With the continuing increase in the cost of electrical power from the grid, the demand for stand-alone renewable energy systems is on the rise. 
The benefit of installing solar panels on a dairy farm is that they absorb sunlight that reacts with their embedded silicon crystals, producing electricity. Solar power is free and easy to harness, reliable, and highly versatile.
Furthermore, it also presents a money-making opportunity as the surplus power can be sold back to the grid.