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Battery & Energy Storage29th November 2017The Slate at University of Warwick
Faithful ChandaInnovation & Low Carbon Networks Engineer
Agenda
Who we are
Context – Network issues
Storage Projects: Industrial & Commercial Project LV Connect & Manage Solar Storage
Conclusion
Battery & Energy Storage
Western Power Distribution
7.8 Million customers over a 55,500 sq kms service area
WPD network consists of 216,000 kms of overhead lines and underground cables, and 184,000 substations
LV to 132kV Network ownership
Network - East Midlands, West Midlands, South Wales, and South West
Industrial & Commercial Storage Project
ContextNetwork Issues
Battery & Energy Storage
Climate change is
happening
Reduction in centralised generation
Constrained and
overloaded grid
Rapidly increasing sale of EVs
EVs are part of electrical
energy systems
Increase in distributed generation
New loads and load
profiles on the grid
A strong future for
distributed storage
Smart systems require control
A typical demand increase in EVs
From the start of data collection (Q2, 2012) the cumulative Electric Vehicle (EV) data shows a sustained and dramatic growth of the EV car and van market
In Q2, 2012, there were 3,000 registered EV’s on the road
By Q2, 2014, this had rose to over 10,000
After this time there was exponential growth
The latest results Q3, 2016, shows 90,000 registered EV’s
Battery & Energy Storage
The future strategy for managing the grid Statement: There is an increase in demand for electric vehicles The grid can do one of three things to cope with this demand:
Option 1: Introduce more capacity to the grid through generation and expand the networks capacity
Option 2: Introduce more flexible generation in order to deal with spikes seen from chargers
Option 3: Introduce local storage to greatly reduce the demand spike by using storage to deal with the ramp up of power
Option 3 is the most cost effective for the network as options 1 & 2 both require the local, and eventually, the national network to be upgraded in order to handle the capacity increase / capacity potential.
Battery & Energy Storage
Our response – WPD Innovation ProjectsDSO Flexibility from Energy Storage
Battery & Energy Storage
Stor
age
Solar StorageFALCON
I&C StorageConnect&Manage
SoLa BRISTOL
Solar Storage Co-location with Solar DG. Testing revenue stacking conflicts and optimisation
FALCON Assessment of DSO owned storage Technical and Commercial insight
I&C Storage Co-location with larger demand customers Connection design options and DSR services
SoLa BRISTOL In-home storage plus PV. DC networks. Community
microgrid optimisation. Connect and Manage
Integration of domestic storage (connection options) DSR revenue stacking and smart grid integration
Grid Scale
Domestic
Industrial & Commercial Storage Project
Project Aims & Objectives
Promote innovation, flexibility and non-network solutions (50kW, 210kWh) Engage with Industrial and Commercial Customers to test Energy Storage Systems Determining the scope of terms and conditions and practical implications of using
batteries on the LV networks Attitudinal analysis and performance assessment of participants within the commercial
environment Development of new policies, processes and systems to support commercial
deployment of Energy Storage Systems Provide knowledge to inform new regulations.
Industrial & Commercial Storage Project
Trial sites
Industrial & Commercial Storage Project
Cardiff
Taunton
Spilsby
Boston
Operating modes
Varied test configurations at 4 WPD sites
Industrial & Commercial Storage Project
Spilsby
At peak demand, storage can be used to eliminate
peaks
Taunton
Demonstrating Backup/Islanding
Sensing either grid failure or a simulation of grid failure the energy storage system then
energises the selected maintained loads
Boston Cardiff
Active control by WPD – Own controller and scheduling
tools
Flexibility and scalability for various trials -Operating the
site at constant load, constant voltage, etc.
FFR, Triad Avoidance and DUoS Charge reduction
UK “Standard Battery Storage” approach. Most common use
case today in the UK
Peak Shaving + PV integration
Site works Delivery of the Energy Storage units to site (s)
– June 2017
Civil works – Plinth – all sites
Electrical connections: Spilsby – 27th of July - No shutdown Boston 25th of July - Shutdown for 3hrs Cardiff – 29/30th July. New busbar
installed for connection due to insufficient capacity in existing DB
Taunton – Planned for November
Commissioning: Spilsby – 14th August Boston – 16th August Cardiff – 9th October Taunton - December
Industrial & Commercial Storage Project
In general we can use the Tesla Powerpacks for….• Grid Support • Energy Management • Others
Industrial & Commercial Storage Project
Grid support1. Primary &
Secondary reserve2. Black Start
3. Load following/levelling
Uninterruptible Power Supply1. Emergency
backup2. Power Quality
Grid support1. Load Shifting
2. Voltage support3. Stability
4. Peak shaving
Energy Management1. Bulk Energy
Trading2. Arbitrage
Original load profile Load profile after Powerpack
What does this mean to a customer?
