resilience• Have fun… enjoy the journey and each otherSource: the Boeing Company14WREP Jan 07.ppt

The Goal• To develop “One Plan”– In the meeting, and…– Outside the meeting• To communicate the plan consistently• To support the committee’s efforts• To support the plan’s outcome15WREP Jan 07.ppt

Idaho Power Co. Background• Largest regulated electric utility in Idaho• A 91 year history• Serves over 470,000 customers• 1,800 employees• Primarily driven by 17 hydropower plants• Partner in 3 coal projects• 2 combustion turbine plants• 4,700 miles of transmission line pole mile• 25,500 miles of distribution line pole miles• 287 active substations16WREP Jan 07.ppt

BPA, Avista& PacifiCorpIdaho PowerSystemBoardmanSnake RiverHydro FacilitiesPacifiCorp andNorthwesternJim BridgerPacifiCorp17ValmySierra PacificPacifiCorpWREP Jan 07.ppt

Electric Power 10118WREP Jan 07.ppt

Voltage• Voltage is a measure of electrical “pressure”– One volt is the “pressure” which will produce a current of oneampere against a resistance of one ohm.– Think of voltage as being like water pressure in a hose.– Think of resistance as being like the friction inside the hose.19WREP Jan 07.ppt

Current• The movement of electrons through a conductor;measured in amperes or amps– An amp is the practical unit of electric currentflow. If a one ohm resistance is connected to a onevolt source, one ampere will flow.– Current is analogous to water flow in a hose.= ~20WREP Jan 07.ppt

Power• The rate at which work is done.• Power is the voltage times the current– Voltage x current = power (plus a few other little factors thrownin)• The basic unit of measure for power is the watt (w).– 1,000 watts = 1 kilowatt = 1 kW– 1,000,000 watts = 1 megawatt = 1 MW• The maximum amount of power a transmission line cancarry is referred to as Capacity– If the maximum power a transmission line can carry is 500megawatts, we say it has a capacity of 500 megawatts or 500MW.21WREP Jan 07.ppt

Power• On Idaho Power’s system, 1 megawatt represents theamount of power used by 650 homes on an average day.– On a peak day (late afternoon in the summer), the same 650homes can use 2 to 4 megawatts in areas with heavy airconditioner use.• This is because of air conditioning running at the same timeas other appliances.• In the middle of the night, the power usage in a home ismuch lower.– Late afternoon winter peak is also higher than an average day.• Wood River Valley winter peak occurs in morning andafternoon22WREP Jan 07.ppt

Energy• Energy is power multiplied by time.– In the electric utility industry, it represents the amount ofpower used or transmitted over a given amount of time.– Energy is the capacity of a physical system to do work.– The basic unit of measure for electrical energy is the watthour(w-hr).• 1,000 watt-hours = 1 kilowatt-hour = 1 kWh• 1,000,000 watts-hours = 1 megawatt-hours = 1 MWh23WREP Jan 07.ppt

Capacity vs Energy• An electric system is designed to address twophysical quantities:– Capacity– Energy• Capacity is used to describe the maximum amount ofelectricity something is capable of carrying at anyinstant– A transmission line might be large enough to carry100,000,000 watts of electricity (100 megawatts)– A generator might be designed to produce 50,000,000watts (50 megawatts)24WREP Jan 07.ppt

Capacity vs Energy• Energy describes what actually flows on a power systemover a particular time period.– That same transmission line might be actually carrying1,000,000 watts for 1 hour. That would be 1,000,000 watthoursor 1 megawatt-hour.• If 1,000,000 watts flowed for 2 hours, that would be1,000,000 watts x 2 hours = 2,000,000 watt-hours or 2megawatt-hours and so on.25WREP Jan 07.ppt

Capacity vs Energy• Your power bill at home shows your energy usage inkilowatt-hours (thousand watt-hours).– If you used 1,000 watts of electricity for 1 hour that would be1 kW-hour.• A 100 watt light bulb turned on for 10 hours will use 1,000watt-hours of energy or 1 kWh. That would cost you about6 cents.In 1887, Hailey residents werecharged $5 per light per monthfor their electricity. That wouldhave cost me $285 per month formy 57 light bulbs!26WREP Jan 07.ppt

