Most advice on this is a list with no order. Order is the useful part, because the cheapest changes are the ones people skip.
Start with the things that cost nothing
Thermostat schedule. A few degrees on the setpoint while nobody is home does more than most people expect, because heating and cooling are usually the largest share of a home’s electricity.
Air filter. A clogged filter makes the system run longer for the same result.
Then the things that cost a little
Sealing the obvious draughts — door sweeps, window gaps, the attic hatch. Insulation where it is thin, particularly the attic. These reduce consumption permanently rather than shifting it.
Then the things that cost real money
Appliance replacement, heat pumps, and solar. These are worth doing after the cheap items, not before — because sizing a system for a leaky house means paying for capacity you would not have needed.
How to know if any of it worked
Compare the kilowatt hours line, same month year over year. The total is a noisy signal because rates move. Usage is the number that tells you whether your changes did anything.
Questions homeowners ask
Does solar make sense before insulation?
Usually not. Reducing what a house needs first means a smaller system does the same job.
What uses the most electricity in a typical home?
For most homes it is heating and cooling by a wide margin, followed by water heating. Lighting is a much smaller share than people assume.
How long before I see a difference?
The next bill will show a usage change if the change was real. Compare kilowatt hours, not the dollar total.
Next step
Own a home in New Jersey? Book a free roof and bill review. Somebody looks at your roof and your last two bills and tells you plainly whether this makes sense for your house — including when the answer is no.
Book a free roof and bill review
Se habla español — ver la oferta en español.