Navigating the Energy Efficiency Journey at Cuba Schools

Since 2018, Mark Mathis, maintenance director at CUSD #3 Fulton County, has been a man on a mission. That mission: energy efficiency. It’s a worthy endeavor for its own sake, but when you look at the cost savings, the impact on the bottom line is crystal-clear.

To date, Ameren Illinois has awarded nearly $200,000 in financial incentives to support capital improvement projects throughout the district — which has dramatically reduced their monthly energy bills. And it makes you wonder: Why isn’t everyone doing this?

It all started with the district’s first lighting project in 2018. By updating their interior lighting to LEDs, CUSD #3 has achieved annual savings of more than $27,000 — savings that continue to accumulate month after month.

A rooftop HVAC unit accounts for annual cost savings of more than $7,000, while a weatherization project completed in early 2025 is estimated to save the district more than $42,000 each year. Meanwhile, a simple change in their HVAC schedule is contributing over $23,000 in annual savings — without upgrading or installing any new equipment!

“The first month after implementing the building schedule at the high school, our electric bill lowered by $1,700,” explains District Bookkeeper Jodee Mathis. “It’s incredible!

“The first month after implementing the building schedule at the High School, our electric bill was lowered by $1,700. It is incredible!"
Jodee Mathis
District Bookkeeper

Since 2018, Mark Mathis, maintenance director at CUSD #3 Fulton County, has been a man on a mission. That mission: energy efficiency. It’s a worthy endeavor for its own sake, but when you look at the cost savings, the impact on the bottom line is crystal-clear.

To date, Ameren Illinois has awarded nearly $200,000 in financial incentives to support capital improvement projects throughout the district — which has dramatically reduced their monthly energy bills. And it makes you wonder: Why isn’t everyone doing this?

It all started with the district’s first lighting project in 2018. By updating their interior lighting to LEDs, CUSD #3 has achieved annual savings of more than $27,000 — savings that continue to accumulate month after month.

A rooftop HVAC unit accounts for annual cost savings of more than $7,000, while a weatherization project completed in early 2025 is estimated to save the district more than $42,000 each year. Meanwhile, a simple change in their HVAC schedule is contributing over $23,000 in annual savings — without upgrading or installing any new equipment!

“The first month after implementing the building schedule at the High School, our electric bill was lowered by $1,700. It is incredible!"
Jodee Mathis
District Bookkeeper

“The first month after implementing the building schedule at the high school, our electric bill lowered by $1,700,” explains District Bookkeeper Jodee Mathis. “It’s incredible!

Even the smaller changes add up. New water heaters at the high school contribute an estimated $364 in annual savings, while a greenhouse heater upgrade shaves off another $469 from their annual bill. Every dollar saved can be re-invested back into their core mission: educating students.

In March 2025, the leadership of CUSD #3 Fulton County invited the public to attend a presentation at Cuba Middle-Senior High School to show off their energy-saving achievements. Mark and Jodee Mathis were beaming with pride as local stakeholders and other nearby school districts learned about the tremendous impact they have made in this small rural community. This, in turn, has inspired those districts to follow their lead in beginning their own energy efficiency journey.

Businesses of all kinds can learn how to take advantage of eligible incentives by speaking to an Energy Advisor. Call 1.866.800.0747 or click here to take the first step.

Related Posts

Click store logo to reveal coupon-eligible smart thermostats.

Product Name Retailer Product Number Retail Price Final Cost After Rebate
Rheem Performance Platinum ProTerra 40 Gal 1010059454 $1,999.00 $1,199.00
Rheem Performance Platinum ProTerra 40 Gal with Leak Detection 1010059458 $2,119.00 $1,319.00
Rheem Performance Platinum ProTerra 50 Gal 1010059453 $2,099.00 $1,299.00
Rheem Performance Platinum ProTerra 50 Gal with Leak Detection 1010059457 $2,219.00 $1,419.00
Rheem Performance Platinum ProTerra 65 Gal 1010059452 $2,449.00 $1,649.00
Rheem Performance Platinum 40 Gal 1005205483 $1,599.00 $799.00
Rheem ProTerra 65 Gal with Leak Detection 1010059456 $2,619.00 $1,819.00
Rheem Performance Platinum ProTerra 80 Gal 1010059451 $2,799.00 $1,999.00
Rheem Performance Platinum ProTerra 80 Gal and Leak Detection 1010059455 $3,019.00 $2,219.00
Rheem Performance Platinum 40 Gal Hybrid 1011847916 $1,504.00 $704.00
Rheem Performance Platinum 40 Gal Hybrid with Leak Detection 1011847864 $1,719.00 $919.00
Rheem Performance Platinum 50 Gal Hybrid 1012120494 $1,869.00 $1,069.00
Rheem ProTerra 50 Gal Hybrid with Leak Detection 1011847851 $1,819.00 $1,019.00
Rheem Performance Platinum 65 Gal Hybrid 1011847889 $1,829.00 $1,029.00
Rheem ProTerra 65 Gal Hybrid with Leak Detection 1011847838 $1,889.00 $1,089.00
Rheem Performance Platinum 80 Gal Hybrid 1012120496 $2,479.00 $1,679.00
Rheem ProTerra 80 Gal Hybrid with Leak Detection 1011847825 $2,619.00 $1,819.00

*Instant coupon is also available for the following special order models: 6768549, 6768547, 5207972, 5207970, 4842215, 1054200, 900351, 900329, 900027, 899935, 899931, 899485.

Click store logo to reveal coupon-eligible smart thermostats.

Product Name Retailer Product Number Retail Price Final Cost After Rebate
Google Nest Learning - Polished Gold 1011695219 $279.99 $154.99
Google Nest Learning - Polished Obsidian 1011695218 $279.99 $154.99
Google Nest Learning - Polished Silver 1011695216 $279.99 $154.99
Emerson Sensi Touch 2 - White 1009125071 $209.99 $84.99
Emerson Sensi Touch 2 - Black 1009125070 $209.99 $84.99
ecobee Enhanced - Black 1007427425 $189.00 $64.00
ecobe Premium w sensor 1007427424 $249.99 $124.99
Emerson Sensi Touch - Silver 1006465784 $169.99 $44.99
Honeywell T9 White 1005178090 $209.00 $84.00
Honeywell T5+ Black 1003332353 $163.93 $38.93
Honeywell Wifi 7 day Touchscreen White 1002513469 $179.00 $54.00
Emerson Sensi Touch - Black 1002364956 $169.99 $44.99
Copeland Sensi Touch - White 1003419067 $169.99 $44.99
Product Name Retail Product Number Retail Price Final Cost after Rebate
ecobee Premium w/room sensor 4951006 $249.99 $124.99
ecobee Enhanced 4951007 $189.99 $64.99
Nest Learning Thermostat Gen 4 PO 5991723 $279.99 $154.99
Nest Learning Thermostat Gen 4 PG 5991724 $279.99 $154.99
Nest Learning Thermostat Gen 4 PS 5991725 $279.99 $154.99
Emerson Black 831393 $169.99 $44.99
Honeywell Home Silver 831392 $179.99 $54.99
Sensi Black 4865156 $209.99 $84.99
Sensi White 5406155 $209.99 $84.99
Honeywell Home White 1290095 $209.99 $84.99
Honeywell Home X8S Black 7038072 $219.99 $94.99