Complete Guide to Living Alone: Average Utility Costs and Money-Saving Tips

How Much Do Utility Bills Cost When Living Alone Per Month?

For those living alone in rental apartments, monthly utilities (electricity, gas, and water combined) typically amount to around ¥10,000–¥15,000. According to the Ministry of Internal Affairs and Communications' Household Survey (2023), average utilities for single-person households ranged around ¥11,000–¥13,000 per month. The breakdown is as follows:

• •Electricity: approximately ¥5,000–¥7,000
• •Gas: approximately ¥2,500–¥4,000 (for city gas users)
• •Water: approximately ¥2,000–¥3,000 (converted to monthly, since most bills are issued bimonthly)

However, this varies significantly depending on the region, age of the building, equipment, and lifestyle habits. In areas with propane gas (LPG), gas costs can be 1.5–2 times higher than city gas, which is not uncommon. When choosing a rental property, always check the type of gas available.

Summer and Winter: Watch Out for Seasonal Electricity Bill Fluctuations

Electricity bills fluctuate significantly by season. Particular caution is needed during summer (July–September) and winter (December–February).

Summer Electricity Bills During summer when air conditioning usage increases, electricity bills can become 1.5–2 times higher than in spring and fall. It's said that raising the thermostat by just 1°C can reduce power consumption by about 10%, so using **28°C as the standard setting** while combining it with a fan is effective.

Winter Electricity Bills Winter also sees spikes in electricity bills due to heating appliances like space heaters, electric blankets, and kotatsu. For air conditioning heating, aim for a setting of around **20°C**, and circulating the air with a circulation fan increases efficiency. Additionally, electric heaters consume high amounts of power, so avoiding long-term use is wise.

Seasonal Fluctuations in Gas Bills Winter sees increased shower and hot water usage, which also raises gas bills. Simply shortening your shower time by 1 minute can save approximately ¥100–¥200 per month.

Saving Money with Bundled Electricity and Gas Plans

Due to electricity and gas deregulation, many providers now offer "bundled plans" where you can contract electricity and gas together. By switching to bundled plans offered by major power companies, new energy providers, or gas companies, you can receive discounts of approximately ¥500–¥2,000 per month in some cases.

The merits of bundled contracts extend beyond discounts; unified billing also makes account management easier. However, the following points require attention:

• •Propane gas is often excluded from bundled plan eligibility
• •Some plans have contract term restrictions or early termination fees
• •If electricity and gas usage is low, standalone budget plans may be cheaper than bundled discounts

We recommend comparing multiple providers' simulations based on your current usage before switching.

Electricity, Gas, and Water Savings You Can Practice in Rental Apartments

Large-scale renovations are not possible in rental apartments, but you can achieve significant savings through adjustments to daily habits and small tools.

Electricity-Saving Tips

• •Cut standby power: Unplug unused appliances from outlets or use power-saving strips. Standby power is said to account for approximately 5–6% of annual electricity bills.
• •Use LED lighting: If incandescent bulbs are used upon move-in, replacing them with LED bulbs can reduce power consumption by approximately 80%. Switching back at move-out poses no issues with restoration to original condition.
• •Refrigerator placement and settings: Place the refrigerator with proper spacing from the wall (5–10 cm on the sides and back), and avoid overfilling it. Set the temperature to "medium" as standard.
• •Batch laundry: Running the washing machine multiple times in small loads is less efficient than washing a full load once. This saves on both electricity and water.

Gas-Saving Tips

• •Take consecutive baths: If the bath is filled once, bathing without gaps between people reduces the number of times you need to reheat the water. For those living alone, increasing days when you shower instead helps reduce costs.
• •Use a lid while cooking: Simply using a lid improves thermal efficiency, and some estimates suggest it can reduce gas costs by about 30%.
• •Use water-saving mode on your shower: Recent water heaters often come equipped with a water-saving mode. Check what functions your water heater has when you move in.

Water-Saving Tips

• •Replace your showerhead: Replacing it with a commercially available water-saving showerhead (¥1,000–¥5,000) can reduce water flow by 30–50%. Installation requires no tools—just unscrew the old one. You can revert it before move-out.
• •Use filling and rinsing for dishwashing: Rinsing in water collected in a basin is more water-efficient than rinsing under running water.

Switching to a New Energy Provider: Procedures for Renters

Many people wonder, "Can I switch to a new energy provider if I'm renting?" The answer is: In rental apartments, you're generally free to switch energy providers. Since electricity is an individual contract, permission from your landlord or property management company is not required.

Steps to Switch

1. Confirm your "Customer Number (Supply Point Number)" from your current electricity bill
2. Use each company's rate simulator, input your usage (kWh), and compare
3. Apply through the new energy provider's website or by phone
4. No installation work needed, no power outages—switching typically occurs within 1–2 months

Points to Note

• •Low-voltage bulk-purchased apartment buildings: In cases where the entire building purchases electricity in bulk, individual residents cannot switch. Confirm whether the building is a low-voltage bulk-purchased building before viewing and signing a contract.
• •Some new energy providers have withdrawn or raised rates, so it's important to choose an established company.
• •Plans with generous point rewards or benefits should be evaluated only after comparing actual electricity rates.

Summary: Keep Utilities Low and Enjoy Comfortable Solo Living

With awareness and minor adjustments, solo living utilities can be reduced by approximately ¥2,000–¥5,000 per month. First, understand your current usage, and then build up small daily savings habits.

When choosing a rental property, confirming the type of gas (city gas or propane), insulation quality, and the number and direction of windows greatly impacts your utilities after move-in. Even if the rent is low, a property with high utility bills can end up costing more overall. When selecting a property, we recommend comparing total running costs, not just the rent.