Home & Garden · Storage and DIY planning
How to review last year’s utility spikes after holidays
Compare actual bills and usage periods before explaining a holiday utility spike or choosing a home energy improvement.
A look at last year’s utility bills is a comparison of the bills you already have. Write which months were higher. Do not invent why, and do not promise this year will be lower. An EnergyGuide yearly cost on an appliance is an estimate, not those bills. The breaker panel stays closed.
Step 1: Use the bills in front of you
- Open last winter’s bills and this winter’s, if you have them, from the utility account you already use.
- Write the months and the totals that are printed. Do not fill a missing month from memory.
- Do not download a “bill analyzer” from a search ad. Do not type your utility password into a site you reached from an ad.
A house walk that does not promise savings is in a New Year energy look. Light watts, if a package printed them, are not the bill: light energy.
Step 2: Notes you can remember, not a cause you invent
If you know the porch lights ran all night, or a heater sat on a smart plug, write that as a memory. Do not multiply hours by a price. Do not assign a dollar of the spike to one lamp. A blank stays blank.
Idle chargers you can still unplug are a separate tidy: phantom load. Do not unplug the fridge or a smoke alarm because a bill was high. Do not open the panel to “see the spike.” Do not flip breakers.
Step 3: The plan is habits you already allow
Next season you can turn lights off while you sleep, using one timer or one smart plug, not both. That does not come with a percent. Thermostat changes still use the booklet or the schedule you had: thermostat setbacks. Do not set a lower number because the bill was high.
Do not switch rate plans from this page. Do not give a card number to a caller who says they read your spike. Open the utility site yourself. Do not paste the password into a checker. Guest and admin passwords stay off the paper where you wrote the totals: the Wi-Fi security checklist.
Step 4: Stop when the months are written
The note might say “December higher than November, lights were on overnight, no dollar split.” That is enough. Do not add a roof inspection, an attic weigh-in, or a new meter. Ice means you do not walk the roof to explain a bill: ladder and ice.
A filter you already change does not get a new grade because of the bill: filter and vents. Alarms stay up. This page does not promise comfort and a smaller bill together. The panel stays closed.
What you should be able to point at
- Months and totals copied from bills you have. Missing months stayed blank. No ad analyzer. No password in a popup.
- Memories of lights or heaters are notes, not a dollar split. No percent. EnergyGuide was not treated as the bill.
- The fridge and the alarms stayed plugged in. The panel stayed closed. No breaker flips.
- Next year’s habit is lights off when you chose, one control, booklet temperatures only. No rate-plan switch from this page.
- No roof, no attic, no new meter. No utility password on the note. Alarms stayed up.
Example: December was higher, and they did not price the porch
They open the utility site they already use. December’s total is higher than November’s. They write both numbers. They remember the porch lights ran past bedtime. They do not multiply that by a rate. They do not install an analyzer from an ad. They do not call back a voicemail that asked for the account password. The fridge stays on. They do not open the panel. The note says they will use one timer next year and turn the lights off at bedtime. It does not say the bill will drop by a percent. The thermostat stays on the usual schedule. They do not go on the roof. The filter grade stays whatever is already in the slot. The panel stayed closed.
Compare like billing periods
Write down the meter dates, total use and any known change in occupancy or weather for each bill. Different billing lengths can make a total look larger without a change in daily use. Use the comparison to choose a question for the utility or an energy assessment; do not claim a cause from one number.
Related guides
Last updated: October 29, 2026
Last reviewed October 22, 2026. Suggest a correction
Questions readers ask
How much of the spike was the holiday lights?
This page does not say. Write the totals that are printed. A memory that lights stayed on is a note, not a dollar amount. Do not invent watts. An EnergyGuide label is an estimate, not this bill.
Can a website we found in search break the bill down if we upload it?
No. Use the utility account you already have. Do not install an analyzer from an ad. Do not type your password into a page that popped up. Do not put the password on the same note as the totals.
Should we drop the thermostat a few degrees because December was high?
No number from this page. Keep the schedule you use, or a number the booklet prints. Do not switch the heat off at the breaker. Do not promise the next bill. Do not unplug alarms or the fridge.
A caller says they can explain the spike if we read them the account password. Should we?
No. Open the utility site yourself. Do not give a password or a card number to a caller or a text. Do not paste the password into a checker. Do not install their app from a link they sent.
Should we inspect the roof or the meter to explain the month?
No. Stay off the roof. Ice means no ladder. Do not open the breaker panel or flip breakers. The bills you already have are the review. A filter you already change does not get a new grade because of the total. Alarms stay up.
Sources and methodology
Claims that depend on an outside authority are tied to the references below. Product details change. Confirm the current specification sheet before you buy or install anything.
- Consumer Guide to Home Energy Assessments — DOE (government), accessed October 29, 2026. Supports the compare like billing periods guidance; confirm product instructions and local policy separately.
Information on this site is for general educational purposes and is not professional advice.
Parent topic: Home & Garden