​Energy Efficiency Resources and Tips

View energy-saving tips from the experts at CenterPoint Energy that can help make a difference in the amount of energy you use and money you save. Take a few minutes and learn about steps you can take, as well as practical information and advice you can put in place to start saving today.



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Water Heating

  • Condensing hot water heaters recover heat from combustion flue gas for your domestic hot water, saving you about 10 to 15 percent in hot water energy costs. Save more with rebates available on certain models.
  • Hot water can be conserved by incorporating low-flow faucet aerators into your facility resulting in savings of 25 percent or more on your water heating costs.

Programmable Thermostats

  • Scheduling heating and cooling needs with a programmable or Wi-Fi thermostat as part of your overall building automation plan can save you energy. Set the thermostat back by 10 F when the building is unoccupied for at least eight hours during the winter to potentially save 10 percent on heating costs.

Natural Gas Energy Analysis

  • Most organizations can achieve annual energy savings of 2 to 10 percent through better energy management. Scheduling a Natural Gas Energy Analysis is a good first step in starting an energy efficiency plan for your facility.
  • About 5 percent or more of steam traps fail each year, wasting energy and money. Coordinate with CenterPoint Energy a plan for assessing steam traps as part of your overall building and steam heating system maintenance plan, to ensure your steam traps are regularly checked with a professional steam trap survey to identify any failed traps. CenterPoint Energy has rebates available for the repair or replacement of failed traps. Get details.


  • As part of your building automation system, adding boiler controls (such as cut-out and reset controls) can save you energy and money by optimizing your hot water temperature. This helps your boiler operate about 5 percent more efficiently.
  • The ventilation load on a commercial building can account for half of your heating bill. You can avoid paying for over-ventilation by installing a demand control ventilation system to automatically adjust the amount of fresh air intake based on carbon dioxide levels (occupancy) in the room. Get rebate details.
  • Modulating burners can allow for 3 percent better efficiency and lessen cycling of your boiler system during part-load seasons.
  • A natural gas hot water heating system with a condensing boiler can operate 10 percent (or more) efficiently than one with a standard efficiency or non-condensing boiler. If it’s time to replace your boiler, consider upgrading to a condensing model. Learn more about rebates available.
  • Having your boiler tuned-up at least every two years can increase boiler operating efficiency from 1 to 5 percent. Learn more about tune-up rebates.
  • Infrared and condensing units can operate 10 percent more efficiently than standard natural gas unit heaters. Learn about heating rebates.
  • Linkageless controls optimize your boiler’s combustion efficiency, saving about 3 percent on space heating costs.Save more with boiler component rebates.

Steam Traps/Steam Trap Audits

  • An audit of your facility’s industrial process steam distribution system can help increase its efficiency by identifying steam traps in need of replacement or repair. Enjoy rapid payback when you combine eligible audit funding with qualifying equipment rebates provided through our industrial rebate program.
  • In steam systems that have not been maintained for three to five years, between 15 and 30 percent of installed steam traps may have failed. This allows steam to escape into the condensate return system. Work with your steam system service provider to audit, repair and replace traps and use prescriptive steam trap rebates from CenterPoint Energy to pay for 35 percent of the cost of repair or replacements.

Foodservice Equipment

  • Many operators still refer to the convection oven as a “wind” oven. With a fan rotating the hot air around the oven cavity, it is vital to lower the cooking temperatures from the standard recipe. With lower temperatures and shorter cook times, an operator can save up to 25 percent on energy costs every time.
  • All cooking appliances benefit from being kept clean and most are very easy to maintain. When appliances run at peak efficiency, energy is maximized. For range tops, keep burner heads clean to maximize the flame and work at peak efficiency. A wavy or yellow flame is a sign the burner needs attention and you need to call an authorized service agent.
  • High efficiency dishwashers don’t just save water, they save natural gas. Dishwashers that recirculate hot water reduce the demand on the natural gas water heater and save $200 in natural gas costs and 50,000 gallons of water per year.
  • Invest in a high-efficiency fryer with faster recovery times and save energy. Better cooking efficiency and optimized idle rates can save 30 to 50 percent on the annual operational cost of a standard-efficiency fryer.
  • Consider a natural gas steamer for your kitchen and save energy. A high-efficiency steamer, including those with the ENERGY STAR® logo, can save well over half the annual appliance energy cost.
  • Make your next conveyor oven a high-efficiency natural gas unit and save! A high-efficiency conveyor oven with the Foodservice Technology Center (FSTC) cooking energy efficiency rating can save 25 percent of the annual appliance energy cost.
  • Don’t leave the high-efficiency decision for your next natural gas griddle on the back burner! A griddle with the ENERGY STAR® logo can save you 30 percent off your annual appliance energy costs. Those savings add up to the amount of hot water energy needed for a commercial kitchen to use its dishwasher for six months!
  • Lots of energy gets exhausted through your kitchen hood. A kitchen hood demand control ventilation (DCV) system will save you energy when your appliances are idling. Don’t blow those savings away! Install DCV and save approximately 30 percent of your hood system HVAC costs.
  • A natural gas booster water heater for sanitizing dishware can lower operating costs drastically and save operators well over 50 percent compared to electric booster water heaters, while reducing emissions to the environment.
  • Combi ovens diversify the kitchen’s cooking options and can help save energy. Compared to a traditional steamer, a combi oven can chop your appliance cooking cost in half. Consider a high-efficiency combi option, including those with the ENERGY STAR® logo, and potentially chop your costs by at least 30 percent.
  • Did you know 98 percent of chefs prefer cooking with natural gas? Due to excellent results and up to a 50 percent reduction in operating costs on high efficiency natural gas equipment, it’s the preferred choice of foodservice operators. Source: GFEN

Foodservice Energy Savings

  • It pays to use natural gas for your foodservice cooking operations based on the costs associated with the average foodservice kitchen. Did you know that restaurants use up to three times more energy per square foot compared to any other type of commercial facility? Source: FSTC
  • Restaurants use 3 to 5 times more energy per square foot compared to any other type of commercial facility which is equivalent to the energy used annually in 22 homes. This is why using high efficiency, natural gas foodservice equipment in your commercial kitchen can help you save significantly on your foodservice operating costs.
  • When running a commercial kitchen, ask your kitchen staff and chefs to focus on turning equipment down or off when it is not being used to save energy. Up to 50 percent off of appliance energy consumption is used when equipment is on but nothing is cooking. Posting a start-up and shutdown schedule on each appliance as a guide is a simple yet effective way to keep track of equipment energy consumption if your appliances do not have an automatic idle control to automatically reduce this wasted energy. Source: PG&E Foodservice Technology Center (FSTC)

Foodservice Learning Center

  • Take advantage of CenterPoint Energy’s complimentary Foodservice Learning Center in Minneapolis, Minn., one of only a few of its kind in the nation to test the latest energy-efficient, natural gas commercial cooking equipment. If you’re not familiar with high-efficiency natural gas foodservice equipment, you can try before you buy and compare and test the latest models.