Demand Response. Delivered. · 2019. 5. 31. · 0131 221 8100 © Copyright Flexitricity Ltd. 2015. All rights reserved. Aunt Sally’s Island = 1500MW load 500MW 100% 500MW 100% .

www.flexitricity.com 0131 221 8100 © Copyright Flexitricity Ltd. 2015. All rights reserved.

DemandResponse.Delivered.

HEADING HERE

ElectricitystorageEarningfromflexibility


Flexitricityinanutshell

•  LeaderinI&Cdemandresponse

•  >7,800demandresponseevents

•  Industrial,commercial,publicsector

•  CHP,load,diesel,hydro,UPS,storage

•  24-houroperaNons•  Fullyautomated•  1sto30minuteresponse

•  PosiNveandnegaNvereserve

•  InnovaNve


Electricitybalancing


Timescalesofflexibility

Sustain time

Days

Hours

Minutes

Seconds

Response time

Market trading

Sub-second Seconds Minutes Hours Days

Operating reserve (margin)

Peak charges

Grid trading

Spinning metal Steam

Pumped storage


Flexibleandinflexible


Nuclearfailure,January2009

0

10,000

20,000

30,000

40,000

50,000

60,000Transm

ission

system

dem

and(M

W)

Saturday3rdJanuary2009

France

OCGT(gasoil)

PumpedStorage

Wind

Hydro

Oil

CCGT(gas)

Coal

Nuclear

Nuclearpowerstationfailedat 16:34;632MWgeneration lost

STORcallreceivedat16:38Flexitricity startedgenerationinsameminute;fullpowerby16:43

Daypeak17:15 - 17:20

STORceasereceivedat17:46


Tilbury,February2012

Source: Daily Mirror


InterconnexionFrance-Angleterre

IFA single bipole failure at 14:03:19

National mains frequency falls

rapidly to 49.6Hz

Frequency fall detected – site responded in one second

Site reconnected after 30 minutes


Longannet/SizewellB,May2008


Wind/PV,September2016

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

1 2 3 4 5 6 7 8 9101112131415161718192021222324252627282930313233343536373839404142434445464748

MW

Se1lementPeriod

DutchIC

FrenchIC

Other

Hydro(non-ps)

PS

Wind

Nuclear

Coal

CCGT

Coal coming on for peak

800 MW wind curtailed

DTU Call


Constrainednetworks,flexiblecustomers?

What if a feeder fails? Firm capacity (N+1 security)

Heat wave


Thevaluestack


Valuesourcesforflexibleresources

Capacity Market

Frequency and inertia response

Short term operating reserve Day-ahead trading

Balancing mechanism

Local network peaks

Behind-the-meter

Trans-European Replacement

Reserves Exchange Voltage management

Tria

ds


Whybaeeriesaredifferent

Strengths•  Veryfast•  Two-sidedcapability•  Powerelectronics•  “Contained”projects•  Nolocalemissions

Weaknesses•  LimitedrunNme•  Can’tspendlongdischarged•  SoCmanagement•  Needlong-termrevenues•  Regulators,governments

don’treallyunderstandbaeeries


Servicedetails


Direct•  Extremelycomplex•  Respectdeadlines•  ManageSPDs•  ManageALFCO•  Tenderseparatelyforother

valuestreams•  MulNpledirectcontracts•  100%ofsub-opNmalvalue

Aggregator•  Dealswithcomplexity•  Dealswithdeadlines•  DealswithSPDs•  Porlolioeffect•  IdenNfiesandpursuesother

valuestreams•  Onecontractwithaggregator•  %shareofopNmalvalue

Capacity Market


Ques<onstoask•  WhereshouldIputit?•  Pre-orpost-fault?•  Whatelseisthere?•  Summerorwinter?•  DNO/TSOinteracNon?

Whythesema1er•  LocaNon,locaNonlocaNon•  DuraNon,speed,reliability•  Workwithotherresources?•  Whattodoforrestofyear?•  Avoidconflicts

Local network peaks


Frequencyresponse•  EFR,FFR,FCDM•  Respondtofrequency•  Manyflavours

–  Dynamic/staNc–  Low/high–  Enhanced/primary/secondary

•  LocaNondoesn’tmaeer•  Limitedrequirement

–  OnlyNaNonalGrid–  Lessatpeak,moreatnight–  Circa1.8GW

Iner<aresponse•  Pre-commercial•  Respondtodf/dt(RoCoF)•  Manyflavours

–  Dynamic/staNc–  Low/high–  Willalwaysbefast

•  LocaNonmaeers•  Limitedrequirements

–  OnlyNaNonalGrid–  Lessatpeak,moreatnight

Frequency and inertia response


Flows


Valueflow

Flexible resource

Electricity supplier

Energy markets

MWh and energy payments

Aggregator

National Grid

Service payments (MW, MWh, MWs…)

DNO


InformaNonflow

Flexible resource

Electricity supplier

Energy markets

Aggregator

National Grid DNO

Predictions Positions Profiles

Prices Measurements Capability Schedules

Despatch


Conclusions


Conclusions•  It’scomplicated

–  ManyopportuniNes–  Valuemovesaround–  Compliancenotstraighlorward

•  Youcanstackvalue–  Allowed:CM+energy+oneserviceataNme–  Notallowed:frequencyresponse+STOR+triads+++

•  Thefuture’sinteres<ng–  InerNaservices–  BalancingmarketandTERRE


Extraslides


AuntSally’sIsland

= 1500MW load

500MW 100%

500MW 100%

500MW 100%

0MW 0%

Four 500MW power stations supply a 1500MW load

CO2 emissions 540 tonnes/hour

System status NOT secure

Margin None. System fails.

Cost of margin (hour) 0 tonnes/MW/hour

Cost of margin (annual) 0tonnesCO2/MW

375MW 75%

375MW 75%

375MW 75%

375MW 75%

CO2 emissions 595 tonnes/hour

System status SECURE

Margin 500MW

Cost of margin (hour) 0.11 tonnes/MW/hour

Cost of margin (annual) 965tonnesCO2/MW

Demand Response. Delivered. · 2019. 5. 31. · 0131 221 8100 © Copyright Flexitricity Ltd. 2015. All rights reserved. Aunt Sally’s Island = 1500MW load 500MW 100% 500MW 100% .

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