Wong Entergy Storage Application Storage... · Application March 29, 2018 i‐PCGRID ... and coal‐fired power plants Sells electricity to wholesale customers Source: SNL. Click

Entergy Storage Application

March 29, 2018i‐PCGRID

S. Cat Wong, Ph.D., P.E., P.M.P.Commercial Development & InnovationEntergy Corporation

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AgendaAgenda

Entergy Overview Paterson Solar + Storage Project Retail‐Scale Energy Storage Projects Utility‐Scale Energy Storage Projects Summary

Source: SNL

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Overview of Entergy CorporationOverview of Entergy Corporation 30,000 MW electric generating capacity 2.9 million utility customers More than $10 billion annual revenues 13,000+ employees

Regulated Utilities 5 public utilities 4 contiguous states – AR, LA, MS, and TX 15,700 miles of high‐voltage transmission 100,000+ miles of distribution ~200,000 natural gas customers in LA

Entergy Wholesale Commodities Owns 4 nuclear units located in the northern U.S.

(currently shutting down and/or selling our merchant nuclear units)

Owns all or partial interest in several natural gas and coal‐fired power plants

Sells electricity to wholesale customers

Source: SNL

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What DERs Does Entergy Has Today and Where Are They?


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Existing Projects and Pilots

• Entergy Arkansas– Stuttgart : 20‐year PPA with NextEra

Energy for new 81 MWAC solar farm approved in 2015

– Chicot : 20‐year PPA with NextEra Energy for new 100 MW farm, pending regulatory approval and expected online mid‐2020

• Entergy Louisiana– 2010 renewable pilot yielded 5 PPAs

(~60 MW) with biomass (rice hulls, sugarcane bagasse), landfill gas, and waste heat recovery resources

– 2016 Renewable RFP yielded two resources that were selected with negotiations underway on PPAs Stuttgart Solar Energy Center


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Existing Projects and Pilots

• Entergy New Orleans– Paterson Solar + Storage Pilot:

– 1.08 MWAC ground‐mounted with single‐axis tracking (June 2016)

– 500 kWh 1‐hour Li‐ion battery – Three solar projects totaling 45 MW

from 2016 Renewable RFP– 5 MW rooftop solar project filed at the

City Council on Oct 6, 2017

• Entergy Mississippi– Three 500 kWDC solar pilot projects– Evaluating community solar

• Entergy Texas– Purchases wind Renewable Energy

Credits (RECs) to comply with RPS DeSoto County, Mississippi

Paterson Solar+Battery, New Orleans, LA


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Paterson Solar + Storage Pilot

• Built on Entergy owned property (~15 acres)

• Interconnects at 13.2kV• 1.08 MWAC ground‐mounted with single‐

axis tracking (June 2016)• 500 kWh 1‐hour Li‐ion battery


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PI View


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Control Functionality and DOC view

GENERAL MANAGEMENT

ACTIVE POWER BASED

REACTIVE POWER BASED


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Outputs from Paterson Solar + Storage Site

Energy Time Shift

Ramp Rate Control –“Solar

Smoothing”


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• Constraints at existing Paterson Solar + Storage site – Logic engine and dispatch is unique to Paterson– Dispatch is not dynamic based on changing real‐world priorities– Dispatch solution is not scalable

• Opportunity for Enhancement – Expand Paterson into a resilient, robust, interoperable, functional,

and more cyber secure facility– Develop a common backplane for managing, operating, and

optimizing DER’s • manage other customer or utility‐owned assets at scale

Enhancement to Paterson Solar + Storage Site


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• Develop a customizable, standards‐based, optimization and dispatch solution – Commercially viable– Focused on scalability and interoperability– Ability to scale across other DER types– Ready for future integration via OpenFMB and support for IEC61850

and other strategic protocols and interfaces– Dynamic dispatch with the DOC able to take manual control – Enhanced monitoring and distributed control– Remote, automatic and dynamic optimization enabled through

control layer, not DOC– Can enable future battery storage projects

Enhancement to Paterson Solar + Storage Site


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What About at The Customers Level?


