Utility DSO Perspective Bulk System Reliability Assessments Teresa Fallon
Outline Ireland s Electricity Structure Collaborative Initiatives Demand Resources & Potentials ti How to Harness the potential 2
Irish electricity Industry Other Generators Interconnectors Transmission System Owner Distribution System Owner / Operator Electricity it Suppliers 2.3 million customers Market ESB Generation Others
Distributed Resources Embedded Wind/PV Smart Metering Gateway Flexible Loads EV s Heat/Water Smart Distribution Circuits
Wind Connections MW System Demand 2020 3990 1460 MW 1260
ESBN Wind Demonstration Project A. Exploration of Voltage / Var control on Distribution connected windfarms B. Use of voltage regulators to limit voltage rise C. Single transformer cluster stations for windfarms
Distributed Resources Embedded Wind/PV Smart Metering Gateway Flexible Loads EV s Heat/Water Smart Distribution Circuits
Smart Meter Measurement Communications Technical Operations 8
National Smart Meter Customer Behaviour Trial 9
Typical daily usage change observed 4% 2% 0% -2% -4% -6% -8% Overall Peak Day Night -10% -2.52%* -8.81%* -2.57%* 0.12%* 00:30 01:30 02:30 03:30 04:30 05:30 06:30 07:30 08:30 09:30 10:30 11:30 12:30 13:30 14:30 15:30 16:30 17:30 17:30 19:30 20:30 21:30 22:30 23:30
Distributed Resources Embedded Wind/PV Smart Metering Gateway Flexible Loads EV s Heat/Water Smart Distribution Circuits
Minister for Energy with CEO ESB, with positions for national plan for 3,500 EV Charging Points by 2011 1500 On-Street 2000 Home 60 Fast charge units
Impact on load Profile nd (MW) Dema 7000 6500 6000 5500 5000 4500 4000 Charging during low demand 3500 00:00 06:00 12:00 18:00 Electrical demand on an average day in 2020 Load without EV s Load with controlled charging of 250,000 vehicles
Time series analysis 140 Power Dem mand (kw) 120 100 80 60 40 30% EVs 15% EVs Base case 20 0 12:00 15:00 18:00 21:00 00:00 03:00 06:00 09:00 12:00 Time (hr:mm) 14
Multiple l Benefits of Active Demand Supplier Follow SMP minimise wholesale costs Offer choice to customer Customer Engagement and Relationship building Distribution Network Operator Manage Local peaks reducing network investment Maximise use Renewable integration through Wind/embedded generator Twinning Reduce network losses through maximum use of Embedded generation and smoothing local demand profile Transmission System Operator Management of Constraints Management of generation requirements System reserve Customer! More choice and control Lower wholesale costs Lower Network Costs Direct Savings for Management
Conflicts can occur Scenario TSO DSO Supplier Low Market Price, Windy Day Transmission Constraint No DSO Constraint High Market Price, Windy Day DSO Constraint without load Generation reserve tight Low Market Price, No Wind DSO Constraint load constraint No Transmission Constraint
Distributed Resources Embedded Wind/PV Smart Metering Gateway Flexible Loads EV s Heat/Water Smart Distribution Circuits
Centralised Distribution System SCADA Control Substations monitored and controlled by DCCs MV DA 38kV 38kV 220kV Commands / Month from DCC s
Smart Green Circuit Operational/Continuity Efficiency Improvements
Dungloe Smart Green Circuits Three Rural Islands being Assessed Kerry Gurranbane Dungloe Kilcolgan Urban Conservation Voltage Reduction Trial Sallynoggin Kilcolgan Sallynogg Kerry, Gurranbane
Operational/ Continuity Technologies Ti Tripsaver Loop Automation FPI ASC
Efficiency Demonstrations Embedded Wind Dynamic Network Configuration Closed Loop /Dynamic Configuration 20kV Conversion Low Impedance Transformers Conservation Voltage Reduction Var Control High Power Factor 97% LV voltage optimisation Micro-planet
Leverage these Resources at Bulk Level Distribution System Clear Targets Continuity CMI/CML, Quality EN 60160, Efficiency Distribution System Advancements Expand OMS DMS Real times Efficiency Optimisation as well as Continuity Self Healing BULK SYSTEM RELIABILITY? Increase Visualisation Control ESB Networks Remote Network Control 1400 -> 13,000 Integrate Smart Meters to Operations in practical way Voltage Conversion
TSO Dispatch >5MW Work Together 200MW Flexible Load Not leveraged by DSO Clear Identification of requirements from TSO s Reserve tiers for Flexible load parameters Benefit of voltage support Interruptible loads. Define the business case
Thank You Any Questions?