What is the 'Physical PPA' that Tokyo Metro has introduced?

It is a power purchase agreement where electricity from renewable energy sources is supplied directly to specific facilities through a retail electricity provider. Tokyo Metro has implemented this at its Comprehensive Training Center to achieve substantial renewable energy utilization.

What is the expected CO2 reduction effect of this initiative?

It is expected to reduce CO2 emissions by approximately 719 tons annually, which is equivalent to the annual electricity consumption of the Comprehensive Training Center.

Why combine wind and solar power?

By combining wind and solar power, which have different generation characteristics, the 'hourly matching' ratio of electricity demand and generation can be increased, allowing for more stable supply of renewable energy.

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Tokyo Metro Introduces Physical PPA to Comprehensive Training Center

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Tokyo Metro, Cosmo Eco Power, and Cosmo Energy Solutions have signed an off-site physical PPA to provide renewable energy from wind and solar sources to the railway's training center, starting April 2026.

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Frequently Asked Questions

Q: What is the 'Physical PPA' that Tokyo Metro has introduced?: A: It is a power purchase agreement where electricity from renewable energy sources is supplied directly to specific facilities through a retail electricity provider. Tokyo Metro has implemented this at its Comprehensive Training Center to achieve substantial renewable energy utilization.
Q: What is the expected CO2 reduction effect of this initiative?: A: It is expected to reduce CO2 emissions by approximately 719 tons annually, which is equivalent to the annual electricity consumption of the Comprehensive Training Center.
Q: Why combine wind and solar power?: A: By combining wind and solar power, which have different generation characteristics, the 'hourly matching' ratio of electricity demand and generation can be increased, allowing for more stable supply of renewable energy.