John Goodin Manager Infrastructure and Regulatory Policy solarmarket PATHWAYS May 2 2017 The growth in renewables and distributed energy resources is transforming our energy supply portfolio ID: 594836
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Slide1
Integrating Distributed Energy Resource into Grid Operations
John Goodin
Manager, Infrastructure and Regulatory Policy
solarmarket
PATHWAYS
May 2, 2017Slide2
The growth in renewables and distributed energy resources is transforming our energy supply portfolio and how the grid functions.
23,000 MW
Approx. 5,400 MW BTM solar today
130 MW/Mo. Growth Rate
System Peak Demand was 46,232 MW on July 27, 2016Slide3
The transforming grid is creating new challenges and opportunities.
CPS1 is evaluated on a rolling 12-month average. Over the past few years, the rolling average has been declining as a result of some poor daily performances. Thus, the CAISO need to take measures to improve daily performance on days with higher variability.Slide4
High-DER future provides opportunity to re-think the T-D interface for an integrated decentralized system.New control & coordination needed at the T-D interfaceIf not controlled locally, DER variability is exported to the bulk system to be managed
No assurance of dispatch feasibility past T-D interface
How to
structure roles & responsibilities of DSO & ISO
at the
T-D interface?
Reliable, safe operation is essentialMust work as a whole system to achieve policy objectives
Must satisfy customer needs for choice, flexibility & resilience – the bottom-up drivers of change Page 4
Retail
Wholesale
Strive to control DER volatility and variability locally by circuit and substationSlide5
What tools and information must be developed and shared?Industry must develop better short-term DER operational forecasting techniques and methods DSO develop robust distribution system control and protection enhancements-- DER Management Systems (DERMS)DSO communicate advisory information on grid conditions to DER Providers so
that DER providers can submit feasible bids/schedules to the ISO
ISO provide schedule information to DSO to assess feasibility and system impacts.
DER provider inform ISO of resource limitations via updated schedules/bids or via outage management system.
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5Slide6
How can we address these impacts to benefit the grid and achieve GHG goals?Integrate renewables with renewables; smart/sensing invertersCo-locate solar and storage to shape output and responsePromote transportation electrificationLeverage local and regional collaboration and operational diversity Enable distributed energy resources and flexible loads
Develop fast, frequent autonomous load response
Deploy dynamic and time-variant rates that align with the needs of the transforming grid
Promote load shift and energy storage capabilities
Encourage targeted energy efficiency measures
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