IEEE Power & Energy Magazine - September/October 2021 - 83

The Vision
The overall vision underpinning the DER Roadmap is a future
where DERs are integral to a safe, reliable, and efficient electricity
system and where their full capabilities can provide
benefits and value to all customers. The approach is to manage
risks from minimum demand in a way that considers legacy
DERs, optimizes potential DER
resources, and creates downward
pressure on total power system
costs. Other options for dealing
with this challenge are significant
and costly network augmentation
or constraining the connection of
DERs to the network. They were
discounted at the outset.
The process for developing
2,500
2,000
1,500
1,000
the roadmap was pragmatic and
practical. Reflecting the urgency
of the looming challenge, the roadmap
was developed and released
in under a year. The development
process involved significant
industry and stakeholder input
through workshops and one-onone
consultations. From a shared
understanding of the problem
and vision, stakeholders worked
with the Energy Transformation
Taskforce to develop the actions
that would realize this vision. The
DER Roadmap team also worked
closely with AEMO and the local
transmission and distribution network
operator, which provided
key technical input and feedback.
Similarly, the approach to the
roadmap's implementation involves
working closely with implementation
partners (e.g., Energy Policy
WA, Western Power, Synergy,
AEMO, and the broader energy
sector) to refine and improve
detailed action plans and regulatory
amendments.
Released in April 2020, the
DER Roadmap outlines 37 actions
to ensure Western Australians can
continue to install and enjoy the
benefits of rooftop solar and new
energy technologies in SWIS,
unlocking greater value from these
devices for the benefit of the power
system. In the next section, we
discuss the four key themes in the
roadmap (Figure 4).
september/october 2021
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28 October 2018 2020
12:00 15:00 18:00 21:00 00:00
Time of Day
(a)
2022
2,400
2,200
2,000
1,800
1,600
1,400
1,200
1,000
Demand Met by
Rooftop Solar PVs
2024
2026
2028
DER Roadmap: Technology Integration
There is a range of actions in the roadmap related to the technical
capability of DER devices and the ability of the network and
system operators to observe and respond to the impacts of DERs.
The increasing penetration of embedded generation
and the subsequent high level of daytime exports are
Market Inefficiencies
System Security at Risk
Time
Operational Demand
(b)
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2,100
2,050
2,000
1,950
1,900
325 MW
or ~15%
of Load
Underlying Demand
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Time
(c)
figure 3. (a) Forecast operational demand levels in SWIS, (b) operational versus underlying
demand, 12-13 October 2019, and (c) system load fluctuations due to solar
PV volatility as observed by AEMO on 18 October 2019.
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Systemload (MW)
IEEE Power & Energy Magazine - September/October 2021

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