Lugarno Terra is 114 homes on 42 acres at Meridian Road and Deer Flat, averaging about 0.30 acres with plans from 1,838 to 3,532 square feet and five-bay garages. Wide roofs with attached garage planes give a lot of array area, and which side of the subdivision you are on changes the soiling.
A wide plan with a five-bay garage produces several large roof planes, and on a third-acre lot with no neighbouring two-story casting shade, those planes are good array surfaces. Arrays here therefore tend to be larger than in Kuna's tight subdivisions, and a larger array has more absolute output to lose to soiling. The garage roof plane in particular is often where the array goes, and it is also frequently the plane nobody ever looks at.
Homes on the Meridian Road boundary pick up tire wear, brake dust and exhaust particulate as an oily film, which on a panel is worse than dust: it spreads into a continuous shading layer and it is adhesive, so it holds every subsequent bit of airborne dust rather than letting rain carry it off. Rain and a hose do almost nothing to an oily film because it repels water. Interior-lot arrays face ordinary dust and canal mineral instead.
Third-acre lots plus a 1.6 acre irrigated common area mean plenty of untreated Boise-Kuna canal water in the air, and where overspray reaches an array, the mineral dries onto hot glass and bakes on. Each spot shades the cell beneath it. Where a head is responsible we identify it at no charge, because adjusting it prevents the deposit rather than requiring repeat cleaning, and on a large array that is a meaningful saving.
Panels are flooded with pure deionized water, which has no dissolved solids so it lifts soiling and dries leaving nothing behind. Nothing abrasive touches the anti-reflective coating, since abrading it permanently reduces output, and no soap is used because soap residue is adhesive and accelerates the next round of soiling. Solar panel cleaning is quoted by array size, after we assess mounting and access.
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Generally yes. A wide plan with a five-bay garage produces several large roof planes, and on a third-acre lot with no neighbouring two-story casting shade those are good array surfaces. The garage plane is often where the array goes and is rarely looked at.
Yes. Frontage arrays pick up an oily film from tire wear, brake dust and exhaust, which spreads into a continuous shading layer and is adhesive, so it holds subsequent dust. It repels water, so rain and a hose do almost nothing. Interior lots face ordinary dust.
Because an oily film repels water, so the hose beads off rather than lifting it, and hose water also leaves its own mineral spots as it dries. The film needs emulsifying and then flooding with deionized water, which dries leaving nothing behind.
Usually, by adjusting the head causing it, which we identify free of charge. Third-acre lots plus a 1.6 acre irrigated common area mean plenty of canal water in the air, and preventing the deposit beats cleaning it repeatedly on a large array.
By array size, after we assess mounting and access. Arrays here tend to be larger than in Kuna's tight subdivisions, so the number reflects that rather than a flat per-panel rate.
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