Your solar guarantee is quietly expiring.
Every month you don't monitor, you lose leverage. OwlWatt tracks your system against your contract — so when something's wrong, you have the data to prove it.
Start your free auditFree 30-day trial. No credit card. Cancel anytime.
The clock is running on your guarantee
Production guarantees in installer contracts have fixed measurement and notification windows. If your system underperforms quietly and you miss the window, your right to claim under that clause typically ends.
Most homeowners never check. Their installer's app shows green, monthly bills look roughly right, and the panels keep producing something. By the time a degraded inverter or shaded panel is noticed, the cumulative shortfall is real money — and depending on the contract language, the window to file may have closed.
OwlWatt measures every day against an independent model, so a shortfall is documented in the same data window your contract cares about — not three years later when you try to reconstruct it.
The math is simple
If your panels underperform their contracted output by even 8% — and most underperform more than that by year five — the lifetime shortfall is worth more than what you’ll ever pay OwlWatt.
OwlWatt monitoring
Typical 8% lifetime shortfall
Most installer contracts include a production guarantee in the fine print. Almost no one enforces them, because almost no one has the documentation a claim requires. That’s what OwlWatt produces.
See how your system measures upWhat's going wrong
Your installer's app won't tell you this.
Installer monitoring shows your panels are producing. It does not compare that production against what your contract guarantees.
Claim windows close quietly
Production guarantees have specific measurement periods. Without continuous monitoring, a shortfall passes unnoticed until the window has closed.
The math is complex
Panel degradation, weather variability, shading changes, contractual exclusions — accurately measuring a shortfall requires calculations most homeowners can't perform.
Equipment fails silently
A single failed microinverter can go undetected for months because the remaining panels mask the production loss. That lost energy adds up.
You're on the installer's timeline
Without independent data, you're relying on the party that issued your guarantee to tell you whether your guarantee is being met.
How OwlWatt works
Independent monitoring in three steps.
No hardware to install. No electrician required. Connect your existing inverter and OwlWatt starts tracking immediately.
Connect your inverter
Link your Enphase account. OwlWatt pulls panel-level production data automatically, every 15 minutes.
Upload your contract
We extract the guarantee terms — kWh targets, measurement windows, degradation schedules, exclusions — and build your audit baseline.
Get alerted, build your claim
OwlWatt continuously compares actual vs. guaranteed production. If a shortfall develops, you get the documentation to act on it.
Transparent pricing
One plan. Everything included. No upsells.
Free trial
- Full panel-level monitoring
- Contract audit baseline
- Production vs. guarantee comparison
- No credit card required
OwlWatt Pro
- Everything in the free trial
- Continuous shortfall alerts
- Claim-ready documentation
- Weather-normalized analysis
- Email + in-app notifications
Learn more
Resources for solar homeowners
Is your solar system underperforming?
How to tell if your panels aren't meeting their rated output — and what to do about it.
Understanding production guarantees
What your installer actually promised, how measurement windows work, and what triggers a valid claim.
What happens if your installer goes bankrupt?
Your guarantee doesn't disappear — but you need documentation to enforce it. Here's how.
Solar bill verification
How to cross-check your utility bills against your solar production to catch billing errors.
Don't let your guarantee expire unused.
Every day without independent monitoring is a day your claim window gets smaller. Start your free audit now.
Start your free auditFree 30-day trial. No credit card. Cancel anytime.