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if your initial reaction is we have tons of empty land why would we ever build solar panels over a farm?

this isn’t an either-or question. a farm owner may want to add some revenue with electricity generation. just like a hospital may want to cover their parking lot to offset costs.

at giant scale do these solar location choices optimize the absolutely best use of land for cheapest possible electricity generation? no. but at small scale it can make sense for these individual owners

https://electrek.co/2026/10/05/six-flags-has-installed-one-o...

I believe that, while a cool technological innovation, the cost of installing and maintaining these panels will be significantly higher than doing the same on open land.

The article’s biggest claim is that devoting one percent of US farmland to agrivoltaics could cover 20 percent of the country’s electricity, pointing at the Texas to Nebraska to California corridor, which is exactly where big mechanized farms are most common.

They run large equipment (combines, sprayer booms, center pivot irrigation systems[1], etc). To keep that working under panels you need tall posts, wide spans, and a layout that matches the equipment paths, which would push structural cost significantly above a ground installation. All maintenance would require a boom truck, not just a ground crew. And center pivots in particular (very common) need an entire circle cleared for the system to pivot, meaning a multi-acre span with no posts for the pivot to hit, which is simply infeasible.

That’s before accounting for pesticide spray and dust on the PVs, or the logistical burden of running PV crews through a working farm.

It’s also worth noting that the study itself was broccoli, which is hand harvested and about the best case crop for this. Even so, the broccoli took 25 extra days to mature. On a farm running multiple rotations a season that lost time has a real cost, separate from the structural costs.

This innovation has a lot more promise on smaller plots. Co-ops, market gardens, specialty crops, and the like that don’t rely on large equipment. I’d be surprised to ever see it on a large farm.

[1] https://en.wikipedia.org/wiki/Center-pivot_irrigation

> large equipment (combines, sprayer booms, center pivot irrigation systems[1], etc)

Something I've always absent-mindedly wondered about when agrivoltaics comes up is integrating a gantry/rail system of sorts for the farm equipment. It's definitely infeasible for many reasons, but it's fun to think about. Instead of equipment pulled by tractors, have the equipment ride above the field on rails, held up by the same poles the solar panels are on.

Maybe today but with the rise of automation, who knows?
Center pivots are mechanical automation. They replaced traditional hand-moved sprinkler lines and automatically sweep the entire field at a defined rate. The concept is over 100 years old and has stuck around because of how efficient it is.

Unless we intentionally replace them with less efficient automation, it’s a hard sell.

It’s really more of a physics problem than an automation problem.

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You can farm and do industrial scale solar on the same land. It works extremely well for lamb herds, shade tolerant crops like strawberries, and greenhouses. I'm extremely interested in this area and actually starting some personal projects where I live, around agri-solar that is actually farming.
any recommended reading resources or documentation of your projects? building a resource database on this field and don't personally know anyone with experience, especially being in the NE
Optimization for land area in agriculture is already a catch-22 type affair: We subsidize the planting of corn to produce ethanol -- one of the most inefficient forms of solar energy 'harvesting' possible. So going directly to electrical harvesting while retaining the ability to grow high-value crops is certainly still advantageous...

To put some numbers: ~40% of the corn grown in the US (approx. 5.4 billion bushels out of roughly 14.9 billion bushels total production) goes toward ethanol production

No sure if the reference to catch-22 was meant to be specific but this is one of my fave quotes from the book:

> His specialty was alfalfa, and he made a good thing out of not growing any. The government paid him well for every bushel of alfalfa he did not grow. The more alfalfa he did not grow, the more money the government gave him, and he spent every penny he didn't earn on new land to increase the amount of alfalfa he did not produce. Major Major's father worked without rest at not growing alfalfa. On long winter evenings he remained indoors and did not mend harness, and he sprang out of bed at the crack of noon every day just to make certain that the chores would not be done. He invested in land wisely and soon was not growing more alfalfa than any other man in the county. Neighbours sought him out for advice on all subjects, for he had made much money and was therefore wise. “As ye sow, so shall ye reap,” he counselled one and all, and everyone said “Amen.

> We subsidize the planting of corn to produce ethanol -- one of the most inefficient forms of solar energy 'harvesting' possible

You subsidize it so the farmers have capacity to swiftly increase food production in any moment.

By design it should provide the most efficient way to get that capacity, not to provide the most efficient way to get energy.

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> this isn’t an either-or question. a farm owner may want to add some revenue with electricity generation.

Also: Many plants don't want/need full sun. In fact, they adapt by varying production of a chemical called zeaxanthin throughout the day to manage the amount of energy they take in.

Partially shading crops with bifacial panels (which are semi-translucent) can be beneficial to the crops as well as producing energy.

https://www.science.org/content/article/too-much-good-thing

Initial reaction is how do you harvest? Is the farm well connected to the grid? Is the cost of making this practical just much higher than land. Land is cheap in the scheme of things here.

https://farmbuy.com/1595-florina-road-katherine-nt-0850-4368...

1% of panel cost according to Gemini.

Sure, but given that a 100 acre corn farm in Ohio would make about $80k in revenue and if you're lucky about $40k in profit

A 100 acre solar plant in Ohio would make well about $1m-$1.5m in revenue

Why would you increase the cost and complexity to try to increase your revenue from $1-1.5m to a massive $1-1.5m?

Or you could just lease the land to a solar operator for about $100k a year, with no expenses

It's a solution looking for a problem.

Don't know about the US, but where I live farmland is restrictively zoned to preserve its agricultural use. You can't just turn prime cropland into a (normal) solar power plant, but perhaps you can get away with this dual use trick.
I wonder how little farming you’d have to do if this did count. Does letting a few sheep walk around a solar farm count? Growing a few strawberry plants? If the economics from elsewhere in thread are accurate, the farming feels like it would add 0 value other than the regulatory dodge, and would therefore be minimized.
> Don't know about the US, but where I live farmland is restrictively zoned to preserve its agricultural use

So central land use planning? Rural America won't be that Commumist -- not even by law, just look at the way it votes.

Freedom means a farmer can do whatever they want with their land

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Solar plant in Ohio will likely require 50m in grid connection. If you find grid connection near the city the land there is likely more expensive and not growing corn but something more substantial.

What I'm saying - these dual-use agrivoltaics are for higher-margin crops, where land is somewhat constrained.

> Solar plant in Ohio will likely require 50m in grid connection.

there needs to be some way to harvest and transport electricity like you do corn or some other crop. Like an 18 wheeler size lipo that is charged up and delivered to a train of lipo cars and discharged. Then that train goes somewhere and connects to the grid and offloads all that electricity. Rinse/repeat. It's not as efficient as directly connecting ot the grid but maybe it's more feasible than waiting years for a grid connection.