What is it?

A program to shift energy companies from fossil fuel use to a higher use of renewable energy.

How does it work?

Under the program Tokyo Electric Power and other power producer and suppliers (PPSs), are required to release plans and reports including:

* the CO2 emission factors (CO2 emission factor: Greenhouse gas emission per electricity kilowatt hour)
* the reduction target for the factor
* the actual introduction of renewable energy
* future schedules for the introduction of renewable energy

The environment-consciousness of these electricity companies is then officially announced through the release of these plans and reports. Importantly, this helps electricity customers choose the most environment-conscious companies, driving competition for renewably sourced energy.

Companies that do not and announce the findings of their reports are then formally asked to do so by the Tokyo Metropolitan Government (TMG). If the company still does not submit details, then the Government announces its name to the public, as a non-participant.

Electricity companies are reducing their CO2 emission factors in two ways:

Internal efficiencies

* improving their existing power generation units; and
* switching to cleaner fuels.(From coal and oil to natural gas)

Supply efficiencies

* generating and purchasing more renewable energy, such as biomass, hydraulic power and wind power;
* each company has different plans to increase renewable energy and renewable resources.

Tokyo Renewable Energy Strategy

TMG has also developed the Tokyo Renewable Energy Strategy - which sets a strong target of 20% renewable energy supply by 2020 for the city. The Strategy also includes a new framework setting out the rules that govern renewable energy use in large-scale facilities.