Why is My HECO Bill So High? (And 5 Ways Renters Can Lower It)

by Mar 12, 2026

If you recently opened a Hawaiian Electric (HECO) bill and your jaw dropped, you are not alone.

Hawaii residents pay the absolute highest electricity rates in the entire country—often hovering around triple the national average. For many renters, the monthly electric bill can easily rival a car payment, turning a “budget-friendly” apartment into a financial stressor.

At HAPI, we want our residents to thrive, not just scrape by. While you cannot install rooftop solar panels on an apartment building, there are several zero-cost, highly effective strategies you can use to drastically cut your energy usage.

Before we dive into the tips, let’s find out exactly what is draining your wallet.

Find Your “Energy Vampires” 

Most tenants blame their high bill on the lights or the refrigerator. The truth is, the biggest culprits are usually old air conditioning units, electric water heaters, and high-powered gaming PCs.

Use our interactive Appliance Cost Calculator below to see exactly how much your daily habits are adding to your HECO bill:

HAPI Appliance Cost Calculator

Appliance Cost Calculator

See why your HECO bill is so high. Select the items you use daily.

Window AC Unit (Old) 8 Hrs/Day
Drag to change hours used per day.
Ceiling Fan (24/7)
~$9/mo
Electric Water Heater
~$116/mo
Gaming PC / Big Screen TV
~$26/mo
Electric Dryer (1 hr/day)
~$38/mo
Estimated Monthly Cost
$0.00
Added to your electric bill

Did the cost of running that window AC unit surprise you? Here is the ultimate 2026 playbook for bringing that number down.

5 Renter-Friendly Ways to Lower Your HECO Bill

You don’t need to be a homeowner to save energy.

1. The “AC vs. Ceiling Fan” Rule

Air conditioning is the single most expensive appliance to run in a Hawaii apartment. Running an older window AC unit for just 8 hours a day can easily add $100+ to your monthly bill.

  • The Fix: Reserve the AC for the absolute hottest days of summer. Instead, utilize your apartment’s ceiling fans. A ceiling fan running 24/7 costs less than $10 for the entire month. Remember, fans cool people, not rooms. Turn them off when you leave the apartment to save even more. If you must use the AC, set the thermostat to 78°F (25°C). Every degree you lower it below 78°F increases your energy consumption by about 8%. Additionally, routinely clean your AC filter; a clogged filter forces the motor to work harder and drain more electricity.

2. Slay the “Phantom Load”

Did you know that your electronics draw power even when they are turned off? This is called “phantom load” or “vampire power,” and it accounts for up to 10% of a typical residential electricity bill.

  • The Fix: Your biggest phantom loads are large TVs, gaming consoles (like PS5 or Xbox in “rest mode”), microwave displays, coffee makers, and phone chargers left plugged in without a phone attached. Plug your entertainment center and home office equipment into a single smart power strip. Click the whole strip off when you go to bed or leave for work. This simple habit physically cuts the connection and stops the silent energy drain instantly.

3. Master the Laundry Machine

If your HAPI community features in-unit washers and dryers, how you wash your clothes makes a massive financial difference. Heating water accounts for roughly 90% of the energy your washing machine uses.

  • The Fix: Switch your washing machine setting to Cold Water. Today’s laundry detergents are specially formulated to clean perfectly in cold water, saving you heavy heating costs. Also, only run the machine when you have a full load. Secondly, if you only have a few items, skip the electric dryer entirely. Buy an inexpensive folding drying rack and let the Hawaii trade winds dry your clothes for free! If you do use the dryer, clean the lint trap before every single load to maximize airflow and reduce drying time.

4. Play “Refrigerator Tetris”

Your refrigerator runs 24 hours a day, 365 days a year. Every time you open the door, the cold air escapes, and the compressor has to kick into overdrive to cool it back down.

  • The Fix: An empty fridge has to work much harder than a full one. Solid items (like food and water pitchers) hold cold temperatures better than empty air. If your fridge is looking bare, fill a few empty milk jugs with tap water and leave them inside. They will act as “ice blocks” and keep the fridge cold with less electricity. You should also check your door seals using the “dollar bill test”: close a dollar bill in the door and pull it out. If it slides out easily without resistance, your cold air is leaking, and you should submit a maintenance request to have the seal replaced.

5. Check Your Window Coverings

The afternoon Hawaiian sun beating through a glass window acts like a magnifying glass, turning your living room into an oven. Your AC or fans then have to work twice as hard to cool it down.

  • The Fix: Before you leave for work in the morning, close the blinds or draw the curtains on any east or west-facing windows. Keeping the direct sunlight out is the easiest, cheapest way to keep the ambient temperature of your apartment comfortable. Investing in inexpensive “blackout” or thermal curtains can block up to 33% of solar heat gain, significantly reducing the urge to blast the AC the moment you walk through the door.

Quick Reference: Expected Energy Savings

Appliance / Habit The Action to Take Monthly Potential Savings Effort Level
Window AC Switch to ceiling fans & set AC to 78°F $40 – $80+ Medium
Water Heater Wash laundry in cold water only $15 – $30 Low
Electronics Use a smart power strip to stop phantom loads $10 – $20 Low
Electric Dryer Air-dry clothes on a rack 50% of the time $15 – $25 Medium
Refrigerator Keep it full (even with water jugs) and test seals $5 – $10 Low

Frequently Asked Questions About Hawaii Utility Bills

Why are Hawaii electricity rates so much higher than the mainland?

Hawaii relies heavily on imported petroleum to generate electricity. Because oil must be shipped across the ocean to our isolated island chain, the baseline cost of production is inherently much higher than in states that rely on cheap natural gas, coal, or massive hydroelectric dams.

Is my HECO bill included in my rent at HAPI properties?

This varies by property. Some of our communities include electricity in the flat monthly rent, while others require you to open your own HECO account and pay for your specific usage. Always check your specific lease agreement or ask your community manager.

What is LIHEAP, and do I qualify?

The Low-Income Home Energy Assistance Program (LIHEAP) is a federal program that helps low-income households in Hawaii pay their electric bills. If you qualify based on your household size and income, you can receive a significant one-time credit applied directly to your HECO account once a year. Applications typically open in June.

Can my landlord legally shut off my power if I don't pay rent?

Absolutely not. This is known as a “self-help eviction,” and it is illegal under Hawaii law. A landlord cannot shut off your electricity or water to force you out, regardless of how much rent you owe.

Need Help with an Inefficient Appliance?

If you suspect your HECO bill is unusually high because an appliance is malfunctioning—such as a refrigerator that won’t stop running or a constantly dripping hot water faucet—please let us know right away!

Our maintenance team is here to ensure your apartment is running safely and efficiently.

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