Highway Analogy• Draw a line across a highway– In one direction, only 1 car can cross this line at a time.So the capacity of that highway at any instant is 1 car– This is like the capacity of a wire (kilowatts)27WREP Jan 07.ppt

Highway Analogy• Now, if we add time to the equation and a total of 500cars can cross that line in an hour, we can say we haveaccommodated 500 car-hours.– Or if 500 cars per hour cross the line for 2 hours we have 1,000car-hours• This is analogous to energy (kilowatt-hour)28WREP Jan 07.ppt

Highway Analogy• Say more people need to travel that highway to getto work. We must increase the number of lanes toaccommodate the additional traffic = $$$.– We would be spending money to increase the capacity ofthe highway for a need that only lasts 2 hours per day.– Ever drive on I-84 between Nampa and Boise at 7:30a.m.? 2:00 a.m.?• Alternatively, we could decrease the need for peopleto travel the highway.– Decrease the demand so you don’t need additional lanes.– Demand Side Management29WREP Jan 07.ppt

Back to Idaho Power’s System• As Idaho Power’s peak load grows, we can1. Increase the system capacity to bring in more energy.• new power lines• additional generation or,2. Decrease the load during peak hours so we need less newcapacity.• This is called demand response or,3. Decrease the load via energy efficiency.• Idaho Power calls for using all three of the above in itsIntegrated Resource Plan30WREP Jan 07.ppt

Idaho Power Voltage Levels• 120/240 to 480 volts (120/240 to 480 v) – Whattypically enters your home or business.– Transportation = your driveway31WREP Jan 07.ppt

Idaho Power Voltage Levels• Distribution Voltage –12,470 volts to 34,500volts (12.47 kV to 34.5kV)– You see these linesrunning up and downour streets.– Transportation =residential street32WREP Jan 07.ppt

Idaho Power VoltageLevels• Sub-TransmissionVoltage – 69,000 to161,000 volts (69 kV to161 kV)– For transmitting energybetween substations– Transportation =boulevard or statehighway33WREP Jan 07.ppt

Idaho Power Voltage LevelsTransmission voltages• 230,000 volts (230 kV) – Transmission voltage forlong distance, bulk energy transmission.– Transportation = interstate highway• 345,000 volts (345 kV) – Transmission voltage forlong distance, bulk energy transmission.– This is the highest voltage Idaho Power presently uses.– Transportation = I-84 freeway through Boise• 500,000 volts (500 kV) – Transmission voltage forefficient long distance bulk energy transmission.– Transportation = Freeway through a major city34WREP Jan 07.ppt

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Hydroelectric Generation• A hydroelectric plant converts falling water intoelectrical energy. The falling water is used to turn agenerator that then makes electricity.36WREP Jan 07.ppt

Coal-Fired Generation• A coal-fired power plant uses the energy released fromburning coal to make steam that is then used to turn anelectrical generator, thus producing electricity.• Two primary types of coal-fired power plants– Pulverized coal• Crushes the coal and burns it in a boiler to make steam.– Coal gasification• Converts the coal energy into a gas that can be burned in acombustion turbine (to be described in following slides).37WREP Jan 07.ppt

Natural Gas/Steam Generation• A natural gas/steam power plant uses the energy releasedfrom burning natural gas to make steam that is then usedto turn an electrical generator, thus producing electricity.Very similar to a coal-fired power plant.38WREP Jan 07.ppt

Simple Cycle Combustion Turbine• A simple cycle combustion turbine (SCCT) power plantis similar technology to a jet engine used on an airliner(Bennett Mountain).– On an airliner, the turbine engine is used to create thrust topush the airliner through the sky.– For electrical generation, that thrust is instead fed into anotherturbine that turns an electrical generator to produce electricity.39WREP Jan 07.ppt

Combined Cycle Combustion Turbine• A combined cycle combustion turbine (CCCT) powerplant takes the excess heat from a simple cyclecombustion turbine power plant and uses it to createsteam that then turns another electrical generator.– This type of power plant can be very efficient.40WREP Jan 07.ppt

Wind Turbine Generation• A wind turbine uses the energy of wind blowing acrossits blades to turn a generator, thus producing electricity.41WREP Jan 07.ppt

