Deployments with UK DNOs and others
UKUKPN – currently rolling out BaU to
Norwich area
SSEPD – new deployment for Isle of
Wight
WPD – further rollout at Bridgewater
NPG – planned for Driffield
NIE – ANM trial for small-scale wind
North America
NREL, Colorado – full-scale test
deployment of ANM
Iberdrola USA – flexible
interconnections for REV
Orkney
Challenge
SSEPD seeking cost effective alternative to grid upgrades to
provide connections for renewable generators: network already at
‘full capacity’. Technical challenge is multiple thermal overloads
on various overhead and subsea cables.
Solution
Non-firm actively managed grid connections for distributed
generation using ANM 100 with an energy storage control
module.
Delivered Benefits
Operational since November 2009
Connected 24 MW of new renewable generation capacity to
33 kV grid previously considered to be full
103% of electricity demand met by renewables in 2013
Estimated saving of at least £30million
The Orkney Isles are located off the
north cost of Scotland and
interconnected to the main UK
transmission system.
Orkney Isles Background Information
• 70 islands with 20 inhabited
• ~1000 sq km and 21,000 inhabitants
• Winter peak demand of 31 MW
• Summer peak demand of 6 MW
• Installed background generation of 46 MW
• Annual average temperature 80C
• Industry mainly agricultural, fishing and tourism
Cambridgeshire
Challenge
Increase grid capacity, reduce time to connect and cost
of connection for distributed generation in
Cambridgeshire. Technical challenges include thermal
overloads and localised voltage rise constraints.
Solution
Non-firm actively managed grid connections for distributed generation using ANM 100.
Integration with Dynamic Line Rating relays and Quad Booster Control System.
Delivered Benefits
• 9 generators (39 MW) accepted ANM connection offers out of the 24 connection offers made
• Reduction of CAPEX in connection offers of 75-95% to individual generators
• Aggregate saving of £23.9m.EPN licence area heat map for DG
connections
Cambridgeshire ANM area Norwich ANM
area launched
Dec 2014
following
success of
Cambridgeshire
Cambridgeshire
High level schematic of Cambridgeshire solutionConnection costs and estimated curtailment levels for
normal connection versus ANM connection
Skegness and Corby
Challenge
Roll-out ANM connections for DG customers within 6 months.
Technical challenges include thermal and voltage constraints
for wind and PV developments.
Solution
• Non-firm actively managed grid connections for distributed
generation using ANM 100.
• ANM 100 delivered and operational within 3 months.
• Consultancy services, capacity analysis and training to
build internal knowledge and capability.
Delivered Benefits
• Skegness: 5 offers accepted totalling 49 MW, further 14
offers issued totalling 45.5 MW.
• Corby: 2 offers accepted totalling 58 MW, further 7 offers
issued totalling 80 MW.
SGS and WPD engineers commissioning the
Skegness ANM system
London
ChallengeDemonstrate how ANM can be used to increase visibility of
distributed generation, improve security of supply, manage
different Distributed Energy Resources and avoid demand
driven reinforcement.
Solution
• ANM 100 configured to second by second manage
export and import of distributed generation (20+ MWs
from CHP), demand aggregators (3 aggregators) and EV
charging (50 charge points totaling 600 kW).
Delivered Benefits
• A third more distributed energy plants to export power to
urban networks
• £43m of savings identified through the visibility and
contribution of Distributed Generation to security of
supply. Example trace of ANM delivering autonomous demand response
Shetland Isles
Challenge
Develop and manage the non-interconnected island grid
more efficiently and increase role of renewable energy in
meeting future energy needs.
Technical challenge includes stability, primary reserve,
network operation and thermal overload constraints.
Solution
• Actively manage new generator output against dynamic
stability constraints and schedule new controllable
demand to reduce renewables curtailment and enhance
system operation
• Distributed Energy Resources integrated include domestic
demand (including 2 MW of electrical demand and 16
MWh of energy storage); several MW of new renewable
generation and battery energy storage.
Delivered Benefits
• 5 generators accepted ANM connections (8.5MW)
Population ~23,000
Demand 11 – 47 MW
Diesel generation at Lerwick Power Station (50+
MW)
• BUT reaching end of life and requires
replacing
Back-up and frequency response from Sullom
Voe Oil Terminal
• BUT mainly there to serve local load and
cannot be guaranteed for the long term
Platform and
application
components used
to deliver the
Shetland ANM
system
South East of Scotland
Challenge
To increase the speed and cost of connection for DG projects
(e.g. PV, wind and thermal) in the South East of Scotland.
Reduce wasted engineering effort in connection quotations
which are not accepted (currently >90%)
Technical challenges include thermal overloads and voltage.
Solution
ANM-enable grid supply points with ANM 100 to manage
distribution and transmission constraints
Deliver an online capacity analysis tool for distributed
generation customers to screen connections before applying
Status
Customer portal in trial and being rolled out across the area
by April 2015
3 grid supply points ANM-enabled and integrated to existing
communications and SCADA ready for distributed generator
connections
Available Capacity
Limited capacity
No capacity
ANM enabled area
Project area and constrained circuits for distributed generation
connections
Max Gen 156MW
Min Demand 11MW 132/33kV
60MVA
132/33kV
60MVA
Sync
Crystal Rig
Wind Farm
62.5 MW
33/11kV
7.5MVA
33/11kV
7.5MVA
5 MW 31 MW
Aikengall
Wind Farm
48 MW33/11kV33/11kV
(open 11kV switchboard)
Inter-trip at 90% GSP
transformer rating
c
9 MW
Wind Farm
Torness Primary
Dunbar GSP
33/11kV
7.5MVA
Spott Rd Primary
East Linton/North Berwick Belhaven Forth/North
Berwick
Constraint 1
Constraint 257.97MVA
Traditional Solution
• Two Additional 90MVA
Transformers
• Time to Build - 7 years
• Cost - £20M
Smart Solution
• Installation of Active Network
Management
• Time to Build – 6 month
• Cost - £0.5M
• Constrained 3-5% of time
3 New Generators - 51MW
Facilitation of 50MW At Dunbar GSP
13
~1.3km
Traditional Solution
• 1.3km of new wood pole
overhead line
• Cost - £160k
Smart Solution
• Installation of Active
Network Management
• Cost - £12kVoltage limitationMaximum export 12kVA
SMA Cluster Controller
i5MT Transducer ANM Controller
11kV Circuit
PV (0-80kW)
Secondary
Transformer
Grain Store
Demand (0 -250kW)
Metering Point
G59 Relay
MODBUS
Hardwired Digital I/O
Developers Scope
New Connection – 80kW PV Ruchlaw