IEEE Power & Energy Magazine - May/June 2017 - 28

table 1. Curtailment levels
on potential new PV capacity.
Total DER Capacity

7

9

11

13

Additional PV capacity
(MW)

2

4

6

8

Existing large PV capacity
(MW)

4

4

4

4

Existing constant power
output capacity (MW)

0.95

0.95

0.95

0.95

Peak load (MW)

3.97

3.97

3.97

3.97

Total load consumption
(GWh)

23.9

23.9

23.9

23.9

Results for Additional PV Capacity Only
Energy before curtailment
(GWh)

3.46

6.92

10.38

13.84

Energy curtailed (GWh)

0.02

0.94

2.61

4.57

% Energy curtailed

0.6%

13.6%

25.1%

33.0%

% Incremental
curtailment

0.6%

26.6%

48.3%

56.6%

Energy after curtailment
(GWh)

3.44

5.98

7.77

9.27

Maximum power before
curtailment (MW)

2

4

6

8

Maximum power after
curtailment (MW)

2

2.95

3.05

3.05

4.0

350

3.5

300

3.0

2.0

150

1.5

100

1.0

50

0.5

0

0.0

(MW)

2.5

200

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

Day

250

Hour

figure 8. PV curtailment on the 4-MW additional PV
capacity scenario.

Outcomes and Next Steps
REV stimulates the New York electricity sector to create
the platform for growth of DERs, markets, and customer
participation in electricity supplies, and the FICS project
delivers against these objectives in a number of ways. The
electric utility organizational and operational practices also
28

ieee power & energy magazine

require changes to reflect the opportunity afforded by flexible DER interconnection.
With clear benefits for DER customers, FICS should
be considered as one of several first and mainstream options
in the interconnection process. Further development of
FICS requires DER developers and DER interconnection planners to consider flexible interconnection alternatives as standard practice. Utility operational and systems
per sonnel will also need to normalize the operation of
the system around a dynamic hosting philosophy that
changes some of the infrastructure and operations methods in use today.
Arguably, most of the benefit from flexible interconnection accrues to the DER developer, with a quicker and less
expensive interconnection that makes previously uneconomical or impractical developments viable. Ongoing REV work
such as evaluating additional utility revenues and business
models could create financial incentives for utilities to identify opportunities to deploy flexible interconnection solutions, create the supporting infrastructure, and enhance customer service in alignment with overall REV goals. In April
2016, the New York Public Service Commission encouraged
this approach to be considered as an alternative to traditional
grid infrastructure investments by all investor-owned utilities in New York:
Utilities are also specifically directed to consider
emerging technologies that can be used to increase
the hosting capacity on a circuit, such as that currently
being evaluated in the AVANGRID Flexible Interconnect Capacity Solution Demonstration Project, on
an even footing with traditional utility infrastructure upgrades.
In addition, the platform for flexible interconnection
can also support additional functionality (e.g., DTT and
storage management), integrate further hosting capacity
enhancing solutions, and provide efficiency and performance benefits to the utility that can be monetized. Full
implementation requires a scalable, extensible, multifunctional
utility platform for flexible DER control that integrates
with legacy operational systems. In separate work, Smarter
Grid Solutions has just completed an 18-month project
at the National Renewable Energy Laboratory (NREL) in
Golden, Colorado. This project explored the application
of the ANM platform across smart home, smart campus,
and smart distribution case studies using power hardware
in the loop testing at NREL's Energy Systems Integration Facility. The results of this project demonstrate a significant increase in hosting capacity for DERs across all
case studies, and these results will be publicly available
in 2017.

Transition to Business as Usual
The FICS project represents the first time that flexible interconnection principles have been applied to the interconnection of DERs in New York. Once proven in the FICS project,
may/june 2017



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