ClaroWatt exists because the US residential solar market had a specific, persistent problem — and the tools to fix it properly didn't exist. We built them.
ClaroWatt is a North American manufacturer of solar monitoring hardware. We design, build, and ship precision measurement devices for residential grid-tie solar — with an emphasis on the problems that matter most to the US DIY installer and professional.
The biggest of those problems: every affordable grid-tie inverter on the market ships with a single-phase limiter meter that simply doesn't work correctly on the split-phase 120/240V service that every US home runs. ClaroWatt fixes that at the hardware level.
Beyond the meter, we're building an ecosystem — the ClaroWatt Ecosystem Network connects every device automatically, Home Assistant native integration means zero configuration, and Sunny is an AI assistant that knows your system and can answer any solar question with your actual live data.
Every measurement someone makes a decision on. We take that seriously at the hardware level, not just in the spec sheet.
ClaroWatt Ecosystem Network, open protocols, Home Assistant native. Your data stays on your LAN. No cloud, no subscription.
We build for the installer who knows what they're doing. No hand-holding that isn't asked for, no unnecessary complexity.
Split-phase 120/240V is the baseline, not an afterthought. Every ClaroWatt product is designed around the US residential standard.
Single-phase measurement on split-phase service is a wrong answer dressed as a right one. We don't ship products that give wrong answers.
Your monitoring shouldn't go offline when your internet does. The ClaroWatt Ecosystem Network means ClaroWatt works whether your ISP cooperates or not.
Every ClaroWatt device connects to every other ClaroWatt device automatically. No re-pairing, no IP addresses, no "which network am I on."
ClaroWatt is built for the dealer and installer network. Professionals who put their name on an install deserve hardware they can trust and stand behind.
We don't announce timelines we can't hit. When we say a product is available, it ships from stock, assembled and tested.
Get in touch — whether you have a technical question, want to become a dealer, or you're ready to put ClaroWatt in your next install.