Presentation on theme: "NV Energy Energy Imbalance Market (EIM) Presentation to ISAS"— Presentation transcript:
1 NV Energy Energy Imbalance Market (EIM) Presentation to ISAS April 22, 2015Left picture Cresent Dunes Solar – 110 MW owned by Solar Reserve. Concentrated solar power with thermal energy storage (molten salt) located near TonopahCenter picture – LV strip – BellagioRight picture – on line
2 EIM Footprint Existing Market in CAISO PacifiCorp joined in Fall 2014 NV Energy to join in Fall 2015
3 Energy Imbalance Market Update November 2013: Announced plan to join CAISO EIMAugust 2014: Received PUCN ApprovalAmendment to Transmission Tariff to participate in EIMAugust 2014 – January 2015: Stakeholder workshops and tariff commentsFebruary 2015: Finalize tariff revisions and FERC pre-filing meetingsMarch 2015: File tariff revisions with the FERCJuly – September: Stakeholder TrainingBiweekly meetings with PUCN and BCP staff through implementation
4 Energy Imbalance Market Update Con’t. Technical MilestonesSeptember February 2015: Model NV Energy system into the CAISO system model, designate “Participating Resources”, and develop applications and test plansApril - June 2015: Testing, early connectivity, and early market simulationJune – July 2015: Training Sessions – if you or your colleagues wish to receive notices, please send contact information to:September 2015: Parallel non-binding operationOCTOBER 2015: MARKET OPERATION GO-LIVE
5 EIM AdvantagesIncreased Reliability – more tools and modeling to provide operational awareness across a larger (EIM) footprint increasing reliabilityImproved Renewable Integration – Helps integrate renewable resources by capturing the benefits of longitudinal / geographic diversity.Cost Savings – Energy Imbalances served from a much larger pool of least cost resources. Re- dispatched every five minutes.
6 Variable Generation penetration in the West VERs are a growing portion of generation portfoliosIncreasing due to:State renewable requirementsNo fuel costsEnvironmental impactsPublicly acceptedSystem/load geographyRooftop solarTax credits
8 Terminology Market Operator EIM Entity Participating Resource Operates the market model, produces dispatchesEIM EntityBAA that allows EIM to operate in their footprintParticipating ResourceGenerator that bids energy into the marketNon-Participating ResourcesResources within the BA not submitting bidsScheduling CoordinatorInterfaces with Market Operator (EESC and PRSC)DataSchedules and forecastsSystem modelOutagesDispatch instructionsRTM: Real-Time MarketRTD: Real-Time DispatchRTUC (RTPD): Real-Time Pre-Dispatch
10 EIM Process OverviewEIM15-MinuteMarketAwardedSchedule
11 EIM Process Overview EIM 5-Minute Market Economic Bids Updates to Generation ForecastInterchange ForecastLoad ForecastOutagesEconomic BidsState Estimator
12 Operational Overview Expansion of CAISO’s current 5 minute market Security Constrained Economic Dispatch (SCED)Congestion managementNetwork model visibility and increased outage accuracy in CAISO as well as NV Energy systemsIncreased modeling and outage details for modeling purposes lead to increased situational awareness
14 Responsibilities: Other Load Serving Entities (LSEs) – Non-NV Energy Forecast / ResourcesBase SchedulesNote that currently all participating resources are NV Energy units –additional participating units are welcome. If interested please for more information.
15 Base Schedule Background WhatA forward energy scheduleIncludes hourly forecasts of load, generation schedules, and Inter-tie schedulesWhyIt communicates the hourly planned operation for participating resources, non-participating resources, imports, exports, and loadRepresents a financially binding starting point in the real-time marketWhenDay-ahead is prior to 10:00 am ppt the day before the operating hourReal-time - 75 minutes prior to the start of the operating hour
16 Base Schedules Entity must come to the market balanced Base Schedule (G + I = L) (feasibility check)Forecast of GenerationForecast of InterchangeForecast of LoadSubmitted by all customers to EIM EntityData aggregated and validated by NV EnergyEntity (NV Energy) retains all BAA responsibilities
17 Base Schedule DetailsAn EIM base schedule is a forward looking energy schedule. It includes hourly forecasts of load, hourly generation schedules, and hourly inter-tie schedulesBase schedules are used to balance load and generation in our Balancing Authority (BA)Base Schedules are also used as a baseline for settlements
18 Base Schedule Details, Con’t. Day Ahead Market opens 7 days before the Operating DayDay Ahead Market closes at 10:00 pm ppt before the Operating Day, and used as baseline for real-time marketBase schedules must be submitted for both Participating and non-participating resourcesCan be modified by 75 minutes before the operating hour. EIM entity then has 2 opportunities for adjustment.
22 Security Events and Outages Currently made public on OASISUnder EIM, outage forms will be completed in NV Energy’s outage management system in real-timeOutages will be posted on OASIS and communicated to CAISO within 30 minutesOutages will be reflected in market results for congestion, EIM dispatches, and settlements
23 Settlements Overview Three settlement processes with the EIM CAISO to EIM Participating Resource/Participating Intertie SettlementCAISO to EIM Entity (BA) Settlement which includes all load and nonparticipating resources and intertiesBA settling with all entities within their region
24 Settlements & Invoicing Timeline CAISONV Energy – EIM Entity Scheduling CoordinatorDaily Settlement Statement T+3BRecalculation Settlement Statement T+12BRecalculation Settlement Statement T+55BRecalculation Settlement Statement – T+12BRecalculation Settlement Statement T+55BInvoices EESCPayment advices to PRTrading days Monday - Sundayplus recalcsEvery WednesdayInvoice Transmission CustomersOATT Section 7.1 amended to enable billing more frequently than once per month
26 Dispute Timeline Statement Publication Settlement Dispute Deadline DataT+12BT+26BAll but ESQMDT+55BT+77BAllT+9M (T+194B)T+10M (T+216B)Incremental ChangesOnlyNote that Section 7.1 of OATT provides for the flexibility to expedite billing of EIM settlements to better match CAISO’s dispute resolution timeline.
27 QuestionsFor notification of EIM related postings on OASIS, please your contact information to