How Smart Thermostats Save Energy in Apartment Buildings
The data is clear: smart thermostats reduce energy consumption, lower tenant utility bills, and improve comfort — all while helping Texas apartment communities save money. Here is what the research shows.
8%
Average Savings (ENERGY STAR)
ENERGY STAR Certified Smart Thermostats
10-23%
Heating & Cooling Savings
U.S. Department of Energy
10-15%
Average Manufacturer Savings
Independent Manufacturer Studies
50%
Vacant Unit Bill Reduction
Smart Thermostat Vacant Unit Management
Energy Savings by the Numbers
ENERGY STAR Certification Standard
To earn the ENERGY STAR label, a smart thermostat must demonstrate an average 8% energy savings on heating and cooling compared to a baseline non-programmable thermostat. This is the minimum bar — many certified models exceed this under real-world conditions.
Source: U.S. Environmental Protection Agency, ENERGY STAR Program Requirements for Connected Thermostats
U.S. Department of Energy Estimates
The DOE estimates that properly using a programmable or smart thermostat can save 10-23% on heating and cooling costs, which typically account for about 50% of a household's total energy bill. The higher end of savings occurs when the thermostat actively adjusts temperatures during away hours and sleeping periods.
Source: U.S. Department of Energy, Energy Saver Guide
Manufacturer Independent Studies
Independent studies of leading smart thermostat models found average savings of 10-12% on heating and 15% on cooling. These results were validated across thousands of homes in varied climates and usage patterns, demonstrating consistent performance in real-world conditions.
Source: Published manufacturer energy savings white papers, validated by independent researchers
Vacant Unit Management
For property managers, one of the most impactful benefits is vacant unit management. Smart thermostats can reduce electric bills in unoccupied units by up to 50% or more by automatically maintaining minimal conditioning to protect against pipe freezing or extreme heat while eliminating unnecessary energy use.
Source: Industry data on smart thermostat vacant unit performance
Why This Matters in Texas
Texas apartment residents face some of the highest cooling costs in the country. With summer temperatures regularly exceeding 100 degrees F in many Texas cities we serve, cooling represents an outsized share of tenant energy bills.
The combination of extreme Texas heat and the 15% average cooling savings from smart thermostats means the dollar impact per unit is significantly higher here than in moderate climates. A tenant paying $200/month in summer electricity could save $30 or more per month — real money that improves satisfaction and retention.
Estimated Annual Savings Per Unit
| Scenario | Annual Savings |
|---|---|
| Conservative (8% savings) | $100 - $150 |
| Moderate (12% savings) | $150 - $225 |
| Optimized (20%+ savings) | $250 - $350+ |
Based on average Texas apartment electricity costs of $1,200-$1,800/year. Actual savings depend on climate zone, unit size, insulation quality, and tenant behavior.
How Smart Thermostats Reduce Energy Usage
Smart thermostats save energy through four key mechanisms that traditional thermostats cannot provide:
Intelligent Scheduling
Smart thermostats create optimized heating and cooling schedules based on when the unit is occupied versus empty. Unlike basic programmable thermostats that most tenants never program, smart models automate this process — reducing energy waste during work hours, errands, and vacations without requiring tenant effort.
Learning Algorithms
Advanced ENERGY STAR certified smart thermostat models learn each tenant's patterns over time — when they wake up, leave for work, come home, and go to sleep. The thermostat automatically adjusts to minimize energy use during predictable away periods while ensuring comfort when the tenant returns. The system improves continuously.
Remote Access
Wi-Fi connected smart thermostats can be controlled from anywhere via smartphone app. If a tenant forgets to adjust the thermostat before a trip, they can do it remotely. Property managers can also monitor and adjust vacant units without visiting in person — a major time and energy saver for large communities.
Occupancy Sensing
Many smart thermostats include occupancy sensors or use phone geofencing to detect when a unit is empty. When no one is home, the thermostat automatically shifts to an energy-saving temperature — and resumes the comfortable setting when someone returns. This addresses the single biggest source of energy waste: cooling or heating an empty apartment.
Benefits for Tenants
Lower Monthly Bills
Tenants save an average of $100-$350 per year on electricity — money that goes back into their pockets. In Texas, where summer cooling costs are especially high, savings can be even more significant.
Better Comfort Control
Smart thermostats provide precise temperature control, Wi-Fi access from anywhere, and intuitive interfaces. Tenants can adjust their apartment temperature from bed, from work, or on vacation.
Smartphone Control
All smart thermostats include free companion apps for iOS and Android. Tenants can set schedules, monitor energy usage, and control their thermostat from anywhere with an internet connection.
Voice Assistant Integration
Compatible with popular voice assistants for hands-free temperature control. Tenants can adjust the temperature with simple voice commands.
Energy Usage Insights
Smart thermostats provide detailed energy usage reports so tenants can see exactly how much energy they are using and identify additional opportunities to save.
Benefits for Property Managers
Reduce Tenant Turnover
Tenants who save money and enjoy smart home features are more likely to renew their lease. Reduced turnover means fewer vacancy costs, less make-ready expense, and more stable occupancy.
Marketing Advantage
List your property as "smart home ready" on apartment listing sites. 72% of renters say smart thermostats are important when choosing an apartment (NMHC/Grace Hill 2024 Survey).
Increase Property Value
Smart amenities contribute to higher rents, better NOI, and increased property value. 95% of multifamily decision-makers say smart home technology is worth the investment.
Vacant Unit Cost Control
Manage vacant unit temperatures remotely — eliminating the need to manually check and adjust thermostats. Reduce vacant unit electricity costs by up to 50% while protecting against extreme temperatures.
Maintenance Insights
Some smart thermostats provide HVAC system alerts that can catch potential issues early — such as a failing compressor or clogged filter — before they become expensive emergency repairs.
Real-World Results from Texas Properties
Waco, TX — 200+ Unit Community
A 200+ unit apartment community in Waco, Texas completed smart thermostat upgrades through the utility program. The property reported 20-30% energy savings across installed units, with the highest savings observed in units where tenants previously had no programmable thermostat at all.
Sulphur Springs, TX — Multifamily Community
A multifamily property in Sulphur Springs, Texas enrolled in the utility program and saw 15-30% reductions in tenant energy bills after smart thermostat installation. Property management also noted improved tenant satisfaction scores and fewer HVAC-related maintenance calls.
Sources
- ENERGY STAR — Connected Thermostat Program Requirements (U.S. EPA)
- U.S. Department of Energy — Energy Saver: Thermostats
- Published manufacturer energy savings studies: Energy Bill Analysis Results (independent white papers)
- NMHC / Grace Hill — 2024 Renter Preferences Survey
- Texas Utility Energy Efficiency Program Documentation (Oncor, AEP Texas)
Start Saving Energy — For Free
Get ENERGY STAR smart thermostats installed in every unit at zero cost. Your tenants save money, your property value increases, and you pay nothing.