Existing systems
We map the arrays already installed across your service radius — commercial rooftops and residential streets — estimate size and vintage, and note visible condition and storm exposure since install. The first 3 are free.
Free preview: 3 properties, delivered 3 business days after we confirm your territory. No card, no call.
Sec. 01 — The decision
The original EPC has been acquired or exited, inverter warranties expire around year ten, and no register of installed arrays exists — least of all for the residential systems between your commercial sites. So we build one.
See how the research worksSec. 02 — Evidence
Remote evidence is unusually good at finding arrays and bracketing their age, on a warehouse roof or a residential street, and unusually bad at diagnosing them. Both halves are in the table.
| Indicator | Where it comes from | What it settles — and what it does not |
|---|---|---|
| Array footprint and module count | Aerial imagery panel signatures, row spacing and module geometry | Gives a module count and, with an assumed wattage for the install era, a DC size band good enough to sort a 90 kW roof from a 900 kW one. The interconnection agreement has the real nameplate. |
| Residential arrays and street density | Imagery panel signatures on pitched roofs, residential PV permits, assessor year-built and owner-occupancy fields | Residential systems detect the same way but sit on pitched, dormered and shaded planes, so misses run higher and confidence is marked per property. Their value is density: a street installed in one era routes as a single visit. |
| Mounting system | Imagery shadow geometry, visible ballast blocks, rail and tilt patterns | Separates ballasted, mechanically attached, flush metal-roof, carport and ground-mount systems, which decides crew, equipment and access cost on a service call. Attachment detail and flashing condition are not visible. |
| Install vintage | PV-scoped permits, state incentive and interconnection registries, first imagery showing the array | Brackets the install year, which brackets the inverter population and the warranty position. Where no permit was indexed, imagery gives an upper bound only. |
| Inverter topology | Imagery of pad- or wall-mounted equipment, combiner placement, permit descriptions | Distinguishes a visible central or string installation from one with no equipment signature, which usually implies microinverters or optimisers. Manufacturer, model and firmware are not readable. |
| Visible array condition | Recent aerial imagery | Flags soiling, vegetation grown in since install, missing or displaced modules, debris and ponding at the array edge. It cannot see hot spots, diode failures, delamination, string outages or ground faults. |
| Storm exposure since install | NOAA severe weather reports and gridded hail swaths, filtered to dates after install | Shows whether the array has taken a 1.0 in or 1.75 in hail day, or a high-wind event, since it was built. It does not prove damage, an open claim, or a covered loss. |
| Who currently services it | Not observable | There is no public source for O&M contract status, incumbent provider or renewal date. We say so on every property rather than inferring it. |
Arrays installed since the last flight do not appear, and steep-slope, shaded or parapet-hidden systems can be missed. Your report states the imagery date per property and marks ambiguous detections.
Sec. 03 — The engagement
O&M sells on proximity and timing, so the register is ordered by both.
Every array identified, commercial or residential, with address, parcel identifier and the imagery date it was confirmed on.
Estimated module count and a DC capacity band, with the wattage assumption behind it stated openly.
Ballasted, attached, carport or ground-mount, plus visible inverter equipment and what it means for access.
The permit, registry entry or imagery sequence that brackets the install year, with date and jurisdiction cited.
Visible condition observations plus severe-weather events recorded at that parcel since the estimated install date.
Owner of record, apparent occupancy, site access notes, and the qualification questions still outstanding.
Sec. 04 — Limits
This is a prospecting instrument, deliberately not a condition assessment.
Sec. 05 — Questions
Yes, and residential is where routing density pays: permits cluster by subdivision, so one filing often marks a whole street. Detection on pitched, shaded roofs is harder, so ambiguous properties are marked.
No. Imagery shows soiling, encroaching vegetation, displaced modules and debris; underproduction, hot spots, failed diodes, ground faults and inverter faults need monitoring data, an infrared scan or a technician.
Not necessarily. Detection depends on imagery date, resolution, sun angle and obstruction, so the report states the imagery date per property and marks the detections our analyst judged ambiguous.
Where a jurisdiction indexes PV permits or the state publishes a registry, the year is cited and well supported. Otherwise we fall back to the first image showing the array, which is an upper bound only.
No. The report establishes that an array exists, roughly how big and old it is, and what the property has been through — not service demand, contract availability, budget, or consent to contact.
Further reading
The method behind this report, written out in full.
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Give us the drive-time or counties you cover and the smallest array worth a truck roll. We return 3 identified systems with size, vintage and condition notes in 3 business days, free.
3 properties · 3 business days · no card
