Before you trust us with anything, check us out.

WattHacker is operated by Tony Willcox, a sole proprietor in San Mateo County, California, USA. Not a shell, not a reseller, not a brand licensed from someone else — one person, in California, who is personally accountable for it. The same is stated in our Terms of Service and Privacy Policy, which name the operator and are governed by California law.

Reaching a human is the whole point: tony@watthacker.com goes to me, not to a queue.

Not long, and I’m not going to dress that up. WattHacker took its first order in July 2026 and the first monitors shipped at the end of July 2026. If you are looking for a vendor with a decade of history and a wall of reviews, that is not us yet, and no amount of web copy should convince you otherwise.

What I’d ask you to weigh instead is how little you have to risk to find out: the monitor is a one-time $50 with a 30-day money-back guarantee, there’s a live demo you can inspect without giving us anything, and the free plan costs nothing to keep. This is a small, new operation being honest about being small and new — which is exactly what SunPower wasn’t.

No SunPower or SunStrong login. No account credentials. Ever. There is nothing for you to hand over, because the monitor doesn’t use anyone’s cloud account — it reads your PVS gateway directly over your own home network, the way a printer talks to your laptop.

It also only reads. It doesn’t send commands, change settings, or update firmware on your panels, inverters, or gateway — which is why it doesn’t affect your equipment warranty. And it needs no port forwarding and no inbound access to your network: the box makes outbound connections only.

Support access, stated plainly: for troubleshooting, a unit can be put into a remote-support mode that lets me connect to the monitor itself (never your other devices). It is off by default, must be switched on per incident, and expires automatically. I’ll ask you before turning it on. Today that switch lives on my side rather than in your account settings — a self-serve toggle is work I still owe you, and I’d rather say so than imply a control you don’t have.

We never sell your data, and we never will. There is no advertising business here and no data-broker relationship — you pay us for the product, which is the entire reason we don’t have to monetize you some other way.

What we do hold: your solar production readings (system and per-panel), your account email, and your home address and coordinates — the last of those because roof layout and local weather are what make “is my system underperforming today” answerable. It’s all itemised in the Privacy Policy.

Export is never locked. Not behind a plan, not behind a cancellation flow. Every account, including the free one, can download its full stored history as a spreadsheet at any time from Reports. We deliberately removed that paywall: a company that holds your data hostage to keep you subscribed is the problem we exist because of.

Now the honest limitation. The monitor reads your panels locally, but today it sends those readings to our app to display them. So if WattHacker disappeared, the box would keep reading your system but you’d have nowhere to see it — which is why the export above matters, and why you should take it periodically rather than trusting any vendor, us included, to be there forever.

The difference from what happened with SunPower is what you’re left holding. Your panels never depended on us. Nothing we do can switch your system off, and no one who sold you those panels can switch us off either.