An Hour, A Day, A Month in the Life of a BPA Load Following Customer
Kurt Conger Director of Power Supply, Transmission
and Regulatory Policy Northern Wasco County PUD
Profile of NWCPUD • NWCPUD serves 9,900 retail customers in Northern Wasco
County • Load Following PF Customer – BPA Balances Load Variations • FY16 TRL = 83.715 aMW • FY16 RHWM = 64.133 aMW • 1 Existing Resource – McNary Fishway 50% Share = 4.404
aMW • ARHWM = 15.178 aMW • 1 New Non-Federal Resource: 15 MW market purchase • 5 MW hydro at The Dalles Fishway: output sold to PGE LTF • Five member governing board that sets policy and rates
10/21/2015 Kurt Conger, NWCPUD 2
Transmission
• BPA NT Customer – Dedicated Network Resources at MNF and MIDC – Scheduled using the ISAAC Portal (BPAP)
• PTP Reservation for TDF: 6 MW • Real Power Losses Provided by BPA Power
through enabling agreement and confirm • NWCPUD owns 115 and 69 kV transmission lines
– Provides transfer service for BPAP – Receives revenue from BPAT for use of 115 kV
backbone as network facilities
10/21/2015 Kurt Conger, NWCPUD 3
10/21/2015 Kurt Conger, NWCPUD 4
The Dalles Dam
Celilo Converter Station
NWCPUD Diversified Load:
NWCPUD Powerflow Test Cases
Discovery
SPEARFSH
MW 2 0 Mvar
4 MW
1 Mvar
BIG EDDY
A
Amps
DISCV NWA
Amps
SEUFERTA
Amps
MW 6 2 Mvar
CHEIGHTSA
Amps
MW 16 5 Mvar
3MILE TPA
Amps
THREEMIL2ND ST
A
Amps
MW 19 6 Mvar
THE DALS
A
Amps
A
Amps
MW 8 2 Mvar
3.600 MW 1 Mvar
ar
BIGEDDY1
A
Amps
A
MVA
BIG EDDY
BIGEDDY2
TDA PH3
ENDERSBY
A
Amps
2.500 MW 1 Mvar
JOH
CELILO1
CELILO2
BIGEDDY3
MAUPIN
TDA PH4
LYLE TA
Amps
A
Amps
A
mps
DUFUR
A
Amps
1.700 MW 1 Mvar
7MILE
A
Amps
HARVALUM
PINE HOL
A
Amps
1.500 MW
0 Mvar
TYGH VSW
A
Amps
0.900 MW
0 Mvar
TYGH VLY2.000 MW
1 Mvar
A
Amps
WAMIC
A
Amps
3.100 MW
1 Mvar
A
MVA
A
Amps
HOOD RVR
A
Amps
TDA PH1 TDA PH2
SPRINGCK
71.0 MW
53.2 MW
76.9 MW
6.641 MW
29.7 MW
48.3 MW 54.9 MW
70.4 MW
4.2 MW
70.5 MW
123.9 MW
65 MW 65 MW 223 MW 309 MW
20.2 MW
167.3 Mvar
ER2 MW
A
MVA
1.03 pu
1.04 pu1.04 pu
1.04 pu
1.04 pu
53.1 MW
1.04 pu
1.04 pu
79.1 MW
55.7 MW1.00
120.00 kV
5 MW
1.04 pu
MW 41 23 Mvar
A
Amps
A
Amps
A
Amps
EECLOUSE T
Dalles, The 115 kV Gen130.00 MW
Dalles, The 230 kV Gen1033.40 MW
TDA PH5
A
Amps
0.0 Mvar
TDA PH6
A
Amps
325 MW 171 MW
DEMOSS
Before Operations: Long-Term Planning
• Planning establishes the framework that all short-term operations are conducted to implement or augment
• BPA-NWCPUD Power Sales Agreement, circa 2009 – Until the BP-16 RHWM process, life was only slightly more complicated than the
typical PF customer – For BP-16, Net Requirement exceeded RHWM – Firm, flat power purchases used to meet ARHWM requirements started on
October 1, 2015 – Potential for NLSLs exists – looking at the new NR rate ESS provisions – May embark on VER acquisitions, but not in the near-term
• BPA Transmission – NT Agreement with multiple Transmission Service Requests – Paths:
• BPA Power to NWCPUD NT Load • Non-Federal Resources to NWCPUD NT Load • PTP reservation for sale of The Dalles Fishway output
– NAESB Electric Industry Registry (EIR) entries: NWC, NWC01, NWCTDF, Sources and Sinks
10/21/2015 Kurt Conger, NWCPUD 5
A Month…
• BPA Bill Reconciliation – A discipline that all customers need to develop – Knowing the derivative of every billing determinant is
essential for long and short-term resource and financial planning
• Load resource schedules in the Integrated Scheduling Allocation After-the-Fact Calculation (ISAAC) Portal – Creates frag tags on the load side that are completed
by the Non-Federal resource – Component of Transmission Scheduling Services (TSS)
in Exhibit F of the BPA Power PF agreement
10/21/2015 Kurt Conger, NWCPUD 6
A Day…
• Preschedule days are important – Non-Federal generating resources that are variable
need to be adjusted to expected values – BPA Transmission requires Customer Data Entry (CDE)
generation estimates – Alarms occur in preschedule and real-time for
deviations or missing gen estimates
• Done right and Real-Time should be uneventful! – Forced outages are the exception
10/21/2015 Kurt Conger, NWCPUD 7
An Hour…
• If the Long-Term, Monthly and Daily planning are done well, the hours are only disrupted by unscheduled events – Availability factors for NWCPUD’s hydro units are
typically higher than 98% – Plants trip for abnormal conditions
• Forced outages are handled by on-site operators during business hours and on-call operators after business hours.
• CDE and e-Tag quantities may need to be adjusted to minimize generation imbalances
10/21/2015 Kurt Conger, NWCPUD 8
Prospective Issues
• Energy Efficiency and Conservation – Conservation Potential v. NWPCC expectation
• Demand Response – theory and practice • Distributed Generation – solar roofs or
community solar? February 2014 • • Marijuana Grow Operations
10/21/2015 Kurt Conger, NWCPUD 9
NWPCC 7th Plan Energy Efficiency • 1,400 aMW by 2021 • 3,100 aMW by 2026 • 4,500 aMW by 2035
10/21/2015 Kurt Conger, NWCPUD 10
That’s about 25% of the total regional load that we need to avoid through EE.
New Rules and Regulations
• EPA 111(b) and (d) aka “Clean Power Plan” – NWCPUD has very little exposure to 111(d) rules
governing existing fossil fueled plants. – Under 111(b), governing new plants:
• Can a Load Following customer consider natural gas plants (IC, CT, CCCT) as a future resource?
• Does nuclear power have a future in this context? • FERC, WECC and NERC
– Hydro licensing – Deregistration: TO be or not TO be? – BPA’s role as the TO, TP, TOP and all round BA
10/21/2015 Kurt Conger, NWCPUD 15
BPA Past, Present and Future
• You gotta love ‘em • Guidance through the months, days and hours • Future Concerns:
– Rate competitiveness – New ventures NWPP MC, ISO EIM – Fisheries – Loss of human capital, retirements, – Aging system: hydro, transmission, controls
10/21/2015 Kurt Conger, NWCPUD 16