116
112
“B” Utilization
120
“B” Service
124
“A” Utilization
Presentation to:
SWEDE Conference
Austin, TX
May 2, 2013
Tom Weaver, PE
Historical
Voltage
Range
128
“A” Service
American Electric
Power’s Experience
with Volt/Var
Optimization
VVO Range
108
104
1
Volt VAR Impacts on Customer’s Motors
kVAR ↓ ~ 20%
kW ↓ ~ 8%
Real Power
consumption
is 8% lower @
115V than at
125V
2
Volt VAR Optimization Architecture
Volt VAR Controllers
Mesh Master
EOL Monitors
Mesh Network
Line
Regulators
Line
Capacitors
Fiber
or Mesh
DMS - GENe
3
AEP’s Volt / VAR Optimization
Technology Deployments
• AEP Ohio :
– 17 circuits in service
– Additional circuits being considered to meet EE State Targets
• Indiana & Michigan Power Co.:
– 9 circuits in service
– Planning to include VVO as an EE Program
• Public Service Company Oklahoma :
– 11 circuits in service
• Kentucky Power Co. :
– 25 circuits going in service in 2013
– Planning to include VVO as an EE Program
4
AEP Ohio: Gahanna – 4505 Voltage Profile
CAP 2
EOL 2
REG CAP 3
Substation
Normal Operation
With AdaptiVolt™ VVO
Without AdaptiVolt™ = 6-7-11 @ 4:30 pm
With AdaptiVolt™ = 6-6-11 @ 4:30pm
126.0
124.0
122.0
120.0
118.0
116.0
0
20
40
60
80
100
Flatter voltage profile, lower voltage, reduced tap changer operations
5
AEP Ohio: East Broad
1406 Voltage Profile
Normal Operation = 7-23-10 @4:44pm
Volt / Var Control Operating = 7-24-10 @4:44pm
CAP 1
CAP 2
REG 1
CAP 3
REG 2
CAP 4
EOL 55
Substation
Normal Operation
With VVC
126.0
124.0
122.0
120.0
118.0
116.0
6
Demand and Energy Reduction Results
•
VVO technology works as-expected

Testing demonstrates ~2-4% energy and demand reduction is
achievable.
7
Example of Energy Savings on Circuit 4503
8
SCADA / PI View
9
SCADA / PI View
10
“Value” of VVO Compared to
Generation Alternatives
“LEVELIZED COST OF ENERGY ANALYSIS “– VERSION 3.0 Lazard, February 2009
Levelized cost of VVO is in the low part of the Energy Efficiency
range due to low initial capital cost and no on-going fuel cost
11
VVO for Energy Efficiency /
Capacity Reduction
•
Energy Efficiency (24/7 Operation)
– Help meet state Energy Efficiency targets
– Receive incentives / participate in DR markets
– TRCs 2 to 3 – better than many current programs
– Reduce Energy Consumption by Customers
– Not limited by “participation rates”
– Reduce Emissions
– Relieve Transmission Congestion
•
Capacity (Demand Reduction Only )
– Reduce amount of capacity required at peak / critical times
– Short payback period if generation charges are based on peak demand
– Defer investment in capacity replacement or upgrades
– Engage in DR Market
– Relieve Transmission Congestion
12
Questions?
Tom Weaver – tfweaver@aep.com
13