Depending on your usage, application, and tax professional's opinion, you will likely be able to file IRS Form 5695 for a Residential Energy Credit up to
30% of your expenditure on a SUNRNR
system purchase. The link above states, "The credits are available for systems" placed in service" at any dwelling unit, not necessarily the primary residence, between Jan 1, 2006 and Dec 31, 2016".
Your usage, especially if agribusiness-related, may qualify for a federal grant or loan like those offered by the Rural Energy for America Program (REAP) which provides financial assistance to agriculture producers and rural small businesses to save money on their energy bills, reduce America's dependence on foreign oil, support America's clean energy economy, and cut carbon pollution.