Effective Solar PV Requirements for Embedded Networks
Discover the new requirements for solar PV systems in embedded networks, effective from January 2025. Explore scenarios for greenfield and brownfield sites, emergency backstop capabilities, and more to ensure compliance with regulations.
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Presentation Transcript
Embedded Networks Solar Emergency Backstop Effective 1 January 2025
1. New requirements for solar PV in embedded networks 2. Scenarios Greenfield site 2a. Greenfield site. Fully CSIP-AUS enabled 2b. Greenfield site. Partially CSIP-AUS enabled 3. Scenarios Brownfield site 3a. Brownfield site. New solar CSIP-AUS enabled 3b. Brownfield site. New solar export limited 3c. Brownfield site. New large solar CSIP-AUS enabled 3d. Brownfield site. New large solar CSIP-AUS enabled 3e. Brownfield site. New solar GMM controlled Contents
New, upgraded or replaced solar PV generation within an embedded network must be emergency backstop enabled, allowing the Distribution Network Service Provider (DNSP) to curtail or disconnect the generation when called upon by the Australian Energy Market Operator (AEMO) New requirements for Solar PV in embedded networks The emergency backstop capability can be achieved using: CSIP-AUS control of the inverter Generator Monitor Meters Where the Embedded Network Operator (ENO) cannot practicably apply the emergency backstop capability to solar systems within the Embedded Network (EN), the ENO must ensure that each individual solar PV system which cannot practically connect are export limited to 0kW Legacy solar PV systems within an embedded network will be backstop exempt Standalone or AC coupled Battery Energy Storage Systems (BESS) will also be backstop exempt Nov 2024 3 Solar PV in Embedded Networks
Scenario 2a CSIP-AUS commands from DNSP DNSP CB Greenfield site Greenfield site Fully CSIP Fully CSIP- -AUS enabled AUS enabled DNSP DNSP CB Customer Router Internet A greenfield EN site with individual dwelling solar systems, large common area solar and battery energy storage systems (BESS) Tariff Meter M Customer CB Site Generation Control System M1 All solar generation in the EN is emergency backstop enabled via CSIP-AUS commands from the DNSP. The ENO implements a single site generation control system to interface with the DNSP ENO S Common loads S S BESS is emergency backstop exempt S S S S BESS Small Solar PV & individual loads Large Solar PV Nov 2024 4 Solar PV in Embedded Networks
Scenario 2b Greenfield site Greenfield site Partially CSIP Partially CSIP- -AUS enabled CSIP-AUS commands from DNSP AUS enabled DNSP CB DNSP A greenfield EN site with individual dwelling solar systems, large common area solar and Battery Energy Storage Systems (BESS) DNSP CB Customer Router Internet Tariff Meter M Customer CB Site Generation Control System Large solar generation in the EN is emergency backstop enabled via CSIP-AUS commands from the DNSP. The ENO implements a single site generation control system to interface with the DNSP M1 M2 S Common loads ENO S M2 Individual solar cannot practicably connect to the controls system and is export limited at the individual site with export metering (M2) installed for each location S S S M2 S M2 S BESS BESS is emergency backstop exempt Small Solar PV & individual loads Large Solar PV Nov 2024 5 Solar PV in Embedded Networks
Scenario 3a Brownfield site Brownfield site New Solar CSIP New Solar CSIP- -AUS enabled AUS enabled CSIP-AUS commands from DNSP DNSP CB A brownfield EN site with individual dwelling solar systems, large common area solar and battery energy storage systems (BESS) DNSP DNSP CB Customer Router Internet All new solar generation in the EN is emergency backstop enabled via CSIP-AUS commands from the DNSP. The ENO implements a single site generation control system to interface with the DNSP Tariff Meter M Customer CB Site Generation Control System M1 Commissioning of the new site generation control capability will need to be performed manually and take into account existing solar generation. Site export limit zero commands will ramp down all controlled generation to zero if the legacy solar is generating and the site is exporting ENO S Common loads S S New small Solar PV & individual loads S S S S The legacy solar remains emergency backstop exempt BESS Existing small Solar PV & individual loads Large Solar PV BESS is emergency backstop exempt Nov 2024 6 Solar PV in Embedded Networks
Scenario 3b Brownfield site Brownfield site New Solar export limited New Solar export limited DNSP CB DNSP A brownfield EN site with individual dwelling solar systems, large common area solar and battery energy storage systems (BESS) DNSP CB Tariff Meter M Customer CB New solar generation cannot practicably be connected to a common control system. Each new system is export limited M2 S ENO ENO to provide confirmation that the newly installed solar is export limited at the individual site, with export metering (M2) installed for each location Common loads M2 S S New small Solar PV & individual loads S S S The legacy solar remains emergency backstop exempt S BESS Existing small Solar PV & individual loads BESS is emergency backstop exempt Large Solar PV Nov 2024 7 Solar PV in Embedded Networks
Scenario 3c Brownfield site Brownfield site New large solar CSIP New large solar CSIP- -AUS enabled A brownfield EN site with existing individual dwelling solar systems CSIP-AUS commands from DNSP AUS enabled DNSP CB DNSP DNSP CB Customer Router Internet Tariff Meter M The new or upgraded large solar generation in the EN is Emergency Backstop enabled via CSIP-AUS commands from the DNSP. The ENO implements a single site generation control system to interface with the DNSP Customer CB Site Generation Control System M1 ENO S Common loads Commissioning of the new site generation control capability will need to be performed manually and consider existing solar generation. Site export limit zero commands will ramp down all controlled generation to zero if the legacy solar is generating and the site is exporting S S S S S S New BESS Existing small Solar PV & individual loads The legacy solar remains emergency backstop exempt New large Solar PV BESS is emergency backstop exempt Nov 2024 8 Solar PV in Embedded Networks
Scenario 3d Brownfield site Brownfield site New large solar CSIP New large solar CSIP- -AUS enabled A brownfield EN site with existing individual dwelling solar systems CSIP-AUS commands from DNSP DNSP CB AUS enabled DNSP DNSP CB Customer Router Internet Tariff Meter M Customer CB Site Generation Control System The new or upgraded large solar generation in the EN is Emergency Backstop enabled via CSIP-AUS commands from the DNSP. The ENO implements a single site generation control system to interface with the DNSP M1 ENO S Common loads Commissioning of the new site generation control capability will need to be performed manually and consider existing solar generation. Site export limit zero commands will ramp down all controlled generation to zero if the legacy solar is generating and the site is exporting S S S S S S Existing large PV Existing small Solar PV & individual loads The legacy solar remains emergency backstop exempt New large Solar PV Nov 2024 9 Solar PV in Embedded Networks
Scenario 3e Brownfield site Brownfield site New large solar GMM controlled New large solar GMM controlled DNSP CB DNSP A brownfield EN site with existing individual dwelling solar systems DNSP CB Tariff Meter M The new large solar generation in the EN is emergency backstop enabled via the Generator Monitor Meter (GMM) solution Customer CB Emergency backstop control signals trip the generator CB. Common loads ENO S GMM S S The legacy solar remains emergency backstop exempt S S S BESS is emergency backstop exempt S New BESS Existing small Solar PV & individual loads New large Solar PV Nov 2024 10 Solar PV in Embedded Networks
