Municipal and public-sector fleets follow the same logic with a public-records twist; see our page for cities, counties and school boards if that is your fleet.
What we answer
Fleet owners, lessors and lenders who acquired or inherited a residential solar portfolio ask one question first: what is the reserve number. OwlWatt reads each system's actual production from its own monitoring platform and compares it, site by site, against the guarantee or estimate written into that site's contract and a weather-normalized expected value. The result is a status per site (compliant, at risk, in breach, or data gap) and a dollar exposure computed from the contract's own remedy formula, not a formula we invented.
A reserve set on installer estimates is a reserve set on the number the installer wanted to sell. Reconciling actual production against each contract's own remedy formula puts the reserve on measurement instead.
Per-site reconciliation
Actual kWh vs. the contractual guarantee vs. weather-normalized expected production, with a status flag and a dollar exposure per site.
Cohort extrapolation
Aggregate exposure across the sample, stratified by state, equipment and vintage, extrapolated to the full fleet with confidence intervals.
An O&M yardstick
Vendors diagnose faults; they don't reconcile against your contract terms or your weather clause. You can't audit your vendor with your vendor's data. This is the independent baseline.
Published, version-stamped methodology
Reproducible from your own Enlighten data. Pick 25 sites and we walk any discrepancy with you.
Sized as a worked example
Worked examples with stated assumptions, not a conclusion about any specific fleet. The snapshot tells you your own numbers.
The snapshot: 30 days, 500 systems
Scope and access
You point us at 500 systems: site ID, address, PTO date, monitoring platform, contract ID. You create and hold your own Enphase API developer app; OwlWatt operates as your technical contractor on your credentials under the Enphase API License Agreement. We never receive your Enlighten login.
Reconciliation
Each site's actual production is compared against its contract's stated guarantee and a weather-normalized expected value. Contract terms are extracted with clause-and-page provenance so the number traces back to your own document.
The deliverable
A per-site reconciliation for the 500 with a status flag and dollar exposure; a cohort report extrapolated to the full fleet with confidence intervals and a ranked top-50 remediation list; a methodology appendix; and a one-hour readout.
The equipment kept measuring after the company that sold it stopped answering the phone. The production record is intact in Enlighten; nobody has reconciled it against the contract since the installer folded. Inherited systems come with promises whose value nobody has measured. Measured, they are a number you can reserve against, price, or defend.
Four conditions we hold on ourselves
- Fixed fee, fixed scope, fixed date. A verifier paid on outcome isn't a verifier. Never contingency, success fees, or a share of a settlement or recovery.
- No asserted conclusions about your fleet. Everything above is a worked example with stated assumptions. We tell you your exposure after we measure it, not before. What you do with the number, reserve, remediate, or settle, is yours.
- No partnership or referral revenue from any party to a guarantee dispute. That includes O&M vendors and any acquirer bidding on the same portfolio. OwlWatt takes no side and holds no financial relationship with any installer or O&M vendor.
- Sponsored access, not resale, for lessees. When an engagement covers lessees, every lessee in scope gets OwlWatt's own read-only view of their site's pinned number, delivered directly by OwlWatt. You do not brand, gate, forward or edit that view. That symmetry, the same number a homeowner would get buying OwlWatt directly, is why the report is credible to an auditor, a regulator, or the lessee.
Data source, today
Enphase is the only live data source. String-inverter platforms including SolarEdge are on our roadmap and not live; we would rather say that plainly than sell you an engagement we cannot run on your fleet's actual equipment mix. The equipment's own monitoring record, corroborated against your fleet's Enlighten Manager view, is the source of record; per-site forensic hardware is available for individually contested sites but is not part of the standard fleet engagement.
Pricing
Fixed fee. Scoped on a call, not published here.
The 500-system exposure snapshot is priced and scoped after a short conversation about your data access and contract set. Fixed fee, quoted before any work starts. Recurring verification and annual portfolio certification are available after a first snapshot, quoted the same way.
Honest limits
- We do not determine breach. We measure and document; whether a gap constitutes a breach is a question for your counsel. OwlWatt provides information and documentation, not legal advice. For advice on your specific situation, consult a licensed attorney.
- We do not recover money or contact lessees' installers. The report is the reserve number, the remediation list, and the paper trail.
- Access can be revoked. You hold the Enphase credentials, and Enphase can suspend API access at any time. The methodology appendix states this plainly.
- Enphase only, today. SolarEdge and other platforms are roadmap, not live.
Questions fleet owners ask first
Isn't this what our O&M vendor already does?
Vendors diagnose faults, not contract compliance. You can't audit your vendor with your vendor's data. OwlWatt is the independent yardstick.
What data do you need from us?
A site list, read-only fleet-level Enphase API access on an app you create and own, and the lease/PPA documents for the sample, plus an NDA and DPA. Billing status is optional.
Who holds the Enphase API credentials?
You do. You create and hold your own developer app; OwlWatt operates as your technical contractor on your credentials. We never receive your Enlighten login.
Do our lessees find out about this?
Every lessee in scope gets OwlWatt's own read-only view of their site's number, delivered directly by OwlWatt, never branded or edited by you. That symmetry is what makes the report credible.
Is this a legal opinion on our exposure?
No. We measure and document; whether a gap is a breach is a question for your counsel. OwlWatt provides information and documentation, not legal advice.
OwlWatt measures and documents production against contract terms. It does not determine breach, recover money, or provide legal advice.
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