The solar array at Sandbrock Ranch Elementary, the Denton ISD campus in the Sandbrock Ranch neighborhood near Aubrey, has saved the district $100,707 in utility costs since it was installed, according to an annual utility report going to the school board Tuesday.
The report, prepared with TDIndustries for the board's 6 p.m. meeting Nov. 10, tracks three campuses with solar systems. The district lists the Sandbrock Ranch installation at $474,301 and its simple payback at 16.68 years, the shortest of the three.
The other two arrays:
| Campus | Installation | Cost avoided so far | Simple payback | |---|---|---|---| | Union Park Elementary | $565,257 | $125,251 | 19.91 years | | Sandbrock Ranch Elementary | $474,301 | $100,707 | 16.68 years | | Nette Shultz Elementary | $321,576 | $62,143 | 19.62 years |
District utility costs down 2%
Across all of its buildings, Denton ISD spent $11,580,984 on utilities from July 2025 through June 2026, about $236,000 less than the year before. Electricity, the largest share, rose 0.5% to $8.46 million. Water accounted for most of the savings: irrigation costs fell 28.3%, to about $372,000, and potable water, sewer and storm drainage costs fell 13.2%, to about $1.04 million.
Gas dipped 2% and waste and recycling rose 4%, to about $1.01 million.





