tom bialek - integrated planning · 2019-03-29 · •subsidiary of sempra energy •serve over 3.6...
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Integrated Planning
Thomas Bialek, PhD, PE – Chief Engineer
March 29, 2019
• Subsidiary of Sempra Energy• Serve over 3.6 million people.• 1.4 million electric meters• ~900k natural gas meters• Smart Meter deployment is complete. • 4,100 employees support a territory covering 4,100
square miles in two counties and 25 cities.
• Peak load ≈ 4800 MW
• Provide customers with approximately 45% renewable energy mix (California’s leading utility) Transmission (69-500 kV)
• ~1,984 miles• ~154 miles underground• Over 14,000 structures• 162 substations• 375 substation transformersDistribution (12 kV & 4 kV)• ~10,606 miles underground (62%)• ~6,519 miles overhead (38%)• ~280 substations• ~1,000 circuits• ~220k wood poles
San Diego Gas & Electric Company
• 153,000+ private solar systems generating >1053 MWACp
• Approximately 35,000 plug-in electric vehicle, PEV’s, in the San Diego region
• 83.65 MW of batteries installed
DER’s at SDG&E
3
DER Deployment
Integrated Planning Process
Interplay of Planning Processes
7
Distribution Investment Deferral Process
Traditional wires
solutions identified
September 1Distribution Deferral Opportunity Report
Planned Investments
Candidate Deferrals
InitialDeferral Screens
September‐OctoberDistribution Planning
Advisory Group (DPAG) Review
Prioritization Metrics
Annual capacity planning within the Distribution Planning Process
(DPP)(Sub‐trans lines, substation, circuit)
June 1Grid Needs Assessment
TBDLaunch
Competitive Solicitation
Candidate Deferral Shortlist
(Prioritized)
• Technical• Timing
• Cost Effectiveness• Forecast Certainty• Market Assessment
December 1Tier 2 Advice
Letter recommending deferral projects
for CSF RFO
TBDCommission
issues disposition of Tier 2 Advice
Letter
8
Time scales & modelling tools in electric grid operationTime scales & modelling tools in electric grid operation Courtesy of Sacha Von Meier and Paul Denholm
Timestep
Spatial
msec sec min hr day yr
nation
state
metro
zipcode
feeder
device
Technical (e.g. Power flow)
Techno-Economic
Economic-focused
External Developer
NREL Tool
NREL Co-simulation
Simulation-only
Optimization sub-problem
Optimal-decision
Sim Power SystemsMathworks
RTDSRTDS
PSS/E (Siemens)PSLF (GE)…MATPOWER (Cornell)
MARFITNREL
eMegaSimOpal-RT
PSCAD
MHI
FESTIVNREL
PlexosEnergy Exemplar
GridLAB-DPNNL
OpenDSS (EPRI)...CyME (Cooper)Synergi (DNV-GL)DEW (EDD)Windmil (Milsoft)
PV, Storage simsNREL
HEMS-simNREL
FESTIVNREL
CBA ToolNREL
REPRANREL
HoST (NREL)...DPV (EPRI)
ReEDsNREL
RPMNREL
dSolar, d
Stor
age, dWind (N
REL)
Distribution Planningwith ADP (LDRD)
NREL
(Under development)
ReEDsNREL
RPMNREL
Distribution Planningwith ADP (LDRD)
NREL
(Under development)
Distribution Planningwith ADP (LDRD)
NREL
(Under development)
dSolar, d
Stor
age, dWind (N
REL)
Timestep
Spatial
msec sec min hr day yr
nation
state
metro
zipcode
feeder
device
Technical (e.g. Power flow)
Techno-Economic
Economic-focused
External Developer
NREL Tool
NREL Co-simulation
Simulation-only
Optimization sub-problem
Optimal-decision
Sim Power SystemsMathworks
RTDSRTDS
PSS/E (Siemens)PSLF (GE)…MATPOWER (Cornell)
MARFITNREL
eMegaSimOpal-RT
PSCAD
MHI
FESTIVNREL
PlexosEnergy Exemplar
GridLAB-DPNNL
OpenDSS (EPRI)...CyME (Cooper)Synergi (DNV-GL)DEW (EDD)Windmil (Milsoft)
PV, Storage simsNREL
HEMS-simNREL
FESTIVNREL
PlexosEnergy Exemplar
GridLAB-DPNNL
OpenDSS (EPRI)...CyME (Cooper)Synergi (DNV-GL)DEW (EDD)Windmil (Milsoft)
PV, Storage simsNREL
HEMS-simNREL
Timestep
Spatial
msec sec min hr day yr
nation
state
metro
zipcode
feeder
device
Technical (e.g. Power flow)
Techno-Economic
Economic-focused
External Developer
NREL Tool
NREL Co-simulation
Simulation-only
Optimization sub-problem
Optimal-decision
Sim Power SystemsMathworks
RTDSRTDS
PSS/E (Siemens)PSLF (GE)…MATPOWER (Cornell)
MARFITNREL
eMegaSimOpal-RT
PSCAD
MHI
PSCAD
MHI
Sim Power SystemsMathworks
RTDSRTDS
PSS/E (Siemens)PSLF (GE)…MATPOWER (Cornell)
MAFRITNREL
eMegaSimOpal-RT
10-6 10-3 103100 106 109 seconds
secondmillisecond minute hour day year decade
one a.c. cycle
high‐frequency switching devices,
inverters
protective relay operation
day‐ahead scheduling
wind and solar output variation T&D planning
carbon emission goals
demand response
service restoration
dynamic system response (stability)
AGC signal
hour‐ahead scheduling and resolution of most renewables
integration studies
synchro‐phasors
diagnostics & signatures
microsecond
EMTP
“As-is” communication and coordination links
Variability of Wind Resources
Energy Imbalance Market
• 11,800 MW Utility Solar• 7,900 MW Rooftop Solar• 33% 2020, 60% 2030, 100% 2045 Aspirational• GHG 80% below 1990 level by 2050• 2020 all new homes must have solar
Through March 17th• 2019 144,833 MWh Curtailed• 2018 83,000 MWh Curtailed
California’s Growing Need for Flexibility
March Fossil Generation Operations to 03/31/18 DaysNo Plants running at peak 18Plants Running at peak for pre‐contingency outage mitigation 11Plants running as scheduled 2
Islanding Event - May 21, 2015Microgrid powered all of Borrego Springs during a planned outageto repair poles damaged by lightning
Residential Solar Customer
14
Key Takeaways:
1. Energy usage is not the key indicator to cost of service
2. Renewable energy has changed how and when people use energy
3. Residential customers with solar have maximum 15-min demands that are around 40% higher than those without solar
4. The majority of residential solar customers (67%) saw an increase in demand the second year after solar adoption
Residential TOU Period
Existing Energy Storage
Ortega Hwy 1 MW/3 MWh&Ortega Hwy2 1 MW/3 MWh
Pala 500 kW/1500 kWh& Pala2 1 MW/2 MWh
Borrego MG 500 kW/1500 kWh&
Borrego AES 1 MW/3 MWh
Carmel Valley 1 MW/3 MWh
Bonita 2 MW/8 MWh
Escondido 30 MW/120 MWh
El Cajon 7.5 MW/30 MWh
16
Expedited Storage ProjectsCapacity Peak and Congestion Relief
Escondido – 30 MW / 120 MWh ArrayEl Cajon – 7.5 MW / 30 MWh Array
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