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What is the Trend and What is Entergy’s Strategy?

Entergy will provide energy-related Products and Services through a sustainable business model.

When is the tipping point?When will you have these at your home?


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• Customer Insights and Solutions plans to offer different Products and Services Programs

• Some Products and Services Programs have significant impact– load shapes, hosting capacity, reliability, power quality, protection scheme, etc.

• Perform engineering studies to determine – The ability of the existing distribution system to support the propose adoption

rates,

– The impact the distribution feeders performance and potential mitigation measures,

– The cost / benefit of Products and Services Programs deployment

– Interconnection requirements and design requirements

Customer Insights and Solutions


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Planning Stage – Overall Process

Develop DERs Planning Study

Process

Define Planning Studies

Methodology

Model Distribution System

Simulations, Results, and Feedback

• Define Studies to be performed

• Identify programs to be evaluated

• Study representative feeders

• Study all of the feeders

• Define Studies process work flow

• Identify Tools to be used (in house tools, existing license, new license)

• Develop scenarios and metrics

• Model distribution network

• Model equipment

• Model Load• Model existing

DER and P&S program

• Scenarios • Metrics• Results• Feedback to

CI&S and D planning


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RFI for Battery Energy Storage System

• Commercial Development & Innovation led the RFI development along with Transmission, Distribution, SPO, Resources Planning, etc.

• RFI included, but are not limited to following– Characteristics, Pricing, Performance metrics, Operating platforms,

Classification of use‐cases

• Issued RFI on Oct 3rd, 2017• Received responses on Oct 30th,2017• Developed ranking metrics and criteria to evaluate vendor

responses

confidential information


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Use Cases in RFI

Use Case Description

#1 GRID‐CONNECTED ESS (ONLY)

Peak shaving or Transmission / distribution deferralEnergy arbitrage

Frequency regulation

#2 GRID‐CONNECTED ESS (ONLY) – LONG DISCHARGE (> 8 hrs)Peak shaving or Transmission / distribution deferralEnergy arbitrage

Frequency regulation

#3 GRID‐CONNECTED ESS (ONLY)

Transmission congestion relief

Voltage support

VAR support

Use Case Description

#4 GRID‐CONNECTED ESS (NORMAL CONDITION) , AS WELL AS GRID FORMING ESS (OUTAGE CONDITION)

Backup power (outage condition)Voltage and frequency control (outage condition)Black start capability (outage condition)Energy arbitrage (normal condition) Frequency regulation (normal condition)

#5 WHOLESALE MARKETArbitrage Frequency regulation Spinning/non‐spinning reserves

#6 RENEWABLE ENERGY SUPPORTResource adequacy (firm capacity)Generation shifting (reverse power flow management) Ramp rate control and smoothing Flicker management and voltage control


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Identify Potential Sites for BESS

• Use cases / Locations• Preliminary Storage Sizing• Cost Estimates• Scoring Matrix

Screening Study

• Detailed Storage Sizing• System Simulations (N‐x)• Updated Battery Cost Roadmap• Performance Evaluations (full & partial)• Alternative Solutions (e.g., solar plus storage)

Detailed Siting & Sizing Design

• Lifetime cost modeling• Regulated asset financial analysis• Storage Technology Selection• Investment Metrics (storage vs conventional T&D solutions)

Techno‐Economic Evaluations


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• Entergy view the integrated energy network of the future– As a dynamic, interactive power delivery system that includes centralized

generation and distributed energy resources such as solar, battery storage and electric vehicles

• Entergy is looking to transform:– How we engage with customers via Customer Insights and Solutions and a

sustainable business model– How we operate and optimize our transmission and distribution grid

through DER, AMI and Grid Modernization– How we enable our employees and understand the future through

analytics, training, and change management

Summary


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Thank You for Your Time!

Questions?

S. Cat Wong ‐ [email protected]

Documents

Wong Entergy Storage Application Storage... · Application March 29, 2018 i‐PCGRID ... and coal‐fired power plants Sells electricity to wholesale customers Source: SNL. Click