Deliver more options for customer connections through alternative connections –develop an alternative connection agreement for behind-the-meter
Triad avoidance Lower future DUoS charges due to the reduced reinforcement requirements Overall reduction in power consumption due to onsite generation Access to the flexible market Through storage customers can support the local grid independently and reduce strain
on the network
Industrial & Commercial Storage Project
LV Connect & Manage Project
Low carbon technology (LCT) connections on LV network:
LV Connect and Manage
Trend for ‘clustering’ Hard to predict and plan ahead reinforcement Traditional reinforcement is expensive and takes time Delayed customers’ connections Reverse Power Flow (RPF) impact on distribution network
LV Connect and Manage
LV Connect & Manage outline
£1.7m NIA project (April 2016 - March 2019) Ability to provide more power during non – peak hours Bi-directional power flow control via “Domestic Load Controller” (DLC) hardware Accelerate connection of LCTs (storage, EVs, heat pumps) Protect WPD assets from overload 6 distribution substations and 100 customers in Furzton, Milton Keynes (Energy
Storage) and West Bridgford, Nottingham (EV chargers)
LV Connect and Manage
Objectives
The project objectives are to trial and demonstrate:
Smart ANM solution for LV network Possibility of load management, as an alternative to network reinforcement BPL communication - Broadband over powerline (substation to customers’ homes) New business processes, based on proven, off-the-shelf technology, which can be
quickly and cost effectively deployed
LV Connect and ManageCustomer benefits
Intelligent interface to accelerate connection of LCTs (storage, EVs, heat pumps)
Avoid costly reinforcement Reduced amount of street works Provide flexibility to export more power
during non – peak hours or/and use stored energy in ‘self consumption’ mode
Consume energy in more sustainable, environmentally friendly way. Reduce amount of CO2 emissions
LV Connect and Manage
Hereford depot trial installation
Demonstration of PV/battery export control Demonstration of EV charge control
Customer side
LV Connect and Manage
LV substationinstallation
Hereford depot trial installation
LV Connect and Manage
Project roll out
Control & monitoring equipment is installed in 6 distribution substations:942197 GRASSCROFT BLETCHLEY (FURZTON)942196 PARKSIDE FURZTON942183 PERRACOMBE FURZTON
881417 WEST BRIDGFORD RUGBY ROAD881418 WEST BRIDGFORD COMPTON ACRES881089 WEST BRIDGFORD HAWTHORNE PARK
Customers engagement activities: Customer engagement meetings Leaflets Social networks Customer engagement video Website: www.wpdconnectandmanage.co.uk
LV Connect and Manage
Customer installations - Storage 38/50 sign-ups in Milton Keynes, 14 installations to date
LV Connect and Manage
Customer installations - EVs 27/50 sign-ups in Nottingham, 26 installations to date
Solar Storage Project
Project Overview
Solar Storage Project
Trial of a behind-the-meter battery energy storage system (300kW/600kWh) on a large solar site (1.3MW) in Somerset.
Quantify benefits of nine use cases for both the DNO & battery owner.
See how use cases be combined and revenues stacked.
Explore routes to market – challenges and rewards.
Making the case for energy storage in new connection offers.
© Western Power Distribution 2017
Solar Storage Project
Benefits split into 9 use cases
© Western Power Distribution 2017
Summary
Energy Storage Integration - Summary
Innovation projects are developing Real world learning on storage operation Knowledge to adjust technical standards Alternative connection variants – customer
choice
Challenges ahead Use of system charging Software interlocking of operational modes Open standards Cyber security
Battery & Energy Storage
T H A N K S F O R L I S T E N I N G
Faithful ChandaWestern Power DistributionInnovation and Low Carbon Networks Engineer+44 7595 [email protected]