Hachidori Denryoku Forms Partnership with 'mymizu,' an App to Find Free Water Refill Stations
Hachidori Denryoku, a 100% natural energy retail electricity provider, has announced a business alliance with mymizu, an app that helps users find free water refill stations. This partnership aims to expand climate action that anyone can easily participate in by connecting the daily act of 'refilling water' with the choice of 'switching electricity providers.'
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- 📰 Published: April 30, 2026 at 20:00
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Borderless Japan Inc. (Headquarters: Fukuoka City, Fukuoka Prefecture, Representative Director CEO: Kazunari Taguchi), which operates "Hachidori Denryoku," a 100% natural energy retail electricity business, has begun a business partnership with "mymizu," an app operated by Social Innovation Japan (Location: Shibuya-ku, Tokyo, Representative Directors: Kei Luis Robin, Mariko McTier) that allows users to find free water refill stations.
This initiative aims to expand climate action that anyone can easily participate in by connecting the daily act of "refilling water" with the choice of "switching electricity providers." Specifically, Social Innovation Japan will be registered as a donation recipient for Hachidori Denryoku's "1% for Social*" program. Additionally, they will introduce each other to their respective communities and facilitate functional and informational collaboration based on the app. This will contribute to reducing environmental impact from both plastic waste reduction and CO2 emission reduction.
*A donation system where 1% of electricity charges contributes to social good.
Special Website
Background of the Initiative
While interest in climate change is growing, many people feel uncertain about "what to do" or find the "hurdle to action high."
mymizu, with the vision of "changing the future through water refills," has been working to reduce single-use plastic bottles by visualizing free water refill locations on its app for users carrying their own reusable bottles. Currently, mymizu boasts 210,000 registered water refill spots worldwide and over 2,500 water refill partners across Japan, becoming an infrastructure that changes people's daily behavior.
Meanwhile, Hachidori Denryoku has been promoting CO2 emission reduction from homes, stores, and offices by switching to 100% natural energy electricity. Moreover, through "1% for Social," which donates 1% of electricity charges to organizations addressing social issues, it provides a "system where simply using electricity gives back to society."
A common philosophy shared by both is that "daily choices have the power to change society." This collaboration connects two actions – water refills (plastic reduction) and electricity choice (CO2 reduction) – to create a form of climate action where more people "find themselves participating" naturally.
Details of Collaboration
This partnership will be advanced in stages with the following initiatives:
- Mutual introduction and awareness expansion to customers and communities
Banners will be placed within the mymizu app, and information on switching electricity will be provided via a special website. Furthermore, Hachidori Denryoku will promote mymizu and encourage app usage through its newsletters, website, and social media, expanding the points of contact for both communities.
- Mutual promotion of water refill partners and renewable energy adoption
Information on switching electricity will be provided to mymizu water refill partner stores, and information dissemination at stores will be strengthened through the placement of stickers and flyers featuring both companies' logos.
- Collaboration as a donation recipient
Social Innovation Japan will be registered as one of the donation recipients for Hachidori Denryoku's "1% for Social" program, continuously supporting mymizu's activities through 1% of the electricity charges paid by Hachidori-san (customers).
Donation Recipient Introduction Page
Future Outlook
Going forward, initiatives targeting corporations and stores, not just individuals, will be developed. By combining the two actions of water refills and electricity choice, the aim is to increase "places where environmentally conscious choices can be made" in cities and change what is "当たり前 (normal)" for consumers. Hachidori Denryoku and mymizu will prove that small daily choices have the power to change society and spread a new form of climate action that everyone can participate in.
"Tonari no Hachidori-san" also released simultaneously
Beloved things and landscapes in daily life.
These important things, inseparable from nature, might be protected by the choice of electricity used daily. Hachidori Denryoku's YouTube channel "Tonari no Hachidori-san" visits users across Japan (known as "Hachidori-san") and asks them about the "things they cherish and want to protect and pass on to the next generation."
This time, an episode featuring Mariko McTier, co-founder of mymizu, has been released.
