What Is Storm Guard / Storm Watch?

Storm Guard (Enphase) and Storm Watch (Tesla) are automatic features that prepare your battery for severe weather. When a storm is forecasted for your area, your battery will pre-charge to 100% — ensuring you have maximum backup power when you need it most.

How It Works

1. Weather Monitoring: Your battery system continuously monitors weather forecasts from national meteorological services
2. Storm Detection: When severe weather (hurricane, blizzard, severe thunderstorm) is predicted for your area
3. Auto Pre-Charge: Your battery charges to 100%, regardless of your normal backup reserve setting
4. Full Backup: You're ready for extended outages with maximum capacity

What Triggers Storm Mode?

Storm Watch/Guard typically activates for:

• Hurricanes and tropical storms
• Severe thunderstorms
• Tornado warnings
• Winter storms and blizzards
• High wind warnings

Note: Normal rain or minor weather events typically won't trigger it.

How to Enable

Tesla Powerwall:

1. Open Tesla App
2. Tap your home energy system
3. Go to Powerwall > Settings
4. Toggle Storm Watch ON

Enphase IQ Battery:

1. Open Enphase App
2. Tap Battery
3. Go to Settings
4. Toggle Storm Guard ON

What Happens During the Storm

• Your battery operates normally (discharging during outages, charging from solar)
• The 100% reserve stays active until the storm passes
• Once weather clears, your battery returns to your normal backup reserve setting
• No action needed from you — it's fully automatic

After the Storm

Your battery will:

1. Return to your normal backup reserve setting
2. Resume normal daily cycling
3. Continue protecting you with your preferred reserve level

Troubleshooting

"Storm Watch didn't activate"

• Check that it's enabled in your app
• Verify your battery is connected to WiFi (needs internet for weather data)
• Not all weather events trigger it — only severe storms

"My battery didn't charge to 100%"

• Storm Watch charges from grid + solar; if it's cloudy and you have solar-only charging enabled, it may not reach 100%
• Check your app for any error messages