One plan. All features.

Yes — 30 days, full access to every feature including warranty claim letter generation. No credit card needed to start; one is required only when you convert to a paid plan at the end of the trial.

Yes. Cancel from the dashboard at any point. You keep access until the end of the current billing period. Your production history is retained for 30 days after cancellation in case you change your mind, then permanently deleted.

No. The subscription is our only revenue. We do not take commissions from solar installers, equipment vendors, or anyone else in the solar industry. That independence is the whole reason a customer would trust an OwlWatt-produced warranty letter.

Optional. OwlWatt works in cloud-only mode against your existing Enphase Enlighten or SolarEdge cloud account via OAuth. For 5-second resolution and offline resilience, we ship a $59 Raspberry Pi collector. Same subscription price either way; the hardware is a one-time cost.

Our reports cite the exact model (pvlib's PVWatts implementation), the exact parameters used (your system's DC nameplate capacity, tilt, azimuth, install date), and the exact data window. The full methodology is documented at /methodology. An installer disputing OwlWatt's math is disputing PVWatts itself — the model NREL publishes and the industry uses for system design. If a dispute escalates, a consumer protection attorney in your state can use our documentation as evidence.

Today: Enphase (any IQ-series microinverter system, IQ Gateway required) and SolarEdge (any inverter with the cloud monitoring platform). String inverters from SMA, Fronius, and others are on the roadmap. If you're unsure, email [email protected] with your system specs before signing up.

Your OwlWatt account and historical data are transferable to the new homeowner if they want to continue the subscription. Otherwise, the account closes and the data is deleted on the standard 30-day schedule.