unlocking capacity in the south east of england regional ... · bsp bulk supply point chp combined...

2016. UK Power Networks. All rights reserved 1

Unlocking Capacity in the South East of

England

Regional Development Programme

2016. UK Power Networks. All rights reserved

Connecting You to the South East Network

Regional

Development

Programme

Power

Potential

Flexible

Connections

Kent Active

System

Management


A New Approach, with benefits to customers

3

Our new approach provide tools that remove constraints to DER connections on the South East Coast in the short- to medium-term

Continued access to network capacity in the South East at lowest overall cost

Single stage connections process – no undue delays in application or connection

Investable proposition – no current financial exposure to transmission constraints.

Opportunity for additional revenues – participation in new markets

3

2016. UK Power Networks. All rights reserved4

Bolney GSP

Ninfield GSP

Sellindge GSP

Canterbury GSP

South East Coast Network

4


• The South East Coast system is one of the most complex areas of

network in Europe, with several interconnections to continental

Europe, a nuclear power station and a significant volume of

renewable energy resources.

CANTERBURY NORTH

SELLINDGE

RICHBOROUGH

CLEVE HILL

DUNGENESSNINFIELDBOLNEY

KEMSLEY

TO LOVEDEAN

TO ROWDOWN

TO GRAIN

1.1GW

IFA (existing)2GW

NEW ELECLINK1GW

NEMO (new)1GW

INTERCONNECTOR

GENERATOR

NEW GSP AND INTERCONNECTOR

London Array0.63GW

0

400

800

1200

1600

1992 1997 1999 2002 2005 2007 2009 2011 2013 2015

MW

Distributed Generation South East

CumulativeMW

Background


BETTESHANGER

CANTERBURY SOUTH

HERNE BAY

RICHBOROUGHTHANET

FOLKESTONE

SELLINDGE

CANTERBURY NORTH

NATIONAL GRID GSP

NATIONAL GRID GSP

RUCKINGE

ASHFORD

HASTINGS

RYE

TO NINFIELD & BOLNEY

LITTLE CHEYNE

THANET OFFSHORE WINDFARM

6

• 132kV constraints in East Kent

network

• Constraints on existing DG during

outage season

• Circa 1.5GW DERs across 4x GSPs

• Summer minimum demand 1.1GW

• Localised network constraints

• Mix of new applications (storage,

CHP, etc.)

Distribution Challenge


Overload Voltage Collapse

Secured event e.g.

Fault on overhead line

• Restrictions

• Thermal

• Voltage Stability

• Asset based solution circa £1bn

10yrs lead time

EleclinkNEMO

Rampion

London Array

Shoreham

Dungeness Thanet

Transmission challenge

77


Developing a whole-system framework

8

A collaborative effort

Improve Customer

Experience

Accelerate DER

connections

Deliver at lowest

system cost

Technical Development

A regional active network

management capability

Managing loss of mains potential

issues

Data exchange and modelling

Market Development

Application of deep connect

and manage

DER curtailment services for

transmission constraints

Conflicts of service

framework

Whole System

Planning

Storage Integration

Industry Engagement

(ENA TSO – DSO project)

Regional Planning

Innovation

New Cross industry

processes

8

Phase 2, July 2017 – Dec 2018

Phase 1,

Aug’16 – Jun’17


Data exchange and modelling

Week 24 Data

GSP Demand Data (MW and MVAr) for:· GB max· GB min· GSP peak (BSP & GSP)

· Access Period peak

Small Embedded Power Station data > 1MW per GSP:· Registered capacity· Type of generation· Control mode· Loss of mains

protection

Statement of Works Data

BSP Net Demand Data (MW and MVAr) for:· GSP min

Small Embedded Power Station data >1Mw per BSP:· Registered capacity· Voltage· Type of generation· Control mode· Fault Infeed

IN DNO

Data for Medium Power Stations and 132kV generation connections

Small capacity allocation based on most onerous network condition

Enhanced Data

BSP Gross Demand* Data (MW and MVAr):· Using GSP mins

across 4x timestampsSeparated by:· Directly connected at

33kV· Aggregated at 11kV

and below

Small Embedded Power Station data per BSP:· Aggregated by

technology type· Inc. loss of mains infoSeparated by:· Directly connected at

33kV· Aggregated at 11kV

and below

Additional capacity release across a number of scenarios. More certainty in evaluating operational solutions

+

Network Models as per Week 24 submission

*All generation down to LV

separated from demand using

derived profiles

Improved DNO model and dynamic models for transmission system

NGET Network Model

NGET Network Model

OUTNGET

Old World

New World

9


Old World

New World

Revised connections process

Acceptance & Payment (inc. Statement of Works fee)

