The 30% saving does not survive contact with real invoices
Some solar developers pay a farmer to run sheep under and around their panels instead of mowing the grass, a practice called solar grazing. In 2020, Lexie Hain, a cofounder of the American Solar Grazing Association, said solar grazing can often run 30% less than traditional landscape maintenance, a figure that has circulated in solar and farming coverage since. It does not hold up. A 2025 field study tracked real invoices at 28 solar sites that use sheep grazing and 3 that use mowing crews, from 2022 through 2024. Grazing averaged 1,119.17 dollars an acre a year, about 3.3 times the 337.50 dollars mowing averaged at the same kind of sites, not 30% less. That ratio is a calculation made for this article from those 2 study figures. The same study adds a caveat that belongs beside the number every time it runs. Costs can fall and match mowing over time, once a site signs a long term contract and keeps the same flock and fencing in place for years.
Where the higher cost of grazing goes
Part of that higher cost is buying and fencing a flock in the first place. The same study counts 507.72 dollars an acre a year in capital costs, the animals, fencing and handling equipment, spread evenly over 5 years. The remaining 611.45 dollars an acre a year, a figure calculated for this article by subtracting that capital cost from the total, covers everything else it takes to run a working flock on land it does not own, moving sheep between arrays, checking on them, and replacing losses.
The 611.45 dollar figure is a calculation made for this article, the study total grazing cost of 1,119.17 dollars an acre a year minus its own stated capital cost component of 507.72 dollars. The study states plainly that grazing costs can become comparable to mowing over time under long term contracts.
Show the numbers
| Capital costs, spread over 5 years | 507.72 |
| Other costs of grazing | 611.45 |
| Mowing with a crew instead | 337.50 |
How much land a flock needs changes by region
A Pennsylvania State University extension article, citing a Cornell University survey of graziers, puts a typical stocking rate at 3 ewes, breeding female sheep, per acre in New York and Michigan. Finicky Farm in Massachusetts runs about 1.7 ewes per acre, a figure calculated for this article from the flock and acreage the farm reports. Texas, where 6,000 sheep will soon cover 10,000 acres of dry rangeland, works out to about 0.6 sheep per acre, also calculated for this article. Wetter northeast pasture grows more grass per acre than dry Texas rangeland, so it supports more sheep. The same Cornell survey puts what a grazier, a farmer paid to graze livestock under contract, earns at 326 dollars an acre a year on average in the eastern United States, and 555 dollars an acre a year in New York.
The Pennsylvania and New York figure counts breeding ewes only, from a Pennsylvania State University extension article citing a Cornell University survey. The other 2 are calculations made for this article, from source 5, more than 250 ewes across more than 145 acres in Massachusetts, and from source 4, 6,000 sheep across 10,000 acres in Texas. The Texas figure counts the whole flock, not ewes alone, and its dry rangeland supports fewer animals per acre than wetter northeast pasture.
Show the numbers
| Pennsylvania and New York | 3 |
| Finicky Farm, Massachusetts | 1.7 |
| Texas solar fields | 0.6 |
A long term contract turns grazing into a business
Finicky Farm now grazes more than 250 ewes across 10 solar arrays covering more than 145 acres, under contracts that typically run 5 years. It expects to be managing close to 600 ewes across more than 45 megawatts of solar next year.
If we weren't competitive, we wouldn't still have the contracts.
Jesse Robertson Dubois, an owner of Finicky Farm in Massachusetts. Source 5.
In Texas, JR Howard grew his flock from 400 sheep to more than 10,000 in 3 years, and is about to put 6,000 of them onto 10,000 acres across 8 Enel solar sites with a combined generation capacity of 2.6 gigawatts.
The increasing demand for sheep grazing on solar farms is the greatest opportunity for the sheep industry in my lifetime.
JR Howard, owner of Texas Solar Sheep, a grazing contractor. Source 4.
Developers choose sheep for more than the mowing bill
Ultimately, we're a business. This is one way that we can enhance the bottom line and build sustainability into our project.
Jesse Puckett, Enel director of sustainability projects and community affairs. Source 4.
About 500 agrivoltaics projects, solar arrays that also support farming or grazing on the same land, now cover about 62,000 acres in the United States. At 1 Enel site in Minnesota, soil organic matter, a measure of soil health, rose 200% under grazing. That long term payoff, not a mowing bill, is what the 30% figure was always trying and failing to describe.