Pumping, groundwater rules and why they matter for solar
The Rio Grande Water Conservation District formed Subdistrict No. 1 in 2006 to restore the valley’s declining unconfined aquifer, and it charges well users under a plan of water management approved by the State Engineer. Its fee structure has been in court in 2026, and the fees you pay depend on your subdistrict and water rights.
Solar reduces the electricity cost of pumping; it does not change your water obligations. If fallowing or reduced pumping is part of your plan, the value of a pump-offset array can drop, so we look at your multi-year pumping plans before recommending a size.
Seasonal pumps vs year-round loads
Center pivots run mostly from spring through late summer, when solar output is high, which is a good match. But net metering is typically tied to a single meter, and pivots often have their own meters. We ask your utility, usually SLV REC or Xcel, how it handles multiple meters before designing an array around a pump.
Potato storage cellars and farm shops run for more of the year and can be steadier targets for rooftop solar.
Financing in 2026
As of September 2026, USDA REAP grants are paused pending a rule rewrite; REAP guaranteed loans remain open. Rooftop solar on farm buildings is eligible, while ground-mounted systems over 50 kW have been excluded or deprioritized. Commercial solar can still qualify for the federal §48E credit if it’s placed in service by December 31, 2027, or construction began by July 4, 2026. Verify current terms with USDA and your tax advisor.
FAQ
Questions we hear
Can solar lower my center-pivot pumping costs in the San Luis Valley?
It can offset the electricity a pump uses, especially because pumping lines up with summer sun. Whether it pays depends on your rate, the meter setup and how many years you expect to keep pumping at current levels.
Does solar reduce what I owe Subdistrict No. 1?
No. Subdistrict fees relate to water use, not electricity. Solar only lowers the power cost of pumping. Check current fees directly with the Rio Grande Water Conservation District.
Is a potato cellar a good place for solar?
Often, because storage cooling and ventilation run for much of the year and the roof is usually large and unshaded. We check the structure and your bills first.
Can I get a USDA grant for a ground-mounted farm array?
Not as of September 2026. REAP grants are paused, and ground-mounted systems over 50 kW have been excluded or deprioritized. Guaranteed loans remain available, and rooftop systems on farm buildings are eligible.