Green Option (Carbon Offset)
Total amount of green power purchased |
529,247kWhGreen Power Certificate |
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- *As of the end of September 2024.
Service Overview
Green Option (Carbon Offset) is a service which you can offset the CO2 emission for using the internet by purchasing natural energy.
Carbon offset
Carbon Offset is a mechanism that addresses the heat-trapping gases such as carbon dioxide that causes global warming, and tries to reduce, or negate, its effect through clean energy businesses, afforestation, forestry preservation, etc.
The concept is to not only reduce CO2 emission through energy savings, but also to use the carbon offset system in order to eliminate and reduce the still emitted CO2. It originated in Europe and has recently found its way to Japan.
Natural energy
Natural energy is energy obtained from natural phenomena such as the sun, wind, water, biomass and geothermal heat. While reserves of fossil fuel energy such as oil and coal are limited, we will not easily run out of the earth's natural energy, and it is said that renewable energy can easily and abundantly be obtained.
Energy conservation (fossil fuel reduction) creates value through the reduction of carbon dioxide emissions and, when combined with the value created through the use of natural energy to create electricity, it translates into real environmental value.
Green Power Certificate
Green Power is generated at several sites. At each link you can view the certificates by each time period.
- Green Power Certificate (For April 2022 to March 2023)
- Green Power Certificate (For April 2020 to February 2021)
- Green Power Certificate (For January 2019 to December 2019)
- Green Power Certificate (For April 2021 to March 2022)
- Green Power Certificate (For April 2021 to March 2022)
- Green Power Certificate (For March 2019 to November 2019)
- Green Power Certificate (For March 2018 to november 2019)
- Green Power Certificate (For April 2018 to February 2019)
- Green Power Certificate (For April 2018 to February 2019)
- Green Power Certificate (For April 2017 to March 2018)
- Green Power Certificate (For April 2016 to March 2018)
- Green Power Certificate (For April 2016 to March 2017)
- Green Power Certificate (For April 2015 to March 2017)
- Green Power Certificate (For April 2015 to March 2016)
- Green Power Certificate (For April 2015 to March 2016)
- Green Power Certificate (For April 2014 to March 2015)
- Green Power Certificate (For September 2013 to March 2014)
- Green Power Certificate (For April 2013 to March 2014)
- Green Power Certificate (For October 2011 to September 2013)
- Green Power Certificate (For October 2011 to March 2012)
- Green Power Certificate (For November 2011 to March 2013)
- Green Power Certificate (For April 2011 to March 2012)
- Green Power Certificate (For November 2010 to March 2011)
- Green Power Certificate (For July 2010 to March 2011)
- Green Power Certificate (For April 2010 to March 2011)
- Green Power Certificate (For October 2009 to March 2010)
- Green Power Certificate (For June 2008 to June 2009)
- Green Power Certificate (For March 2008 to November 2008)
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*Asahi Net is taking proceeds from the Green Option charges to purchase natural energy through Smart Eco Energy which are used to fund power generation by natural energy.
Japan Quality Assurance Organization (JQA), which is a third-party organization, evaluates and issues Green Power Certification for power generation by natural energy.
For more about Green Power Certification, please refer to this webpage (in Japanese).
Price
Monthly charge |
100yen |
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*All charges shown on this page include tax.
Application for Green Option (Carbon Offset)
Apply Online (Members)
Apply by Phone
0120-577-135
Open Hours 10 a.m-5 p.m., Monday to Friday, excluding national holidays
- *If you are a first-time Asahi Net customer, please first apply for our connection service before applying for this service. Click here to see the list of connection services.