Maurice Ryan - Horizon Power
15
Onslow Power Infrastructure Upgrades preparing for a distributed energy future March 2017 CS10# 5055548
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Transcript of Maurice Ryan - Horizon Power
Onslow Power Infrastructure Upgrades
preparing for a distributed energy future
March 2017
CS10# 5055548
About Us
Horizon Power:
• Vertically integrated
• Covers all of WA except for South
West Interconnected System
• 50 km2 per customer
• 38 systems including 32
microgrids
• Onslow – remote like all of our
systems
About Onslow – Rugged and Sunny
Onslow – The Opportunity
• The need for a complete asset refresh.
• State agreement with a major resource company underpins the
opportunity.
• Our Blueprints suggests we can do something differently:
2016 2025 2050
Our Customers
• Customers are looking to take greater control of their energy to reduce energy
costs.
• Consumer demand for renewable energy is growing.
• Customers expect a choice of energy options, including more renewable energy
options.
• Customers want fewer restrictions to taking up solar.
• Customers want to see transparency, and active communication and education of
the community on renewable and other energy options.
• Energy costs should be as affordable as possible.
The DER Future
These are the key components of a DER Microgrid:
– Some are well developed.
– Some are under development.
– All will need to evolve together to realise the benefit.
The Backbone
The Infrastructure:
– 8 MW installed capacity (Gas)
– 1 MW BESS for spinning reserve
– 33 kV interconnecting cables
– Zone Substation
– 11kV Distribution network
Our modelling tells us that the
backbone infrastructure remains an
important part of future energy systems
– so we need to get it right.
Typical NPC breakdown over 10 years
The BESS
Bulk Energy Storage System:
– Fuel cost reductions through providing spinning reserve support traditionally provided by on-line reciprocating engine generators.
– Grid forming inverter.
– Rapid discharge capability.
– Lithium-ion technology.
– 1MW for 10 minutes
Load Duration Curve
Managing peaks is always a challenge in the North West
Stage 2
What’s the plan:
– Solar farm
– Energy storage
– Behind the meter solar (DER)
– Behind the meter storage (DER)
– Behind the meter control and monitoring
– Explore energy trading
We know its coming so it is incumbent on us to not only know how to operate it,
but know how to support and guide its evolution
What better way than to simulate the future energy system now
The Challenges
Summer
Winter
• How much renewable. • Managing low load scenarios. • Integrating with renewables:
– Behind the meter control. – Solar smoothing for cloud events. – Fault level impacts.
• Capacitance in the cables. • Reverse power flows. • More renewables than load. • Winter versus Summer. • Can shifting the peak defer future
capital.
When do we need to control DER
When output exceeds demand:
– DER will need to be controlled.
– Battery technology will provide
flexibility.
– Trading may be part of the solution.
Supporting Trials
• Real time monitoring of diversified PV production.
• Sky camera monitoring.
• Energy trading.
• DER supporting power quality:
− Reactive power
− Frequency
− Voltage
• Centralised Energy Storage System
