Affordable Energy-Saving Tips for Anyone Living in Japan

Plus where to shop for the energy-saving options.

Comfortable and ecological life with Energy Saving DIY

Energy-Saving DIY
simply means turning your house into an energy-saving specification with only minimal effort. There are many useful goods at home improvement centers that you can visit to check out some items to help you do this. This winter, switch things up by trying some energy-saving DIY options.

First, here are some basic examples on how to save energy in your own simple ways at home:

Lessen the use of your heater.

Did you know that 58% of the air coming from the heater goes out through the window? A solution for this is to apply a blackout film or sheet to your glass window, or put an airtight tape around your window. There are also curtains and blinds that are made to keep the warm temperature from the heater within the room. By doing this simple step, you can shorten the time of heater usage to save energy.

Changing your light bulbs.

It has already become common knowledge that LED light bulbs save more energy than incandescent bulbs. Just by changing your light bulb, you can save up to ¥2,430 in a year. Talk about big savings.

Choose appliances with On and Off features.

Opt for appliances that have a function that you can easily turn on and off. Using timers and power strips with switch can frequently lower your energy usage.

Why is energy saving necessary?

The reason why energy saving is a must is because if you use too much electricity, you release too much energy. Releasing too much energy is directly proportional to the volume of greenhouse gases such as CO₂ that will be emitted.

As Greta Thunberg, a 16-year-old environmental activist who is attracting attention worldwide, said if we don’t stop emitting greenhouse gases, we will take away the future of the next generations to come. It can be seen that last year’s extreme heat and heavy rain have already had a serious impact on our lives. Therefore, it is necessary to make an effort to reduce greenhouse gas emissions so that the heat from the sun will not accumulate too much on the earth’s surface.

Another important note to remember is that there is more CO2 in heating compared to cooling. This cold season, there are more opportunities to use heaters. Using excessive heating doesn’t only take a toll on your wallet, but is also unfriendly when it comes to the environment. That is why we need to devise a way to improve the thermal insulation of our houses so that warm air does not escape and therefore saves energy. With Energy Saving DIY, you can improve the thermal insulation of your home with so little effort.


Now, let's check out the Energy Saving DIY items that can be seen at your local home centers.

Super Viva Home Nagatsuda Store

The Super Viva Home Nagatsuta Store
is one of the largest in the Yokohama area, and it has a large variety in their energy-saving DIY selection. You can get advice from their professional staff at the store for professional-use goods. Energy Saving DIY products range from solar home appliances to water-saving equipment so you will definitely never run out of items to choose from!

Recommended Energy Saving DIY items at Super Viva Home Nagatsuta Store

Left: Water-saving product Mizuseikatsu Kubifuri Kitchen Shower (Water Life Swinging Kitchen Shower with hose for ¥2,780) can save 40% water. It also comes with a convenient hose that can be attached to a kitchen faucet to wash the sink.

Right: Alumi Hoon Sheet (Aluminum heat insulation sheet for ¥388) 70 x 90 mm. This sheet helps make the bath water maintain its warmth if cut into the size of a bathtub and floated. This is used as a thermal insulator.

Super Viva Home Nagatsuda Store is located at 4-6-1 Nagatsuta Minamidai, Midori District, Yokohama City, Kanagawa. You may contact them at +81-45-988-6311. They are open from 8 a.m. to 9 p.m. (Shizai-kan), 10 a.m. to 9 p.m. (Seikatsu-kan) and 9:30 a.m. to 9 p.m. on weekends and holidays, daily except January 1. To get there, you may take a 5-minute bus ride from Nagatsuta Station taking City Bus heading to Wakabadaichuo and a 5-minute walk from Koenmae Bus Stop.

DCM Homac Seya Store

DCM Homac Seya Store
is the only two-story building store in the Kanto area where each floor is widely spacious. Wood and metal processing can be done in the workshop where specialists are also stationed. Energy Saving DIY products are abundant such as heat shield sheets and there are over 50 types of other DIY items to choose from.

Recommended Energy Saving DIY items at DCM Homac Seya Store

Left: Sukimakaze Stopper (Draft stopper for ¥398) is a cold insulation product that only cuts according to the door and does not let the air from the corridor enter the room.

Right: Madogiwa Attaka Board (Hot Board at the Window for ¥980). Designs such as sheep patterns are available and the brick pattern is reversible.

DCM Homac Seya Store is located at  25-1 Kitashin, Seya District, Yokohama City, Kanagawa. You may contact them at +81-45-300-6330. They are open from 9:30 a.m. to 8 p.m., daily except January 1. To get there, take a
20-minute walk from Sotetsu Honsen Seya Station South Exit and Odakyu-Enoshimasen Sakuragaoka Station East Exit.


Tokyu Hands Yokohama Store

Tokyu Hands Yokohama Store
is conveniently located right next to Yokohama Station and has a wide variety of items in their store. There are also plenty of specialized DIY goods such as parts and materials. The store also has a lot of high-design Energy Saving DIY products that allow you to the process of enjoy energy-saving fashionably convenient.

Recommended Energy Saving DIY items at Tokyu Hands Yokohama Store

Left: Amane showerhead (¥7,380) can save up to 35% of water while being about twice as high as a conventional (non-water-saving) showerhead. The cute color is the original version of Tokyu Hands.

Right: Kokinou Curtain (high-performance curtain) (width 100 x length 178cm) (¥3,900) has a thermal insulation rate of about 54%. It improves heating efficiency because  as a heat insulating product, it does not let the air from outside enter the room and does not miss the warm air.

Tokyu Hands Yokohama Store is located at Yokohama More’s 5-7F, 1-3-1 Minamisaiwai, Nishi District, Yokohama City, Kanagawa. You may contact them at +81-45-320-0109. They are open from 10 a.m. to 9 p.m., daily. They are close to Yokohama Station West Exit

Beaver Tozan Atsugi Store

Beaver Tozan Atsugi Store
is particularly well-known for their quality and variety of gardening supplies. They also have a Beaver Pro Atsugi Store for professionals next door making it the perfect place to stock up on DIY supplies.

Recommended Energy Saving DIY items at Beaver Tozan Atsugi Store

Left: CIRCULIGHT socket type (¥6,980) is an eco-lighting socket that integrates an LED light and a fan that circulates air. This can be installed simply by attaching it to a light bulb socket.

Right: Joint Type Warming Mat for One Mat of Tatami Size (¥1,280) is a product that cuts off the cold air under the floor and does not release heat from hot carpets.

Beaver Tozan Atsugi Store is located at 24-1 Toda, Atsugi City, Kanagawa. You may contact them at +81-46-228-3324. They are open from 9:30 a.m. to 8 p.m., daily. To get there, you can take a 10-minute bus ride from Odakyu Honatsugi Station taking Kanagawa Chuo Bus heading to Hiratsuka Station North Exit and a 10-minute walk from Aikawa Chugakkomae Bus Stop.

Provided by Japan Walker™, Walkerplus™, and Yokohama Walker™ (20 November 2019)

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