Measure the soiling loss on Dakota County community solar gardens, Rosemount, MN.

Dust, pollen, salt and bird droppings are the cheapest kilowatt hours in the world to get back, and the only honest way to size the loss is to measure it before touching anything. Photograph the module surfaces at Dakota County community solar gardens from a fixed repeatable spot, record days since the last rain from a named weather source, and pull the production record for the same window at comparable irradiance. Minnesota runs the largest community solar garden program in the country AND the only state habitat scorecard for solar ground cover, so a site here can hold a public habitat score that a packet can move. The output is a soiling estimate with its uncertainty stated, never a cleaning quote.

Where

public roads and city parks, Rosemount, Dakota County, MN · Open the map

Pay

$80 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash — recorded, and readable any time at vealth.net/labor/credit/(your wallet). You see which before you claim, never after.

Proof

fixed-spot module photos + days since rain from a named source + production window at matched irradiance + soiling estimate with uncertainty

This is exactly what gets it approved. Nothing settles without it.

Level

entry

Open until

2026-12-01

Posted by

0x034F…6c89

The creator wallet. Its signature is what approves proof and settles the wage.

How this work is done

A documented method, so this packet comes out the same whoever does it.

Bring

• camera with a date stamp and a GPS phone
• soft-bristle brush on an extension pole rated for glass
• deionized or low-mineral water with a hand pump or hose
• microfiber cloths and clean buckets
• hi-vis vest and gloves
• the array's public production record for the seven days either side

Steps

1. 1. Confirm in writing that the array is ground-mount or carport, that the owner permits the cleaning, and that every module in scope is reachable from the ground. If any part needs a ladder or a roof, stop and record why.
2. 2. Photograph the module surfaces before touching anything, from a fixed spot you can return to, and record the date, the time and the days since the last measurable rain from a named weather source.
3. 3. Record the seven days of production before the cleaning from the public dashboard or the owner's meter, with the source named.
4. 4. Clean the glass with low-mineral or deionized water and a soft brush only, working from the ground. Never stand or lean on a module, never walk on a tracker, and never open, touch or switch any enclosure, connector, conduit or switch. No detergent, no solvent, no pressure washer.
5. 5. Photograph the same modules from the same fixed spot after the cleaning, with the date and time.
6. 6. Record the seven days of production after the cleaning, compute the soiling ratio from the two windows at comparable irradiance, and publish both photo sets, both windows and the ratio.

What counts as done

• Module-surface photos from a fixed, repeatable spot with GPS, date and time
• Days since the last measurable rain, with the weather source named
• The production window used and the irradiance figures it was matched against, with sources
• The soiling loss estimate with its uncertainty stated, and the reason a cleaning is or is not indicated

Proof is measured against these, not judged by taste.