With our NEW Negative Rate Optimization feature, you can maximize your savings and avoid fines for negative rate export. This feature works with all SolarEdge inverters.

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Who is this for?

 System owners in European countries enrolled in a Dynamic Rate Plan are based on the day-ahead wholesale electricity market pricing provided by ENTSO-E and EPEX.

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When does Negative rate occur?

Typically, during periods of low electricity demand and high renewable energy production, grid operators penalize homeowners who export excess electricity to the grid – referred to as negative utility rates.

Typical day-ahead dynamic rate graph shown below. The area marked with light red color indicates the times and the duration where you can expect negative prices for exported energy.

 
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How does it work?

  • Powered by SolarEdge ONE, our 24/7 energy optimization system, Negative Rate Optimization automatically shifts the inverter production to "Zero Export" when export rates are negative and import rates are positive
  • Your inverter keeps producing, but solar is directed to power site loads instead of flowing to the grid
  • In case of both negative export rates and import rates, the inverter will pause production  
  • When the feature is enabled, SolarEdge servers will monitor the export and import rates and automatically control inverter AC production
  • The result: you’re protected from being charged for exporting energy during negative export periods, while still getting the benefit of solar at your home.

Let’s Start!

How to implement Negative Rate Optimization in mySolarEdge

Activating the NRO process (mySolarEdge app)

  1. In the mySolarEdge app, tap the Menu
  2. Go to Settings.
  3. Select Utility Rates.
  4. Review the information shown (based on your site configuration):
    - Import Rate Plan
    - Export Rate Plan
    - Utility Rate Effective Period
    - Dynamic Rates Settings (including Negative Rate Optimization)
  5. Configure the Import and Export rate plans as required.
  6. Turn on Negative Rate Optimization.
  7. For the full step-by-step process, follow the instructions here.

Important Notes!

  • NRO is available for all single and three-phase residential inverters, as well as all commercial inverters with FW version 3.x.x, 4.x.x or higher.
  • This feature is available for all PV system configurations and setups, i.e., with or without a battery; any number of smart loads, etc.
  • The feature capabilities are enhanced with an Export/Import Meter, which requires FW version 4.24.22 (residential), and 4.23.529 (commercial) 
  • This feature works together with all battery operating modes, i.e., customers who have a battery can configure the system to "Maximize Self-Consumption" and enable negative rate optimization at the same time.
  • To make sure that the negative rate optimization feature works correctly, it is important to add the additional fees being charged into the application, on the Utility Rates screen. You can find these amounts on your electricity bill or by contacting your electricity supplier directly.
  • Some countries have divided their area into separate Bidding Zones. If this feature is available in your country, it appears on the Utility Rates screen where you may select your Bidding zone.

Don’t wait!

Activate the Negative Rate Optimization feature today and enjoy the benefits of smart solar management.