Ms. Mariko, who has sought to change the future through the act of refilling water. At the root of it is the desire to "protect what is precious and pass it on to the next generation."
This video presents her origin story along with a dialogue about the meaning of acting based on "what one wants to protect." Please watch the dialogue that resonates with "SAVE WHAT WE LOVE," a phrase Hachidori Denryoku has cherished.
Watch the video
◼︎About mymizu https://www.mymi
This initiative aims to expand climate action that anyone can easily participate in by connecting the daily act of "refilling water" with the choice of "switching electricity providers." Specifically, Social Innovation Japan will be registered as a donation recipient for Hachidori Denryoku's "1% for Social*" program. Additionally, they will introduce each other to their respective communities and facilitate functional and informational collaboration based on the app. This will contribute to reducing environmental impact from both plastic waste reduction and CO2 emission reduction.
*A donation system where 1% of electricity charges contributes to social good.
Special Website
Background of the Initiative
While interest in climate change is growing, many people feel uncertain about "what to do" or find the "hurdle to action high."
mymizu, with the vision of "changing the future through water refills," has been working to reduce single-use plastic bottles by visualizing free water refill locations on its app for users carrying their own reusable bottles. Currently, mymizu boasts 210,000 registered water refill spots worldwide and over 2,500 water refill partners across Japan, becoming an infrastructure that changes people's daily behavior.
Meanwhile, Hachidori Denryoku has been promoting CO2 emission reduction from homes, stores, and offices by switching to 100% natural energy electricity. Moreover, through "1% for Social," which donates 1% of electricity charges to organizations addressing social issues, it provides a "system where simply using electricity gives back to society."
A common philosophy shared by both is that "daily choices have the power to change society." This collaboration connects two actions – water refills (plastic reduction) and electricity choice (CO2 reduction) – to create a form of climate action where more people "find themselves participating" naturally.
Details of Collaboration
This partnership will be advanced in stages with the following initiatives:
- Mutual introduction and awareness expansion to customers and communities
Banners will be placed within the mymizu app, and information on switching electricity will be provided via a special website. Furthermore, Hachidori Denryoku will promote mymizu and encourage app usage through its newsletters, website, and social media, expanding the points of contact for both communities.
- Mutual promotion of water refill partners and renewable energy adoption
Information on switching electricity will be provided to mymizu water refill partner stores, and information dissemination at stores will be strengthened through the placement of stickers and flyers featuring both companies' logos.
- Collaboration as a donation recipient
Social Innovation Japan will be registered as one of the donation recipients for Hachidori Denryoku's "1% for Social" program, continuously supporting mymizu's activities through 1% of the electricity charges paid by Hachidori-san (customers).
Donation Recipient Introduction Page
Future Outlook
Going forward, initiatives targeting corporations and stores, not just individuals, will be developed. By combining the two actions of water refills and electricity choice, the aim is to increase "places where environmentally conscious choices can be made" in cities and change what is "当たり前 (normal)" for consumers. Hachidori Denryoku and mymizu will prove that small daily choices have the power to change society and spread a new form of climate action that everyone can participate in.
"Tonari no Hachidori-san" also released simultaneously
Beloved things and landscapes in daily life.
These important things, inseparable from nature, might be protected by the choice of electricity used daily. Hachidori Denryoku's YouTube channel "Tonari no Hachidori-san" visits users across Japan (known as "Hachidori-san") and asks them about the "things they cherish and want to protect and pass on to the next generation."
This time, an episode featuring Mariko McTier, co-founder of mymizu, has been released.
Ms. Mariko, who has sought to change the future through the act of refilling water. At the root of it is the desire to "protect what is precious and pass it on to the next generation."
This video presents her origin story along with a dialogue about the meaning of acting based on "what one wants to protect." Please watch the dialogue that resonates with "SAVE WHAT WE LOVE," a phrase Hachidori Denryoku has cherished.
Watch the video
◼︎About mymizu https://www.mymi