Count solar panels on a roof or array from a photo — count solar panels in a array from a photo with marked results
AI Solar Panels Counter

Count solar panels on a roof or array from a photo

Works with JPG, PNG, WEBP · Free up to 20 MB, Premium 50 MB

Shoot the area from directly above in a single pass so the solar panels sit flat in frame and do not hide each other — counted detections receive dots for review. Built for surveyors, site managers, solar installers and car park operators — review and correct each photo before adding it to a CSV or PDF tally.

  • Review the photo, then count visible solar panels
  • Upload a photo and get an automatic count
  • Review the markers to catch solar panels counted twice or missed
  • Free to use · No signup required · Without watermark

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Counting solar panels from a drone or rooftop photo

Solar panels are counted by installers and asset teams from a drone survey before commissioning, to check an installed array against the design drawing, for asset records at an operations and maintenance handover, and to estimate the size of an existing rooftop system. The unit matters: a module, a string or a whole table can each be counted, and the counter counts whatever you mark.

Each module is divided into a grid of cells, and close up those cells form a repeating pattern that can be read as many small items. Mark one complete module, frame included, as the example in Similar items so the module is the unit; mark a whole table instead to count tables. Glass reflects the sky, and a sun reflection can white out several modules, so fly with the sun behind you or on a bright overcast day. Shoot as close to straight down as the site allows, since steep angles foreshorten panels and merge rows.

Row by row, check the markers and correct the tally, then add each roof face or block as a labelled row; a PDF report of the tally is available on Premium for a handover file. Vehicles in the site car park can be counted from the same pass with the vehicle counter, and anything else in the frame with the object counter, which takes a typed item name.

Array photo checks

  • One complete module or table marked as the example
  • Sun behind the camera, or bright overcast light
  • A straight-down angle wherever the site allows
  • One roof face or block per tally row

Frequently asked questions

How high should the drone or camera be?
High enough that the whole area fits in one frame, low enough that each item is still a clear shape — a few dozen pixels across is a good target. Keep the camera pointing straight down and the light even, then review every marker before using the total. Two passes only compare with each other if the height and angle match.
Does it count single modules or whole tables?
It counts whatever you mark. Mark one module and it tallies modules; mark one complete table and it tallies tables instead. Panels at a steep angle to the camera foreshorten and can merge, so shoot as close to straight down as the site allows and review every marker.
What if the photo has more than just solar panels in it?
The counter automatically looks for solar panels in your photo. Similar-looking distractors can still affect the result, so review every marker before using the total.
Can I count several photos into one total?
Yes — count each photo and add every reviewed result to the tally sheet as a labelled row. Export the tally as CSV or a PDF report, or save it to your account.
Is it free and private?
Yes. You can count, review and download a free result without an account. Downloads are free without a watermark. No signup required. Server-processed photos are encrypted in transit and removed under our Security policy.

What you can do with Object Counter

Review the main capabilities before you begin.

  • Count objects in a photo instead of tallying by hand
  • Tally coins, pills, cells, parts and beads
  • Optionally mark an example to target a specific item
  • Review counted detections with overlay markers
  • Run a bulk audit across many photos
  • Fine-tune sensitivity to ignore tiny specks

Settings reference

Available controls for Object Counter.

Upload

Single photo / Bulk auditPresets
Choose a single-photo count or a Premium bulk audit. Review every result.Options: Single photoBulk audit

Count

Included markersSliderRange: 0–1 · Default: 0.21
Starts at 21%; slide toward Show more to include weaker markers or Only strongest to hide them.
Overlay stylePresets
Choose dots, a heatmap, both or a clean preview.Options: BothDotsHeatNone
What to countText input
Enter the item to count, then press Enter or leave the field to start automatically. Review every result marker.

Advanced

Result overlayDropdown
Choose how count markers appear in the on-screen preview; the download keeps its own markers.Options: Dots + heatmapDots onlyHeatmap only

Tally

Add to tallyOne-click
Add this count to the tally sheet under the name of the object that was counted. Signed-in accounts add finished counts automatically unless that is turned off under Account settings; in bulk mode every photo also has its own Add to tally button.
LabelText input
Rename a tally row. Edits and removals wait until you choose Save changes, so you can fix several rows at once.
CountNumber input
Correct a row's count; totals, the chart and exports follow once the change is saved.
Save changesOne-click
Apply every edited or removed tally row in one step, or choose Discard changes to leave the sheet as it was.

Chart

By objectPresets
The chart is the same in every counting tool and covers the tallies of all of them. By object draws a separate line chart for each tally name, such as pipes and people. By tool draws a chart for each counting tool.Options: By objectBy tool
PeriodPresets
Choose how far back the chart looks. Days without a count appear as zero.Options: 7 days30 days90 days12 months

History

Counting setupGallery
Keep comparable counts together. A first setup is created for you, so the first count can be saved straight away.
Observed atText input
The date and time of the count, shown as a date and a time field.
NotesText input
Starts with every detected object and its count, one per line, such as Pipes - 11. Edit it before saving.
Save countOne-click
Save the count to your account history. Open a saved count later to correct it or download its source photo.
Free to use · No signup required · Without watermarkUploads are encrypted in transitRemoved under our retention policy

How Object Counter helps you get it done

Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start.

For Business

Reviewed Warehouse Cycle Counts

Use Bulk audit to run Distinct objects mode across every shelf photo in the queue, review every result, and correct the per-shelf tally before exporting a cycle count.

For E-commerce

Small-Parts Inventory for Makers & Etsy Sellers

Mark the bead, screw or component you need in the Examples setting — 1-3 examples, one per part type — then run the count. Review the matching markers for background mistakes, then add the corrected result to the tally sheet.

Education

Classroom & Lab Supply Counts

Create an AI-assisted draft of dice, counters, test tubes or lab kits, then review and correct the markers before exporting a reorder tally.

Productivity

Shareable Stock-Take Reports for Teams

Save a completed stock-take to your account, generate a branded PDF report, and share a read-only link so managers or teammates can review the count without re-uploading anything.

For Developers

Batch QC Counts for Packed Finished Goods

Run Similar items mode after marking 1-3 example units in the Examples setting — one per pack type in the shot. Review every marker and correct misses or duplicates before shipping.

Personal Use

Hobby Collection Counts for LEGO, Trading Cards & Models

Mark 1-3 example pieces in the Examples setting — one per piece type you're counting — then run the count. Review the result markers and correct the tally instead of starting a manual count from zero.

Watch each transformation land

Every photo crosses the slash untouched and comes out the other side finished.