Geothermal Generation• A geothermal generator uses hot water from the earth tomake steam to turn a generator, thus producingelectricity.• Three basic types of geothermal generating plants– Direct Steam – Steam directly out of the ground turns aturbine.– Flash Steam – geothermal resource produces hot water that isfed to a tank where it flashes to steam to turn a turbine.– Binary Cycle – Uses a secondary fluid to turn the turbine.Usually lower temperature geothermal resource.42WREP Jan 07.ppt

Fuel Cells• In its purest form, a fuel cell combines hydrogen withoxygen to produce electricity and pure water…with noemissions.• First conceived in 1839, fuel cells are silent electronfactories with no moving parts and no combustion.• Keep in mind that the electrical current that runs ourlights is nothing but a stream of electrons pushing acharge down a wire.43WREP Jan 07.ppt

Fuel Cell SystemsHydrogenOxygene eē-e--e -Separator Plate(-) H+ (+)ProtonExchangeMembranee - e - e -Separator PlateAir &Water44WREP Jan 07.ppt

Fuel Cell Systems45FuelSourceEmissions:CO 2 , COMethanol, Propane,Natural GasFuelProcessorH 2Hot WaterHeatingFuel CellStackPure WaterElectricalDevicesInverterDCWREP Jan 07.ppt

Biomass• Power made from forest and crop waste and fromanimal waste• Forest industry is already a fairly big producer ofpower in Idaho• Dairy and feed lot operators interested in anaerobicdigesters– Prevents much waste from entering aquifers and rivers• Interest in ethanol production from crops46WREP Jan 07.ppt

Biomass Generation• Anaerobic Digestion (AD) from dairy and feed lots– The most common feeds for AD is dairy cow waste.– Idaho has around 300,000 dairy cows.– An average size dairy cow can produce nearly 120 lbs ofmanure each day.47WREP Jan 07.ppt

Biomass Generation• It is estimated that .212 kW of electricity (on average)can be produced from the manure of a single cow.• Other byproducts– Compost material that is nearly free of coliform bacteria andodor that can be readily used as livestock bedding.– Relatively odor free liquid fertilizer.48WREP Jan 07.ppt

Solar Power• As its name implies, solar power uses the energy of thesun to produce electricity.• Two basic types– Photovoltaic• Converts solar energy directly into electricity.– Solar-thermal• Uses the sun’s energy to heat water that is turned to steamto turn a turbine.49WREP Jan 07.ppt

Idaho PowerHeadquarters 18 kWPhotovoltaic Array50WREP Jan 07.ppt

Demand Side Management• We are going to deal with DSM a great deal during alater meeting.• A special case of DSM is Demand Response (DR)• DR decreases the load only during peak hours.51WREP Jan 07.ppt

Demand Response is a ThirdLeg to Energy SupplyEnergy SupplyTransmissionDemandResponseGeneration52WREP Jan 07.ppt

Idaho Power SystemOverview

North American ElectricReliability Corporation (NERC)WECC54WREP Jan 07.ppt

British ColumbiaWashingtonAlbertaMontanaWestern ElectricityCoordinatingCouncilOregonIdahoWyomingCaliforniaNevadaUtahColoradoArizonaNew MexicoMexico55WREP Jan 07.ppt

BPA, Avista& PacifiCorpIdaho PowerSystemBoardmanSnake RiverHydro FacilitiesPacifiCorp andNorthwesternJim BridgerPacifiCorp56ValmySierra PacificPacifiCorpWREP Jan 07.ppt

Generation Resources in Idaho• There are about 3,200 MW of generation within the stateof Idaho. This includes about 1,500 MW owned byIdaho Power.– The remainder of Idaho Power’s generation is located inOregon, Nevada and Wyoming.• Idaho Power’s total generating capacity is about 3,300MW.– Idaho Power cannot use its hydro resources to their maximumcapacity at the same time.• Reservoir levels• Regulated water flow restrictions• Idaho is a net importer of energy57WREP Jan 07.ppt

Integrated Resource Plan• Every 2 years Idaho Power is required to file an IntegratedResource Plan (IRP) with the IPUC and OPUC.• Describes Idaho Power’s plans for resources to supply itsgrowing load.– Projects load and resources out 20 years.– Generation, transmission, demand side.– Idaho Power must ensure that resources are cost-effective, lowrisk, and meet the increasing electrical energy demands of itscustomers.– IRP is created using a collaborative process with customer andadvocacy groups.58WREP Jan 07.ppt

