My last 13 months of electrical usage, 3 bedroom 1200 sq.ft. All new windows, doors, and attic insulation. 100% entire electrical house.
Month kWh
JUN 445
MAY 329
APR 370
MAR 352
FEB 391
JAN 306
DEC 386
NOV 301
OCT 300
SEP 362
AUG 171
JUL 449
JUN 262
4424 kWh for the last 13 months = 340 kWh or about $35 monthly, my entire year is less then two of your cheaper months. The $20,000 dollars needed to go 100% solar is best left in the bank as it makes me $80 a month in interest and I still get to keep all my original money.
This is not meant to rub salt in your wounds as I am a single guy with complete control of my usage and conservation. I do not mind a 50 degree house in the winter but a 90 degree one is unacceptable, very few days in the last 2 months have been below 90F and keep my bedroom at 75F which according to my kilowatt meter is costing $18 a month.
To be fair I seldom air condition the rest of the house as I don't spend much time in it and don't see the value in keeping my sofa cool, I don't own a TV or stereo and only used the washing machine 6 times and dryer twice this year. My heavily insulated water heater is set at 95F which saves me about $30 a month, but then again don't use it wilily nilly.
I keep my refrigerator at 37F but the freezer at 10F, fresh foods store longer and frozen food about half that of being at zero or lower but seldom keep anything in there for more than 3 months anyways - I let the grocery store keep my food frozen. Long term storage goes in the $2 a month chest freezer. Turning the refrigerator's freezer up to 10F saves me about $5 a month, I have a side by side with water and ice dispenser - the most costly of all cold white boxes to operate.
I installed a combination bathroom ceiling light / vent / heater, no sense in heating the entire house to make that room just a little warmer for a quick shower. 10 cents a day vs $1 dollar a day, wire it into a 30 minute timer close the door and forget about it. In the winter a foam toilet seat brings all the creature comforts of your love seat without the rude awakening of sitting on an arctic circle.
Summer sun generally won't come into your north or south windows especially in Texas but can easily put up to 1000 watts of heat per hour into your east west ones during the hours of 10am to 4pm - 6,000 watts per square yard of windows (3'x3') per summer day, the equivalent of running a space heater for the same amount of time. A large roof overhang, awning, or insulated curtains will considerably reduce that.
A well insulated attic with natural convention via soffit to gable or soffit to ridge (not both) will vent all that 150F trapped air. Powered attic vents are not recommended as they will suck out all your expensive air conditioning.
Though most houses no longer have functional double hung windows or door transoms the cooling effect still works but must remember to close them first thing in the morning or you'll get all the evaporating dew in the house as humidity.
After having the oven on high for 6 hours my kitchen and living room went up to 85F, after 10 pm I opened the west windows and put a fan blowing out in an east window and is now 80F. it is 72 outside tonight and should get close to that inside by morning ( i still keep my bedroom closed and air conditioned).
Watch out for humidity misnomers as 90 degree air can hold much more water vapor as the same level of 70 degree air, hence the name relative humidity. Only a wet bulb psychrometer can differentiate them, by the same token in the winter a house kept at 70F with a 40-50% humidity can feel more comfortable then a dry 80F - cheaper too.
Energy conversation is a lot like a diet, you have to make it a lifestyle change for it to be effective. The first thing is to educate the household on what things cost as power consumption and not dismissing them because they are small and often forgot about.
People (women) have a mindset that if it only costs a few dollars and has a 50% clearance tag it actually costs less to buy then to leave it at the store. Same as the 1 cent an hour light bulb times 10 hours a day times 20 bulbs equals $60 a month - an exaggeration but doable.
All those cheap little items adds up at the end of a night, just as the guys (men) buying all his friends 50 cent tap beers ends up with a $100 bar tab but doesn't realize it until 2am when he has to pay the bill. Is that a good analogy?
I'm a glutton and can seldom eat out cheaper then building a meal at home even with the added cost of oven usage, if you have friends or relatives that you can tolerate for more than a few minutes show up at their door at supper time - you actually help save them from over eating. Cue the kid on feeling sick and get out of there before the dishes need washing.