Outage Watch — Preparing Systems for Potential Outages
Application Note | lunarenergy.com | Rev. 1 | 1/22/2026
Summary
Outage Watch is an automated feature that prepares Lunar Systems for potential outages by monitoring severe weather alerts. When enabled and an alert is detected, the system automatically enters Outage Prep mode — charging from the grid and holding the battery at full charge for the duration of the alert. When the alert ends, the system returns to its previous operating mode.
Note: Outage Watch is enabled by default when a system receives PTO.
Enabling/Disabling Outage Watch
In the Lunar App
Scroll up on the home page and tap the battery card.
Scroll to the bottom of battery settings page.
Use the toggle to turn Outage Watch on/off.
In Gridshare
Search for the site by Site ID or Site Reference.
Click Devices → Lunar Inverter → Control Settings.
Toggle Outage Watch and click "Submit changes."
Manually Set a System to Charge from Grid
Installers can force a battery to charge from the grid by changing the device mode to "Outage Prep" in Gridshare's inverter Control Settings. This is useful for localized utility outages due to maintenance. Note: Systems manually set to Outage Prep must be manually returned to their previous mode.
Understanding Outage Prep Mode
In the Lunar App, users can see: when the battery is predicted to reach 100%, whether the mode was triggered automatically or by the installer, and which mode the system will return to once the alert passes. Previous events are visible on the power overview chart.
Pausing Outage Watch Events
Customers can pause an active Outage Prep event for 24 hours by going to battery settings and tapping "Pause for 24h." The system reverts to its previous mode for 24 hours.
Weather Alerts that Trigger Outage Watch (NOAA/NWS)
Hurricane warning/watch, Tropical storm warning/watch, Red flag warning, Thunderstorm warning, Severe thunderstorm warning, Tornado warning, Winter storm warning, Blizzard warning, High wind warning, Ice storm warning, Snow squall warning, Wind chill warning, Flash flood warning, Flood warning, Coastal flood warning, Lakeshore flood warning.
FAQs
Can customers opt out of individual events? Yes — their system returns to regular operation mode and Outage Watch won't trigger again for 24 hours.
Can installers force grid charge remotely? Yes — via Outage Prep mode in Gridshare.
Source document: https://documents.lunarenergy.com/outage-watch-application-note