2006 Integrated Resource Plan• In next twenty years, the IRP calls for:– 187 MW Demand Side Management (peak)– 250 MW Wind– 150 MW Geothermal– 150 MW Combined Heat & Power– 250 MW Coal– 250 MW Integrated Gasification Combined Cycle (coal)– 250 MW INL Nuclear (2023)– 285 MW Transmission (to bring in outside energy)59WREP Jan 07.ppt

Wood River Valley Power Supply• The Wood River Valley is served entirely viatransmission• The nearest Idaho Power generators are on the SnakeRiver near Twin Falls.– 12.5 MW Shoshone Falls– 54.3 MW Twin Falls– 80 MW Bliss– 59 MW Milner– 70 MW Lower Salmon– 39 MW Upper Salmon60WREP Jan 07.ppt

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Base-Load vs Peaking Generation• Idaho Power’s average energy needs are supplied bybase-load generation and imports from out of state.– Typically• Hydro• Coal-Fired• Wind– Long start-up times– Lower operating cost– Long run times63WREP Jan 07.ppt

Base vs Peaking Generation• Often times, base generation is inadequate to supplyIdaho Power’s load. During these periods we usepeaking generation.– Quick start• Combustion Turbine• Hydro– Peaking generation can also be used in emergency situationswhen other generation is out of commission.• Bennett Mountain• Danskin64WREP Jan 07.ppt

100%90%System Load Duration80%70%% of Peak60%50%40%Peaker6530%20%10%0%Base-load0 Hours in Year8760WREP Jan 07.ppt

Idaho Power Hydro Plants• American Falls-112 MW• Bliss-80 MW• Brownlee-728 MW• Cascade-14 MW• Clear Lake-2.4 MW• Hells Canyon-450 MW• Lower Malad-15MW• Upper Malad-9MW• Milner-59MW• Oxbow-220 MW• Shoshone Falls-12.5 MW• Lower Salmon-70 MW• Upper Salmon-39 MW• CJ Strike-89 MW• Swan Falls-25.5 MW• Thousand Springs-8 MW• Twin Falls-54 MW66WREP Jan 07.ppt

Idaho Power Thermal Plants• Boardman (Coal) – 55 MW• Jim Bridger (Coal) – 707 MW• Valmy (Coal) – 261 MW• Danskin (Natural Gas) – 90 MW• Bennett Mountain (Natural Gas) – 160 MW• Salmon (Diesel) – 5.5 MW67WREP Jan 07.ppt

Customer Owned Generation• Approximately 120 MW available during the summerfrom customer owned generation.– Forest Waste– Canal based hydro projects– Co-generation from food processors– Wind• Non-hydro customer owned generation is available yeararound.68WREP Jan 07.ppt

Market Purchases• Idaho Power purchases power from the market toaugment its own generation.• In middle of summer, cost is high.– Highest in late afternoon when Idaho Power’s peak hits.• Sometimes, must purchase power from the southeast(Utah, Arizona, New Mexico)– This power can be quite expensive.• In 2005, Idaho Power purchased 22% of its energy onthe market. 2006 figures aren’t available yet but shouldbe a bit lower because of better water supply.69WREP Jan 07.ppt

Demand Response Programs• AC Cool Credit– Cycles customer air conditioners on and off in 15- to20-minute intervals over a 2- to 4-hour period.– Commanded via pager signal– Began installing in 2005. Ultimate goal of 40,000customers on program.• Installation due to be finished in 2008 or 2009.– This will give us up to 70 MW of demand response.– Customers get $7 per month during the summer forparticipating.70WREP Jan 07.ppt

Demand Response Programs• Irrigation Peak Clipping– Turns off irrigation pumps at the same time of day, once perweek.– Program spread over many irrigators so we get response 5 daysa week.– Pumps off for 2 hours, from 4 to 6 p.m.– Irrigators are rewarded with a reduced demand charge.– Idaho Power gets about 40 MW of demand response.71WREP Jan 07.ppt

Final Questions / Next Steps• Advisory Committee mtg #2– Rates and Regulatory–DSM– Transmission/Distribution– Substations• Advisory Committee Meeting #3– Existing Wood River Electrical System– Future Supply Options72WREP Jan 07.ppt

Thanks for your time andparticipation!73WREP Jan 07.ppt

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