Most owners can’t tell, and the bill is the last to say so. See every panel, and what each one is costing you.
Built for you
Not SunPower. Not an installer.
Your data
We never sell it. Export it anytime.
30-day money-back
Not for you? Full refund.
A real person
Email me. You’ll get a human.
None of these announce themselves. All of them show up on the bill.
One small plug-and-play monitor, every single panel.
Measured on clear days, projected across the year.
What’s working today, and what’s next. Tell me which you need.
Working today
Every panel, every 15 minutes.
What shade costs, by roof face.
How fast your panels are fading.
Both read your own gateway, on your own network.
Plug-and-play. Your mother-in-law could install.
The whole thing takes about 5 minutes to connect, and 15 minutes to see data.
Not sure which box you have? Email me — tony@watthacker.com
Straight answers — especially the ones a burned SunPower owner deserves.
Yes, if you have a SunPower PVS6 or an Enphase IQ Gateway (also sold as an Envoy). Both sit near your electrical panel — the Enphase one is often inside a grey outdoor box.


Still not sure? Email a photo to tony@watthacker.com and I’ll tell you.
Something else? Here’s where we stand on SolarEdge, APsystems, and others — and you can ask us to support yours.
Still wondering something? Email me — or poke around the live demo.
30 days to change your mind — we refund your whole first order.
The monitor. Free plan.
$50 monitor
$0 /yr service
plus shipping
The monitor. Full analysis.
Pay once. Never again.
Free monitor
$199 service, for life
Free shipping
See your whole system live in 15 minutes.
30-day money-back guarantee.