Connection Offer – subject to Statement of Works

Connection Application

Statement of Works Process

Progress to Delivery

Can

t ak e

upt o

12m

ont h

s

Decision Making Process

Withdraw Acceptance

Offer Includes:· DN costs· DN site specific reqs

Connection Offer

Connection Application

Progress to Delivery

Decision Making Process

Offer Includes:· DN costs· Securities· DN site specific reqs· TN site specific reqs

3m

ont h

s

Acceptance & Payment (inc. securities)


• Scope of the distribution works

• Cost breakdown (Contestable/Non-contestable)

• Project milestones

• Special Conditions

• Control & Visibility

• Loss of Mains Protection

• Abnormal Network Conditions (N-3, etc.)

• Commitment to deliver commercial framework

for transmission curtailment

• Securities & Liabilities (NGET works)

• Distribution curtailment assessment (where

applicable)

What to expect in the connection offer


Technical Development

12

Active Network Management

• Developing a regional capability to provide control and visibility at EHV / HV

• Customers will be responsible for sole use assets (substation controller and

telecommunications) as per existing standard arrangements

• UK Power Networks is assessing the option of developing and funding centrally ANM

software development & enabling infrastructure as a low cost alternative to creating

capacity.

Loss of mains protection

• UK Power Networks is putting a moratorium to further use of vector shift in the South

East Coast region pending national resolution of this issue to mitigate risks

around the secure operation of the system.

12


Alignment with Wider Industry Initiatives

13

• ENA’s Open Networks Project:

• Improved data exchange and T-D Capacity management is being

incorporated in the revised Statement of Works process

• ANM development is using the processes defined by the ENA Project’s work

to co-ordinate T and D constraints

• National Grid’s FRSO Programme:

• Market development is feeding into National Grids ancillary service

simplification work; itself feeding ‘DER Commercial Principles’ work into the

ENA’s Open Networks Project

• Loss of mains approach is consistent with approach adopted by WPD, as well

as wider Grid Code/Distribution Code work

13


14

Programme kick-

off meeting

Begin scoping

initiatives

Scope and

plan agreed

Models and

data

exchanged

Stakeholder

engagement

event

External engagement – UK Power Networks DER customer workshops,

Power Responsive and Power Potential stakeholder fora, ENA Open

Networks project

Aug’16 Dec’16 June’17 Phase 2 - > July’17 - July’18 Q3’18 – Q1’19

ENGAGEMENT

Phase 1

completed

Customer Event

Capacity Release

Go Live (26/06)

Work plan

developed

Programme timeline

Develop

operational /

market

framework for

DER services for

transmission

constraints

Power

Potential

market

framework

& technical

solution

RDP other

initiatives

Phase 2

Go Live

Weekly teleconferences / monthly workshops / technical & commercial

Monthly Executive steering groupGOVERNANCE

14


• Go Live – Monday 26th June 2017

• Applications for the South Eastern zone are open

• DER factsheet issued via the mailing list and the website

• Q&A available via DG-Q&[email protected]

• Ongoing engagement to inform commercial and operational framework

Next Steps

mailto:DG-Q%[email protected]?subject=Unlocking%20capacity%20in%20the%20South%20East


Summary

• Significant progress in delivering a T-D framework through collaborative

structured working to:

• Improve the customer experience

• Release DER connection capacity in the SE Coast

• Deliver outcomes at lower overall system cost

• Further work on operational and market models to be carried out in conjunction

with the wider industry


Please send questions to:

DG-Q&[email protected]

mailto:DG-Q%[email protected]?subject=Unlocking%20capacity%20in%20the%20South%20East


Acronyms

18

ANM Active Network Management

BSP Bulk Supply Point

CHP Combined Heat & Power

DER Distributed Energy Resources

DG Distributed Generation

DN Distribution Network

DSO Distribution System Operator

EHV Extra High Voltage

ENA Energy Networks Association

EPN Eastern Power Networks

GSP Grid Supply Point

GW Giga Watt

HV High Voltage

kV Kilo Volt

LPN London Power Networks

MVar Mega Var

MW Mega Watt

NGET National Grid Electricity Transmission

RDP Regional Development Programme

SPN South Eastern Networks

T-D Transmission - Distribution

TN Transmission Network

TSO Transmission System Operator

WPD Western Power Distribution

18

unlocking capacity in the south east of england regional ... · bsp bulk supply point chp combined...

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