WattHacker

Content rating
Everyone
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Content rating
Everyone
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About this app

Is your solar still working? Most owners can't tell — and the bill is the last to say so.

WattHacker watches every panel on your roof and tells you, in plain words and in dollars, when something is wrong.

WORKING, OR NOT — FIRST THING ON SCREEN
• Your system's status the moment you open the app
• What your panels are making right now, and how today compares
• Your home use, grid flow, and battery too, if your system has them

EVERY PANEL, NOT JUST THE TOTAL
• See each panel individually, updated through the day
• Spot the one that's running short, before it shows up on your bill
• What shade costs you, measured roof face by roof face

YOUR BATTERY, TOO
• Have a Tesla Powerwall? Connect it (read only) and it shows beside your panels
• How full it is right now, and how long it will last
• What it stored and what it used, day by day

WE WATCH IT, SO YOU DON'T HAVE TO
• A panel drops: we tell you, within days, in dollars
• The monitor goes quiet: we notice and tell you
• Alerts come to this phone, by email, or both — your choice, per alert
• No alerts in the middle of the night

YOUR DATA IS YOURS
• We never sell it
• Export your full history as a spreadsheet anytime, on any plan
• Independent: not SunPower, not an installer, not a panel maker

WHAT YOU NEED
WattHacker works with a WattHacker monitor, a small plug-in device that reads your own solar gateway on your home network. It works with SunPower (PVS5 or PVS6) and Enphase systems. Setup takes about 15 minutes. Order a monitor at watthacker.com.

A REAL PERSON
Questions go to the founder, not a queue: tony@watthacker.com
See every panel on your roof. Get an alert when your solar stops working.
Updated on
Oct 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, App activity and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

The first WattHacker app for Android: see every panel, your home and battery, and get alerts on this phone when something stops working.
Content rating
Everyone
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App support

About the developer
Michael Willcox
tony@watthacker.com
3879 Vineyard Dr Redwood City, CA 94061-1144 United States
+1 503-853-3611