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Household Energy Efficiency Improvement Opportunities

10/10/2021

3 Comments

 
Wondering what you can do now to make a significant difference in reducing personal household energy consumption (and thereby lowering greenhouse gas emissions from natural gas or fossil-fired electricity)? John Jimison, Saint Luke’s Care for Creation Committee Chair, offers five cost-effective, proven means to improve home energy efficiency.  They are:
 
#1) Obtain a whole-house evaluation by a professional energy contractor – This evaluation by a professional identifies leaks of heated (or cooled) air, walls and roofs with little or no insulation, and can advise on the full range of potential mitigation measures and their costs.  Weather-stripping and crack sealing is a low-cost, high-payback mitigation measure that is guided by such evaluations.  Increased insulation is possible where needed and is affordable relative to the otherwise wasted energy in most situations.  Replacement of windows can be effective in saving energy, but is a major investment; storm-window installation is somewhat less effective but typically much less expensive.  You can find a certified contractor at www.resnet.us.   

#2) Upgrade your HVAC System – The heating, ventilation and cooling system in your house is likely your single largest energy user, and may also be the least efficient.  .  (See www.dmme.virginia.gov/de/LinkDocuments/HandbookHeatingCooling.pdf). Today’s state-of-the-art systems are dramatically more efficient than historic ones, offering a reasonable payback through energy savings on what is admittedly a major investment, but is a no-brainer if the old system breaks down.  The current generation of high-efficiency air-source electric heat-pumps, ground-source heat-pumps, and high-efficiency gas furnaces all operate on a fraction of the input energy their 20-year-old models did. 

#3) Upgrade your water heater – The second largest energy consumer in a typical house, water heaters typically use energy around the clock to provide hot water needed for mere minutes per day.  State of the art heat-pump water heaters or tankless water heaters, while more expensive than storage-tank water heaters, typically save their additional cost in a fraction of their working lives by lowered energy bills.   Adding outer insulation to an existing water heater may be possible and beneficial if it is not ready for replacement. .  
(www.dmme.virginia.gov/de/LinkDocuments/HandbookHeatingCooling.pdf) 

#4) Upgrade your home lighting – LED light bulbs typically use one-fifth of the energy of traditional incandescent, offer a range of lighting tone, don’t shed excess heat, contain no mercury or other toxics, and are likely to last 10 times longer, after saving any incremental cost in a matter of weeks.  This is the ultimate no-brainer. See for yourself. https://www.takecontrolandsave.coop/calculators/lighting-calculator/ 

​#5) Upgrading to Energy-Star Appliances and Electronics – Take advantage of the research available on the Environmental Protection Agency website (www.energystar.gov) to learn about the energy performance of most appliances (refrigerators, dishwashers, and clothes washers and dryers are major energy users) and electronics (which typically use 12% of a home’s energy).  But don’t settle for any model with the blue Energy-Star label.  The best of the 715 or so Energy-Star dishwashers uses one-third the energy of the worst; do your own research among the appliances, TVs and other electronics before you buy. 
Good luck with your home energy efficiency project! 
 
3 Comments
travisandsonsplumbing link
1/25/2023 06:31:42 am

Water heaters are essential to our wellbeing and daily living. Although we sometimes take them for granted, water heaters allow us to wash dishes with ease, or warm up in the shower after a cold day outside.

Reply
Vineet Sharma link
8/29/2023 04:55:28 am

Thanks for sharing the informative article.

Reply
Amit link
10/13/2023 11:46:44 pm

Thanks for sharing the great contant.

Reply



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    Care for Creation Blog Team share information on variety of topics and initiatives, in an effort to educate and increase awareness of Pope Francis' encyclical, Laudato Si': On Care for Our Common Home.

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