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Advanced Features

bolagnaise edited this page Mar 1, 2026 · 20 revisions

Advanced Features

AEMO Spike Detection (Tesla & Sungrow)

Automatic battery discharge during AEMO wholesale price spikes for VPP participation (Globird, AGL, Engie).

Tesla Powerwall

When prices exceed your configured threshold (e.g., $300/MWh):

  1. Saves your current tariff configuration and operation mode
  2. Switches to autonomous (TOU) mode
  3. Uploads a spike tariff with very high sell rates to trigger battery export
  4. Restores original operation mode when spike ends
  5. Restores normal tariff when prices return to normal

Dual Powerwall: For dual Powerwall setups, spike detection saves and restores state for both gateways independently. Both Powerwalls discharge simultaneously during a spike.

Sungrow SH-series

For Globird VPP users at the $3000/MWh spike threshold:

  1. Detects when AEMO price reaches $3000/MWh
  2. Switches battery to forced discharge mode via Modbus
  3. Sends push notification when spike starts
  4. Restores normal operation when spike ends
  5. Sends push notification when spike ends

Note: Sigenergy users on Globird don't need this feature as Globird natively supports Sigenergy for spike exports.

Monitoring Frequency: Checks AEMO prices every 1 minute.


Solar Curtailment

Prevents paying to export solar during negative pricing periods (price <= 0c/kWh).

Battery System Method Behavior
Tesla Export rules API Sets export to "never", restores to "battery_ok" when positive
Sigenergy Modbus TCP Sets export limit to 0kW (load-following mode)
FoxESS Modbus TCP Enables remote control with zero active power, restores on positive

Sigenergy/FoxESS Load-Following Mode:

  • Solar continues powering the house
  • Battery still charges from solar
  • Only grid export is blocked during negative prices

Spike Protection (Amber Only)

Prevents your battery from charging from the grid during Amber price spikes. When wholesale prices spike, your battery may see an arbitrage opportunity and charge from grid — this feature stops that.

When Amber reports spikeStatus: 'potential' or 'spike', buy prices are overridden to ensure charging from grid is always unprofitable during spikes.


Export Price Boost

Artificially increases export prices sent to your battery system to trigger exports at lower price points. Useful when Amber export prices are in the 20-25c range where the battery's algorithm may not trigger exports.

Setting Description Default
Enable Export Price Boost Toggle on/off Off
Price Offset (c/kWh) Fixed amount added to all export prices 0
Minimum Price (c/kWh) Floor for export prices 0
Activation Threshold (c/kWh) Boost only applies at or above this value 0
Boost Start Time When to start applying boost 17:00
Boost End Time When to stop applying boost 21:00

Chip Mode

Suppress battery exports during configured hours (typically overnight) unless the price exceeds a threshold.

Setting Description Default
Enable Chip Mode Toggle on/off Off
Start Time When to start suppressing exports 22:00
End Time When to stop suppressing exports 06:00
Price Threshold (c/kWh) Allow exports only above this price 30

AC-Coupled Inverter Curtailment

Control AC-coupled solar inverters directly during negative pricing periods. Works with any battery system.

Supported Inverter Brands

Brand Connection Models
Sungrow Modbus TCP SG series (string), SH series (hybrid)
Fronius Modbus TCP Primo, Symo, Gen24/Tauro, Eco
GoodWe Modbus TCP ET, EH, BT, BH, ES, EM series (hybrid)
Huawei Modbus TCP SUN2000 L1, M1, M2 series
Enphase HTTPS API IQ Gateway, Envoy-S (microinverters)
Zeversolar HTTP API TLC series, Zeversolair Mini/TL
FoxESS Modbus TCP H1, H3, H3-Pro, H3 Smart, KH

Demand Charge Tracking

Monitor peak demand for capacity-based electricity plans.

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