Transcript Advanced Microgrid Solutions - The Joint Utilities of New York

Increasing Hosting Capacity
with
Hybrid Electric Buildings®
For Discussion Purposes:
NY Joint Utilities Distribution
System Planning Engagement
Group
Web Meeting
August 4th, 2016
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Increasing Hosting Capacity
with
Hybrid Electric Buildings®
Four examples:
1. Increasing capacity on constrained circuits
2. Load shift to manage backfeed +/or ramp
3. Smooth intermittent renewables
4. Improve voltage drop/regulation
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1.
VIRTUAL POWER PLANTS – 20 Pacifica, Irvine CA
BATTERIES CLUSTERED IN STRATEGIC URBAN LOCATIONS
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1.
NEW CAPACITY ON CONSTRAINED CIRCUITS – 20 Pacifica
HIGH VALUE RESOURCES FOR THE BENEFIT OF THE UTILITY
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1.
NEW CAPACITY ON CONSTRAINED CIRCUITS – 20 Pacifica
HIGH VALUE RESOURCES FOR THE BENEFIT OF THE UTILITY
© 2016 Advanced Microgrid Solutions, Inc. | Proprietary and Confidential
1.
NEW CAPACITY ON CONSTRAINED CIRCUITS
HIGH VALUE RESOURCES FOR THE BENEFIT OF THE UTILITY
50 MWs
200 MWhs
Hundreds of participating C&I customers
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2. Large Campus with Solar + Storage
Simulation Date: 9/10/2015 (Solar Only)
◄ Solar Only (3.117 MW proposed)
Old Peak
New Peak
480 kW
BEFORE
Global Annual
Peak (kW)
Estimated Solar Capacity Value: 15%
AFTER
5,088 KW
REDUCTION
%
4,608 KW
480 KW
9.4%
Energy ($/yr)*
$ 1,585,885 $ 1,267,549
$ 318,336
20%
Demand ($/yr)
$
$
431,449 $
$2,044,850
Total ($/yr)
392,662
$1,687,727
38,787
9%
$357,123 17.5%
*Assumes Constellation Rate based on CAISO Day Ahead Market Data. Does not include Bloom PPA costs
Simulation Date: August - 30 days (Solar + Storage)
880 kW
Old Peak
New Peak
◄ Solar + Energy Storage System
ENERGY STORAGE SYSTEM SIZE: 1 MW / 6 MWh
BEFORE
Estimated Solar + Storage
Capacity Value: 27%
Legend:
Net Load (before storage)
Net Load (after solar + storage)
AFTER
Global Annual
Peak (kW)
5,088 KW
3,967 KW
Energy ($/yr)*
$ 1,585,885
$ 1,266,164
Demand ($/yr)
$
$
Ops Efficiency
with 24/7 fault detection
Total ($/yr)
$ 2,044,850
861,231
353,398
$ 1,478,290
REDUCTION
1,121 KW
22%
$
319,721
20%
$
78,051
18%
~$ 130,000
5%
$ 566,560
28%
Note: systems can be wired to provide up to 1 MW of back-up power for up to 60 minutes
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%
3.
Solar + Storage – Power Quality
Adding large MW solar installations at sites likely lead to local voltage and power-flow issues
when solar is intermittent during cloudy days or other inclement weather / variables. ►
Battery can be used to minimize short duration deviations from solar (easing integration) ▼
PV Output pre-battery storage
PV Output smoothed with battery storage
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4.
Batteries and CVR
A 250kW BTM battery is attached to a distribution
feeder with a 10MW peak load.
During high load periods, the battery injects 250kW
of Real Power into the feeder
•
This raises end-of line voltage levels 5%, and
average voltages 2.5% (P=VI)
To implement CVR, the higher EOL voltages allow
LTC voltage settings to be reduced 5%, resulting in
average voltage reductions of 2.5% across all loads
•
Assuming a CVRf = 0.7, a 2.5% voltage
reduction results in a 1.75% energy and
power reduction across the entire feeder load
Voltage Drop and Voltage Regulation - Example
S/S
LTC
Tesla
Transformer
Load Tap
Changer
1
2
3
4
5
50,000 kw
10,000 kva
250 kva
2.5%
200 hours
Customer
Loads
126V
ANSI
Standard
C84.1-1995
“A” Service
Voltage
Range
Average
Feeder
Voltage
Reduction
114V
70% improvement to RA potential;
$300+/kW-yr in energy efficiency benefits
Voltage improvement from Battery
SubStation size
Average Feeder peak kW
battery P
Delta V
Assumed battery hours of operation
7
127V
Combining batteries with CVR has significant
benefits:
•
•
6
CVR Energy Savings
Capacity factor
Feeder annual energy consumption
CVR factor - energy
Battery conversion loss
Annual Energy Savings
Avoided cost of energy & capacity
Annual benefit
Benefit per kW of battery
110V
0.45
39,420,000 kWh
0.7
8,500 kWh
681,350 kWh
$0.12 $/kWh
$81,762
$327 $/kW
Peak Capacity Savings
Feeder Peak load
Battery Load Reduction
CVR factor - peak
CVR Load Reduction
Total Peak Load Reduction
Peak Avoided Cost
Annual benefit
Benefit per kW of battery
Source: Graphic Adapted from Application of Automated Controls for Voltage and Reactive Power
Management – Initial Results. DOE – Smart Grid Investment Grant Program, December 2012
10,000 kW
250 kW
0.7
175 kW
425 kW
$300 $/kW-yr
$127,500
$510 $/kW-yr
Mike Jackson
AMS – NE
22 Worcester Square
Boston, MA 02118
508-259-0260
www.advmicrogrid.com
© 2016 Advanced Microgrid Solutions, Inc. | Proprietary and Confidential