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We've all been tightening up our belts around the house and there is one area in our lives that is often overlooked when it comes to money savings.
I'm running one of my final classes at LBCC and it requires a class on Energy & Sustainability and part of this class is to do an energy audit of a home, business etc.

With access to thermal imagers, watt meters and the like, the plan is to find out where your energy voids are. What's sucking you down. The process is to bring college aged kids (not seasoned adults like myself) into a position to actually think critically about money and where it's going, how to save it etc. LED lighting, doors, windows, insulation; the good stuff. Could be home or office, does not matter. Why not make a personal gain from the class I'm paying for... right?

I went through the house and found out that the insulation is good via thermal camera, I had a 2* difference in wall temps from a 68* inside and a 80* exterior. That's good.

Example is this image of my NW corner of the living room. There is a few degrees difference in the corner, not noticeable to the touch in where insulation starts and stops.
Living Room North West Corner.jpg


This thermal makes it look like I'm oozing heat from the wall which isn't the case. Further inspection showed a 3* difference between a 65* room and a 70* south facing wall when it was 80* outside.
Master Bedroom South East Corner 2.jpg

Since I run numbers at home and work, enjoy putting data into spreadsheets I compiled the data I needed for this audit of my house into an excel file.


My original thought process was to removed my inefficient furnace and replace it with a higher efficiency unit. This turns out is not going to pay off unless I'm there for 30 years. I was sure before the audit that my savings would have been greater. Turns out, mathematically I would save around $165/year for the extra efficiency. Doesn't pan out for me.

Screen Shot 2020-05-13 at 10.39.43 AM.png


So I turned to my power consumption. While I couldn't get a real baseline number for my power rate, I did. some fudging on the numbers so the calculated rate would be similar to what I actually pay. Not hard, math guys & gals.

Looking at usage, larger power units that are on constantly is where the focus was. Right now the dryer is on, a load of laundry was just washed but those don't count as they are not things in the house that are on all the time.

Screen Shot 2020-05-13 at 10.39.32 AM.png

Last summer I installed two mini-split systems a 36K and a 9.5K unit. I estimated a 25% duty on the larger unit and 10% on the smaller. They don't draw that much so I had to find a number that sat right with the actual power consumption during the summer months.

I think after doing this audit our home is in really good shape. I cannot find places for improvement that would actually benefit our home aside from running solar but a few years back I did that math and our average power bill now being $85/month to $120 month. Since we use an average of 900KWH at the house per year, it would not be beneficial even after tax credits. 20 years down the road if the panels lasted that long we would see a return on our investment.




How about you? Are you finding ways to tighten your household budget with power savings? Screen Shot 2020-05-13 at 10.39.43 AM.png
 
Short answer: no. The local public utility district has been offering free home/business energy audits for decades. Have had it done twice.

After the first time, we added insulation to the attic, insulated the floor, replaced the single pane aluminum windows with thermopane vinyl windows, and the wood exterior doors with insulated metal doors.

Before the second audit, I used the spray-in foam at every attic and crawl space penetration for wires and pipes. Also went around the exterior of the house applying silicon caulking around bird blocks, exterior plug-ins, etc. The biggest job was jacking up all the posts under the house to lay out a mylar vapor barrier, and taping the edges. Wrapped the copper water pipes at the same time.

After the second energy audit, we had a contractor replace the ceiling radiant heat system with a heat pump and programmable thermostats. And since then the water heater and all major appliances have been replaced with more energy efficient models.

Our house was built in early 1974, before builders started employing energy saving practices in a major way. All electric home, as there is no natural gas service in our neighborhood.
 
Don't mess with thermostats. Set it and leave it alone. Keep it 68 in the winter and 75 in the summer.

Pay attention to how much the stove gets used, how often the clothes dryer is ran and again the heating/cooling system.

LED lighting is quickly becoming the norm and incans/CFLs are almost phased out.

That's all I can think of. Oh, and turn off the lights and stuff when you leave. :D
 
Don't mess with thermostats. Set it and leave it alone. Keep it 68 in the winter and 75 in the summer.

Pay attention to how much the stove gets used, how often the clothes dryer is ran and again the heating/cooling system.

LED lighting is quickly becoming the norm and incans/CFLs are almost phased out.

- we have the standard settings for thermostats, and the alternate 'away from home for a few days' setting
- if it's not raining, clothes dry on the outside line
- all lights in the house changed to LED's, and most of the lights in the garage as well. Six fixtures to go.
 
Saving money in general is neat, but when I read in the OP "teach college age kids how to save money" - that right there tells me that energy savings is probably the absolute last thing relevant to their money savings need.

Lesson #1 - #50 should be, "don't buy crap you don't need."

The other big lesson would be how to take advantage of credit cards - if you aren't getting at least 2%-5% back on practically every purchase during the year, that's money left on the table.
 
Don't mess with thermostats. Set it and leave it alone. Keep it 68 in the winter and 75 in the summer.

Pay attention to how much the stove gets used, how often the clothes dryer is ran and again the heating/cooling system.

LED lighting is quickly becoming the norm and incans/CFLs are almost phased out.

That's all I can think of. Oh, and turn off the lights and stuff when you leave. :D
This is true.
We have our mini splits set to 68° in summer on AC and 68° on heating in the winter. The winter we run the furnace at 70° during the day and 68° at night. it's a great balance Where one works to heat the other maintains.

@Dungannon thats some good work there. Our house is '68 but rennonvated in 2013 for the most part. I'm glad it was. Saved me a little time now that we live here.
 
My house is old, no insulation in the walls, and leaky AF. My wife keeps the thermostat at 73°.
What will save me the most is to reprogram the thermostat for a wider temperature hysteresis, to eliminate all that short-cycling.
 

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